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openwrt/target/linux/olpc/patches/100-olpc.patch

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diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig
index 97b64d7..92ceab7 100644
--- a/arch/i386/Kconfig
+++ b/arch/i386/Kconfig
@@ -796,6 +796,15 @@ config SECCOMP
If unsure, say Y. Only embedded should say N here.
+config VGA_NOPROBE
+ bool "Don't probe VGA at boot" if EMBEDDED
+ default n
+ help
+ Saying Y here will cause the kernel to not probe VGA at boot time.
+ This will break everything that depends on the probed screen
+ data. Say N here unless you are absolutely sure this is what you
+ want.
+
source kernel/Kconfig.hz
config KEXEC
@@ -1120,6 +1129,9 @@ config PCI_GODIRECT
config PCI_GOANY
bool "Any"
+config PCI_GOOLPC
+ bool "OLPC"
+
endchoice
config PCI_BIOS
@@ -1129,7 +1141,7 @@ config PCI_BIOS
config PCI_DIRECT
bool
- depends on PCI && ((PCI_GODIRECT || PCI_GOANY) || X86_VISWS)
+ depends on PCI && ((PCI_GODIRECT || PCI_GOANY || PCI_GOOLPC) || X86_VISWS)
default y
config PCI_MMCONFIG
@@ -1137,6 +1149,11 @@ config PCI_MMCONFIG
depends on PCI && ACPI && (PCI_GOMMCONFIG || PCI_GOANY)
default y
+config PCI_OLPC
+ bool
+ depends on PCI && PCI_GOOLPC
+ default y
+
source "drivers/pci/pcie/Kconfig"
source "drivers/pci/Kconfig"
@@ -1206,10 +1223,43 @@ config SCx200HR_TIMER
processor goes idle (as is done by the scheduler). The
other workaround is idle=poll boot option.
+config GEODE_MFGPT_TIMER
+ bool "Geode Multi-Function General Purpose Timer (mfgpt) Support"
+ depends on MGEODE_LX && GENERIC_TIME && GENERIC_CLOCKEVENTS
+ default y
+ help
+ This driver provides a clock event source based on the MFGPT
+ timer(s) in the CS5535 and CS5536 companion chip for the geode.
+ MFGPTs have a better resolution and max interval than the
+ generic PIT, and are suitable for use as high-res timers.
+
config K8_NB
def_bool y
depends on AGP_AMD64
+config OLPC
+ bool "OLPC Support"
+ default n
+ help
+ Add support for detecting the unique features of the OLPC
+ Childrens Machine
+
+config OLPC_PM
+ tristate "OLPC power management support"
+ default y
+ depends on OLPC
+ help
+ Add support for the Geode power management facilities on the
+ OLPC Childrens Machine
+
+config OPEN_FIRMWARE
+ bool "Support for Open Firmware"
+ default y if OLPC
+ help
+ This option adds support for the implementation of Open Firmware
+ that is used on the OLPC Children's Machine.
+ If unsure, say N here.
+
source "drivers/pcmcia/Kconfig"
source "drivers/pci/hotplug/Kconfig"
diff --git a/arch/i386/kernel/Makefile b/arch/i386/kernel/Makefile
index 9d33b00..2e2cf42 100644
--- a/arch/i386/kernel/Makefile
+++ b/arch/i386/kernel/Makefile
@@ -39,13 +39,17 @@ obj-$(CONFIG_VM86) += vm86.o
obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
obj-$(CONFIG_HPET_TIMER) += hpet.o
obj-$(CONFIG_K8_NB) += k8.o
-obj-$(CONFIG_MGEODE_LX) += geode.o
+obj-$(CONFIG_MGEODE_LX) += geode.o mfgpt.o
obj-$(CONFIG_VMI) += vmi.o vmiclock.o
obj-$(CONFIG_PARAVIRT) += paravirt.o
obj-y += pcspeaker.o
obj-$(CONFIG_SCx200) += scx200.o
+obj-$(CONFIG_OLPC) += olpc.o
+obj-$(CONFIG_OLPC_PM) += olpc-pm.o olpc-wakeup.o
+obj-$(CONFIG_OPEN_FIRMWARE) += ofw.o
+obj-$(CONFIG_PROMFS_FS) += prom.o
# vsyscall.o contains the vsyscall DSO images as __initdata.
# We must build both images before we can assemble it.
diff --git a/arch/i386/kernel/geode.c b/arch/i386/kernel/geode.c
index 41e8aec..637e301 100644
--- a/arch/i386/kernel/geode.c
+++ b/arch/i386/kernel/geode.c
@@ -145,10 +145,14 @@ EXPORT_SYMBOL_GPL(geode_gpio_setup_event);
static int __init geode_southbridge_init(void)
{
+ int timers;
+
if (!is_geode())
return -ENODEV;
init_lbars();
+ timers = geode_mfgpt_detect();
+ printk(KERN_INFO "geode-mfgpt: %d timers available.\n", timers);
return 0;
}
diff --git a/arch/i386/kernel/head.S b/arch/i386/kernel/head.S
index 8f03821..3176280 100644
--- a/arch/i386/kernel/head.S
+++ b/arch/i386/kernel/head.S
@@ -117,8 +117,34 @@ ENTRY(startup_32)
movl $(COMMAND_LINE_SIZE/4),%ecx
rep
movsl
+
+#ifdef CONFIG_OPEN_FIRMWARE
+/*
+ * If Open Firmware booted us, save the OFW client interface callback address
+ * and preserve the OFW page mappings by priming the kernel's new page
+ * directory area with a copy of the OFW page directory. That lets OFW stay
+ * resident in high memory (high in both the virtual and physical spaces)
+ * for at least long enough to copy out the device tree.
+ */
1:
+ movl $(boot_params - __PAGE_OFFSET + OFW_INFO_OFFSET), %ebp
+ cmpl $0x2057464F, (%ebp) /* Magic number "OFW " */
+ jne 1f
+
+ mov 0x8(%ebp), %eax /* Save callback address */
+ mov %eax, call_firmware - __PAGE_OFFSET
+ /* Copy the OFW pdir into swapper_pg_dir */
+ movl %esi, %edx /* save %esi */
+ movl $(swapper_pg_dir - __PAGE_OFFSET), %edi
+ movl %cr3, %esi /* Source is current pg_dir base address */
+ movl $1024, %ecx /* Number of page directory entries */
+ rep
+ movsl
+ movl %edx, %esi /* restore %esi */
+#endif
+
+1:
/*
* Initialize page tables. This creates a PDE and a set of page
* tables, which are located immediately beyond _end. The variable
@@ -129,6 +155,7 @@ ENTRY(startup_32)
* Warning: don't use %esi or the stack in this code. However, %esp
* can be used as a GPR if you really need it...
*/
+
page_pde_offset = (__PAGE_OFFSET >> 20);
movl $(pg0 - __PAGE_OFFSET), %edi
diff --git a/arch/i386/kernel/setup.c b/arch/i386/kernel/setup.c
index d474cd6..c4b26ba 100644
--- a/arch/i386/kernel/setup.c
+++ b/arch/i386/kernel/setup.c
@@ -362,8 +362,10 @@ void __init zone_sizes_init(void)
{
unsigned long max_zone_pfns[MAX_NR_ZONES];
memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
+#ifdef CONFIG_ZONE_DMA
max_zone_pfns[ZONE_DMA] =
virt_to_phys((char *)MAX_DMA_ADDRESS) >> PAGE_SHIFT;
+#endif
max_zone_pfns[ZONE_NORMAL] = max_low_pfn;
#ifdef CONFIG_HIGHMEM
max_zone_pfns[ZONE_HIGHMEM] = highend_pfn;
@@ -428,6 +430,9 @@ void __init setup_bootmem_allocator(void)
*/
acpi_reserve_bootmem();
#endif
+#ifdef CONFIG_OLPC_PM
+ reserve_bootmem(0xf0000, PAGE_SIZE);
+#endif
#ifdef CONFIG_X86_FIND_SMP_CONFIG
/*
* Find and reserve possible boot-time SMP configuration:
diff --git a/arch/i386/pci/Makefile b/arch/i386/pci/Makefile
index 44650e0..1250a7b 100644
--- a/arch/i386/pci/Makefile
+++ b/arch/i386/pci/Makefile
@@ -3,6 +3,7 @@ obj-y := i386.o init.o
obj-$(CONFIG_PCI_BIOS) += pcbios.o
obj-$(CONFIG_PCI_MMCONFIG) += mmconfig.o direct.o mmconfig-shared.o
obj-$(CONFIG_PCI_DIRECT) += direct.o
+obj-$(CONFIG_PCI_OLPC) += olpc.o
pci-y := fixup.o
pci-$(CONFIG_ACPI) += acpi.o
diff --git a/arch/i386/pci/init.c b/arch/i386/pci/init.c
index 3de9f9b..0f5f7dd 100644
--- a/arch/i386/pci/init.c
+++ b/arch/i386/pci/init.c
@@ -14,6 +14,9 @@ static __init int pci_access_init(void)
#ifdef CONFIG_PCI_MMCONFIG
pci_mmcfg_init(type);
#endif
+#ifdef CONFIG_PCI_OLPC
+ pci_olpc_init();
+#endif
if (raw_pci_ops)
return 0;
#ifdef CONFIG_PCI_BIOS
diff --git a/arch/i386/pci/pci.h b/arch/i386/pci/pci.h
index 8c66f27..a67e617 100644
--- a/arch/i386/pci/pci.h
+++ b/arch/i386/pci/pci.h
@@ -93,6 +93,7 @@ extern void pci_direct_init(int type);
extern void pci_pcbios_init(void);
extern void pci_mmcfg_init(int type);
extern void pcibios_sort(void);
+extern void pci_olpc_init(void);
/* pci-mmconfig.c */
diff --git a/drivers/Makefile b/drivers/Makefile
index f0878b2..c033d30 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -23,6 +23,8 @@ obj-y += char/
obj-$(CONFIG_CONNECTOR) += connector/
+obj-$(CONFIG_SYSPROF) += sysprof/
+
# i810fb and intelfb depend on char/agp/
obj-$(CONFIG_FB_I810) += video/i810/
obj-$(CONFIG_FB_INTEL) += video/intelfb/
diff --git a/drivers/char/vt_ioctl.c b/drivers/char/vt_ioctl.c
index c6f6f42..55ae42c 100644
--- a/drivers/char/vt_ioctl.c
+++ b/drivers/char/vt_ioctl.c
@@ -37,6 +37,9 @@
char vt_dont_switch;
extern struct tty_driver *console_driver;
+/* Add a notifier chain to inform drivers of a VT_TEXT/VT_GRAPHICS switch */
+RAW_NOTIFIER_HEAD(console_notifier_list);
+
#define VT_IS_IN_USE(i) (console_driver->ttys[i] && console_driver->ttys[i]->count)
#define VT_BUSY(i) (VT_IS_IN_USE(i) || i == fg_console || vc_cons[i].d == sel_cons)
@@ -491,6 +494,14 @@ int vt_ioctl(struct tty_struct *tty, struct file * file,
vc->vc_mode = (unsigned char) arg;
if (console != fg_console)
return 0;
+
+ /* Notify listeners if the current fg_console has switched */
+
+ raw_notifier_call_chain(&console_notifier_list,
+ (arg == KD_TEXT) ?
+ CONSOLE_EVENT_SWITCH_TEXT :
+ CONSOLE_EVENT_SWITCH_GRAPHICS, 0);
+
/*
* explicitly blank/unblank the screen if switching modes
*/
diff --git a/drivers/i2c/busses/scx200_acb.c b/drivers/i2c/busses/scx200_acb.c
index e6c4a2b..874d623 100644
--- a/drivers/i2c/busses/scx200_acb.c
+++ b/drivers/i2c/busses/scx200_acb.c
@@ -46,6 +46,10 @@ static int base[MAX_DEVICES] = { 0x820, 0x840 };
module_param_array(base, int, NULL, 0);
MODULE_PARM_DESC(base, "Base addresses for the ACCESS.bus controllers");
+static unsigned int smbclk = 0x70;
+module_param(smbclk, uint, 0);
+MODULE_PARM_DESC(smbclk, "Specify the SMB_CLK value");
+
#define POLL_TIMEOUT (HZ/5)
enum scx200_acb_state {
@@ -108,6 +112,7 @@ struct scx200_acb_iface {
#define ACBADDR (iface->base + 4)
#define ACBCTL2 (iface->base + 5)
#define ACBCTL2_ENABLE 0x01
+#define ACBCTL3 (iface->base + 6)
/************************************************************************/
@@ -392,11 +397,13 @@ static __init int scx200_acb_probe(struct scx200_acb_iface *iface)
{
u8 val;
- /* Disable the ACCESS.bus device and Configure the SCL
- frequency: 16 clock cycles */
- outb(0x70, ACBCTL2);
+ /* Disable the ACCESS.bus device and Configure the SCL */
+
+ outb((smbclk & 0x7F) << 1, ACBCTL2);
+
+ outb((smbclk >> 7) & 0xFF, ACBCTL3);
- if (inb(ACBCTL2) != 0x70) {
+ if (inb(ACBCTL2) != ((smbclk & 0x7F) << 1)) {
pr_debug(NAME ": ACBCTL2 readback failed\n");
return -ENXIO;
}
diff --git a/drivers/input/keyboard/atkbd.c b/drivers/input/keyboard/atkbd.c
index 41fc3d0..a15e7a9 100644
--- a/drivers/input/keyboard/atkbd.c
+++ b/drivers/input/keyboard/atkbd.c
@@ -63,12 +63,25 @@ static int atkbd_extra;
module_param_named(extra, atkbd_extra, bool, 0);
MODULE_PARM_DESC(extra, "Enable extra LEDs and keys on IBM RapidAcces, EzKey and similar keyboards");
+#define ATKBD_KEY_UNKNOWN 0
+#define ATKBD_KEY_NULL 0xFF0000FF
+
+#define ATKBD_SCR_1 0xFF0000FE
+#define ATKBD_SCR_2 0xFF0000FD
+#define ATKBD_SCR_4 0xFF0000FC
+#define ATKBD_SCR_8 0xFF0000FB
+#define ATKBD_SCR_CLICK 0xFF0000FA
+#define ATKBD_SCR_LEFT 0xFF0000F9
+#define ATKBD_SCR_RIGHT 0xFF0000F8
+
+#define ATKBD_SPECIAL 0xFF0000F8
+
/*
* Scancode to keycode tables. These are just the default setting, and
* are loadable via an userland utility.
*/
-static unsigned char atkbd_set2_keycode[512] = {
+static unsigned int atkbd_set2_keycode[512] = {
#ifdef CONFIG_KEYBOARD_ATKBD_HP_KEYCODES
@@ -87,11 +100,17 @@ static unsigned char atkbd_set2_keycode[512] = {
82, 83, 80, 76, 77, 72, 1, 69, 87, 78, 81, 74, 55, 73, 70, 99,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 217,100,255, 0, 97,165, 0, 0,156, 0, 0, 0, 0, 0, 0,125,
+
+ 217,100,ATKBD_KEY_NULL, 0, 97,165, 0, 0,
+ 156, 0, 0, 0, 0, 0, 0,125,
+
173,114, 0,113, 0, 0, 0,126,128, 0, 0,140, 0, 0, 0,127,
159, 0,115, 0,164, 0, 0,116,158, 0,172,166, 0, 0, 0,142,
157, 0, 0, 0, 0, 0, 0, 0,155, 0, 98, 0, 0,163, 0, 0,
- 226, 0, 0, 0, 0, 0, 0, 0, 0,255, 96, 0, 0, 0,143, 0,
+
+ 226, 0, 0, 0, 0, 0, 0, 0,
+ 0,ATKBD_KEY_NULL, 96, 0, 0, 0,143, 0,
+
0, 0, 0, 0, 0, 0, 0, 0, 0,107, 0,105,102, 0, 0,112,
110,111,108,112,106,103, 0,119, 0,118,109, 0, 99,104,119, 0,
@@ -150,19 +169,6 @@ static unsigned char atkbd_unxlate_table[128] = {
#define ATKBD_RET_HANGEUL 0xf2
#define ATKBD_RET_ERR 0xff
-#define ATKBD_KEY_UNKNOWN 0
-#define ATKBD_KEY_NULL 255
-
-#define ATKBD_SCR_1 254
-#define ATKBD_SCR_2 253
-#define ATKBD_SCR_4 252
-#define ATKBD_SCR_8 251
-#define ATKBD_SCR_CLICK 250
-#define ATKBD_SCR_LEFT 249
-#define ATKBD_SCR_RIGHT 248
-
-#define ATKBD_SPECIAL 248
-
#define ATKBD_LED_EVENT_BIT 0
#define ATKBD_REP_EVENT_BIT 1
@@ -174,7 +180,7 @@ static unsigned char atkbd_unxlate_table[128] = {
#define ATKBD_XL_HANJA 0x20
static struct {
- unsigned char keycode;
+ unsigned int keycode;
unsigned char set2;
} atkbd_scroll_keys[] = {
{ ATKBD_SCR_1, 0xc5 },
@@ -200,7 +206,7 @@ struct atkbd {
char phys[32];
unsigned short id;
- unsigned char keycode[512];
+ unsigned int keycode[512];
unsigned char set;
unsigned char translated;
unsigned char extra;
@@ -351,7 +357,7 @@ static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data,
unsigned int code = data;
int scroll = 0, hscroll = 0, click = -1, add_release_event = 0;
int value;
- unsigned char keycode;
+ unsigned int keycode;
#ifdef ATKBD_DEBUG
printk(KERN_DEBUG "atkbd.c: Received %02x flags %02x\n", data, flags);
@@ -856,9 +862,11 @@ static void atkbd_set_keycode_table(struct atkbd *atkbd)
atkbd->keycode[i | 0x80] = atkbd_scroll_keys[j].keycode;
}
} else if (atkbd->set == 3) {
- memcpy(atkbd->keycode, atkbd_set3_keycode, sizeof(atkbd->keycode));
+ for (i = 0; i < ARRAY_SIZE(atkbd_set3_keycode); i++)
+ atkbd->keycode[i] = atkbd_set3_keycode[i];
} else {
- memcpy(atkbd->keycode, atkbd_set2_keycode, sizeof(atkbd->keycode));
+ for (i = 0; i < ARRAY_SIZE(atkbd_set2_keycode); i++)
+ atkbd->keycode[i] = atkbd_set2_keycode[i];
if (atkbd->scroll)
for (i = 0; i < ARRAY_SIZE(atkbd_scroll_keys); i++)
@@ -925,8 +933,8 @@ static void atkbd_set_device_attrs(struct atkbd *atkbd)
}
input_dev->keycode = atkbd->keycode;
- input_dev->keycodesize = sizeof(unsigned char);
- input_dev->keycodemax = ARRAY_SIZE(atkbd_set2_keycode);
+ input_dev->keycodesize = sizeof(unsigned int);
+ input_dev->keycodemax = ARRAY_SIZE(atkbd->keycode);
for (i = 0; i < 512; i++)
if (atkbd->keycode[i] && atkbd->keycode[i] < ATKBD_SPECIAL)
@@ -1017,6 +1025,10 @@ static int atkbd_connect(struct serio *serio, struct serio_driver *drv)
return err;
}
+#ifdef CONFIG_OLPC
+#include <asm/olpc.h>
+#endif
+
/*
* atkbd_reconnect() tries to restore keyboard into a sane state and is
* most likely called on resume.
@@ -1027,6 +1039,12 @@ static int atkbd_reconnect(struct serio *serio)
struct atkbd *atkbd = serio_get_drvdata(serio);
struct serio_driver *drv = serio->drv;
+#ifdef CONFIG_OLPC
+ if (olpc_rev_after(OLPC_REV_B2))
+ if (serio->dev.power.power_state.event != PM_EVENT_ON)
+ return 0;
+#endif
+
if (!atkbd || !drv) {
printk(KERN_DEBUG "atkbd: reconnect request, but serio is disconnected, ignoring...\n");
return -1;
diff --git a/drivers/input/mouse/Kconfig b/drivers/input/mouse/Kconfig
index 7bbea09..6febbc5 100644
--- a/drivers/input/mouse/Kconfig
+++ b/drivers/input/mouse/Kconfig
@@ -96,6 +96,16 @@ config MOUSE_PS2_TOUCHKIT
If unsure, say N.
+config MOUSE_PS2_OLPC
+ bool "OLPC PS/2 mouse protocol extension" if EMBEDDED
+ default n
+ depends on MOUSE_PS2 && OLPC
+ ---help---
+ Say Y here if you have an OLPC PS/2 touchpad connected to
+ your system.
+
+ If unsure, say N.
+
config MOUSE_SERIAL
tristate "Serial mouse"
select SERIO
diff --git a/drivers/input/mouse/Makefile b/drivers/input/mouse/Makefile
index 9e6e363..f4654ce 100644
--- a/drivers/input/mouse/Makefile
+++ b/drivers/input/mouse/Makefile
@@ -24,3 +24,4 @@ psmouse-$(CONFIG_MOUSE_PS2_LOGIPS2PP) += logips2pp.o
psmouse-$(CONFIG_MOUSE_PS2_LIFEBOOK) += lifebook.o
psmouse-$(CONFIG_MOUSE_PS2_TRACKPOINT) += trackpoint.o
psmouse-$(CONFIG_MOUSE_PS2_TOUCHKIT) += touchkit_ps2.o
+psmouse-$(CONFIG_MOUSE_PS2_OLPC) += olpc.o
diff --git a/drivers/input/mouse/psmouse-base.c b/drivers/input/mouse/psmouse-base.c
index b9f0fb2..edcdb68 100644
--- a/drivers/input/mouse/psmouse-base.c
+++ b/drivers/input/mouse/psmouse-base.c
@@ -26,6 +26,7 @@
#include "synaptics.h"
#include "logips2pp.h"
#include "alps.h"
+#include "olpc.h"
#include "lifebook.h"
#include "trackpoint.h"
#include "touchkit_ps2.h"
@@ -103,7 +104,7 @@ static struct attribute_group psmouse_attribute_group = {
*/
static DEFINE_MUTEX(psmouse_mutex);
-static struct workqueue_struct *kpsmoused_wq;
+struct workqueue_struct *kpsmoused_wq;
struct psmouse_protocol {
enum psmouse_type type;
@@ -320,7 +321,7 @@ static irqreturn_t psmouse_interrupt(struct serio *serio,
goto out;
}
- if (psmouse->packet[1] == PSMOUSE_RET_ID) {
+ if (psmouse->packet[1] == PSMOUSE_RET_ID || psmouse->packet[1] == PSMOUSE_RET_BAT) {
__psmouse_set_state(psmouse, PSMOUSE_IGNORE);
serio_reconnect(serio);
goto out;
@@ -631,8 +632,21 @@ static int psmouse_extensions(struct psmouse *psmouse,
}
}
+/*
+ * Try OLPC touchpad.
+ */
if (max_proto > PSMOUSE_IMEX) {
+ if (olpc_detect(psmouse, set_properties) == 0) {
+ if (!set_properties || olpc_init(psmouse) == 0)
+ return PSMOUSE_OLPC;
+/*
+ * Init failed, try basic relative protocols
+ */
+ max_proto = PSMOUSE_IMEX;
+ }
+ }
+ if (max_proto > PSMOUSE_IMEX) {
if (genius_detect(psmouse, set_properties) == 0)
return PSMOUSE_GENPS;
@@ -762,6 +776,14 @@ static const struct psmouse_protocol psmouse_protocols[] = {
.detect = touchkit_ps2_detect,
},
#endif
+#ifdef CONFIG_MOUSE_PS2_OLPC
+ {
+ .type = PSMOUSE_OLPC,
+ .name = "OLPC",
+ .alias = "olpc",
+ .detect = olpc_detect,
+ },
+#endif
{
.type = PSMOUSE_CORTRON,
.name = "CortronPS/2",
diff --git a/drivers/input/mouse/psmouse.h b/drivers/input/mouse/psmouse.h
index 1317bdd..c4857df 100644
--- a/drivers/input/mouse/psmouse.h
+++ b/drivers/input/mouse/psmouse.h
@@ -89,6 +89,7 @@ enum psmouse_type {
PSMOUSE_TRACKPOINT,
PSMOUSE_TOUCHKIT_PS2,
PSMOUSE_CORTRON,
+ PSMOUSE_OLPC,
PSMOUSE_AUTO /* This one should always be last */
};
@@ -96,6 +97,7 @@ int psmouse_sliced_command(struct psmouse *psmouse, unsigned char command);
int psmouse_reset(struct psmouse *psmouse);
void psmouse_set_resolution(struct psmouse *psmouse, unsigned int resolution);
+extern struct workqueue_struct *kpsmoused_wq;
struct psmouse_attribute {
struct device_attribute dattr;
diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c
index c2eea27..3510726 100644
--- a/drivers/input/serio/i8042.c
+++ b/drivers/input/serio/i8042.c
@@ -868,6 +868,11 @@ static long i8042_panic_blink(long count)
#undef DELAY
#ifdef CONFIG_PM
+
+#ifdef CONFIG_OLPC
+#include <asm/olpc.h>
+#endif
+
/*
* Here we try to restore the original BIOS settings. We only want to
* do that once, when we really suspend, not when we taking memory
@@ -878,8 +883,15 @@ static long i8042_panic_blink(long count)
static int i8042_suspend(struct platform_device *dev, pm_message_t state)
{
if (dev->dev.power.power_state.event != state.event) {
+#ifdef CONFIG_OLPC
+ /* Anything newer than B2 remains powered; no reset needed */
+ if (olpc_rev_before(OLPC_REV_PRE_B3)) {
+#endif
if (state.event == PM_EVENT_SUSPEND)
i8042_controller_reset();
+#ifdef CONFIG_OLPC
+ }
+#endif
dev->dev.power.power_state = state;
}
@@ -902,9 +914,15 @@ static int i8042_resume(struct platform_device *dev)
if (dev->dev.power.power_state.event == PM_EVENT_ON)
return 0;
+#ifdef CONFIG_OLPC
+ if (olpc_rev_before(OLPC_REV_PRE_B3)) {
+#endif
error = i8042_controller_check();
if (error)
return error;
+#ifdef CONFIG_OLPC
+ }
+#endif
error = i8042_controller_selftest();
if (error)
diff --git a/drivers/input/serio/serio.c b/drivers/input/serio/serio.c
index 372ca49..c9e5308 100644
--- a/drivers/input/serio/serio.c
+++ b/drivers/input/serio/serio.c
@@ -916,11 +916,22 @@ static int serio_uevent(struct device *dev, char **envp, int num_envp, char *buf
#endif /* CONFIG_HOTPLUG */
#ifdef CONFIG_PM
+
+#ifdef CONFIG_OLPC
+#include <asm/olpc.h>
+#endif
+
static int serio_suspend(struct device *dev, pm_message_t state)
{
if (dev->power.power_state.event != state.event) {
+#ifdef CONFIG_OLPC
+ if (olpc_rev_before(OLPC_REV_PRE_B3)) {
+#endif
if (state.event == PM_EVENT_SUSPEND)
serio_cleanup(to_serio_port(dev));
+#ifdef CONFIG_OLPC
+ }
+#endif
dev->power.power_state = state;
}
diff --git a/drivers/media/video/cafe_ccic.c b/drivers/media/video/cafe_ccic.c
index ef53618..47881d2 100644
--- a/drivers/media/video/cafe_ccic.c
+++ b/drivers/media/video/cafe_ccic.c
@@ -63,13 +63,13 @@ MODULE_SUPPORTED_DEVICE("Video");
*/
#define MAX_DMA_BUFS 3
-static int alloc_bufs_at_load = 0;
-module_param(alloc_bufs_at_load, bool, 0444);
-MODULE_PARM_DESC(alloc_bufs_at_load,
- "Non-zero value causes DMA buffers to be allocated at module "
- "load time. This increases the chances of successfully getting "
- "those buffers, but at the cost of nailing down the memory from "
- "the outset.");
+static int alloc_bufs_at_read = 0;
+module_param(alloc_bufs_at_read, bool, 0444);
+MODULE_PARM_DESC(alloc_bufs_at_read,
+ "Non-zero value causes DMA buffers to be allocated when the "
+ "video capture device is read, rather than at module load "
+ "time. This saves memory, but decreases the chances of "
+ "successfully getting those buffers.");
static int n_dma_bufs = 3;
module_param(n_dma_bufs, uint, 0644);
@@ -370,6 +370,10 @@ static int cafe_smbus_write_data(struct cafe_camera *cam,
rval = value | ((command << TWSIC1_ADDR_SHIFT) & TWSIC1_ADDR);
cafe_reg_write(cam, REG_TWSIC1, rval);
spin_unlock_irqrestore(&cam->dev_lock, flags);
+ mdelay(2); /* It'll probably take about 900µs anyway, and the
+ CAFÉ is apparently quite sensitive to being poked
+ at this point. If we can work out precisely what's
+ going on and reduce this delay, it would be nice. */
/*
* Time to wait for the write to complete. THIS IS A RACY
@@ -1503,7 +1507,7 @@ static int cafe_v4l_release(struct inode *inode, struct file *filp)
}
if (cam->users == 0) {
cafe_ctlr_power_down(cam);
- if (! alloc_bufs_at_load)
+ if (alloc_bufs_at_read)
cafe_free_dma_bufs(cam);
}
mutex_unlock(&cam->s_mutex);
@@ -2162,7 +2166,7 @@ static int cafe_pci_probe(struct pci_dev *pdev,
/*
* If so requested, try to get our DMA buffers now.
*/
- if (alloc_bufs_at_load) {
+ if (!alloc_bufs_at_read) {
if (cafe_alloc_dma_bufs(cam, 1))
cam_warn(cam, "Unable to alloc DMA buffers at load"
" will try again later.");
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 73e248f..f7afde3 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -202,5 +202,10 @@ config THINKPAD_ACPI_BAY
If you are not sure, say Y here.
+config EEPROM_93CX6
+ tristate "EEPROM 93CX6 support"
+ ---help---
+ This is a driver for the EEPROM chipsets 93c46 and 93c66.
+ The driver supports both read as well as write commands.
endif # MISC_DEVICES
diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
index 93fe2e5..e17eb8e 100644
--- a/drivers/mmc/card/block.c
+++ b/drivers/mmc/card/block.c
@@ -229,6 +229,11 @@ static int mmc_blk_issue_rq(struct mmc_queue *mq, struct request *req)
if (brq.data.blocks > card->host->max_blk_count)
brq.data.blocks = card->host->max_blk_count;
+ if (mmc_card_sd(card) && !card->host->ios.clock) {
+ printk(KERN_ERR "%s: I/O to stopped card\n",
+ req->rq_disk->disk_name);
+ goto cmd_err;
+ }
mmc_set_data_timeout(&brq.data, card, rq_data_dir(req) != READ);
/*
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 20a7d89..9abbb58 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -411,6 +411,12 @@ static void sdhci_prepare_data(struct sdhci_host *host, struct mmc_data *data)
break;
}
+ /*
+ * There's an off-by-one error in the hw that we need to
+ * compensate for.
+ */
+ count++;
+
if (count >= 0xF) {
printk(KERN_WARNING "%s: Too large timeout requested!\n",
mmc_hostname(host->mmc));
@@ -676,19 +682,17 @@ static void sdhci_set_power(struct sdhci_host *host, unsigned short power)
if (!(host->chip->quirks & SDHCI_QUIRK_SINGLE_POWER_WRITE))
writeb(0, host->ioaddr + SDHCI_POWER_CONTROL);
- pwr = SDHCI_POWER_ON;
-
switch (1 << power) {
case MMC_VDD_165_195:
- pwr |= SDHCI_POWER_180;
+ pwr = SDHCI_POWER_180;
break;
case MMC_VDD_29_30:
case MMC_VDD_30_31:
- pwr |= SDHCI_POWER_300;
+ pwr = SDHCI_POWER_300;
break;
case MMC_VDD_32_33:
case MMC_VDD_33_34:
- pwr |= SDHCI_POWER_330;
+ pwr = SDHCI_POWER_330;
break;
default:
BUG();
@@ -696,6 +700,10 @@ static void sdhci_set_power(struct sdhci_host *host, unsigned short power)
writeb(pwr, host->ioaddr + SDHCI_POWER_CONTROL);
+ pwr |= SDHCI_POWER_ON;
+
+ writeb(pwr, host->ioaddr + SDHCI_POWER_CONTROL);
+
out:
host->power = power;
}
diff --git a/drivers/mtd/Kconfig b/drivers/mtd/Kconfig
index fbec8cd..8848e8a 100644
--- a/drivers/mtd/Kconfig
+++ b/drivers/mtd/Kconfig
@@ -278,6 +278,14 @@ config SSFDC
This enables read only access to SmartMedia formatted NAND
flash. You can mount it with FAT file system.
+config MTD_OOPS
+ tristate "Log panic/oops to an MTD buffer"
+ depends on MTD
+ help
+ This enables panic and oops messages to be logged to a circular
+ buffer in a flash partition where it can be read back at some
+ later point.
+
source "drivers/mtd/chips/Kconfig"
source "drivers/mtd/maps/Kconfig"
diff --git a/drivers/mtd/Makefile b/drivers/mtd/Makefile
index 6d958a4..7f0b04b 100644
--- a/drivers/mtd/Makefile
+++ b/drivers/mtd/Makefile
@@ -22,6 +22,7 @@ obj-$(CONFIG_NFTL) += nftl.o
obj-$(CONFIG_INFTL) += inftl.o
obj-$(CONFIG_RFD_FTL) += rfd_ftl.o
obj-$(CONFIG_SSFDC) += ssfdc.o
+obj-$(CONFIG_MTD_OOPS) += mtdoops.o
nftl-objs := nftlcore.o nftlmount.o
inftl-objs := inftlcore.o inftlmount.o
diff --git a/drivers/mtd/chips/cfi_cmdset_0001.c b/drivers/mtd/chips/cfi_cmdset_0001.c
index 2f19fa7..39eff9f 100644
--- a/drivers/mtd/chips/cfi_cmdset_0001.c
+++ b/drivers/mtd/chips/cfi_cmdset_0001.c
@@ -526,7 +526,7 @@ static int cfi_intelext_partition_fixup(struct mtd_info *mtd,
struct cfi_pri_intelext *extp = cfi->cmdset_priv;
/*
- * Probing of multi-partition flash ships.
+ * Probing of multi-partition flash chips.
*
* To support multiple partitions when available, we simply arrange
* for each of them to have their own flchip structure even if they
@@ -1780,7 +1780,7 @@ static int __xipram do_erase_oneblock(struct map_info *map, struct flchip *chip,
return ret;
}
-int cfi_intelext_erase_varsize(struct mtd_info *mtd, struct erase_info *instr)
+static int cfi_intelext_erase_varsize(struct mtd_info *mtd, struct erase_info *instr)
{
unsigned long ofs, len;
int ret;
@@ -1930,7 +1930,7 @@ static int cfi_intelext_lock(struct mtd_info *mtd, loff_t ofs, size_t len)
printk(KERN_DEBUG "%s: lock status before, ofs=0x%08llx, len=0x%08X\n",
__FUNCTION__, ofs, len);
cfi_varsize_frob(mtd, do_printlockstatus_oneblock,
- ofs, len, 0);
+ ofs, len, NULL);
#endif
ret = cfi_varsize_frob(mtd, do_xxlock_oneblock,
@@ -1940,7 +1940,7 @@ static int cfi_intelext_lock(struct mtd_info *mtd, loff_t ofs, size_t len)
printk(KERN_DEBUG "%s: lock status after, ret=%d\n",
__FUNCTION__, ret);
cfi_varsize_frob(mtd, do_printlockstatus_oneblock,
- ofs, len, 0);
+ ofs, len, NULL);
#endif
return ret;
@@ -1954,7 +1954,7 @@ static int cfi_intelext_unlock(struct mtd_info *mtd, loff_t ofs, size_t len)
printk(KERN_DEBUG "%s: lock status before, ofs=0x%08llx, len=0x%08X\n",
__FUNCTION__, ofs, len);
cfi_varsize_frob(mtd, do_printlockstatus_oneblock,
- ofs, len, 0);
+ ofs, len, NULL);
#endif
ret = cfi_varsize_frob(mtd, do_xxlock_oneblock,
@@ -1964,7 +1964,7 @@ static int cfi_intelext_unlock(struct mtd_info *mtd, loff_t ofs, size_t len)
printk(KERN_DEBUG "%s: lock status after, ret=%d\n",
__FUNCTION__, ret);
cfi_varsize_frob(mtd, do_printlockstatus_oneblock,
- ofs, len, 0);
+ ofs, len, NULL);
#endif
return ret;
@@ -2255,7 +2255,7 @@ static void cfi_intelext_save_locks(struct mtd_info *mtd)
adr = region->offset + block * len;
status = cfi_varsize_frob(mtd,
- do_getlockstatus_oneblock, adr, len, 0);
+ do_getlockstatus_oneblock, adr, len, NULL);
if (status)
set_bit(block, region->lockmap);
else
diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c
index 1f64458..389acc6 100644
--- a/drivers/mtd/chips/cfi_cmdset_0002.c
+++ b/drivers/mtd/chips/cfi_cmdset_0002.c
@@ -1609,7 +1609,7 @@ static int __xipram do_erase_oneblock(struct map_info *map, struct flchip *chip,
}
-int cfi_amdstd_erase_varsize(struct mtd_info *mtd, struct erase_info *instr)
+static int cfi_amdstd_erase_varsize(struct mtd_info *mtd, struct erase_info *instr)
{
unsigned long ofs, len;
int ret;
diff --git a/drivers/mtd/chips/jedec_probe.c b/drivers/mtd/chips/jedec_probe.c
index 58e561e..593e9d6 100644
--- a/drivers/mtd/chips/jedec_probe.c
+++ b/drivers/mtd/chips/jedec_probe.c
@@ -70,6 +70,7 @@
/* Fujitsu */
#define MBM29F040C 0x00A4
+#define MBM29F800BA 0x2258
#define MBM29LV650UE 0x22D7
#define MBM29LV320TE 0x22F6
#define MBM29LV320BE 0x22F9
@@ -129,6 +130,7 @@
#define LH28F640BF 0x00b0
/* ST - www.st.com */
+#define M29F800AB 0x0058
#define M29W800DT 0x00D7
#define M29W800DB 0x005B
#define M29W160DT 0x22C4
@@ -646,6 +648,23 @@ static const struct amd_flash_info jedec_table[] = {
}
}, {
.mfr_id = MANUFACTURER_FUJITSU,
+ .dev_id = MBM29F800BA,
+ .name = "Fujitsu MBM29F800BA",
+ .uaddr = {
+ [0] = MTD_UADDR_0x0AAA_0x0555, /* x8 */
+ [1] = MTD_UADDR_0x0555_0x02AA, /* x16 */
+ },
+ .DevSize = SIZE_1MiB,
+ .CmdSet = P_ID_AMD_STD,
+ .NumEraseRegions= 4,
+ .regions = {
+ ERASEINFO(0x04000,1),
+ ERASEINFO(0x02000,2),
+ ERASEINFO(0x08000,1),
+ ERASEINFO(0x10000,15),
+ }
+ }, {
+ .mfr_id = MANUFACTURER_FUJITSU,
.dev_id = MBM29LV650UE,
.name = "Fujitsu MBM29LV650UE",
.uaddr = {
@@ -1510,6 +1529,23 @@ static const struct amd_flash_info jedec_table[] = {
ERASEINFO(0x1000,256)
}
+ }, {
+ .mfr_id = MANUFACTURER_ST,
+ .dev_id = M29F800AB,
+ .name = "ST M29F800AB",
+ .uaddr = {
+ [0] = MTD_UADDR_0x0AAA_0x0555, /* x8 */
+ [1] = MTD_UADDR_0x0555_0x02AA, /* x16 */
+ },
+ .DevSize = SIZE_1MiB,
+ .CmdSet = P_ID_AMD_STD,
+ .NumEraseRegions= 4,
+ .regions = {
+ ERASEINFO(0x04000,1),
+ ERASEINFO(0x02000,2),
+ ERASEINFO(0x08000,1),
+ ERASEINFO(0x10000,15),
+ }
}, {
.mfr_id = MANUFACTURER_ST, /* FIXME - CFI device? */
.dev_id = M29W800DT,
diff --git a/drivers/mtd/devices/Kconfig b/drivers/mtd/devices/Kconfig
index ff642f8..b4ea64d 100644
--- a/drivers/mtd/devices/Kconfig
+++ b/drivers/mtd/devices/Kconfig
@@ -69,12 +69,21 @@ config MTD_DATAFLASH26
If you have such a board and such a DataFlash, say 'Y'.
config MTD_M25P80
- tristate "Support for M25 SPI Flash"
+ tristate "Support most SPI Flash chips (AT26DF, M25P, W25X, ...)"
depends on SPI_MASTER && EXPERIMENTAL
help
- This enables access to ST M25P80 and similar SPI flash chips,
- used for program and data storage. Set up your spi devices
- with the right board-specific platform data.
+ This enables access to most modern SPI flash chips, used for
+ program and data storage. Series supported include Atmel AT26DF,
+ Spansion S25SL, SST 25VF, ST M25P, and Winbond W25X. Other chips
+ are supported as well. See the driver source for the current list,
+ or to add other chips.
+
+ Note that the original DataFlash chips (AT45 series, not AT26DF),
+ need an entirely different driver.
+
+ Set up your spi devices with the right board-specific platform data,
+ if you want to specify device partitioning or to use a device which
+ doesn't support the JEDEC ID instruction.
config MTD_SLRAM
tristate "Uncached system RAM"
diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
index 78c2511..98df5bc 100644
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -1,5 +1,5 @@
/*
- * MTD SPI driver for ST M25Pxx flash chips
+ * MTD SPI driver for ST M25Pxx (and similar) serial flash chips
*
* Author: Mike Lavender, mike@steroidmicros.com
*
@@ -19,33 +19,32 @@
#include <linux/module.h>
#include <linux/device.h>
#include <linux/interrupt.h>
-#include <linux/interrupt.h>
+#include <linux/mutex.h>
+
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
+
#include <linux/spi/spi.h>
#include <linux/spi/flash.h>
-#include <asm/semaphore.h>
-
-
-/* NOTE: AT 25F and SST 25LF series are very similar,
- * but commands for sector erase and chip id differ...
- */
#define FLASH_PAGESIZE 256
/* Flash opcodes. */
-#define OPCODE_WREN 6 /* Write enable */
-#define OPCODE_RDSR 5 /* Read status register */
-#define OPCODE_READ 3 /* Read data bytes */
-#define OPCODE_PP 2 /* Page program */
-#define OPCODE_SE 0xd8 /* Sector erase */
-#define OPCODE_RES 0xab /* Read Electronic Signature */
+#define OPCODE_WREN 0x06 /* Write enable */
+#define OPCODE_RDSR 0x05 /* Read status register */
+#define OPCODE_READ 0x03 /* Read data bytes (low frequency) */
+#define OPCODE_FAST_READ 0x0b /* Read data bytes (high frequency) */
+#define OPCODE_PP 0x02 /* Page program (up to 256 bytes) */
+#define OPCODE_BE_4K 0x20 /* Erase 4KiB block */
+#define OPCODE_BE_32K 0x52 /* Erase 32KiB block */
+#define OPCODE_SE 0xd8 /* Sector erase (usually 64KiB) */
#define OPCODE_RDID 0x9f /* Read JEDEC ID */
/* Status Register bits. */
#define SR_WIP 1 /* Write in progress */
#define SR_WEL 2 /* Write enable latch */
+/* meaning of other SR_* bits may differ between vendors */
#define SR_BP0 4 /* Block protect 0 */
#define SR_BP1 8 /* Block protect 1 */
#define SR_BP2 0x10 /* Block protect 2 */
@@ -65,9 +64,10 @@
struct m25p {
struct spi_device *spi;
- struct semaphore lock;
+ struct mutex lock;
struct mtd_info mtd;
- unsigned partitioned;
+ unsigned partitioned:1;
+ u8 erase_opcode;
u8 command[4];
};
@@ -150,8 +150,9 @@ static int wait_till_ready(struct m25p *flash)
*/
static int erase_sector(struct m25p *flash, u32 offset)
{
- DEBUG(MTD_DEBUG_LEVEL3, "%s: %s at 0x%08x\n", flash->spi->dev.bus_id,
- __FUNCTION__, offset);
+ DEBUG(MTD_DEBUG_LEVEL3, "%s: %s %dKiB at 0x%08x\n",
+ flash->spi->dev.bus_id, __FUNCTION__,
+ flash->mtd.erasesize / 1024, offset);
/* Wait until finished previous write command. */
if (wait_till_ready(flash))
@@ -161,7 +162,7 @@ static int erase_sector(struct m25p *flash, u32 offset)
write_enable(flash);
/* Set up command buffer. */
- flash->command[0] = OPCODE_SE;
+ flash->command[0] = flash->erase_opcode;
flash->command[1] = offset >> 16;
flash->command[2] = offset >> 8;
flash->command[3] = offset;
@@ -201,13 +202,17 @@ static int m25p80_erase(struct mtd_info *mtd, struct erase_info *instr)
addr = instr->addr;
len = instr->len;
- down(&flash->lock);
+ mutex_lock(&flash->lock);
+
+ /* REVISIT in some cases we could speed up erasing large regions
+ * by using OPCODE_SE instead of OPCODE_BE_4K
+ */
/* now erase those sectors */
while (len) {
if (erase_sector(flash, addr)) {
instr->state = MTD_ERASE_FAILED;
- up(&flash->lock);
+ mutex_unlock(&flash->lock);
return -EIO;
}
@@ -215,7 +220,7 @@ static int m25p80_erase(struct mtd_info *mtd, struct erase_info *instr)
len -= mtd->erasesize;
}
- up(&flash->lock);
+ mutex_unlock(&flash->lock);
instr->state = MTD_ERASE_DONE;
mtd_erase_callback(instr);
@@ -260,16 +265,19 @@ static int m25p80_read(struct mtd_info *mtd, loff_t from, size_t len,
if (retlen)
*retlen = 0;
- down(&flash->lock);
+ mutex_lock(&flash->lock);
/* Wait till previous write/erase is done. */
if (wait_till_ready(flash)) {
/* REVISIT status return?? */
- up(&flash->lock);
+ mutex_unlock(&flash->lock);
return 1;
}
- /* NOTE: OPCODE_FAST_READ (if available) is faster... */
+ /* FIXME switch to OPCODE_FAST_READ. It's required for higher
+ * clocks; and at this writing, every chip this driver handles
+ * supports that opcode.
+ */
/* Set up the write data buffer. */
flash->command[0] = OPCODE_READ;
@@ -281,7 +289,7 @@ static int m25p80_read(struct mtd_info *mtd, loff_t from, size_t len,
*retlen = m.actual_length - sizeof(flash->command);
- up(&flash->lock);
+ mutex_unlock(&flash->lock);
return 0;
}
@@ -323,7 +331,7 @@ static int m25p80_write(struct mtd_info *mtd, loff_t to, size_t len,
t[1].tx_buf = buf;
spi_message_add_tail(&t[1], &m);
- down(&flash->lock);
+ mutex_lock(&flash->lock);
/* Wait until finished previous write command. */
if (wait_till_ready(flash))
@@ -381,10 +389,10 @@ static int m25p80_write(struct mtd_info *mtd, loff_t to, size_t len,
if (retlen)
*retlen += m.actual_length
- sizeof(flash->command);
- }
- }
+ }
+ }
- up(&flash->lock);
+ mutex_unlock(&flash->lock);
return 0;
}
@@ -398,24 +406,118 @@ static int m25p80_write(struct mtd_info *mtd, loff_t to, size_t len,
struct flash_info {
char *name;
- u8 id;
- u16 jedec_id;
+
+ /* JEDEC id zero means "no ID" (most older chips); otherwise it has
+ * a high byte of zero plus three data bytes: the manufacturer id,
+ * then a two byte device id.
+ */
+ u32 jedec_id;
+
+ /* The size listed here is what works with OPCODE_SE, which isn't
+ * necessarily called a "sector" by the vendor.
+ */
unsigned sector_size;
- unsigned n_sectors;
+ u16 n_sectors;
+
+ u16 flags;
+#define SECT_4K 0x01 /* OPCODE_BE_4K works uniformly */
};
+
+/* NOTE: double check command sets and memory organization when you add
+ * more flash chips. This current list focusses on newer chips, which
+ * have been converging on command sets which including JEDEC ID.
+ */
static struct flash_info __devinitdata m25p_data [] = {
- /* REVISIT: fill in JEDEC ids, for parts that have them */
- { "m25p05", 0x05, 0x2010, 32 * 1024, 2 },
- { "m25p10", 0x10, 0x2011, 32 * 1024, 4 },
- { "m25p20", 0x11, 0x2012, 64 * 1024, 4 },
- { "m25p40", 0x12, 0x2013, 64 * 1024, 8 },
- { "m25p80", 0x13, 0x0000, 64 * 1024, 16 },
- { "m25p16", 0x14, 0x2015, 64 * 1024, 32 },
- { "m25p32", 0x15, 0x2016, 64 * 1024, 64 },
- { "m25p64", 0x16, 0x2017, 64 * 1024, 128 },
+
+ /* Atmel -- some are (confusingly) marketed as "DataFlash" */
+ { "at25fs010", 0x1f6601, 32 * 1024, 4, SECT_4K, },
+ { "at25fs040", 0x1f6604, 64 * 1024, 8, SECT_4K, },
+
+ { "at25df041a", 0x1f4401, 64 * 1024, 8, SECT_4K, },
+
+ { "at26f004", 0x1f0400, 64 * 1024, 8, SECT_4K, },
+ { "at26df081a", 0x1f4501, 64 * 1024, 16, SECT_4K, },
+ { "at26df161a", 0x1f4601, 64 * 1024, 32, SECT_4K, },
+ { "at26df321", 0x1f4701, 64 * 1024, 64, SECT_4K, },
+
+ /* Spansion -- single (large) sector size only, at least
+ * for the chips listed here (without boot sectors).
+ */
+ { "s25sl004a", 0x010212, 64 * 1024, 8, },
+ { "s25sl008a", 0x010213, 64 * 1024, 16, },
+ { "s25sl016a", 0x010214, 64 * 1024, 32, },
+ { "s25sl032a", 0x010215, 64 * 1024, 64, },
+ { "s25sl064a", 0x010216, 64 * 1024, 128, },
+
+ /* SST -- large erase sizes are "overlays", "sectors" are 4K */
+ { "sst25vf040b", 0xbf258d, 64 * 1024, 8, SECT_4K, },
+ { "sst25vf080b", 0xbf258e, 64 * 1024, 16, SECT_4K, },
+ { "sst25vf016b", 0xbf2541, 64 * 1024, 32, SECT_4K, },
+ { "sst25vf032b", 0xbf254a, 64 * 1024, 64, SECT_4K, },
+
+ /* ST Microelectronics -- newer production may have feature updates */
+ { "m25p05", 0x202010, 32 * 1024, 2, },
+ { "m25p10", 0x202011, 32 * 1024, 4, },
+ { "m25p20", 0x202012, 64 * 1024, 4, },
+ { "m25p40", 0x202013, 64 * 1024, 8, },
+ { "m25p80", 0, 64 * 1024, 16, },
+ { "m25p16", 0x202015, 64 * 1024, 32, },
+ { "m25p32", 0x202016, 64 * 1024, 64, },
+ { "m25p64", 0x202017, 64 * 1024, 128, },
+ { "m25p128", 0x202018, 256 * 1024, 64, },
+
+ { "m45pe80", 0x204014, 64 * 1024, 16, },
+ { "m45pe16", 0x204015, 64 * 1024, 32, },
+
+ { "m25pe80", 0x208014, 64 * 1024, 16, },
+ { "m25pe16", 0x208015, 64 * 1024, 32, SECT_4K, },
+
+ /* Winbond -- w25x "blocks" are 64K, "sectors" are 4KiB */
+ { "w25x10", 0xef3011, 64 * 1024, 2, SECT_4K, },
+ { "w25x20", 0xef3012, 64 * 1024, 4, SECT_4K, },
+ { "w25x40", 0xef3013, 64 * 1024, 8, SECT_4K, },
+ { "w25x80", 0xef3014, 64 * 1024, 16, SECT_4K, },
+ { "w25x16", 0xef3015, 64 * 1024, 32, SECT_4K, },
+ { "w25x32", 0xef3016, 64 * 1024, 64, SECT_4K, },
+ { "w25x64", 0xef3017, 64 * 1024, 128, SECT_4K, },
};
+static struct flash_info *__devinit jedec_probe(struct spi_device *spi)
+{
+ int tmp;
+ u8 code = OPCODE_RDID;
+ u8 id[3];
+ u32 jedec;
+ struct flash_info *info;
+
+ /* JEDEC also defines an optional "extended device information"
+ * string for after vendor-specific data, after the three bytes
+ * we use here. Supporting some chips might require using it.
+ */
+ tmp = spi_write_then_read(spi, &code, 1, id, 3);
+ if (tmp < 0) {
+ DEBUG(MTD_DEBUG_LEVEL0, "%s: error %d reading JEDEC ID\n",
+ spi->dev.bus_id, tmp);
+ return NULL;
+ }
+ jedec = id[0];
+ jedec = jedec << 8;
+ jedec |= id[1];
+ jedec = jedec << 8;
+ jedec |= id[2];
+
+ for (tmp = 0, info = m25p_data;
+ tmp < ARRAY_SIZE(m25p_data);
+ tmp++, info++) {
+ if (info->jedec_id == jedec)
+ return info;
+ }
+ dev_err(&spi->dev, "unrecognized JEDEC id %06x\n", jedec);
+ return NULL;
+}
+
+
/*
* board specific setup should have ensured the SPI clock used here
* matches what the READ command supports, at least until this driver
@@ -429,37 +531,51 @@ static int __devinit m25p_probe(struct spi_device *spi)
unsigned i;
/* Platform data helps sort out which chip type we have, as
- * well as how this board partitions it.
+ * well as how this board partitions it. If we don't have
+ * a chip ID, try the JEDEC id commands; they'll work for most
+ * newer chips, even if we don't recognize the particular chip.
*/
data = spi->dev.platform_data;
- if (!data || !data->type) {
- /* FIXME some chips can identify themselves with RES
- * or JEDEC get-id commands. Try them ...
- */
- DEBUG(MTD_DEBUG_LEVEL1, "%s: no chip id\n",
- spi->dev.bus_id);
- return -ENODEV;
- }
+ if (data && data->type) {
+ for (i = 0, info = m25p_data;
+ i < ARRAY_SIZE(m25p_data);
+ i++, info++) {
+ if (strcmp(data->type, info->name) == 0)
+ break;
+ }
- for (i = 0, info = m25p_data; i < ARRAY_SIZE(m25p_data); i++, info++) {
- if (strcmp(data->type, info->name) == 0)
- break;
- }
- if (i == ARRAY_SIZE(m25p_data)) {
- DEBUG(MTD_DEBUG_LEVEL1, "%s: unrecognized id %s\n",
- spi->dev.bus_id, data->type);
+ /* unrecognized chip? */
+ if (i == ARRAY_SIZE(m25p_data)) {
+ DEBUG(MTD_DEBUG_LEVEL0, "%s: unrecognized id %s\n",
+ spi->dev.bus_id, data->type);
+ info = NULL;
+
+ /* recognized; is that chip really what's there? */
+ } else if (info->jedec_id) {
+ struct flash_info *chip = jedec_probe(spi);
+
+ if (!chip || chip != info) {
+ dev_warn(&spi->dev, "found %s, expected %s\n",
+ chip ? chip->name : "UNKNOWN",
+ info->name);
+ info = NULL;
+ }
+ }
+ } else
+ info = jedec_probe(spi);
+
+ if (!info)
return -ENODEV;
- }
flash = kzalloc(sizeof *flash, GFP_KERNEL);
if (!flash)
return -ENOMEM;
flash->spi = spi;
- init_MUTEX(&flash->lock);
+ mutex_init(&flash->lock);
dev_set_drvdata(&spi->dev, flash);
- if (data->name)
+ if (data && data->name)
flash->mtd.name = data->name;
else
flash->mtd.name = spi->dev.bus_id;
@@ -468,17 +584,25 @@ static int __devinit m25p_probe(struct spi_device *spi)
flash->mtd.writesize = 1;
flash->mtd.flags = MTD_CAP_NORFLASH;
flash->mtd.size = info->sector_size * info->n_sectors;
- flash->mtd.erasesize = info->sector_size;
flash->mtd.erase = m25p80_erase;
flash->mtd.read = m25p80_read;
flash->mtd.write = m25p80_write;
+ /* prefer "small sector" erase if possible */
+ if (info->flags & SECT_4K) {
+ flash->erase_opcode = OPCODE_BE_4K;
+ flash->mtd.erasesize = 4096;
+ } else {
+ flash->erase_opcode = OPCODE_SE;
+ flash->mtd.erasesize = info->sector_size;
+ }
+
dev_info(&spi->dev, "%s (%d Kbytes)\n", info->name,
flash->mtd.size / 1024);
DEBUG(MTD_DEBUG_LEVEL2,
- "mtd .name = %s, .size = 0x%.8x (%uM) "
- ".erasesize = 0x%.8x (%uK) .numeraseregions = %d\n",
+ "mtd .name = %s, .size = 0x%.8x (%uMiB) "
+ ".erasesize = 0x%.8x (%uKiB) .numeraseregions = %d\n",
flash->mtd.name,
flash->mtd.size, flash->mtd.size / (1024*1024),
flash->mtd.erasesize, flash->mtd.erasesize / 1024,
@@ -488,7 +612,7 @@ static int __devinit m25p_probe(struct spi_device *spi)
for (i = 0; i < flash->mtd.numeraseregions; i++)
DEBUG(MTD_DEBUG_LEVEL2,
"mtd.eraseregions[%d] = { .offset = 0x%.8x, "
- ".erasesize = 0x%.8x (%uK), "
+ ".erasesize = 0x%.8x (%uKiB), "
".numblocks = %d }\n",
i, flash->mtd.eraseregions[i].offset,
flash->mtd.eraseregions[i].erasesize,
@@ -516,14 +640,14 @@ static int __devinit m25p_probe(struct spi_device *spi)
}
if (nr_parts > 0) {
- for (i = 0; i < data->nr_parts; i++) {
+ for (i = 0; i < nr_parts; i++) {
DEBUG(MTD_DEBUG_LEVEL2, "partitions[%d] = "
"{.name = %s, .offset = 0x%.8x, "
- ".size = 0x%.8x (%uK) }\n",
- i, data->parts[i].name,
- data->parts[i].offset,
- data->parts[i].size,
- data->parts[i].size / 1024);
+ ".size = 0x%.8x (%uKiB) }\n",
+ i, parts[i].name,
+ parts[i].offset,
+ parts[i].size,
+ parts[i].size / 1024);
}
flash->partitioned = 1;
return add_mtd_partitions(&flash->mtd, parts, nr_parts);
@@ -560,6 +684,11 @@ static struct spi_driver m25p80_driver = {
},
.probe = m25p_probe,
.remove = __devexit_p(m25p_remove),
+
+ /* REVISIT: many of these chips have deep power-down modes, which
+ * should clearly be entered on suspend() to minimize power use.
+ * And also when they're otherwise idle...
+ */
};
diff --git a/drivers/mtd/devices/mtd_dataflash.c b/drivers/mtd/devices/mtd_dataflash.c
index a987e91..a5ed6d2 100644
--- a/drivers/mtd/devices/mtd_dataflash.c
+++ b/drivers/mtd/devices/mtd_dataflash.c
@@ -14,6 +14,7 @@
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/device.h>
+#include <linux/mutex.h>
#include <linux/spi/spi.h>
#include <linux/spi/flash.h>
@@ -89,7 +90,7 @@ struct dataflash {
unsigned short page_offset; /* offset in flash address */
unsigned int page_size; /* of bytes per page */
- struct semaphore lock;
+ struct mutex lock;
struct spi_device *spi;
struct mtd_info mtd;
@@ -167,7 +168,7 @@ static int dataflash_erase(struct mtd_info *mtd, struct erase_info *instr)
x.len = 4;
spi_message_add_tail(&x, &msg);
- down(&priv->lock);
+ mutex_lock(&priv->lock);
while (instr->len > 0) {
unsigned int pageaddr;
int status;
@@ -210,7 +211,7 @@ static int dataflash_erase(struct mtd_info *mtd, struct erase_info *instr)
instr->len -= priv->page_size;
}
}
- up(&priv->lock);
+ mutex_unlock(&priv->lock);
/* Inform MTD subsystem that erase is complete */
instr->state = MTD_ERASE_DONE;
@@ -266,7 +267,7 @@ static int dataflash_read(struct mtd_info *mtd, loff_t from, size_t len,
x[1].len = len;
spi_message_add_tail(&x[1], &msg);
- down(&priv->lock);
+ mutex_lock(&priv->lock);
/* Continuous read, max clock = f(car) which may be less than
* the peak rate available. Some chips support commands with
@@ -279,7 +280,7 @@ static int dataflash_read(struct mtd_info *mtd, loff_t from, size_t len,
/* plus 4 "don't care" bytes */
status = spi_sync(priv->spi, &msg);
- up(&priv->lock);
+ mutex_unlock(&priv->lock);
if (status >= 0) {
*retlen = msg.actual_length - 8;
@@ -336,7 +337,7 @@ static int dataflash_write(struct mtd_info *mtd, loff_t to, size_t len,
else
writelen = len;
- down(&priv->lock);
+ mutex_lock(&priv->lock);
while (remaining > 0) {
DEBUG(MTD_DEBUG_LEVEL3, "write @ %i:%i len=%i\n",
pageaddr, offset, writelen);
@@ -441,7 +442,7 @@ static int dataflash_write(struct mtd_info *mtd, loff_t to, size_t len,
else
writelen = remaining;
}
- up(&priv->lock);
+ mutex_unlock(&priv->lock);
return status;
}
@@ -463,7 +464,7 @@ add_dataflash(struct spi_device *spi, char *name,
if (!priv)
return -ENOMEM;
- init_MUTEX(&priv->lock);
+ mutex_init(&priv->lock);
priv->spi = spi;
priv->page_size = pagesize;
priv->page_offset = pageoffset;
diff --git a/drivers/mtd/devices/pmc551.c b/drivers/mtd/devices/pmc551.c
index e8f686f..7060a08 100644
--- a/drivers/mtd/devices/pmc551.c
+++ b/drivers/mtd/devices/pmc551.c
@@ -30,8 +30,8 @@
*
* Notes:
* Due to what I assume is more buggy SROM, the 64M PMC551 I
- * have available claims that all 4 of it's DRAM banks have 64M
- * of ram configured (making a grand total of 256M onboard).
+ * have available claims that all 4 of its DRAM banks have 64MiB
+ * of ram configured (making a grand total of 256MiB onboard).
* This is slightly annoying since the BAR0 size reflects the
* aperture size, not the dram size, and the V370PDC supplies no
* other method for memory size discovery. This problem is
@@ -70,7 +70,7 @@
* made the memory unusable, added a fix to code to touch up
* the DRAM some.
*
- * Bugs/FIXME's:
+ * Bugs/FIXMEs:
* * MUST fix the init function to not spin on a register
* waiting for it to set .. this does not safely handle busted
* devices that never reset the register correctly which will
@@ -562,10 +562,10 @@ static u32 fixup_pmc551(struct pci_dev *dev)
/*
* Some screen fun
*/
- printk(KERN_DEBUG "pmc551: %d%c (0x%x) of %sprefetchable memory at "
+ printk(KERN_DEBUG "pmc551: %d%sB (0x%x) of %sprefetchable memory at "
"0x%llx\n", (size < 1024) ? size : (size < 1048576) ?
size >> 10 : size >> 20,
- (size < 1024) ? 'B' : (size < 1048576) ? 'K' : 'M', size,
+ (size < 1024) ? "" : (size < 1048576) ? "Ki" : "Mi", size,
((dcmd & (0x1 << 3)) == 0) ? "non-" : "",
(unsigned long long)pci_resource_start(dev, 0));
@@ -649,14 +649,10 @@ MODULE_DESCRIPTION(PMC551_VERSION);
* Stuff these outside the ifdef so as to not bust compiled in driver support
*/
static int msize = 0;
-#if defined(CONFIG_MTD_PMC551_APERTURE_SIZE)
-static int asize = CONFIG_MTD_PMC551_APERTURE_SIZE;
-#else
static int asize = 0;
-#endif
module_param(msize, int, 0);
-MODULE_PARM_DESC(msize, "memory size in Megabytes [1 - 1024]");
+MODULE_PARM_DESC(msize, "memory size in MiB [1 - 1024]");
module_param(asize, int, 0);
MODULE_PARM_DESC(asize, "aperture size, must be <= memsize [1-1024]");
@@ -799,8 +795,7 @@ static int __init init_pmc551(void)
mtd->owner = THIS_MODULE;
if (add_mtd_device(mtd)) {
- printk(KERN_NOTICE "pmc551: Failed to register new "
- "device\n");
+ printk(KERN_NOTICE "pmc551: Failed to register new device\n");
pci_iounmap(PCI_Device, priv->start);
kfree(mtd->priv);
kfree(mtd);
@@ -811,13 +806,13 @@ static int __init init_pmc551(void)
pci_dev_get(PCI_Device);
printk(KERN_NOTICE "Registered pmc551 memory device.\n");
- printk(KERN_NOTICE "Mapped %dM of memory from 0x%p to 0x%p\n",
+ printk(KERN_NOTICE "Mapped %dMiB of memory from 0x%p to 0x%p\n",
priv->asize >> 20,
priv->start, priv->start + priv->asize);
- printk(KERN_NOTICE "Total memory is %d%c\n",
+ printk(KERN_NOTICE "Total memory is %d%sB\n",
(length < 1024) ? length :
(length < 1048576) ? length >> 10 : length >> 20,
- (length < 1024) ? 'B' : (length < 1048576) ? 'K' : 'M');
+ (length < 1024) ? "" : (length < 1048576) ? "Ki" : "Mi");
priv->nextpmc551 = pmc551list;
pmc551list = mtd;
found++;
@@ -850,7 +845,7 @@ static void __exit cleanup_pmc551(void)
pmc551list = priv->nextpmc551;
if (priv->start) {
- printk(KERN_DEBUG "pmc551: unmapping %dM starting at "
+ printk(KERN_DEBUG "pmc551: unmapping %dMiB starting at "
"0x%p\n", priv->asize >> 20, priv->start);
pci_iounmap(priv->dev, priv->start);
}
diff --git a/drivers/mtd/maps/nettel.c b/drivers/mtd/maps/nettel.c
index 7b96cd0..0c9b305 100644
--- a/drivers/mtd/maps/nettel.c
+++ b/drivers/mtd/maps/nettel.c
@@ -158,68 +158,11 @@ static struct notifier_block nettel_notifier_block = {
nettel_reboot_notifier, NULL, 0
};
-/*
- * Erase the configuration file system.
- * Used to support the software reset button.
- */
-static void nettel_erasecallback(struct erase_info *done)
-{
- wait_queue_head_t *wait_q = (wait_queue_head_t *)done->priv;
- wake_up(wait_q);
-}
-
-static struct erase_info nettel_erase;
-
-int nettel_eraseconfig(void)
-{
- struct mtd_info *mtd;
- DECLARE_WAITQUEUE(wait, current);
- wait_queue_head_t wait_q;
- int ret;
-
- init_waitqueue_head(&wait_q);
- mtd = get_mtd_device(NULL, 2);
- if (!IS_ERR(mtd)) {
- nettel_erase.mtd = mtd;
- nettel_erase.callback = nettel_erasecallback;
- nettel_erase.callback = NULL;
- nettel_erase.addr = 0;
- nettel_erase.len = mtd->size;
- nettel_erase.priv = (u_long) &wait_q;
- nettel_erase.priv = 0;
-
- set_current_state(TASK_INTERRUPTIBLE);
- add_wait_queue(&wait_q, &wait);
-
- ret = mtd->erase(mtd, &nettel_erase);
- if (ret) {
- set_current_state(TASK_RUNNING);
- remove_wait_queue(&wait_q, &wait);
- put_mtd_device(mtd);
- return(ret);
- }
-
- schedule(); /* Wait for erase to finish. */
- remove_wait_queue(&wait_q, &wait);
-
- put_mtd_device(mtd);
- }
-
- return(0);
-}
-
-#else
-
-int nettel_eraseconfig(void)
-{
- return(0);
-}
-
#endif
/****************************************************************************/
-int __init nettel_init(void)
+static int __init nettel_init(void)
{
volatile unsigned long *amdpar;
unsigned long amdaddr, maxsize;
@@ -421,10 +364,6 @@ int __init nettel_init(void)
intel_mtd->owner = THIS_MODULE;
-#ifndef CONFIG_BLK_DEV_INITRD
- ROOT_DEV = MKDEV(MTD_BLOCK_MAJOR, 1);
-#endif
-
num_intel_partitions = sizeof(nettel_intel_partitions) /
sizeof(nettel_intel_partitions[0]);
@@ -477,7 +416,7 @@ out_unmap2:
/****************************************************************************/
-void __exit nettel_cleanup(void)
+static void __exit nettel_cleanup(void)
{
#ifdef CONFIG_MTD_CFI_INTELEXT
unregister_reboot_notifier(&nettel_notifier_block);
diff --git a/drivers/mtd/maps/pmcmsp-ramroot.c b/drivers/mtd/maps/pmcmsp-ramroot.c
index 18049bc..30de5c0 100644
--- a/drivers/mtd/maps/pmcmsp-ramroot.c
+++ b/drivers/mtd/maps/pmcmsp-ramroot.c
@@ -79,7 +79,6 @@ static int __init init_rrmap(void)
rr_mtd->owner = THIS_MODULE;
add_mtd_device(rr_mtd);
- ROOT_DEV = MKDEV(MTD_BLOCK_MAJOR, rr_mtd->index);
return 0;
}
diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c
index ef89780..74d9d30 100644
--- a/drivers/mtd/mtd_blkdevs.c
+++ b/drivers/mtd/mtd_blkdevs.c
@@ -24,10 +24,9 @@
#include <linux/kthread.h>
#include <asm/uaccess.h>
-static LIST_HEAD(blktrans_majors);
+#include "mtdcore.h"
-extern struct mutex mtd_table_mutex;
-extern struct mtd_info *mtd_table[];
+static LIST_HEAD(blktrans_majors);
struct mtd_blkcore_priv {
struct task_struct *thread;
@@ -202,7 +201,7 @@ static int blktrans_ioctl(struct inode *inode, struct file *file,
}
}
-struct block_device_operations mtd_blktrans_ops = {
+static struct block_device_operations mtd_blktrans_ops = {
.owner = THIS_MODULE,
.open = blktrans_open,
.release = blktrans_release,
diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c
index d091b24..22ed96c 100644
--- a/drivers/mtd/mtdchar.c
+++ b/drivers/mtd/mtdchar.c
@@ -136,7 +136,8 @@ static int mtd_close(struct inode *inode, struct file *file)
DEBUG(MTD_DEBUG_LEVEL0, "MTD_close\n");
- if (mtd->sync)
+ /* Only sync if opened RW */
+ if ((file->f_mode & 2) && mtd->sync)
mtd->sync(mtd);
put_mtd_device(mtd);
diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c
index c153b64..6c2645e 100644
--- a/drivers/mtd/mtdcore.c
+++ b/drivers/mtd/mtdcore.c
@@ -22,6 +22,8 @@
#include <linux/mtd/mtd.h>
+#include "mtdcore.h"
+
/* These are exported solely for the purpose of mtd_blkdevs.c. You
should not use them for _anything_ else */
DEFINE_MUTEX(mtd_table_mutex);
diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
index f1d60b6..df25cab 100644
--- a/drivers/mtd/nand/Kconfig
+++ b/drivers/mtd/nand/Kconfig
@@ -134,10 +134,10 @@ config MTD_NAND_S3C2410_HWECC
config MTD_NAND_NDFC
tristate "NDFC NanD Flash Controller"
- depends on 44x
+ depends on 4xx
select MTD_NAND_ECC_SMC
help
- NDFC Nand Flash Controllers are integrated in EP44x SoCs
+ NDFC Nand Flash Controllers are integrated in IBM/AMCC's 4xx SoCs
config MTD_NAND_S3C2410_CLKSTOP
bool "S3C2410 NAND IDLE clock stop"
@@ -237,7 +237,7 @@ config MTD_NAND_CAFE
select REED_SOLOMON
select REED_SOLOMON_DEC16
help
- Use NAND flash attached to the CAFÉ chip designed for the $100
+ Use NAND flash attached to the CAFÉ chip designed for the OLPC
laptop.
config MTD_NAND_CS553X
diff --git a/drivers/mtd/nand/cafe_nand.c b/drivers/mtd/nand/cafe_nand.c
index cff969d..cca69b3 100644
--- a/drivers/mtd/nand/cafe_nand.c
+++ b/drivers/mtd/nand/cafe_nand.c
@@ -821,14 +821,53 @@ static struct pci_device_id cafe_nand_tbl[] = {
MODULE_DEVICE_TABLE(pci, cafe_nand_tbl);
+static int cafe_nand_resume(struct pci_dev *pdev)
+{
+ uint32_t timing1, timing2, timing3;
+ uint32_t ctrl;
+ struct mtd_info *mtd = pci_get_drvdata(pdev);
+ struct cafe_priv *cafe = mtd->priv;
+
+ timing1 = timing2 = timing3 = 0xffffffff;
+ /* Start off by resetting the NAND controller completely */
+ cafe_writel(cafe, 1, NAND_RESET);
+ cafe_writel(cafe, 0, NAND_RESET);
+ cafe_writel(cafe, timing1, NAND_TIMING1);
+ cafe_writel(cafe, timing2, NAND_TIMING2);
+ cafe_writel(cafe, timing3, NAND_TIMING3);
+ cafe_writel(cafe, 0xffffffff, NAND_IRQ_MASK);
+
+ /* Disable master reset, enable NAND clock */
+ ctrl = cafe_readl(cafe, GLOBAL_CTRL);
+ ctrl &= 0xffffeff0;
+ ctrl |= 0x00007000;
+ cafe_writel(cafe, ctrl | 0x05, GLOBAL_CTRL);
+ cafe_writel(cafe, ctrl | 0x0a, GLOBAL_CTRL);
+ cafe_writel(cafe, 0, NAND_DMA_CTRL);
+ cafe_writel(cafe, 0x7006, GLOBAL_CTRL);
+ cafe_writel(cafe, 0x700a, GLOBAL_CTRL);
+
+ /* Set up DMA address */
+ cafe_writel(cafe, cafe->dmaaddr & 0xffffffff, NAND_DMA_ADDR0);
+ if (sizeof(cafe->dmaaddr) > 4)
+ /* Shift in two parts to shut the compiler up */
+ cafe_writel(cafe, (cafe->dmaaddr >> 16) >> 16, NAND_DMA_ADDR1);
+ else
+ cafe_writel(cafe, 0, NAND_DMA_ADDR1);
+
+ /* Enable NAND IRQ in global IRQ mask register */
+ cafe_writel(cafe, 0x80000007, GLOBAL_IRQ_MASK);
+ return 0;
+}
+
static struct pci_driver cafe_nand_pci_driver = {
.name = "CAFÉ NAND",
.id_table = cafe_nand_tbl,
.probe = cafe_nand_probe,
.remove = __devexit_p(cafe_nand_remove),
+ .resume = cafe_nand_resume,
#ifdef CONFIG_PMx
.suspend = cafe_nand_suspend,
- .resume = cafe_nand_resume,
#endif
};
diff --git a/drivers/mtd/nand/ndfc.c b/drivers/mtd/nand/ndfc.c
index fd7a8d5..1c0e89f 100644
--- a/drivers/mtd/nand/ndfc.c
+++ b/drivers/mtd/nand/ndfc.c
@@ -24,7 +24,11 @@
#include <linux/platform_device.h>
#include <asm/io.h>
+#ifdef CONFIG_40x
+#include <asm/ibm405.h>
+#else
#include <asm/ibm44x.h>
+#endif
struct ndfc_nand_mtd {
struct mtd_info mtd;
@@ -230,7 +234,11 @@ static int ndfc_nand_probe(struct platform_device *pdev)
struct ndfc_controller *ndfc = &ndfc_ctrl;
unsigned long long phys = settings->ndfc_erpn | res->start;
+#ifndef CONFIG_PHYS_64BIT
+ ndfc->ndfcbase = ioremap((phys_addr_t)phys, res->end - res->start + 1);
+#else
ndfc->ndfcbase = ioremap64(phys, res->end - res->start + 1);
+#endif
if (!ndfc->ndfcbase) {
printk(KERN_ERR "NDFC: ioremap failed\n");
return -EIO;
diff --git a/drivers/mtd/onenand/Kconfig b/drivers/mtd/onenand/Kconfig
index c257d39..cb41cbc 100644
--- a/drivers/mtd/onenand/Kconfig
+++ b/drivers/mtd/onenand/Kconfig
@@ -40,4 +40,27 @@ config MTD_ONENAND_OTP
OTP block is fully-guaranteed to be a valid block.
+config MTD_ONENAND_2X_PROGRAM
+ bool "OneNAND 2X program support"
+ help
+ The 2X Program is an extension of Program Operation.
+ Since the device is equipped with two DataRAMs, and two-plane NAND
+ Flash memory array, these two component enables simultaneous program
+ of 4KiB. Plane1 has only even blocks such as block0, block2, block4
+ while Plane2 has only odd blocks such as block1, block3, block5.
+ So MTD regards it as 4KiB page size and 256KiB block size
+
+ Now the following chips support it. (KFXXX16Q2M)
+ Demux: KFG2G16Q2M, KFH4G16Q2M, KFW8G16Q2M,
+ Mux: KFM2G16Q2M, KFN4G16Q2M,
+
+ And more recent chips
+
+config MTD_ONENAND_SIM
+ tristate "OneNAND simulator support"
+ depends on MTD_PARTITIONS
+ help
+ The simulator may simulate various OneNAND flash chips for the
+ OneNAND MTD layer.
+
endif # MTD_ONENAND
diff --git a/drivers/mtd/onenand/Makefile b/drivers/mtd/onenand/Makefile
index 269cfe4..4d2eacf 100644
--- a/drivers/mtd/onenand/Makefile
+++ b/drivers/mtd/onenand/Makefile
@@ -8,4 +8,7 @@ obj-$(CONFIG_MTD_ONENAND) += onenand.o
# Board specific.
obj-$(CONFIG_MTD_ONENAND_GENERIC) += generic.o
+# Simulator
+obj-$(CONFIG_MTD_ONENAND_SIM) += onenand_sim.o
+
onenand-objs = onenand_base.o onenand_bbt.o
diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c
index 0537fac..7d194cf 100644
--- a/drivers/mtd/onenand/onenand_base.c
+++ b/drivers/mtd/onenand/onenand_base.c
@@ -206,6 +206,15 @@ static int onenand_command(struct mtd_info *mtd, int cmd, loff_t addr, size_t le
default:
block = (int) (addr >> this->erase_shift);
page = (int) (addr >> this->page_shift);
+
+ if (ONENAND_IS_2PLANE(this)) {
+ /* Make the even block number */
+ block &= ~1;
+ /* Is it the odd plane? */
+ if (addr & this->writesize)
+ block++;
+ page >>= 1;
+ }
page &= this->page_mask;
break;
}
@@ -216,8 +225,12 @@ static int onenand_command(struct mtd_info *mtd, int cmd, loff_t addr, size_t le
value = onenand_bufferram_address(this, block);
this->write_word(value, this->base + ONENAND_REG_START_ADDRESS2);
- /* Switch to the next data buffer */
- ONENAND_SET_NEXT_BUFFERRAM(this);
+ if (ONENAND_IS_2PLANE(this))
+ /* It is always BufferRAM0 */
+ ONENAND_SET_BUFFERRAM0(this);
+ else
+ /* Switch to the next data buffer */
+ ONENAND_SET_NEXT_BUFFERRAM(this);
return 0;
}
@@ -247,6 +260,8 @@ static int onenand_command(struct mtd_info *mtd, int cmd, loff_t addr, size_t le
break;
default:
+ if (ONENAND_IS_2PLANE(this) && cmd == ONENAND_CMD_PROG)
+ cmd = ONENAND_CMD_2X_PROG;
dataram = ONENAND_CURRENT_BUFFERRAM(this);
break;
}
@@ -445,8 +460,9 @@ static inline int onenand_bufferram_offset(struct mtd_info *mtd, int area)
struct onenand_chip *this = mtd->priv;
if (ONENAND_CURRENT_BUFFERRAM(this)) {
+ /* Note: the 'this->writesize' is a real page size */
if (area == ONENAND_DATARAM)
- return mtd->writesize;
+ return this->writesize;
if (area == ONENAND_SPARERAM)
return mtd->oobsize;
}
@@ -572,6 +588,30 @@ static int onenand_write_bufferram(struct mtd_info *mtd, int area,
}
/**
+ * onenand_get_2x_blockpage - [GENERIC] Get blockpage at 2x program mode
+ * @param mtd MTD data structure
+ * @param addr address to check
+ * @return blockpage address
+ *
+ * Get blockpage address at 2x program mode
+ */
+static int onenand_get_2x_blockpage(struct mtd_info *mtd, loff_t addr)
+{
+ struct onenand_chip *this = mtd->priv;
+ int blockpage, block, page;
+
+ /* Calculate the even block number */
+ block = (int) (addr >> this->erase_shift) & ~1;
+ /* Is it the odd plane? */
+ if (addr & this->writesize)
+ block++;
+ page = (int) (addr >> (this->page_shift + 1)) & this->page_mask;
+ blockpage = (block << 7) | page;
+
+ return blockpage;
+}
+
+/**
* onenand_check_bufferram - [GENERIC] Check BufferRAM information
* @param mtd MTD data structure
* @param addr address to check
@@ -585,7 +625,10 @@ static int onenand_check_bufferram(struct mtd_info *mtd, loff_t addr)
int blockpage, found = 0;
unsigned int i;
- blockpage = (int) (addr >> this->page_shift);
+ if (ONENAND_IS_2PLANE(this))
+ blockpage = onenand_get_2x_blockpage(mtd, addr);
+ else
+ blockpage = (int) (addr >> this->page_shift);
/* Is there valid data? */
i = ONENAND_CURRENT_BUFFERRAM(this);
@@ -625,7 +668,10 @@ static void onenand_update_bufferram(struct mtd_info *mtd, loff_t addr,
int blockpage;
unsigned int i;
- blockpage = (int) (addr >> this->page_shift);
+ if (ONENAND_IS_2PLANE(this))
+ blockpage = onenand_get_2x_blockpage(mtd, addr);
+ else
+ blockpage = (int) (addr >> this->page_shift);
/* Invalidate another BufferRAM */
i = ONENAND_NEXT_BUFFERRAM(this);
@@ -734,6 +780,7 @@ static int onenand_read(struct mtd_info *mtd, loff_t from, size_t len,
int read = 0, column;
int thislen;
int ret = 0, boundary = 0;
+ int writesize = this->writesize;
DEBUG(MTD_DEBUG_LEVEL3, "onenand_read: from = 0x%08x, len = %i\n", (unsigned int) from, (int) len);
@@ -754,22 +801,22 @@ static int onenand_read(struct mtd_info *mtd, loff_t from, size_t len,
/* Do first load to bufferRAM */
if (read < len) {
if (!onenand_check_bufferram(mtd, from)) {
- this->command(mtd, ONENAND_CMD_READ, from, mtd->writesize);
+ this->command(mtd, ONENAND_CMD_READ, from, writesize);
ret = this->wait(mtd, FL_READING);
onenand_update_bufferram(mtd, from, !ret);
}
}
- thislen = min_t(int, mtd->writesize, len - read);
- column = from & (mtd->writesize - 1);
- if (column + thislen > mtd->writesize)
- thislen = mtd->writesize - column;
+ thislen = min_t(int, writesize, len - read);
+ column = from & (writesize - 1);
+ if (column + thislen > writesize)
+ thislen = writesize - column;
while (!ret) {
/* If there is more to load then start next load */
from += thislen;
if (read + thislen < len) {
- this->command(mtd, ONENAND_CMD_READ, from, mtd->writesize);
+ this->command(mtd, ONENAND_CMD_READ, from, writesize);
/*
* Chip boundary handling in DDP
* Now we issued chip 1 read and pointed chip 1
@@ -794,7 +841,7 @@ static int onenand_read(struct mtd_info *mtd, loff_t from, size_t len,
this->write_word(ONENAND_DDP_CHIP1, this->base + ONENAND_REG_START_ADDRESS2);
ONENAND_SET_NEXT_BUFFERRAM(this);
buf += thislen;
- thislen = min_t(int, mtd->writesize, len - read);
+ thislen = min_t(int, writesize, len - read);
column = 0;
cond_resched();
/* Now wait for load */
@@ -1079,7 +1126,7 @@ int onenand_bbt_read_oob(struct mtd_info *mtd, loff_t from,
/* Read more? */
if (read < len) {
/* Update Page size */
- from += mtd->writesize;
+ from += this->writesize;
column = 0;
}
}
@@ -1135,12 +1182,12 @@ static int onenand_verify(struct mtd_info *mtd, const u_char *buf, loff_t addr,
int thislen, column;
while (len != 0) {
- thislen = min_t(int, mtd->writesize, len);
- column = addr & (mtd->writesize - 1);
- if (column + thislen > mtd->writesize)
- thislen = mtd->writesize - column;
+ thislen = min_t(int, this->writesize, len);
+ column = addr & (this->writesize - 1);
+ if (column + thislen > this->writesize)
+ thislen = this->writesize - column;
- this->command(mtd, ONENAND_CMD_READ, addr, mtd->writesize);
+ this->command(mtd, ONENAND_CMD_READ, addr, this->writesize);
onenand_update_bufferram(mtd, addr, 0);
@@ -1236,6 +1283,10 @@ static int onenand_write(struct mtd_info *mtd, loff_t to, size_t len,
/* In partial page write we don't update bufferram */
onenand_update_bufferram(mtd, to, !ret && !subpage);
+ if (ONENAND_IS_2PLANE(this)) {
+ ONENAND_SET_BUFFERRAM1(this);
+ onenand_update_bufferram(mtd, to + this->writesize, !ret && !subpage);
+ }
if (ret) {
printk(KERN_ERR "onenand_write: write filaed %d\n", ret);
@@ -1384,6 +1435,10 @@ static int onenand_do_write_oob(struct mtd_info *mtd, loff_t to, size_t len,
this->command(mtd, ONENAND_CMD_PROGOOB, to, mtd->oobsize);
onenand_update_bufferram(mtd, to, 0);
+ if (ONENAND_IS_2PLANE(this)) {
+ ONENAND_SET_BUFFERRAM1(this);
+ onenand_update_bufferram(mtd, to + this->writesize, 0);
+ }
ret = this->wait(mtd, FL_WRITING);
if (ret) {
@@ -2107,6 +2162,7 @@ static int onenand_lock_user_prot_reg(struct mtd_info *mtd, loff_t from,
*
* Check and set OneNAND features
* - lock scheme
+ * - two plane
*/
static void onenand_check_features(struct mtd_info *mtd)
{
@@ -2118,19 +2174,35 @@ static void onenand_check_features(struct mtd_info *mtd)
process = this->version_id >> ONENAND_VERSION_PROCESS_SHIFT;
/* Lock scheme */
- if (density >= ONENAND_DEVICE_DENSITY_1Gb) {
+ switch (density) {
+ case ONENAND_DEVICE_DENSITY_4Gb:
+ this->options |= ONENAND_HAS_2PLANE;
+
+ case ONENAND_DEVICE_DENSITY_2Gb:
+ /* 2Gb DDP don't have 2 plane */
+ if (!ONENAND_IS_DDP(this))
+ this->options |= ONENAND_HAS_2PLANE;
+ this->options |= ONENAND_HAS_UNLOCK_ALL;
+
+ case ONENAND_DEVICE_DENSITY_1Gb:
/* A-Die has all block unlock */
- if (process) {
- printk(KERN_DEBUG "Chip support all block unlock\n");
+ if (process)
this->options |= ONENAND_HAS_UNLOCK_ALL;
- }
- } else {
- /* Some OneNAND has continues lock scheme */
- if (!process) {
- printk(KERN_DEBUG "Lock scheme is Continues Lock\n");
+ break;
+
+ default:
+ /* Some OneNAND has continuous lock scheme */
+ if (!process)
this->options |= ONENAND_HAS_CONT_LOCK;
- }
+ break;
}
+
+ if (this->options & ONENAND_HAS_CONT_LOCK)
+ printk(KERN_DEBUG "Lock scheme is Continuous Lock\n");
+ if (this->options & ONENAND_HAS_UNLOCK_ALL)
+ printk(KERN_DEBUG "Chip support all block unlock\n");
+ if (this->options & ONENAND_HAS_2PLANE)
+ printk(KERN_DEBUG "Chip has 2 plane\n");
}
/**
@@ -2257,6 +2329,8 @@ static int onenand_probe(struct mtd_info *mtd)
this->erase_shift = ffs(mtd->erasesize) - 1;
this->page_shift = ffs(mtd->writesize) - 1;
this->page_mask = (1 << (this->erase_shift - this->page_shift)) - 1;
+ /* It's real page size */
+ this->writesize = mtd->writesize;
/* REVIST: Multichip handling */
@@ -2265,6 +2339,17 @@ static int onenand_probe(struct mtd_info *mtd)
/* Check OneNAND features */
onenand_check_features(mtd);
+ /*
+ * We emulate the 4KiB page and 256KiB erase block size
+ * But oobsize is still 64 bytes.
+ * It is only valid if you turn on 2X program support,
+ * Otherwise it will be ignored by compiler.
+ */
+ if (ONENAND_IS_2PLANE(this)) {
+ mtd->writesize <<= 1;
+ mtd->erasesize <<= 1;
+ }
+
return 0;
}
diff --git a/drivers/net/forcedeth.c b/drivers/net/forcedeth.c
index 1938d6d..cc01dbd 100644
--- a/drivers/net/forcedeth.c
+++ b/drivers/net/forcedeth.c
@@ -3556,10 +3556,12 @@ static int nv_request_irq(struct net_device *dev, int intr_test)
}
if (ret != 0 && np->msi_flags & NV_MSI_CAPABLE) {
if ((ret = pci_enable_msi(np->pci_dev)) == 0) {
+ pci_intx(np->pci_dev, 0);
np->msi_flags |= NV_MSI_ENABLED;
if (request_irq(np->pci_dev->irq, handler, IRQF_SHARED, dev->name, dev) != 0) {
printk(KERN_INFO "forcedeth: request_irq failed %d\n", ret);
pci_disable_msi(np->pci_dev);
+ pci_intx(np->pci_dev, 1);
np->msi_flags &= ~NV_MSI_ENABLED;
goto out_err;
}
@@ -3601,6 +3603,7 @@ static void nv_free_irq(struct net_device *dev)
free_irq(np->pci_dev->irq, dev);
if (np->msi_flags & NV_MSI_ENABLED) {
pci_disable_msi(np->pci_dev);
+ pci_intx(np->pci_dev, 1);
np->msi_flags &= ~NV_MSI_ENABLED;
}
}
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 7dcaa09..eb69d4d 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -1390,6 +1390,17 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260a, quirk_intel_pcie_pm);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260b, quirk_intel_pcie_pm);
/*
+ * According to Tom Sylla, the Geode does not support PCI power management
+ * transition, so we shouldn't need the D3hot delay.
+ */
+static void __init quirk_geode_pci_pm(struct pci_dev *dev)
+{
+ pci_pm_d3_delay = 0;
+}
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5530_LEGACY, quirk_geode_pci_pm);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_CS5536_ISA, quirk_geode_pci_pm);
+
+/*
* Toshiba TC86C001 IDE controller reports the standard 8-byte BAR0 size
* but the PIO transfers won't work if BAR0 falls at the odd 8 bytes.
* Re-allocate the region if needed...
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index 5216c11..3e3df7e 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -594,7 +594,7 @@ config FB_TGA
config FB_VESA
bool "VESA VGA graphics support"
- depends on (FB = y) && X86
+ depends on (FB = y) && X86 && !VGA_NOPROBE
select FB_CFB_FILLRECT
select FB_CFB_COPYAREA
select FB_CFB_IMAGEBLIT
@@ -1028,7 +1028,7 @@ config FB_CARILLO_RANCH
config FB_INTEL
tristate "Intel 830M/845G/852GM/855GM/865G/915G/945G support (EXPERIMENTAL)"
- depends on FB && EXPERIMENTAL && PCI && X86
+ depends on FB && EXPERIMENTAL && PCI && X86 && !VGA_NOPROBE
select AGP
select AGP_INTEL
select FB_MODE_HELPERS
@@ -1383,7 +1383,7 @@ config FB_SAVAGE_ACCEL
config FB_SIS
tristate "SiS/XGI display support"
- depends on FB && PCI
+ depends on FB && PCI && !VGA_NOPROBE
select FB_CFB_FILLRECT
select FB_CFB_COPYAREA
select FB_CFB_IMAGEBLIT
@@ -1822,6 +1822,15 @@ config FB_PS3_DEFAULT_SIZE_M
The default value can be overridden on the kernel command line
using the "ps3fb" option (e.g. "ps3fb=9M");
+config FB_OLPC_DCON
+ tristate "One Laptop Per Child Display CONtroller support"
+ depends on OLPC
+ select I2C
+ ---help---
+ Add support for the OLPC DCON controller. This controller is only
+ available on OLPC platforms. Unless you have one of these
+ platforms, you will want to say 'N'.
+
config FB_XILINX
tristate "Xilinx frame buffer support"
depends on FB && XILINX_VIRTEX
diff --git a/drivers/video/Makefile b/drivers/video/Makefile
index 06eec7b..fc535fb 100644
--- a/drivers/video/Makefile
+++ b/drivers/video/Makefile
@@ -111,6 +111,7 @@ obj-$(CONFIG_FB_PNX4008_DUM_RGB) += pnx4008/
obj-$(CONFIG_FB_IBM_GXT4500) += gxt4500.o
obj-$(CONFIG_FB_PS3) += ps3fb.o
obj-$(CONFIG_FB_SM501) += sm501fb.o
+obj-$(CONFIG_FB_OLPC_DCON) += olpc_dcon.o
obj-$(CONFIG_FB_XILINX) += xilinxfb.o
obj-$(CONFIG_FB_OMAP) += omap/
diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c
index 0740272..4ac6a95 100644
--- a/drivers/video/fbmem.c
+++ b/drivers/video/fbmem.c
@@ -820,6 +820,53 @@ static void try_to_load(int fb)
#endif /* CONFIG_KMOD */
int
+fb_powerup(struct fb_info *info)
+{
+ int ret = 0;
+
+ if (!info || info->state == FBINFO_STATE_RUNNING)
+ return 0;
+
+ if (info->fbops->fb_powerup)
+ ret = info->fbops->fb_powerup(info);
+
+ if (!ret) {
+ acquire_console_sem();
+ fb_set_suspend(info, 0);
+ release_console_sem();
+ }
+
+ return ret;
+}
+
+int
+fb_powerdown(struct fb_info *info)
+{
+ int ret = 0;
+
+ if (!info || info->state == FBINFO_STATE_SUSPENDED)
+ return 0;
+
+ /* Tell everybody that the fbdev is going down */
+ acquire_console_sem();
+ fb_set_suspend(info, 1);
+ release_console_sem();
+
+ if (info->fbops->fb_powerdown)
+ ret = info->fbops->fb_powerdown(info);
+
+ /* If the power down failed, then un-notify */
+
+ if (ret) {
+ acquire_console_sem();
+ fb_set_suspend(info, 0);
+ release_console_sem();
+ }
+
+ return ret;
+}
+
+int
fb_pan_display(struct fb_info *info, struct fb_var_screeninfo *var)
{
struct fb_fix_screeninfo *fix = &info->fix;
diff --git a/drivers/video/geode/Makefile b/drivers/video/geode/Makefile
index 957304b..5c98da1 100644
--- a/drivers/video/geode/Makefile
+++ b/drivers/video/geode/Makefile
@@ -5,5 +5,5 @@ obj-$(CONFIG_FB_GEODE_GX) += gxfb.o
obj-$(CONFIG_FB_GEODE_LX) += lxfb.o
gx1fb-objs := gx1fb_core.o display_gx1.o video_cs5530.o
-gxfb-objs := gxfb_core.o display_gx.o video_gx.o
+gxfb-objs := gxfb_core.o display_gx.o video_gx.o suspend_gx.o
lxfb-objs := lxfb_core.o lxfb_ops.o
diff --git a/drivers/video/geode/display_gx.c b/drivers/video/geode/display_gx.c
index 0f16e4b..a432b99 100644
--- a/drivers/video/geode/display_gx.c
+++ b/drivers/video/geode/display_gx.c
@@ -11,26 +11,44 @@
* Free Software Foundation; either version 2 of the License, or * (at your
* option) any later version.
*/
+
+#include <linux/kernel.h>
#include <linux/spinlock.h>
#include <linux/fb.h>
#include <linux/delay.h>
#include <asm/io.h>
#include <asm/div64.h>
#include <asm/delay.h>
+#include <asm/olpc.h>
#include "geodefb.h"
#include "display_gx.h"
-#ifdef CONFIG_FB_GEODE_GX_SET_FBSIZE
-unsigned int gx_frame_buffer_size(void)
+static inline void rmwl(u32 val, u32 *reg)
{
- return CONFIG_FB_GEODE_GX_FBSIZE;
+ u32 in = readl(reg);
+ if (in != val)
+ writel(val, reg);
}
-#else
+
unsigned int gx_frame_buffer_size(void)
{
unsigned int val;
+#ifdef CONFIG_OLPC
+ if (machine_is_olpc() && !olpc_has_vsa()) {
+ u32 hi,lo;
+ rdmsr(GLIU0_P2D_RO0, lo, hi);
+
+ /* Top page number */
+ val = ((hi & 0xff) << 12) | ((lo & 0xfff00000) >> 20);
+
+ val -= (lo & 0x000fffff); /* Subtract bottom page number */
+ val += 1; /* Adjust page count */
+ return (val << 12);
+ }
+#endif
+
/* FB size is reported by a virtual register */
/* Virtual register class = 0x02 */
/* VG_MEM_SIZE(512Kb units) = 0x00 */
@@ -41,7 +59,6 @@ unsigned int gx_frame_buffer_size(void)
val = (unsigned int)(inw(0xAC1E)) & 0xFFl;
return (val << 19);
}
-#endif
int gx_line_delta(int xres, int bpp)
{
@@ -63,23 +80,23 @@ static void gx_set_mode(struct fb_info *info)
gcfg = readl(par->dc_regs + DC_GENERAL_CFG);
dcfg = readl(par->dc_regs + DC_DISPLAY_CFG);
- /* Disable the timing generator. */
- dcfg &= ~(DC_DCFG_TGEN);
- writel(dcfg, par->dc_regs + DC_DISPLAY_CFG);
+ /* Programming the clock is costly and ugly, so avoid if if we can */
- /* Wait for pending memory requests before disabling the FIFO load. */
- udelay(100);
+ if (par->curdclk != info->var.pixclock) {
+ /* Disable the timing generator. */
+ dcfg &= ~(DC_DCFG_TGEN);
+ writel(dcfg, par->dc_regs + DC_DISPLAY_CFG);
- /* Disable FIFO load and compression. */
- gcfg &= ~(DC_GCFG_DFLE | DC_GCFG_CMPE | DC_GCFG_DECE);
- writel(gcfg, par->dc_regs + DC_GENERAL_CFG);
+ /* Wait for pending memory requests before disabling the FIFO load. */
+ udelay(100);
- /* Setup DCLK and its divisor. */
- par->vid_ops->set_dclk(info);
+ /* Disable FIFO load and compression. */
+ gcfg &= ~(DC_GCFG_DFLE | DC_GCFG_CMPE | DC_GCFG_DECE);
+ writel(gcfg, par->dc_regs + DC_GENERAL_CFG);
- /*
- * Setup new mode.
- */
+ /* Setup DCLK and its divisor. */
+ par->vid_ops->set_dclk(info);
+ }
/* Clear all unused feature bits. */
gcfg &= DC_GCFG_YUVM | DC_GCFG_VDSE;
@@ -90,12 +107,13 @@ static void gx_set_mode(struct fb_info *info)
gcfg |= (6 << DC_GCFG_DFHPEL_POS) | (5 << DC_GCFG_DFHPSL_POS) | DC_GCFG_DFLE;
/* Framebuffer start offset. */
- writel(0, par->dc_regs + DC_FB_ST_OFFSET);
+ rmwl(0, par->dc_regs + DC_FB_ST_OFFSET);
/* Line delta and line buffer length. */
- writel(info->fix.line_length >> 3, par->dc_regs + DC_GFX_PITCH);
- writel(((info->var.xres * info->var.bits_per_pixel/8) >> 3) + 2,
- par->dc_regs + DC_LINE_SIZE);
+ rmwl(info->fix.line_length >> 3, par->dc_regs + DC_GFX_PITCH);
+
+ rmwl(((info->var.xres * info->var.bits_per_pixel/8) >> 3) + 2,
+ par->dc_regs + DC_LINE_SIZE);
/* Enable graphics and video data and unmask address lines. */
@@ -134,17 +152,16 @@ static void gx_set_mode(struct fb_info *info)
vblankend = vsyncend + info->var.upper_margin;
vtotal = vblankend;
- writel((hactive - 1) | ((htotal - 1) << 16), par->dc_regs + DC_H_ACTIVE_TIMING);
- writel((hblankstart - 1) | ((hblankend - 1) << 16), par->dc_regs + DC_H_BLANK_TIMING);
- writel((hsyncstart - 1) | ((hsyncend - 1) << 16), par->dc_regs + DC_H_SYNC_TIMING);
-
- writel((vactive - 1) | ((vtotal - 1) << 16), par->dc_regs + DC_V_ACTIVE_TIMING);
- writel((vblankstart - 1) | ((vblankend - 1) << 16), par->dc_regs + DC_V_BLANK_TIMING);
- writel((vsyncstart - 1) | ((vsyncend - 1) << 16), par->dc_regs + DC_V_SYNC_TIMING);
+ rmwl((hactive - 1) | ((htotal - 1) << 16), par->dc_regs + DC_H_ACTIVE_TIMING);
+ rmwl((hblankstart - 1) | ((hblankend - 1) << 16), par->dc_regs + DC_H_BLANK_TIMING);
+ rmwl((hsyncstart - 1) | ((hsyncend - 1) << 16), par->dc_regs + DC_H_SYNC_TIMING);
+ rmwl((vactive - 1) | ((vtotal - 1) << 16), par->dc_regs + DC_V_ACTIVE_TIMING);
+ rmwl((vblankstart - 1) | ((vblankend - 1) << 16), par->dc_regs + DC_V_BLANK_TIMING);
+ rmwl((vsyncstart - 1) | ((vsyncend - 1) << 16), par->dc_regs + DC_V_SYNC_TIMING);
/* Write final register values. */
- writel(dcfg, par->dc_regs + DC_DISPLAY_CFG);
- writel(gcfg, par->dc_regs + DC_GENERAL_CFG);
+ rmwl(dcfg, par->dc_regs + DC_DISPLAY_CFG);
+ rmwl(gcfg, par->dc_regs + DC_GENERAL_CFG);
par->vid_ops->configure_display(info);
diff --git a/drivers/video/geode/display_gx.h b/drivers/video/geode/display_gx.h
index 0af33f3..d20b877 100644
--- a/drivers/video/geode/display_gx.h
+++ b/drivers/video/geode/display_gx.h
@@ -20,6 +20,9 @@ extern struct geode_dc_ops gx_dc_ops;
#define GLD_MSR_CONFIG 0xC0002001
#define GLD_MSR_CONFIG_DM_FP 0x40
+/* Used for memory dection on the OLPC */
+#define GLIU0_P2D_RO0 0x10000029
+
/* Display controller registers */
#define DC_UNLOCK 0x00
diff --git a/drivers/video/geode/geodefb.h b/drivers/video/geode/geodefb.h
index ae04820..0214d11 100644
--- a/drivers/video/geode/geodefb.h
+++ b/drivers/video/geode/geodefb.h
@@ -12,6 +12,10 @@
#ifndef __GEODEFB_H__
#define __GEODEFB_H__
+#define FB_POWER_STATE_OFF 0
+#define FB_POWER_STATE_SUSPEND 1
+#define FB_POWER_STATE_ON 2
+
struct geodefb_info;
struct geode_dc_ops {
@@ -21,18 +25,24 @@ struct geode_dc_ops {
struct geode_vid_ops {
void (*set_dclk)(struct fb_info *);
+ unsigned int (*get_dclk)(struct fb_info *);
void (*configure_display)(struct fb_info *);
int (*blank_display)(struct fb_info *, int blank_mode);
};
struct geodefb_par {
int enable_crt;
+ int fbactive; /* True if the current console is in KD_GRAPHICS mode */
int panel_x; /* dimensions of an attached flat panel, non-zero => enable panel */
int panel_y;
+ unsigned int curdclk; /* Used by GX to avoid unnessesary clock switching */
void __iomem *dc_regs;
void __iomem *vid_regs;
+ void __iomem *gp_regs;
struct geode_dc_ops *dc_ops;
struct geode_vid_ops *vid_ops;
+
+ int state;
};
#endif /* !__GEODEFB_H__ */
diff --git a/drivers/video/geode/gxfb_core.c b/drivers/video/geode/gxfb_core.c
index cf841ef..3eabc53 100644
--- a/drivers/video/geode/gxfb_core.c
+++ b/drivers/video/geode/gxfb_core.c
@@ -30,12 +30,31 @@
#include <linux/fb.h>
#include <linux/init.h>
#include <linux/pci.h>
+#include <linux/notifier.h>
+#include <linux/vt_kern.h>
+#include <linux/console.h>
+#include <asm/uaccess.h>
+#include <asm/olpc.h>
#include "geodefb.h"
#include "display_gx.h"
#include "video_gx.h"
+#define FBIOSGAMMA _IOW('F', 0x20, void *)
+#define FBIOGGAMMA _IOW('F', 0x21, void *)
+
+#ifdef DEBUG
+
+#define FBIODUMPGP _IOW('F', 0x22, void *)
+#define FBIODUMPDC _IOW('F', 0x23, void *)
+#define FBIODUMPVP _IOW('F', 0x24, void *)
+#define FBIODUMPFP _IOW('F', 0x25, void *)
+
+#endif
+
static char *mode_option;
+static int noclear;
+struct fb_info *gxfb_info;
/* Modes relevant to the GX (taken from modedb.c) */
static const struct fb_videomode gx_modedb[] __initdata = {
@@ -103,8 +122,20 @@ static const struct fb_videomode gx_modedb[] __initdata = {
{ NULL, 85, 1600, 1200, 4357, 304, 64, 46, 1, 192, 3,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
+ /* 1200x900-75 - CRT timings for the OLPC mode */
+ { NULL, 75, 1200, 900, 8049, 104, 240, 29, 54, 136, 3,
+ 0, FB_VMODE_NONINTERLACED, 0 }
};
+#ifdef CONFIG_OLPC
+static const struct fb_videomode gx_dcon_modedb[] __initdata = {
+ /* The only mode the DCON has is 1200x900 */
+ { NULL, 50, 1200, 900, 17460, 24, 8, 4, 5, 8, 3,
+ 0, FB_VMODE_NONINTERLACED, 0 }
+};
+#endif
+
+
static int gxfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
{
if (var->xres > 1600 || var->yres > 1200)
@@ -137,7 +168,7 @@ static int gxfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
return 0;
}
-static int gxfb_set_par(struct fb_info *info)
+int gxfb_set_par(struct fb_info *info)
{
struct geodefb_par *par = info->par;
@@ -204,16 +235,26 @@ static int gxfb_blank(int blank_mode, struct fb_info *info)
return par->vid_ops->blank_display(info, blank_mode);
}
+static int fbsize;
+
static int __init gxfb_map_video_memory(struct fb_info *info, struct pci_dev *dev)
{
struct geodefb_par *par = info->par;
- int fb_len;
int ret;
ret = pci_enable_device(dev);
if (ret < 0)
return ret;
+ ret = pci_request_region(dev, 1, "gxfb (graphics processor)");
+ if (ret < 0)
+ return ret;
+
+ par->gp_regs = ioremap(pci_resource_start(dev, 1),
+ pci_resource_len(dev, 1));
+ if (!par->gp_regs)
+ return -ENOMEM;
+
ret = pci_request_region(dev, 3, "gxfb (video processor)");
if (ret < 0)
return ret;
@@ -232,36 +273,118 @@ static int __init gxfb_map_video_memory(struct fb_info *info, struct pci_dev *de
ret = pci_request_region(dev, 0, "gxfb (framebuffer)");
if (ret < 0)
return ret;
- if ((fb_len = gx_frame_buffer_size()) < 0)
- return -ENOMEM;
+
+ /* If the fbsize wasn't specified then try to probe it */
+
+ if (!fbsize) {
+ fbsize = gx_frame_buffer_size();
+ if (fbsize == 0)
+ return -ENOMEM;
+ }
+
info->fix.smem_start = pci_resource_start(dev, 0);
- info->fix.smem_len = fb_len;
+ info->fix.smem_len = fbsize;
info->screen_base = ioremap(info->fix.smem_start, info->fix.smem_len);
if (!info->screen_base)
return -ENOMEM;
- /* Set the 16MB aligned base address of the graphics memory region
+ /* Set the 16MiB aligned base address of the graphics memory region
* in the display controller */
writel(info->fix.smem_start & 0xFF000000,
par->dc_regs + DC_GLIU0_MEM_OFFSET);
- dev_info(&dev->dev, "%d Kibyte of video memory at 0x%lx\n",
+ dev_info(&dev->dev, "%d KiB of video memory at 0x%lx\n",
info->fix.smem_len / 1024, info->fix.smem_start);
return 0;
}
+static int gxfb_ioctl( struct fb_info *info, unsigned int cmd,
+ unsigned long arg)
+{
+ unsigned int gamma[GXFB_GAMMA_DWORDS];
+ int ret = -EINVAL;
+ struct geodefb_par *par = info->par;
+ int i;
+
+ switch(cmd) {
+ case FBIOSGAMMA:
+ /* Read the gamma information from the user - 256 dwords */
+
+ if (copy_from_user(gamma, (void * __user) arg, GXFB_GAMMA_SIZE))
+ return -EFAULT;
+
+ writel(0, par->vid_regs + GX_GAR);
+
+ /* Sequential writes to the data register will increment the
+ address automatically */
+
+ for(i = 0; i < GXFB_GAMMA_DWORDS; i++)
+ writel(gamma[i] & 0xFFFFFF, par->vid_regs + GX_GDR);
+
+ writel(readl(par->vid_regs + GX_MISC) & ~GX_MISC_GAM_EN,
+ par->vid_regs + GX_MISC);
+
+ ret = 0;
+ break;
+
+ case FBIOGGAMMA:
+ if (readl(par->vid_regs + GX_MISC) & GX_MISC_GAM_EN)
+ return -EINVAL;
+
+ memset(gamma, 0, GXFB_GAMMA_SIZE);
+ writel(0, par->vid_regs + GX_GAR);
+
+ for(i = 0; i < GXFB_GAMMA_DWORDS;i++)
+ gamma[i] = readl(par->vid_regs + GX_GDR);
+
+ if (copy_to_user((void * __user) arg, gamma, GXFB_GAMMA_SIZE))
+ ret = -EFAULT;
+ else
+ ret = 0;
+
+ break;
+
+#ifdef DEBUG
+ case FBIODUMPGP:
+ ret = 0;
+ dump_regs(info, 0);
+ break;
+
+ case FBIODUMPDC:
+ ret = 0;
+ dump_regs(info, 1);
+ break;
+
+ case FBIODUMPVP:
+ ret = 0;
+ dump_regs(info, 2);
+ break;
+
+ case FBIODUMPFP:
+ ret = 0;
+ dump_regs(info, 3);
+ break;
+#endif
+ }
+
+ return ret;
+}
+
static struct fb_ops gxfb_ops = {
.owner = THIS_MODULE,
.fb_check_var = gxfb_check_var,
.fb_set_par = gxfb_set_par,
.fb_setcolreg = gxfb_setcolreg,
.fb_blank = gxfb_blank,
+ .fb_ioctl = gxfb_ioctl,
/* No HW acceleration for now. */
.fb_fillrect = cfb_fillrect,
.fb_copyarea = cfb_copyarea,
.fb_imageblit = cfb_imageblit,
+ .fb_powerdown = gxfb_powerdown,
+ .fb_powerup = gxfb_powerup,
};
static struct fb_info * __init gxfb_init_fbinfo(struct device *dev)
@@ -303,23 +426,86 @@ static struct fb_info * __init gxfb_init_fbinfo(struct device *dev)
return info;
}
-static int __init gxfb_probe(struct pci_dev *pdev, const struct pci_device_id *id)
+static int gxfb_console_notify(struct notifier_block *self,
+ unsigned long action, void *data)
+{
+ if (gxfb_info != NULL) {
+ struct geodefb_par *par = gxfb_info->par;
+ par->fbactive = (action == CONSOLE_EVENT_SWITCH_TEXT) ? 0 : 1;
+ }
+
+ return NOTIFY_OK;
+}
+
+static struct notifier_block gxfb_console_notifier = {
+ .notifier_call = gxfb_console_notify
+};
+
+#ifdef CONFIG_PM
+
+static int gxfb_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+ struct fb_info *info = pci_get_drvdata(pdev);
+ struct geodefb_par *par = info->par;
+
+ if (pdev->dev.power.power_state.event == state.event)
+ return 0;
+
+ if (state.event == PM_EVENT_SUSPEND) {
+
+ acquire_console_sem();
+ gxfb_powerdown(info);
+
+ par->state = FB_POWER_STATE_OFF;
+ fb_set_suspend(info, 1);
+
+ release_console_sem();
+ }
+
+ pdev->dev.power.power_state = state;
+ return 0;
+}
+
+static int gxfb_resume(struct pci_dev *pdev)
+{
+ struct fb_info *info = pci_get_drvdata(pdev);
+
+ acquire_console_sem();
+
+ /* Turn the engine completely on */
+
+ if (gxfb_powerup(info))
+ printk(KERN_ERR "gxfb: Powerup failed\n");
+
+ fb_set_suspend(info, 0);
+ release_console_sem();
+
+ pdev->dev.power.power_state = PMSG_ON;
+ return 0;
+}
+#endif
+
+static int __init gxfb_probe(struct pci_dev *pdev,
+ const struct pci_device_id *id)
{
struct geodefb_par *par;
- struct fb_info *info;
int ret;
unsigned long val;
- info = gxfb_init_fbinfo(&pdev->dev);
- if (!info)
+ struct fb_videomode *modedb_ptr;
+ int modedb_size;
+
+ gxfb_info = gxfb_init_fbinfo(&pdev->dev);
+ if (gxfb_info == NULL)
return -ENOMEM;
- par = info->par;
+
+ par = gxfb_info->par;
/* GX display controller and GX video device. */
par->dc_ops = &gx_dc_ops;
par->vid_ops = &gx_vid_ops;
- if ((ret = gxfb_map_video_memory(info, pdev)) < 0) {
+ if ((ret = gxfb_map_video_memory(gxfb_info, pdev)) < 0) {
dev_err(&pdev->dev, "failed to map frame buffer or controller registers\n");
goto err;
}
@@ -333,32 +519,60 @@ static int __init gxfb_probe(struct pci_dev *pdev, const struct pci_device_id *i
else
par->enable_crt = 1;
- ret = fb_find_mode(&info->var, info, mode_option,
- gx_modedb, ARRAY_SIZE(gx_modedb), NULL, 16);
+ /* Get the current dotclock */
+
+ par->curdclk = (par->vid_ops->get_dclk) ? par->vid_ops->get_dclk(gxfb_info) : 0;
+
+ /* We need to determine a display mode right now, so we will
+ * check to see if the DCON was previously detected by the BIOS
+ * and use that to make our mode database decision.
+ */
+
+ modedb_ptr = (struct fb_videomode *) gx_modedb;
+ modedb_size = ARRAY_SIZE(gx_modedb);
+
+#ifdef CONFIG_OLPC
+ if (olpc_has_dcon()) {
+ modedb_ptr = (struct fb_videomode *) gx_dcon_modedb;
+ modedb_size = ARRAY_SIZE(gx_dcon_modedb);
+ }
+#endif
+
+ ret = fb_find_mode(&gxfb_info->var, gxfb_info, mode_option,
+ modedb_ptr, modedb_size, NULL, 16);
+
if (ret == 0 || ret == 4) {
dev_err(&pdev->dev, "could not find valid video mode\n");
ret = -EINVAL;
goto err;
}
+ /* Clear the screen of garbage, unless noclear was specified,
+ * in which case we assume the user knows what he is doing */
+
+ if (!noclear)
+ memset_io(gxfb_info->screen_base, 0, gxfb_info->fix.smem_len);
+
+ gxfb_check_var(&gxfb_info->var, gxfb_info);
+ gxfb_set_par(gxfb_info);
+
+ /* We are powered up */
+ par->state = FB_POWER_STATE_ON;
- /* Clear the frame buffer of garbage. */
- memset_io(info->screen_base, 0, info->fix.smem_len);
- gxfb_check_var(&info->var, info);
- gxfb_set_par(info);
+ console_event_register(&gxfb_console_notifier);
- if (register_framebuffer(info) < 0) {
+ if (register_framebuffer(gxfb_info) < 0) {
ret = -EINVAL;
goto err;
}
- pci_set_drvdata(pdev, info);
- printk(KERN_INFO "fb%d: %s frame buffer device\n", info->node, info->fix.id);
+ pci_set_drvdata(pdev, gxfb_info);
+ printk(KERN_INFO "fb%d: %s frame buffer device\n", gxfb_info->node, gxfb_info->fix.id);
return 0;
err:
- if (info->screen_base) {
- iounmap(info->screen_base);
+ if (gxfb_info->screen_base) {
+ iounmap(gxfb_info->screen_base);
pci_release_region(pdev, 0);
}
if (par->vid_regs) {
@@ -370,8 +584,9 @@ static int __init gxfb_probe(struct pci_dev *pdev, const struct pci_device_id *i
pci_release_region(pdev, 2);
}
- if (info)
- framebuffer_release(info);
+ if (gxfb_info)
+ framebuffer_release(gxfb_info);
+
return ret;
}
@@ -397,9 +612,7 @@ static void gxfb_remove(struct pci_dev *pdev)
}
static struct pci_device_id gxfb_id_table[] = {
- { PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_GX_VIDEO,
- PCI_ANY_ID, PCI_ANY_ID, PCI_BASE_CLASS_DISPLAY << 16,
- 0xff0000, 0 },
+ { PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_GX_VIDEO) },
{ 0, }
};
@@ -410,22 +623,30 @@ static struct pci_driver gxfb_driver = {
.id_table = gxfb_id_table,
.probe = gxfb_probe,
.remove = gxfb_remove,
+#ifdef CONFIG_PM
+ .suspend = gxfb_suspend,
+ .resume = gxfb_resume
+#endif
};
#ifndef MODULE
-static int __init gxfb_setup(char *options)
-{
+static int __init gxfb_setup(char *options) {
char *opt;
if (!options || !*options)
return 0;
- while ((opt = strsep(&options, ",")) != NULL) {
+ while((opt = strsep(&options, ",")) != NULL) {
if (!*opt)
continue;
- mode_option = opt;
+ if (!strncmp(opt, "fbsize:", 7))
+ fbsize = simple_strtoul(opt+7, NULL, 0);
+ else if (!strcmp(opt, "noclear"))
+ noclear = 1;
+ else
+ mode_option = opt;
}
return 0;
@@ -444,7 +665,6 @@ static int __init gxfb_init(void)
#endif
return pci_register_driver(&gxfb_driver);
}
-
static void __exit gxfb_cleanup(void)
{
pci_unregister_driver(&gxfb_driver);
@@ -456,5 +676,8 @@ module_exit(gxfb_cleanup);
module_param(mode_option, charp, 0);
MODULE_PARM_DESC(mode_option, "video mode (<x>x<y>[-<bpp>][@<refr>])");
+module_param(fbsize, int, 0);
+MODULE_PARM_DESC(fbsize, "video memory size");
+
MODULE_DESCRIPTION("Framebuffer driver for the AMD Geode GX");
MODULE_LICENSE("GPL");
diff --git a/drivers/video/geode/lxfb.h b/drivers/video/geode/lxfb.h
index 6c227f9..5be8a4d 100644
--- a/drivers/video/geode/lxfb.h
+++ b/drivers/video/geode/lxfb.h
@@ -25,10 +25,23 @@ void lx_set_mode(struct fb_info *);
void lx_get_gamma(struct fb_info *, unsigned int *, int);
void lx_set_gamma(struct fb_info *, unsigned int *, int);
unsigned int lx_framebuffer_size(void);
+int lx_shutdown(struct fb_info *);
+int lx_powerup(struct fb_info *);
int lx_blank_display(struct fb_info *, int);
void lx_set_palette_reg(struct fb_info *, unsigned int, unsigned int,
unsigned int, unsigned int);
+
+
+/* ioctl() defines */
+
+#define FBIOSGAMMA _IOW('F', 0x20, void *)
+#define FBIOGGAMMA _IOW('F', 0x21, void *)
+
+/* General definitions */
+#define LXFB_GAMMA_DWORDS 256 /* number of dwords in the gamma ram */
+#define LXFB_GAMMA_SIZE (LXFB_GAMMA_DWORDS * sizeof(unsigned int))
+
/* MSRS */
#define MSR_LX_GLD_CONFIG 0x48002001
diff --git a/drivers/video/geode/lxfb_core.c b/drivers/video/geode/lxfb_core.c
index 5e30b40..c9060ed 100644
--- a/drivers/video/geode/lxfb_core.c
+++ b/drivers/video/geode/lxfb_core.c
@@ -22,6 +22,7 @@
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/uaccess.h>
+#include <asm/olpc.h>
#include "lxfb.h"
@@ -35,186 +36,84 @@ static int fbsize;
*/
const struct fb_videomode geode_modedb[] __initdata = {
- /* 640x480-60 */
- { NULL, 60, 640, 480, 39682, 48, 8, 25, 2, 88, 2,
+ /* 640x480-60 VESA */
+ { NULL, 60, 640, 480, 39682, 48, 16, 33, 10, 96, 2,
+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
+ /* 640x480-75 VESA */
+ { NULL, 75, 640, 480, 31746, 120, 16, 16, 01, 64, 3,
+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
+ /* 640x480-85 VESA */
+ { NULL, 85, 640, 480, 27777, 80, 56, 25, 01, 56, 3,
+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
+ /* 800x600-60 VESA */
+ { NULL, 60, 800, 600, 25000, 88, 40, 23, 01, 128, 4,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
- FB_VMODE_NONINTERLACED, 0 },
- /* 640x400-70 */
- { NULL, 70, 640, 400, 39770, 40, 8, 28, 5, 96, 2,
- FB_SYNC_HOR_HIGH_ACT,
- FB_VMODE_NONINTERLACED, 0 },
- /* 640x480-70 */
- { NULL, 70, 640, 480, 35014, 88, 24, 15, 2, 64, 3,
- 0, FB_VMODE_NONINTERLACED, 0 },
- /* 640x480-72 */
- { NULL, 72, 640, 480, 32102, 120, 16, 20, 1, 40, 3,
+ FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
+ /* 800x600-75 VESA */
+ { NULL, 75, 800, 600, 20202, 160, 16, 21, 01, 80, 3,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
- FB_VMODE_NONINTERLACED, 0 },
- /* 640x480-75 */
- { NULL, 75, 640, 480, 31746, 120, 16, 16, 1, 64, 3,
+ FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
+ /* 800x600-85 VESA */
+ { NULL, 85, 800, 600, 17761, 152, 32, 27, 01, 64, 3,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
- FB_VMODE_NONINTERLACED, 0 },
- /* 640x480-85 */
- { NULL, 85, 640, 480, 27780, 80, 56, 25, 1, 56, 3,
+ FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
+ /* 1024x768-60 VESA */
+ { NULL, 60, 1024, 768, 15384, 160, 24, 29, 3, 136, 6,
+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
+ /* 1024x768-75 VESA */
+ { NULL, 75, 1024, 768, 12690, 176, 16, 28, 1, 96, 3,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
- FB_VMODE_NONINTERLACED, 0 },
- /* 640x480-90 */
- { NULL, 90, 640, 480, 26392, 96, 32, 22, 1, 64, 3,
- 0, FB_VMODE_NONINTERLACED, 0 },
- /* 640x480-100 */
- { NULL, 100, 640, 480, 23167, 104, 40, 25, 1, 64, 3,
- 0, FB_VMODE_NONINTERLACED, 0 },
- /* 640x480-60 */
- { NULL, 60, 640, 480, 39682, 48, 16, 25, 10, 88, 2,
+ FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
+ /* 1024x768-85 VESA */
+ { NULL, 85, 1024, 768, 10582, 208, 48, 36, 1, 96, 3,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
- FB_VMODE_NONINTERLACED, 0 },
- /* 800x600-56 */
- { NULL, 56, 800, 600, 27901, 128, 24, 22, 1, 72, 2,
- 0, FB_VMODE_NONINTERLACED, 0 },
- /* 800x600-60 */
- { NULL, 60, 800, 600, 25131, 72, 32, 23, 1, 136, 4,
- 0, FB_VMODE_NONINTERLACED, 0 },
- /* 800x600-70 */
- { NULL, 70, 800, 600, 21873, 120, 40, 21, 4, 80, 3,
- 0, FB_VMODE_NONINTERLACED, 0 },
- /* 800x600-72 */
- { NULL, 72, 800, 600, 20052, 64, 56, 23, 37, 120, 6,
- 0, FB_VMODE_NONINTERLACED, 0 },
- /* 800x600-75 */
- { NULL, 75, 800, 600, 20202, 160, 16, 21, 1, 80, 3,
- 0, FB_VMODE_NONINTERLACED, 0 },
- /* 800x600-85 */
- { NULL, 85, 800, 600, 17790, 152, 32, 27, 1, 64, 3,
- 0, FB_VMODE_NONINTERLACED, 0 },
- /* 800x600-90 */
- { NULL, 90, 800, 600, 16648, 128, 40, 28, 1, 88, 3,
- 0, FB_VMODE_NONINTERLACED, 0 },
- /* 800x600-100 */
- { NULL, 100, 800, 600, 14667, 136, 48, 27, 1, 88, 3,
- 0, FB_VMODE_NONINTERLACED, 0 },
- /* 800x600-60 */
- { NULL, 60, 800, 600, 25131, 88, 40, 23, 1, 128, 4,
+ FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
+ /* 1280x960-60 VESA */
+ { NULL, 60, 1280, 960, 9259, 312, 96, 36, 1, 112, 3,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
- FB_VMODE_NONINTERLACED, 0 },
- /* 1024x768-60 */
- { NULL, 60, 1024, 768, 15385, 160, 24, 29, 3, 136, 6,
+ FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
+ /* 1280x960-85 VESA */
+ { NULL, 85, 1280, 960, 6734, 224, 64, 47, 1, 160, 3,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
- FB_VMODE_NONINTERLACED, 0 },
- /* 1024x768-70 */
- { NULL, 70, 1024, 768, 13346, 144, 24, 29, 3, 136, 6,
+ FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
+ /* 1280x1024-60 VESA */
+ { NULL, 60, 1280, 1024, 9259, 248, 48, 38, 1, 112, 3,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
- FB_VMODE_NONINTERLACED, 0 },
- /* 1024x768-72 */
- { NULL, 72, 1024, 768, 12702, 168, 56, 29, 4, 112, 3,
- 0, FB_VMODE_NONINTERLACED, 0 },
- /* 1024x768-75 */
- { NULL, 75, 1024, 768, 12703, 176, 16, 28, 1, 96, 3,
- 0, FB_VMODE_NONINTERLACED, 0 },
- /* 1024x768-85 */
- { NULL, 85, 1024, 768, 10581, 208, 48, 36, 1, 96, 3,
- 0, FB_VMODE_NONINTERLACED, 0 },
- /* 1024x768-90 */
- { NULL, 90, 1024, 768, 9981, 176, 64, 37, 1, 112, 3,
- 0, FB_VMODE_NONINTERLACED, 0 },
- /* 1024x768-100 */
- { NULL, 100, 1024, 768, 8825, 184, 72, 42, 1, 112, 3,
- 0, FB_VMODE_NONINTERLACED, 0 },
- /* 1024x768-60 */
- { NULL, 60, 1024, 768, 15385, 160, 24, 29, 3, 136, 6,
+ FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
+ /* 1280x1024-75 VESA */
+ { NULL, 75, 1280, 1024, 7407, 248, 16, 38, 1, 144, 3,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
- FB_VMODE_NONINTERLACED, 0 },
- /* 1152x864-60 */
- { NULL, 60, 1152, 864, 12251, 184, 64, 27, 1, 120, 3,
- 0, FB_VMODE_NONINTERLACED, 0 },
- /* 1152x864-70 */
- { NULL, 70, 1152, 864, 10254, 192, 72, 32, 8, 120, 3,
- 0, FB_VMODE_NONINTERLACED, 0 },
- /* 1152x864-72 */
- { NULL, 72, 1152, 864, 9866, 200, 72, 33, 7, 128, 3,
- 0, FB_VMODE_NONINTERLACED, 0 },
- /* 1152x864-75 */
- { NULL, 75, 1152, 864, 9259, 256, 64, 32, 1, 128, 3,
- 0, FB_VMODE_NONINTERLACED, 0 },
- /* 1152x864-85 */
- { NULL, 85, 1152, 864, 8357, 200, 72, 37, 3, 128, 3,
- 0, FB_VMODE_NONINTERLACED, 0 },
- /* 1152x864-90 */
- { NULL, 90, 1152, 864, 7719, 208, 80, 42, 9, 128, 3,
- 0, FB_VMODE_NONINTERLACED, 0 },
- /* 1152x864-100 */
- { NULL, 100, 1152, 864, 6947, 208, 80, 48, 3, 128, 3,
- 0, FB_VMODE_NONINTERLACED, 0 },
- /* 1152x864-60 */
- { NULL, 60, 1152, 864, 12251, 184, 64, 27, 1, 120, 3,
+ FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
+ /* 1280x1024-85 VESA */
+ { NULL, 85, 1280, 1024, 6349, 224, 64, 44, 1, 160, 3,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
- FB_VMODE_NONINTERLACED, 0 },
- /* 1280x1024-60 */
- { NULL, 60, 1280, 1024, 9262, 248, 48, 38, 1, 112, 3,
- 0, FB_VMODE_NONINTERLACED, 0 },
- /* 1280x1024-70 */
- { NULL, 70, 1280, 1024, 7719, 224, 88, 38, 6, 136, 3,
- 0, FB_VMODE_NONINTERLACED, 0 },
- /* 1280x1024-72 */
- { NULL, 72, 1280, 1024, 7490, 224, 88, 39, 7, 136, 3,
- 0, FB_VMODE_NONINTERLACED, 0 },
- /* 1280x1024-75 */
- { NULL, 75, 1280, 1024, 7409, 248, 16, 38, 1, 144, 3,
- 0, FB_VMODE_NONINTERLACED, 0 },
- /* 1280x1024-85 */
- { NULL, 85, 1280, 1024, 6351, 224, 64, 44, 1, 160, 3,
- 0, FB_VMODE_NONINTERLACED, 0 },
- /* 1280x1024-90 */
- { NULL, 90, 1280, 1024, 5791, 240, 96, 51, 12, 144, 3,
- 0, FB_VMODE_NONINTERLACED, 0 },
- /* 1280x1024-100 */
- { NULL, 100, 1280, 1024, 5212, 240, 96, 57, 6, 144, 3,
- 0, FB_VMODE_NONINTERLACED, 0 },
- /* 1280x1024-60 */
- { NULL, 60, 1280, 1024, 9262, 248, 48, 38, 1, 112, 3,
- FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
- FB_VMODE_NONINTERLACED, 0 },
- /* 1600x1200-60 */
+ FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
+ /* 1600x1200-60 VESA */
{ NULL, 60, 1600, 1200, 6172, 304, 64, 46, 1, 192, 3,
- 0, FB_VMODE_NONINTERLACED, 0 },
- /* 1600x1200-70 */
- { NULL, 70, 1600, 1200, 5291, 304, 64, 46, 1, 192, 3,
- 0, FB_VMODE_NONINTERLACED, 0 },
- /* 1600x1200-72 */
- { NULL, 72, 1600, 1200, 5053, 288, 112, 47, 13, 176, 3,
- 0, FB_VMODE_NONINTERLACED, 0 },
- /* 1600x1200-75 */
+ FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+ FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
+ /* 1600x1200-75 VESA */
{ NULL, 75, 1600, 1200, 4938, 304, 64, 46, 1, 192, 3,
- 0, FB_VMODE_NONINTERLACED, 0 },
- /* 1600x1200-85 */
+ FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+ FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
+ /* 1600x1200-85 VESA */
{ NULL, 85, 1600, 1200, 4357, 304, 64, 46, 1, 192, 3,
- 0, FB_VMODE_NONINTERLACED, 0 },
- /* 1600x1200-90 */
- { NULL, 90, 1600, 1200, 3981, 304, 128, 60, 1, 176, 3,
- 0, FB_VMODE_NONINTERLACED, 0 },
- /* 1600x1200-100 */
- { NULL, 100, 1600, 1200, 3563, 304, 128, 67, 1, 176, 3,
- 0, FB_VMODE_NONINTERLACED, 0 },
- /* 1600x1200-60 */
- { NULL, 60, 1600, 1200, 6172, 304, 64, 46, 1, 192, 3,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
- FB_VMODE_NONINTERLACED, 0 },
- /* 1920x1440-60 */
- { NULL, 60, 1920, 1440, 4273, 344, 128, 56, 1, 208, 3,
- 0, FB_VMODE_NONINTERLACED, 0 },
- /* 1920x1440-70 */
- { NULL, 70, 1920, 1440, 3593, 360, 152, 55, 8, 208, 3,
- 0, FB_VMODE_NONINTERLACED, 0 },
- /* 1920x1440-72 */
- { NULL, 72, 1920, 1440, 3472, 360, 152, 68, 4, 208, 3,
- 0, FB_VMODE_NONINTERLACED, 0 },
- /* 1920x1440-75 */
- { NULL, 75, 1920, 1440, 3367, 352, 144, 56, 1, 224, 3,
- 0, FB_VMODE_NONINTERLACED, 0 },
- /* 1920x1440-85 */
- { NULL, 85, 1920, 1440, 2929, 368, 152, 68, 1, 216, 3,
- 0, FB_VMODE_NONINTERLACED, 0 },
+ FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
+ /* 1200x900-75 - CRT timings for the OLPC mode */
+ { NULL, 75, 1200, 900, 8049, 104, 240, 29, 54, 136, 3,
+ 0, FB_VMODE_NONINTERLACED, 0 }
};
+#ifdef CONFIG_OLPC
+const struct fb_videomode olpc_dcon_modedb[] __initdata = {
+ /* The only mode the DCON has is 1200x900 */
+ { NULL, 50, 1200, 900, 17460, 24, 8, 4, 5, 8, 3,
+ FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+ FB_VMODE_NONINTERLACED, 0 }
+};
+#endif
+
static int lxfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
{
if (var->xres > 1920 || var->yres > 1440)
@@ -379,16 +278,55 @@ static int __init lxfb_map_video_memory(struct fb_info *info,
return 0;
}
+static int lxfb_set_gamma(struct fb_info *info, void * __user data)
+{
+ unsigned int gamma[LXFB_GAMMA_DWORDS];
+
+ if (copy_from_user(gamma, data, LXFB_GAMMA_SIZE))
+ return -EFAULT;
+
+ lx_set_gamma(info, gamma, LXFB_GAMMA_SIZE);
+ return 0;
+}
+
+static int lxfb_get_gamma(struct fb_info *info, void * __user data)
+{
+ unsigned int gamma[LXFB_GAMMA_DWORDS];
+ memset(gamma, 0, sizeof(gamma));
+
+ lx_get_gamma(info, gamma, LXFB_GAMMA_DWORDS);
+
+ return copy_to_user(data, gamma, LXFB_GAMMA_SIZE) ?
+ -EFAULT : 0;
+}
+
+static int lxfb_ioctl( struct fb_info *info, unsigned int cmd,
+ unsigned long arg)
+{
+ switch(cmd) {
+ case FBIOSGAMMA:
+ return lxfb_set_gamma(info, (void * __user) arg);
+
+ case FBIOGGAMMA:
+ return lxfb_get_gamma(info, (void * __user) arg);
+ }
+
+ return -ENOTTY;
+}
+
static struct fb_ops lxfb_ops = {
.owner = THIS_MODULE,
.fb_check_var = lxfb_check_var,
.fb_set_par = lxfb_set_par,
.fb_setcolreg = lxfb_setcolreg,
.fb_blank = lxfb_blank,
+ .fb_ioctl = lxfb_ioctl,
/* No HW acceleration for now. */
.fb_fillrect = cfb_fillrect,
.fb_copyarea = cfb_copyarea,
.fb_imageblit = cfb_imageblit,
+ .fb_powerdown = lx_shutdown,
+ .fb_powerup = lx_powerup,
};
static struct fb_info * __init lxfb_init_fbinfo(struct device *dev)
@@ -431,6 +369,45 @@ static struct fb_info * __init lxfb_init_fbinfo(struct device *dev)
return info;
}
+#ifdef CONFIG_PM
+
+static int lxfb_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+ struct fb_info *info = pci_get_drvdata(pdev);
+
+ if (pdev->dev.power.power_state.event == state.event)
+ return 0;
+
+ if (state.event == PM_EVENT_SUSPEND) {
+
+ acquire_console_sem();
+ lx_shutdown(info);
+ fb_set_suspend(info, 1);
+ release_console_sem();
+ }
+
+ pdev->dev.power.power_state = state;
+ return 0;
+}
+
+static int lxfb_resume(struct pci_dev *pdev)
+{
+ struct fb_info *info = pci_get_drvdata(pdev);
+
+ acquire_console_sem();
+
+ /* Turn the engine completely on */
+
+ lx_powerup(info);
+ fb_set_suspend(info, 0);
+ release_console_sem();
+
+ pdev->dev.power.power_state = PMSG_ON;
+ return 0;
+}
+
+#endif
+
static int __init lxfb_probe(struct pci_dev *pdev,
const struct pci_device_id *id)
{
@@ -467,6 +444,13 @@ static int __init lxfb_probe(struct pci_dev *pdev,
modedb_ptr = (struct fb_videomode *) geode_modedb;
modedb_size = ARRAY_SIZE(geode_modedb);
+#ifdef CONFIG_OLPC
+ if (olpc_has_dcon()) {
+ modedb_ptr = (struct fb_videomode *) olpc_dcon_modedb;
+ modedb_size = ARRAY_SIZE(olpc_dcon_modedb);
+ }
+#endif
+
ret = fb_find_mode(&info->var, info, mode_option,
modedb_ptr, modedb_size, NULL, 16);
@@ -556,6 +540,10 @@ static struct pci_driver lxfb_driver = {
.id_table = lxfb_id_table,
.probe = lxfb_probe,
.remove = lxfb_remove,
+#ifdef CONFIG_PM
+ .suspend = lxfb_suspend,
+ .resume = lxfb_resume
+#endif
};
#ifndef MODULE
diff --git a/drivers/video/geode/lxfb_ops.c b/drivers/video/geode/lxfb_ops.c
index 4fbc99b..47ed9de 100644
--- a/drivers/video/geode/lxfb_ops.c
+++ b/drivers/video/geode/lxfb_ops.c
@@ -13,9 +13,13 @@
#include <linux/fb.h>
#include <linux/uaccess.h>
#include <linux/delay.h>
+#include <asm/olpc.h>
#include "lxfb.h"
+#define _GEODELX_
+#include "geode_regs.h"
+
/* TODO
* Support panel scaling
* Add acceleration
@@ -290,6 +294,19 @@ unsigned int lx_framebuffer_size(void)
{
unsigned int val;
+#ifdef CONFIG_OLPC
+ if (machine_is_olpc() && !olpc_has_vsa()) {
+ u32 hi,lo;
+ rdmsr(MSR_LX_GLIU0_P2D_RO0, lo, hi);
+
+ /* Top page number */
+ val = ((hi & 0xff) << 12) | ((lo & 0xfff00000) >> 20);
+ val -= (lo & 0x000fffff); /* Subtract bottom page number */
+ val += 1; /* Adjust page count */
+ return (val << 12);
+ }
+#endif
+
/* The frame buffer size is reported by a VSM in VSA II */
/* Virtual Register Class = 0x02 */
/* VG_MEM_SIZE (1MB units) = 0x00 */
@@ -301,6 +318,34 @@ unsigned int lx_framebuffer_size(void)
return (val << 20);
}
+void lx_set_gamma(struct fb_info *info, unsigned int *gamma, int len)
+{
+ int i;
+ struct lxfb_par *par = info->par;
+
+ writel(0, par->df_regs + DF_PAR);
+
+ /* Sequential writes to the data register will increment the
+ address automatically */
+
+ for(i = 0; i < len; i++)
+ writel(gamma[i] & 0xFFFFFF, par->df_regs + DF_PDR);
+
+ writel(readl(par->df_regs + DF_MISC) & ~DF_MISC_GAM_BYPASS,
+ par->df_regs + DF_MISC);
+}
+
+void lx_get_gamma(struct fb_info *info, unsigned int *gamma, int len)
+{
+ int i;
+ struct lxfb_par *par = info->par;
+
+ writel(0, par->df_regs + DF_PAR);
+
+ for(i = 0; i < len;i++)
+ gamma[i] = readl(par->df_regs + DF_PDR);
+}
+
void lx_set_mode(struct fb_info *info)
{
struct lxfb_par *par = info->par;
@@ -313,6 +358,7 @@ void lx_set_mode(struct fb_info *info)
int vactive, vblankstart, vsyncstart, vsyncend, vblankend, vtotal;
/* Unlock the DC registers */
+ readl(par->dc_regs + DC_UNLOCK);
writel(DC_UNLOCK_CODE, par->dc_regs + DC_UNLOCK);
lx_graphics_disable(info);
@@ -534,3 +580,285 @@ int lx_blank_display(struct fb_info *info, int blank_mode)
return 0;
}
+
+static struct geoderegs saved_regs;
+
+static void lx_save_regs(struct fb_info *info, struct geoderegs *regs)
+{
+ struct lxfb_par *par = info->par;
+ int i;
+
+ /* Wait for the command buffer to empty */
+ while(!(readl(par->gp_regs + 0x44) & (1 << 4)));
+
+ rdmsrl(MSR_LX_DF_PADSEL, regs->msr.padsel);
+ rdmsrl(MSR_LX_GLCP_DOTPLL, regs->msr.dotpll);
+ rdmsrl(MSR_LX_DF_GLCONFIG, regs->msr.dfglcfg);
+ rdmsrl(MSR_LX_DC_SPARE, regs->msr.dcspare);
+
+ writel(0x4758, par->dc_regs + 0x00);
+
+ memcpy(regs->gp.b, par->gp_regs, GP_REG_SIZE);
+ memcpy(regs->dc.b, par->dc_regs, DC_REG_SIZE);
+ memcpy(regs->vp.b, par->df_regs, VP_REG_SIZE);
+ memcpy(regs->fp.b, par->df_regs + VP_FP_START, FP_REG_SIZE);
+
+ /* Save the palettes */
+ writel(0, par->dc_regs + 0x70);
+
+ for(i = 0; i < DC_PAL_SIZE; i++)
+ regs->pal[i] = readl(par->dc_regs + 0x74);
+
+ writel(0, par->df_regs + 0x38);
+
+ for(i = 0; i <= 0xFF; i++)
+ regs->gamma[i] = readl(par->df_regs + 0x40);
+}
+
+static void lx_restore_regs(struct fb_info *info, struct geoderegs *regs)
+{
+ struct lxfb_par *par = info->par;
+ u32 val, i;
+
+ /* == DOTPLL == */
+
+ lx_set_dotpll((u32) (regs->msr.dotpll >> 32));
+
+ /* MSRs */
+
+ wrmsrl(MSR_LX_DF_GLCONFIG, regs->msr.dfglcfg);
+
+ /* == GP == */
+
+ writel(regs->gp.r.dst_offset, par->gp_regs + 0x00);
+ writel(regs->gp.r.src_offset, par->gp_regs + 0x04);
+ writel(regs->gp.r.stride, par->gp_regs + 0x08);
+ writel(regs->gp.r.wid_height, par->gp_regs + 0x0C);
+ writel(regs->gp.r.src_color_fg, par->gp_regs + 0x10);
+ writel(regs->gp.r.src_color_bg, par->gp_regs + 0x14);
+ writel(regs->gp.r.pat_color_0, par->gp_regs + 0x18);
+ writel(regs->gp.r.pat_color_1, par->gp_regs + 0x1C);
+ writel(regs->gp.r.pat_color_2, par->gp_regs + 0x20);
+ writel(regs->gp.r.pat_color_3, par->gp_regs + 0x24);
+ writel(regs->gp.r.pat_color_4, par->gp_regs + 0x28);
+ writel(regs->gp.r.pat_color_5, par->gp_regs + 0x2C);
+ writel(regs->gp.r.pat_data_0, par->gp_regs + 0x30);
+ writel(regs->gp.r.pat_data_1, par->gp_regs + 0x34);
+
+ /* Writing to these registers would cause a blt to happen */
+ /* 0x38, 0x3c, 0x40 */
+
+ /* Status register (0x44) is read only */
+
+ writel(regs->gp.r.hst_src, par->gp_regs + 0x48);
+ writel(regs->gp.r.base_offset, par->gp_regs + 0x4c);
+ writel(regs->gp.r.cmd_top, par->gp_regs + 0x50);
+ writel(regs->gp.r.cmd_bot, par->gp_regs + 0x54);
+ writel(regs->gp.r.cmd_read, par->gp_regs + 0x58);
+ writel(regs->gp.r.cmd_write, par->gp_regs + 0x5C);
+ writel(regs->gp.r.ch3_offset, par->gp_regs + 0x60);
+ writel(regs->gp.r.ch3_mode_str, par->gp_regs + 0x64);
+ writel(regs->gp.r.ch3_width, par->gp_regs + 0x6C);
+ writel(regs->gp.r.ch3_hsrc, par->gp_regs + 0x70);
+
+ /* FIXME: Restore the LUT data here */
+
+ writel(regs->gp.r.int_cntrl, par->gp_regs + 0x70);
+
+ /* == DC == */
+
+ /* Write the unlock value */
+ writel(0x4758, par->dc_regs + 0x00);
+
+ /* Write the palette data first */
+
+ writel(0, par->dc_regs + 0x70);
+
+ for(i = 0; i < DC_PAL_SIZE; i++)
+ writel(regs->pal[i], par->dc_regs + 0x74);
+
+ /* MSRs */
+ wrmsrl(MSR_LX_DC_SPARE, regs->msr.dcspare);
+
+ /* Write the gcfg register without the enables */
+ writel(regs->dc.r.gcfg & ~0x0F, par->dc_regs + 0x04);
+
+ /* Write the vcfg register without the enables */
+ writel(regs->dc.r.dcfg & ~0x19, par->dc_regs + 0x08);
+
+ /* Write the rest of the active registers */
+ writel(regs->dc.r.arb, par->dc_regs + 0x0C);
+ writel(regs->dc.r.fb_st_offset, par->dc_regs + 0x10);
+ writel(regs->dc.r.cb_st_offset, par->dc_regs + 0x14);
+ writel(regs->dc.r.curs_st_offset, par->dc_regs + 0x18);
+ writel(regs->dc.r.icon_st_offset, par->dc_regs + 0x1C);
+ writel(regs->dc.r.vid_y_st_offset, par->dc_regs + 0x20);
+ writel(regs->dc.r.vid_u_st_offset, par->dc_regs + 0x24);
+ writel(regs->dc.r.vid_v_st_offset, par->dc_regs + 0x28);
+ writel(regs->dc.r.dctop, par->dc_regs + 0x2c);
+ writel(regs->dc.r.line_size, par->dc_regs + 0x30);
+ writel(regs->dc.r.gfx_pitch, par->dc_regs + 0x34);
+ writel(regs->dc.r.vid_yuv_pitch, par->dc_regs + 0x38);
+ writel(regs->dc.r.h_active_timing, par->dc_regs + 0x40);
+ writel(regs->dc.r.h_blank_timing, par->dc_regs + 0x44);
+ writel(regs->dc.r.h_sync_timing, par->dc_regs + 0x48);
+ writel(regs->dc.r.v_active_timing, par->dc_regs + 0x50);
+ writel(regs->dc.r.v_blank_timing, par->dc_regs + 0x54);
+ writel(regs->dc.r.v_sync_timing, par->dc_regs + 0x58);
+ writel(regs->dc.r.fbactive, par->dc_regs + 0x5c);
+ writel(regs->dc.r.dc_cursor_x, par->dc_regs + 0x60);
+ writel(regs->dc.r.dc_cursor_y, par->dc_regs + 0x64);
+ writel(regs->dc.r.dc_icon_x, par->dc_regs + 0x68);
+
+ /* Skip register 0x6C (line_cnt), 0x70/0x74 (palette),
+ 0x78 (diagnostic), and 0x7c (diagnostic)
+ */
+
+ writel(regs->dc.r.dc_vid_ds_delta, par->dc_regs + 0x80);
+ writel(regs->dc.r.gliu0_mem_offset, par->dc_regs + 0x84);
+ writel(regs->dc.r.dv_ctl, par->dc_regs + 0x88);
+ writel(regs->dc.r.dv_acc, par->dc_regs + 0x8C);
+
+ writel(regs->dc.r.gfx_scale, par->dc_regs + 0x90);
+ writel(regs->dc.r.irq_filt_ctl, par->dc_regs + 0x94);
+ writel(regs->dc.r.filt_coeff1, par->dc_regs + 0x98);
+ writel(regs->dc.r.filt_coeff2, par->dc_regs + 0x9C);
+ writel(regs->dc.r.vbi_event_ctl, par->dc_regs + 0xA0);
+
+ writel(regs->dc.r.vbi_odd_ctl, par->dc_regs + 0xA4);
+ writel(regs->dc.r.vbi_hor, par->dc_regs + 0xA8);
+ writel(regs->dc.r.vbi_ln_odd, par->dc_regs + 0xAC);
+ writel(regs->dc.r.vbi_ln_event, par->dc_regs + 0xB0);
+ writel(regs->dc.r.vbi_pitch, par->dc_regs + 0xB4);
+ writel(regs->dc.r.clr_key, par->dc_regs + 0xB8);
+ writel(regs->dc.r.clr_key_mask, par->dc_regs + 0xBC);
+
+ writel(regs->dc.r.clr_key_x, par->dc_regs + 0xC0);
+ writel(regs->dc.r.clr_key_y, par->dc_regs + 0xC4);
+ writel(regs->dc.r.irq, par->dc_regs + 0xC8);
+ writel(regs->dc.r.genlk_ctrl, par->dc_regs + 0xD4);
+
+ writel(regs->dc.r.vid_even_y_st_offset, par->dc_regs + 0xD8);
+ writel(regs->dc.r.vid_even_u_st_offset, par->dc_regs + 0xDC);
+ writel(regs->dc.r.vid_even_v_st_offset, par->dc_regs + 0xE0);
+
+ writel(regs->dc.r.v_active_even_timing, par->dc_regs + 0xE4);
+ writel(regs->dc.r.v_blank_even_timing, par->dc_regs + 0xE8);
+ writel(regs->dc.r.v_sync_even_timing, par->dc_regs + 0xEC);
+
+ /* == VP == */
+
+ /* MSR */
+ wrmsrl(MSR_LX_DF_PADSEL, regs->msr.padsel);
+
+ /* Write gamma information first */
+
+ writel(0, par->df_regs + 0x38);
+
+ for(i = 0; i <= 0xFF; i++)
+ writel((u32) regs->gamma[i], par->df_regs + 0x40);
+
+ /* Don't enable video yet */
+ writel((u32) regs->vp.r.vcfg & ~0x01, par->df_regs + 0x00);
+
+ /* Don't enable the CRT yet */
+ writel((u32) regs->vp.r.dcfg & ~0x0F, par->df_regs + 0x08);
+
+ /* Write the rest of the VP registers */
+
+ writel((u32) regs->vp.r.vx, par->df_regs + 0x10);
+ writel((u32) regs->vp.r.vy, par->df_regs + 0x18);
+ writel((u32) regs->vp.r.vs, par->df_regs + 0x20);
+ writel((u32) regs->vp.r.vck, par->df_regs + 0x28);
+ writel((u32) regs->vp.r.vcm, par->df_regs + 0x30);
+ writel((u32) regs->vp.r.misc, par->df_regs + 0x50);
+ writel((u32) regs->vp.r.ccs, par->df_regs + 0x58);
+ writel((u32) regs->vp.r.vdc, par->df_regs + 0x78);
+ writel((u32) regs->vp.r.vco, par->df_regs + 0x80);
+ writel((u32) regs->vp.r.crc, par->df_regs + 0x88);
+ writel((u32) regs->vp.r.vde, par->df_regs + 0x98);
+ writel((u32) regs->vp.r.cck, par->df_regs + 0xA0);
+ writel((u32) regs->vp.r.ccm, par->df_regs + 0xA8);
+ writel((u32) regs->vp.r.cc1, par->df_regs + 0xB0);
+ writel((u32) regs->vp.r.cc2, par->df_regs + 0xB8);
+ writel((u32) regs->vp.r.a1x, par->df_regs + 0xC0);
+ writel((u32) regs->vp.r.a1y, par->df_regs + 0xC8);
+ writel((u32) regs->vp.r.a1c, par->df_regs + 0xD0);
+ writel((u32) regs->vp.r.a1t, par->df_regs + 0xD8);
+ writel((u32) regs->vp.r.a2x, par->df_regs + 0xE0);
+ writel((u32) regs->vp.r.a2y, par->df_regs + 0xE8);
+ writel((u32) regs->vp.r.a2c, par->df_regs + 0xF0);
+ writel((u32) regs->vp.r.a2t, par->df_regs + 0xF8);
+ writel((u32) regs->vp.r.a3x, par->df_regs + 0x100);
+ writel((u32) regs->vp.r.a3y, par->df_regs + 0x108);
+ writel((u32) regs->vp.r.a3c, par->df_regs + 0x110);
+ writel((u32) regs->vp.r.a3t, par->df_regs + 0x118);
+ writel((u32) regs->vp.r.vrr, par->df_regs + 0x120);
+
+ writel((u32) regs->vp.r.vye, par->df_regs + 0x138);
+ writel((u32) regs->vp.r.a1ye, par->df_regs + 0x140);
+ writel((u32) regs->vp.r.a2ye, par->df_regs + 0x148);
+ writel((u32) regs->vp.r.a3ye, par->df_regs + 0x150);
+
+ /* == FP == */
+
+ writel((u32) regs->fp.r.pt1, par->df_regs + 0x400);
+ writel((u32) regs->fp.r.pt2, par->df_regs + 0x408);
+ writel((u32) regs->fp.r.dfc, par->df_regs + 0x418);
+ writel(regs->fp.r.dca, par->df_regs + 0x448);
+ writel(regs->fp.r.dmd, par->df_regs + 0x450);
+ writel(regs->fp.r.crc, par->df_regs + 0x458);
+
+ /* Final enables */
+
+ val = readl(par->df_regs + 0x410);
+
+ /* Control the panel */
+ if (regs->fp.r.pm & (1 << 24)) {
+
+ if (!(val & 0x09))
+ writel(regs->fp.r.pm, par->df_regs + 0x410);
+ }
+ else {
+ if (!(val & 0x05))
+ writel(regs->fp.r.pm, par->df_regs + 0x410);
+ }
+
+ /* Turn everything on */
+
+ writel(regs->dc.r.gcfg, par->dc_regs + 0x04);
+ writel((u32) regs->vp.r.vcfg, par->df_regs + 0x00);
+ writel((u32) regs->vp.r.dcfg, par->df_regs + 0x08);
+ writel(regs->dc.r.dcfg, par->dc_regs + 0x08);
+}
+
+static int lx_power_on = 1;
+
+int lx_shutdown(struct fb_info *info)
+{
+ struct lxfb_par *par = info->par;
+
+ if (lx_power_on == 0)
+ return 0;
+
+ writel(DC_UNLOCK_CODE, par->dc_regs + DC_UNLOCK);
+ lx_save_regs(info, &saved_regs);
+ lx_graphics_disable(info);
+
+ lx_power_on = 0;
+ return 0;
+}
+
+int lx_powerup(struct fb_info *info)
+{
+ struct lxfb_par *par = info->par;
+
+ if (lx_power_on == 1)
+ return 0;
+
+ lx_restore_regs(info, &saved_regs);
+ writel(0, par->dc_regs + DC_UNLOCK);
+
+ lx_power_on = 1;
+ return 0;
+}
diff --git a/drivers/video/geode/video_gx.c b/drivers/video/geode/video_gx.c
index 7f3f18d..e282e74 100644
--- a/drivers/video/geode/video_gx.c
+++ b/drivers/video/geode/video_gx.c
@@ -16,10 +16,14 @@
#include <asm/io.h>
#include <asm/delay.h>
#include <asm/msr.h>
+#include <asm/olpc.h>
#include "geodefb.h"
#include "video_gx.h"
+#include "display_gx.h"
+/* This structure is used to store the saved registers during suspend */
+static struct geoderegs gx_saved_regs;
/*
* Tables of register settings for various DOTCLKs.
@@ -58,7 +62,7 @@ static const struct gx_pll_entry gx_pll_table_48MHz[] = {
{ 13888, POSTDIV3, 0x000007E1 }, /* 72.0000 */
{ 13426, PREMULT2, 0x00000F4A }, /* 74.4810 */
{ 13333, 0, 0x00000052 }, /* 75.0000 */
- { 12698, 0, 0x00000056 }, /* 78.7500 */
+ { 12698, 0, 0x00000056 }, /* 78.7500 */
{ 12500, POSTDIV3|PREMULT2, 0x00000709 }, /* 80.0000 */
{ 11135, PREMULT2, 0x00000262 }, /* 89.8000 */
{ 10582, 0, 0x000002D2 }, /* 94.5000 */
@@ -117,8 +121,9 @@ static const struct gx_pll_entry gx_pll_table_14MHz[] = {
{ 4357, 0, 0x0000057D }, /* 229.5000 */
};
-static void gx_set_dclk_frequency(struct fb_info *info)
+void gx_set_dclk_frequency(struct fb_info *info)
{
+ struct geodefb_par *par = info->par;
const struct gx_pll_entry *pll_table;
int pll_table_len;
int i, best_i;
@@ -173,115 +178,169 @@ static void gx_set_dclk_frequency(struct fb_info *info)
do {
rdmsrl(MSR_GLCP_DOTPLL, dotpll);
} while (timeout-- && !(dotpll & MSR_GLCP_DOTPLL_LOCK));
+
+ par->curdclk = pll_table[best_i].dotpll_value;
}
-static void
-gx_configure_tft(struct fb_info *info)
+/* Find out the current clock - we will use this information to avoid
+ re-programming it if we don't need to */
+
+unsigned int gx_get_dclk(struct fb_info *info)
{
- struct geodefb_par *par = info->par;
- unsigned long val;
- unsigned long fp;
+ const struct gx_pll_entry *pll_table;
+ int pll_table_len;
+ u64 dotpll;
+ int i;
- /* Set up the DF pad select MSR */
+ if (cpu_data->x86_mask == 1) {
+ pll_table = gx_pll_table_14MHz;
+ pll_table_len = ARRAY_SIZE(gx_pll_table_14MHz);
+ } else {
+ pll_table = gx_pll_table_48MHz;
+ pll_table_len = ARRAY_SIZE(gx_pll_table_48MHz);
+ }
- rdmsrl(GX_VP_MSR_PAD_SELECT, val);
- val &= ~GX_VP_PAD_SELECT_MASK;
- val |= GX_VP_PAD_SELECT_TFT;
- wrmsrl(GX_VP_MSR_PAD_SELECT, val);
+ rdmsrl(MSR_GLCP_DOTPLL, dotpll);
- /* Turn off the panel */
+ for(i = 0; i < pll_table_len; i++) {
+ if (pll_table[i].dotpll_value == (u32) (dotpll >> 32))
+ break;
+ }
- fp = readl(par->vid_regs + GX_FP_PM);
- fp &= ~GX_FP_PM_P;
- writel(fp, par->vid_regs + GX_FP_PM);
+ return (i == pll_table_len) ? 0 : pll_table[i].pixclock;
+}
+
+
+#define CMP(val, mask, res) (((val) & (mask)) == (res))
- /* Set timing 1 */
+static void
+gx_configure_tft(struct fb_info *info) {
- fp = readl(par->vid_regs + GX_FP_PT1);
- fp &= GX_FP_PT1_VSIZE_MASK;
- fp |= info->var.yres << GX_FP_PT1_VSIZE_SHIFT;
- writel(fp, par->vid_regs + GX_FP_PT1);
+ struct geodefb_par *par = info->par;
+ u32 val, fp = 0, fp1, fp2, sync = 0;
- /* Timing 2 */
- /* Set bits that are always on for TFT */
+ /* Set up the DF pad select MSR */
- fp = 0x0F100000;
+ rdmsrl(GX_VP_MSR_PAD_SELECT, val);
- /* Add sync polarity */
+ if ((val & GX_VP_PAD_SELECT_MASK) != GX_VP_PAD_SELECT_TFT) {
+ val &= ~GX_VP_PAD_SELECT_MASK;
+ val |= GX_VP_PAD_SELECT_TFT;
+ wrmsrl(GX_VP_MSR_PAD_SELECT, val);
+ }
if (!(info->var.sync & FB_SYNC_VERT_HIGH_ACT))
- fp |= GX_FP_PT2_VSP;
+ sync |= GX_FP_PT2_VSP;
if (!(info->var.sync & FB_SYNC_HOR_HIGH_ACT))
- fp |= GX_FP_PT2_HSP;
+ sync |= GX_FP_PT2_HSP;
- writel(fp, par->vid_regs + GX_FP_PT2);
+ /* We only need to turn off the panel if something changed */
- /* Set the dither control */
- writel(0x70, par->vid_regs + GX_FP_DFC);
+ fp1 = readl(par->vid_regs + GX_FP_PT1);
+ fp2 = readl(par->vid_regs + GX_FP_PT2);
+
+ if (!CMP(fp1, GX_FP_PT1_VSIZE_MASK, info->var.yres << GX_FP_PT1_VSIZE_SHIFT) ||
+ (fp2 != (0x0F100000 | sync))) {
- /* Enable the FP data and power (in case the BIOS didn't) */
+ /* Turn off the panel */
- fp = readl(par->vid_regs + GX_DCFG);
- fp |= GX_DCFG_FP_PWR_EN | GX_DCFG_FP_DATA_EN;
- writel(fp, par->vid_regs + GX_DCFG);
+#ifdef NOTUSED
+ /* Do we really need to turn off the panel? */
+ /* Possibly - we have a glitch somewhere */
- /* Unblank the panel */
+ fp = readl(par->vid_regs + GX_FP_PM);
+ fp &= ~GX_FP_PM_P;
+ writel(fp, par->vid_regs + GX_FP_PM);
+#endif
+
+ /* Timing 1 */
+ fp1 &= GX_FP_PT1_VSIZE_MASK;
+ fp1 |= info->var.yres << GX_FP_PT1_VSIZE_SHIFT;
+ writel(fp, par->vid_regs + GX_FP_PT1);
+
+ /* Timing 2 */
+ writel(0x0F100000 | sync, par->vid_regs + GX_FP_PT2);
+ }
+
+ /* Set the dither control */
+ if (readl(par->vid_regs + GX_FP_DFC) != 0x70) {
+ writel(0x70, par->vid_regs + GX_FP_DFC);
+ }
+
+ /* Turn on the panel */
fp = readl(par->vid_regs + GX_FP_PM);
- fp |= GX_FP_PM_P;
- writel(fp, par->vid_regs + GX_FP_PM);
+
+ if (!(fp & 0x09))
+ writel(fp | GX_FP_PM_P, par->vid_regs + GX_FP_PM);
}
+#define DCFG_DEFAULT_VAL GX_DCFG_CRT_SYNC_SKW_DFLT | GX_DCFG_HSYNC_EN | GX_DCFG_VSYNC_EN | \
+GX_DCFG_CRT_EN | GX_DCFG_DAC_BL_EN
+
static void gx_configure_display(struct fb_info *info)
{
struct geodefb_par *par = info->par;
- u32 dcfg, misc;
+ u32 dcfg, misc, sync = 0;
/* Set up the MISC register */
-
misc = readl(par->vid_regs + GX_MISC);
- /* Power up the DAC */
- misc &= ~(GX_MISC_A_PWRDN | GX_MISC_DAC_PWRDN);
+ /* We leave gamma enabled if it was already enabled.
+ Although the hardware enables it without setting
+ up the gamma table, the BIOS or bootloader ought
+ to have either disabled it or loaded a table by now */
- /* Disable gamma correction */
- misc |= GX_MISC_GAM_EN;
- writel(misc, par->vid_regs + GX_MISC);
- /* Write the display configuration */
- dcfg = readl(par->vid_regs + GX_DCFG);
+ if (par->enable_crt) {
+ /* Power up the CRT DACs */
+ if (misc & ( GX_MISC_A_PWRDN | GX_MISC_DAC_PWRDN)) {
+ misc &= ~(GX_MISC_A_PWRDN | GX_MISC_DAC_PWRDN);
+ writel(misc, par->vid_regs + GX_MISC);
+ }
- /* Disable hsync and vsync */
- dcfg &= ~(GX_DCFG_VSYNC_EN | GX_DCFG_HSYNC_EN);
- writel(dcfg, par->vid_regs + GX_DCFG);
+ if (!(info->var.sync & FB_SYNC_HOR_HIGH_ACT))
+ sync |= GX_DCFG_CRT_HSYNC_POL;
- /* Clear bits from existing mode. */
- dcfg &= ~(GX_DCFG_CRT_SYNC_SKW_MASK
- | GX_DCFG_CRT_HSYNC_POL | GX_DCFG_CRT_VSYNC_POL
- | GX_DCFG_VSYNC_EN | GX_DCFG_HSYNC_EN);
+ if (!(info->var.sync & FB_SYNC_VERT_HIGH_ACT))
+ sync |= GX_DCFG_CRT_VSYNC_POL;
+ }
+ else {
+ /* Turn off the CRT DACs in FP mode - we don't need them */
+ if ((misc & (GX_MISC_A_PWRDN | GX_MISC_DAC_PWRDN))) {
+ misc |= (GX_MISC_A_PWRDN | GX_MISC_DAC_PWRDN);
+ writel(misc, par->vid_regs + GX_MISC);
+ }
+ }
- /* Set default sync skew. */
- dcfg |= GX_DCFG_CRT_SYNC_SKW_DFLT;
+ /* Write the display configuration */
+ dcfg = readl(par->vid_regs + GX_DCFG);
- /* Enable hsync and vsync. */
- dcfg |= GX_DCFG_HSYNC_EN | GX_DCFG_VSYNC_EN;
+ if (!CMP(dcfg, DCFG_DEFAULT_VAL | GX_DCFG_CRT_HSYNC_POL | GX_DCFG_CRT_VSYNC_POL,
+ DCFG_DEFAULT_VAL | sync)) {
- /* Sync polarities. */
- if (info->var.sync & FB_SYNC_HOR_HIGH_ACT)
- dcfg |= GX_DCFG_CRT_HSYNC_POL;
- if (info->var.sync & FB_SYNC_VERT_HIGH_ACT)
- dcfg |= GX_DCFG_CRT_VSYNC_POL;
+ /* Disable hsync and vsync */
+ dcfg &= ~(GX_DCFG_VSYNC_EN | GX_DCFG_HSYNC_EN);
+ writel(dcfg, par->vid_regs + GX_DCFG);
- /* Enable the display logic */
- /* Set up the DACS to blank normally */
+ /* Clear bits from existing mode. */
+ dcfg &= ~(GX_DCFG_CRT_SYNC_SKW_MASK
+ | GX_DCFG_CRT_HSYNC_POL | GX_DCFG_CRT_VSYNC_POL
+ | GX_DCFG_VSYNC_EN | GX_DCFG_HSYNC_EN);
- dcfg |= GX_DCFG_CRT_EN | GX_DCFG_DAC_BL_EN;
+ /* Set default sync skew. */
+ dcfg |= GX_DCFG_CRT_SYNC_SKW_DFLT;
- /* Enable the external DAC VREF? */
+ /* Enable hsync and vsync. */
+ dcfg |= GX_DCFG_HSYNC_EN | GX_DCFG_VSYNC_EN;
- writel(dcfg, par->vid_regs + GX_DCFG);
+ /* Enable the display logic */
+ dcfg |= GX_DCFG_CRT_EN | GX_DCFG_DAC_BL_EN;
+
+ writel(dcfg, par->vid_regs + GX_DCFG);
+ }
/* Set up the flat panel (if it is enabled) */
@@ -289,6 +348,100 @@ static void gx_configure_display(struct fb_info *info)
gx_configure_tft(info);
}
+int gxfb_powerdown(struct fb_info *info)
+{
+ struct geodefb_par *par = info->par;
+
+ /* We're already suspended */
+
+ if (par->state != FB_POWER_STATE_ON)
+ return 0;
+
+ /* Save the registers */
+ gx_save_regs(info, &gx_saved_regs);
+
+ /* Shut down the engine */
+
+ writel(gx_saved_regs.vp.r.vcfg & ~0x01, par->vid_regs + GX_VCFG);
+ writel(gx_saved_regs.vp.r.dcfg & ~0x0F, par->vid_regs + GX_DCFG);
+
+ /* Turn off the flat panel unless we are attached to a DCON */
+ if (!olpc_has_dcon())
+ writel(gx_saved_regs.fp.r.pm & ~GX_FP_PM_P, par->vid_regs + GX_FP_PM);
+
+ writel(0x4758, par->dc_regs + DC_UNLOCK);
+
+ writel(gx_saved_regs.dc.r.gcfg & ~0x0F,
+ par->dc_regs + DC_GENERAL_CFG);
+
+ writel(gx_saved_regs.dc.r.dcfg & ~0x19,
+ par->dc_regs + DC_DISPLAY_CFG);
+
+ par->state = FB_POWER_STATE_SUSPEND;
+
+ return 0;
+}
+
+int gxfb_powerup(struct fb_info *info)
+{
+ struct geodefb_par *par = info->par;
+ u32 val;
+
+ if (par->state == FB_POWER_STATE_SUSPEND) {
+
+ writel(gx_saved_regs.dc.r.dcfg,
+ par->dc_regs + DC_DISPLAY_CFG);
+
+ writel(gx_saved_regs.vp.r.vcfg, par->vid_regs + GX_VCFG);
+ writel(gx_saved_regs.vp.r.dcfg, par->vid_regs + GX_DCFG);
+
+ val = readl(par->vid_regs + GX_FP_PM);
+
+ /* power up the panel if it needs it; we don't always power it down */
+ if (!(val & 0x09)) {
+ writel(gx_saved_regs.fp.r.pm, par->vid_regs + GX_FP_PM);
+ mdelay(64);
+ }
+ }
+
+ /* If the panel is currently on its way up, then wait up to 100ms
+ for it */
+
+ if (readl(par->vid_regs + GX_FP_PM) & 0x08) {
+ int i;
+
+ for(i = 0; i < 10; i++) {
+ if (readl(par->vid_regs + GX_FP_PM) & 0x01)
+ break;
+
+ mdelay(10);
+ }
+
+ if (i == 10)
+ printk(KERN_ERR "gxfb: Panel power up timed out\n");
+ }
+
+ if (par->state == FB_POWER_STATE_ON)
+ return 0;
+
+ switch(par->state) {
+ case FB_POWER_STATE_OFF:
+ gx_restore_regs(info, &gx_saved_regs);
+ break;
+
+ case FB_POWER_STATE_SUSPEND:
+ /* Do this because it will turn on the FIFO which will
+ start the line count */
+ writel(gx_saved_regs.dc.r.gcfg,
+ par->dc_regs + DC_GENERAL_CFG);
+ writel(0x0, par->dc_regs + DC_UNLOCK);
+ break;
+ }
+
+ par->state = FB_POWER_STATE_ON;
+ return 0;
+}
+
static int gx_blank_display(struct fb_info *info, int blank_mode)
{
struct geodefb_par *par = info->par;
@@ -315,6 +468,7 @@ static int gx_blank_display(struct fb_info *info, int blank_mode)
default:
return -EINVAL;
}
+
dcfg = readl(par->vid_regs + GX_DCFG);
dcfg &= ~(GX_DCFG_DAC_BL_EN
| GX_DCFG_HSYNC_EN | GX_DCFG_VSYNC_EN);
@@ -326,7 +480,7 @@ static int gx_blank_display(struct fb_info *info, int blank_mode)
dcfg |= GX_DCFG_VSYNC_EN;
writel(dcfg, par->vid_regs + GX_DCFG);
- /* Power on/off flat panel. */
+ /* Power on/off flat panel */
if (par->enable_crt == 0) {
fp_pm = readl(par->vid_regs + GX_FP_PM);
@@ -340,8 +494,37 @@ static int gx_blank_display(struct fb_info *info, int blank_mode)
return 0;
}
+extern struct fb_info *gxfb_info;
+
+/* This function controls the flatpanel power sequencing - this is used
+ by the OLPC power management engine to enable the FP sequencing much
+ earlier in the resume process
+*/
+
+void gxfb_flatpanel_control(int state)
+{
+ struct geodefb_par *par = gxfb_info->par;
+ u32 val, fp = readl(par->vid_regs + GX_FP_PM);
+ val = fp;
+
+ /* Turn on the panel if it isn't aleady */
+
+ if (state) {
+ if (!(val & 0x01))
+ val |= GX_FP_PM_P;
+ }
+ else {
+ if (!(val & 0x02))
+ val &= ~GX_FP_PM_P;
+ }
+
+ if (val != fp)
+ writel(val, par->vid_regs + GX_FP_PM);
+}
+
struct geode_vid_ops gx_vid_ops = {
.set_dclk = gx_set_dclk_frequency,
+ .get_dclk = gx_get_dclk,
.configure_display = gx_configure_display,
.blank_display = gx_blank_display,
};
diff --git a/drivers/video/geode/video_gx.h b/drivers/video/geode/video_gx.h
index ce28d8f..c57b36b 100644
--- a/drivers/video/geode/video_gx.h
+++ b/drivers/video/geode/video_gx.h
@@ -11,6 +11,8 @@
#ifndef __VIDEO_GX_H__
#define __VIDEO_GX_H__
+#include "geode_regs.h"
+
extern struct geode_vid_ops gx_vid_ops;
/* GX Flatpanel control MSR */
@@ -20,6 +22,8 @@ extern struct geode_vid_ops gx_vid_ops;
/* Geode GX video processor registers */
+#define GX_VCFG 0x0000
+
#define GX_DCFG 0x0008
# define GX_DCFG_CRT_EN 0x00000001
# define GX_DCFG_HSYNC_EN 0x00000002
@@ -42,6 +46,14 @@ extern struct geode_vid_ops gx_vid_ops;
#define GX_MISC_DAC_PWRDN 0x00000400
#define GX_MISC_A_PWRDN 0x00000800
+/* Gamma correction RAM - address and data registers */
+
+#define GX_GAR 0x038
+#define GX_GDR 0x040
+
+#define GXFB_GAMMA_DWORDS 256 /* number of dwords in the gamma ram */
+#define GXFB_GAMMA_SIZE (GXFB_GAMMA_DWORDS * sizeof(unsigned int))
+
/* Geode GX flat panel display control registers */
#define GX_FP_PT1 0x0400
@@ -69,4 +81,13 @@ extern struct geode_vid_ops gx_vid_ops;
# define MSR_GLCP_DOTPLL_BYPASS (0x0000000000008000ull)
# define MSR_GLCP_DOTPLL_LOCK (0x0000000002000000ull)
+int gxfb_powerdown(struct fb_info *info);
+int gxfb_powerup(struct fb_info *info);
+
+void gx_set_dclk_frequency(struct fb_info *info);
+unsigned int gx_get_dclk(struct fb_info *info);
+
+void gx_save_regs(struct fb_info *info, struct geoderegs *regs);
+void gx_restore_regs(struct fb_info *info, struct geoderegs *regs);
+
#endif /* !__VIDEO_GX_H__ */
diff --git a/drivers/video/modedb.c b/drivers/video/modedb.c
index 3741ad7..49f6db5 100644
--- a/drivers/video/modedb.c
+++ b/drivers/video/modedb.c
@@ -33,6 +33,8 @@ const char *global_mode_option;
* Standard video mode definitions (taken from XFree86)
*/
+#define DEFAULT_MODEDB_INDEX 0
+
static const struct fb_videomode modedb[] = {
{
/* 640x400 @ 70 Hz, 31.5 kHz hsync */
@@ -504,7 +506,8 @@ int fb_find_mode(struct fb_var_screeninfo *var,
}
if (!default_mode)
- default_mode = &db[0];
+ default_mode = (db == modedb) ?
+ &modedb[DEFAULT_MODEDB_INDEX] : &db[0];
if (!default_bpp)
default_bpp = 8;
diff --git a/fs/Kconfig b/fs/Kconfig
index f9eed6d..6fa3ea2 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -999,6 +999,23 @@ config HUGETLBFS
config HUGETLB_PAGE
def_bool HUGETLBFS
+config PROMFS_FS
+ tristate "PromFS IEEE 1275 file system support"
+ depends on SPARC || PPC || OLPC
+ help
+ PromFS is a file system interface to various IEEE-1275 compatible
+ firmwares. If you have such a firmware (Sparc64, PowerPC, and
+ some other architectures and embedded systems have such firmwares,
+ with names like "OpenBoot (tm)" and "OpenFirmware"), say Y here
+ to be able to access the firmware's device-tree from Linux.
+
+ The firmware device-tree is available as a virtual file system,
+ can be mounted under /prom with the command "mount -t promfs
+ none /prom".
+
+ To compile PromFS support as a module, choose M here; the module
+ will be called promfs. If unsure, choose M.
+
config RAMFS
bool
default y
@@ -1225,6 +1242,14 @@ config JFFS2_FS_WRITEBUFFER
- NOR flash with transparent ECC
- DataFlash
+config JFFS2_FS_WBUF_VERIFY
+ bool "Verify JFFS2 write-buffer reads"
+ depends on JFFS2_FS_WRITEBUFFER
+ default n
+ help
+ This causes JFFS2 to read back every page written through the
+ write-buffer, and check for errors.
+
config JFFS2_SUMMARY
bool "JFFS2 summary support (EXPERIMENTAL)"
depends on JFFS2_FS && EXPERIMENTAL
@@ -1295,52 +1320,52 @@ config JFFS2_ZLIB
select ZLIB_DEFLATE
depends on JFFS2_FS
default y
- help
- Zlib is designed to be a free, general-purpose, legally unencumbered,
- lossless data-compression library for use on virtually any computer
- hardware and operating system. See <http://www.gzip.org/zlib/> for
- further information.
+ help
+ Zlib is designed to be a free, general-purpose, legally unencumbered,
+ lossless data-compression library for use on virtually any computer
+ hardware and operating system. See <http://www.gzip.org/zlib/> for
+ further information.
- Say 'Y' if unsure.
+ Say 'Y' if unsure.
config JFFS2_RTIME
bool "JFFS2 RTIME compression support" if JFFS2_COMPRESSION_OPTIONS
depends on JFFS2_FS
default y
- help
- Rtime does manage to recompress already-compressed data. Say 'Y' if unsure.
+ help
+ Rtime does manage to recompress already-compressed data. Say 'Y' if unsure.
config JFFS2_RUBIN
bool "JFFS2 RUBIN compression support" if JFFS2_COMPRESSION_OPTIONS
depends on JFFS2_FS
default n
- help
- RUBINMIPS and DYNRUBIN compressors. Say 'N' if unsure.
+ help
+ RUBINMIPS and DYNRUBIN compressors. Say 'N' if unsure.
choice
- prompt "JFFS2 default compression mode" if JFFS2_COMPRESSION_OPTIONS
- default JFFS2_CMODE_PRIORITY
- depends on JFFS2_FS
- help
- You can set here the default compression mode of JFFS2 from
- the available compression modes. Don't touch if unsure.
+ prompt "JFFS2 default compression mode" if JFFS2_COMPRESSION_OPTIONS
+ default JFFS2_CMODE_PRIORITY
+ depends on JFFS2_FS
+ help
+ You can set here the default compression mode of JFFS2 from
+ the available compression modes. Don't touch if unsure.
config JFFS2_CMODE_NONE
- bool "no compression"
- help
- Uses no compression.
+ bool "no compression"
+ help
+ Uses no compression.
config JFFS2_CMODE_PRIORITY
- bool "priority"
- help
- Tries the compressors in a predefined order and chooses the first
- successful one.
+ bool "priority"
+ help
+ Tries the compressors in a predefined order and chooses the first
+ successful one.
config JFFS2_CMODE_SIZE
- bool "size (EXPERIMENTAL)"
- help
- Tries all compressors and chooses the one which has the smallest
- result.
+ bool "size (EXPERIMENTAL)"
+ help
+ Tries all compressors and chooses the one which has the smallest
+ result.
endchoice
diff --git a/fs/Makefile b/fs/Makefile
index 720c29d..61f1a4d 100644
--- a/fs/Makefile
+++ b/fs/Makefile
@@ -108,6 +108,7 @@ obj-$(CONFIG_ADFS_FS) += adfs/
obj-$(CONFIG_FUSE_FS) += fuse/
obj-$(CONFIG_UDF_FS) += udf/
obj-$(CONFIG_SUN_OPENPROMFS) += openpromfs/
+obj-$(CONFIG_PROMFS_FS) += promfs/
obj-$(CONFIG_JFS_FS) += jfs/
obj-$(CONFIG_XFS_FS) += xfs/
obj-$(CONFIG_9P_FS) += 9p/
diff --git a/fs/jffs2/background.c b/fs/jffs2/background.c
index 504643f..d568ae8 100644
--- a/fs/jffs2/background.c
+++ b/fs/jffs2/background.c
@@ -23,8 +23,8 @@ static int jffs2_garbage_collect_thread(void *);
void jffs2_garbage_collect_trigger(struct jffs2_sb_info *c)
{
spin_lock(&c->erase_completion_lock);
- if (c->gc_task && jffs2_thread_should_wake(c))
- send_sig(SIGHUP, c->gc_task, 1);
+ if (c->gc_task && jffs2_thread_should_wake(c))
+ send_sig(SIGHUP, c->gc_task, 1);
spin_unlock(&c->erase_completion_lock);
}
diff --git a/fs/jffs2/compr.c b/fs/jffs2/compr.c
index 485d065..d90ca05 100644
--- a/fs/jffs2/compr.c
+++ b/fs/jffs2/compr.c
@@ -5,7 +5,7 @@
* Created by Arjan van de Ven <arjanv@redhat.com>
*
* Copyright © 2004 Ferenc Havasi <havasi@inf.u-szeged.hu>,
- * University of Szeged, Hungary
+ * University of Szeged, Hungary
*
* For licensing information, see the file 'LICENCE' in this directory.
*
@@ -43,121 +43,122 @@ static uint32_t none_stat_compr_blocks=0,none_stat_decompr_blocks=0,none_stat_co
* *datalen accordingly to show the amount of data which were compressed.
*/
uint16_t jffs2_compress(struct jffs2_sb_info *c, struct jffs2_inode_info *f,
- unsigned char *data_in, unsigned char **cpage_out,
- uint32_t *datalen, uint32_t *cdatalen)
+ unsigned char *data_in, unsigned char **cpage_out,
+ uint32_t *datalen, uint32_t *cdatalen)
{
int ret = JFFS2_COMPR_NONE;
- int compr_ret;
- struct jffs2_compressor *this, *best=NULL;
- unsigned char *output_buf = NULL, *tmp_buf;
- uint32_t orig_slen, orig_dlen;
- uint32_t best_slen=0, best_dlen=0;
+ int compr_ret;
+ struct jffs2_compressor *this, *best=NULL;
+ unsigned char *output_buf = NULL, *tmp_buf;
+ uint32_t orig_slen, orig_dlen;
+ uint32_t best_slen=0, best_dlen=0;
- switch (jffs2_compression_mode) {
- case JFFS2_COMPR_MODE_NONE:
- break;
- case JFFS2_COMPR_MODE_PRIORITY:
- output_buf = kmalloc(*cdatalen,GFP_KERNEL);
- if (!output_buf) {
- printk(KERN_WARNING "JFFS2: No memory for compressor allocation. Compression failed.\n");
- goto out;
- }
- orig_slen = *datalen;
- orig_dlen = *cdatalen;
- spin_lock(&jffs2_compressor_list_lock);
- list_for_each_entry(this, &jffs2_compressor_list, list) {
- /* Skip decompress-only backwards-compatibility and disabled modules */
- if ((!this->compress)||(this->disabled))
- continue;
+ switch (jffs2_compression_mode) {
+ case JFFS2_COMPR_MODE_NONE:
+ break;
+ case JFFS2_COMPR_MODE_PRIORITY:
+ output_buf = kmalloc(*cdatalen,GFP_KERNEL);
+ if (!output_buf) {
+ printk(KERN_WARNING "JFFS2: No memory for compressor allocation. Compression failed.\n");
+ goto out;
+ }
+ orig_slen = *datalen;
+ orig_dlen = *cdatalen;
+ spin_lock(&jffs2_compressor_list_lock);
+ list_for_each_entry(this, &jffs2_compressor_list, list) {
+ /* Skip decompress-only backwards-compatibility and disabled modules */
+ if ((!this->compress)||(this->disabled))
+ continue;
- this->usecount++;
- spin_unlock(&jffs2_compressor_list_lock);
- *datalen = orig_slen;
- *cdatalen = orig_dlen;
- compr_ret = this->compress(data_in, output_buf, datalen, cdatalen, NULL);
- spin_lock(&jffs2_compressor_list_lock);
- this->usecount--;
- if (!compr_ret) {
- ret = this->compr;
- this->stat_compr_blocks++;
- this->stat_compr_orig_size += *datalen;
- this->stat_compr_new_size += *cdatalen;
- break;
- }
- }
- spin_unlock(&jffs2_compressor_list_lock);
- if (ret == JFFS2_COMPR_NONE) kfree(output_buf);
- break;
- case JFFS2_COMPR_MODE_SIZE:
- orig_slen = *datalen;
- orig_dlen = *cdatalen;
- spin_lock(&jffs2_compressor_list_lock);
- list_for_each_entry(this, &jffs2_compressor_list, list) {
- /* Skip decompress-only backwards-compatibility and disabled modules */
- if ((!this->compress)||(this->disabled))
- continue;
- /* Allocating memory for output buffer if necessary */
- if ((this->compr_buf_size<orig_dlen)&&(this->compr_buf)) {
- spin_unlock(&jffs2_compressor_list_lock);
- kfree(this->compr_buf);
- spin_lock(&jffs2_compressor_list_lock);
- this->compr_buf_size=0;
- this->compr_buf=NULL;
- }
- if (!this->compr_buf) {
- spin_unlock(&jffs2_compressor_list_lock);
- tmp_buf = kmalloc(orig_dlen,GFP_KERNEL);
- spin_lock(&jffs2_compressor_list_lock);
- if (!tmp_buf) {
- printk(KERN_WARNING "JFFS2: No memory for compressor allocation. (%d bytes)\n",orig_dlen);
- continue;
- }
- else {
- this->compr_buf = tmp_buf;
- this->compr_buf_size = orig_dlen;
- }
- }
- this->usecount++;
- spin_unlock(&jffs2_compressor_list_lock);
- *datalen = orig_slen;
- *cdatalen = orig_dlen;
- compr_ret = this->compress(data_in, this->compr_buf, datalen, cdatalen, NULL);
- spin_lock(&jffs2_compressor_list_lock);
- this->usecount--;
- if (!compr_ret) {
- if ((!best_dlen)||(best_dlen>*cdatalen)) {
- best_dlen = *cdatalen;
- best_slen = *datalen;
- best = this;
- }
- }
- }
- if (best_dlen) {
- *cdatalen = best_dlen;
- *datalen = best_slen;
- output_buf = best->compr_buf;
- best->compr_buf = NULL;
- best->compr_buf_size = 0;
- best->stat_compr_blocks++;
- best->stat_compr_orig_size += best_slen;
- best->stat_compr_new_size += best_dlen;
- ret = best->compr;
- }
- spin_unlock(&jffs2_compressor_list_lock);
- break;
- default:
- printk(KERN_ERR "JFFS2: unknow compression mode.\n");
- }
+ this->usecount++;
+ spin_unlock(&jffs2_compressor_list_lock);
+ *datalen = orig_slen;
+ *cdatalen = orig_dlen;
+ compr_ret = this->compress(data_in, output_buf, datalen, cdatalen, NULL);
+ spin_lock(&jffs2_compressor_list_lock);
+ this->usecount--;
+ if (!compr_ret) {
+ ret = this->compr;
+ this->stat_compr_blocks++;
+ this->stat_compr_orig_size += *datalen;
+ this->stat_compr_new_size += *cdatalen;
+ break;
+ }
+ }
+ spin_unlock(&jffs2_compressor_list_lock);
+ if (ret == JFFS2_COMPR_NONE)
+ kfree(output_buf);
+ break;
+ case JFFS2_COMPR_MODE_SIZE:
+ orig_slen = *datalen;
+ orig_dlen = *cdatalen;
+ spin_lock(&jffs2_compressor_list_lock);
+ list_for_each_entry(this, &jffs2_compressor_list, list) {
+ /* Skip decompress-only backwards-compatibility and disabled modules */
+ if ((!this->compress)||(this->disabled))
+ continue;
+ /* Allocating memory for output buffer if necessary */
+ if ((this->compr_buf_size<orig_dlen)&&(this->compr_buf)) {
+ spin_unlock(&jffs2_compressor_list_lock);
+ kfree(this->compr_buf);
+ spin_lock(&jffs2_compressor_list_lock);
+ this->compr_buf_size=0;
+ this->compr_buf=NULL;
+ }
+ if (!this->compr_buf) {
+ spin_unlock(&jffs2_compressor_list_lock);
+ tmp_buf = kmalloc(orig_dlen,GFP_KERNEL);
+ spin_lock(&jffs2_compressor_list_lock);
+ if (!tmp_buf) {
+ printk(KERN_WARNING "JFFS2: No memory for compressor allocation. (%d bytes)\n",orig_dlen);
+ continue;
+ }
+ else {
+ this->compr_buf = tmp_buf;
+ this->compr_buf_size = orig_dlen;
+ }
+ }
+ this->usecount++;
+ spin_unlock(&jffs2_compressor_list_lock);
+ *datalen = orig_slen;
+ *cdatalen = orig_dlen;
+ compr_ret = this->compress(data_in, this->compr_buf, datalen, cdatalen, NULL);
+ spin_lock(&jffs2_compressor_list_lock);
+ this->usecount--;
+ if (!compr_ret) {
+ if ((!best_dlen)||(best_dlen>*cdatalen)) {
+ best_dlen = *cdatalen;
+ best_slen = *datalen;
+ best = this;
+ }
+ }
+ }
+ if (best_dlen) {
+ *cdatalen = best_dlen;
+ *datalen = best_slen;
+ output_buf = best->compr_buf;
+ best->compr_buf = NULL;
+ best->compr_buf_size = 0;
+ best->stat_compr_blocks++;
+ best->stat_compr_orig_size += best_slen;
+ best->stat_compr_new_size += best_dlen;
+ ret = best->compr;
+ }
+ spin_unlock(&jffs2_compressor_list_lock);
+ break;
+ default:
+ printk(KERN_ERR "JFFS2: unknow compression mode.\n");
+ }
out:
- if (ret == JFFS2_COMPR_NONE) {
- *cpage_out = data_in;
- *datalen = *cdatalen;
- none_stat_compr_blocks++;
- none_stat_compr_size += *datalen;
- }
- else {
- *cpage_out = output_buf;
- }
+ if (ret == JFFS2_COMPR_NONE) {
+ *cpage_out = data_in;
+ *datalen = *cdatalen;
+ none_stat_compr_blocks++;
+ none_stat_compr_size += *datalen;
+ }
+ else {
+ *cpage_out = output_buf;
+ }
return ret;
}
@@ -165,8 +166,8 @@ int jffs2_decompress(struct jffs2_sb_info *c, struct jffs2_inode_info *f,
uint16_t comprtype, unsigned char *cdata_in,
unsigned char *data_out, uint32_t cdatalen, uint32_t datalen)
{
- struct jffs2_compressor *this;
- int ret;
+ struct jffs2_compressor *this;
+ int ret;
/* Older code had a bug where it would write non-zero 'usercompr'
fields. Deal with it. */
@@ -177,32 +178,32 @@ int jffs2_decompress(struct jffs2_sb_info *c, struct jffs2_inode_info *f,
case JFFS2_COMPR_NONE:
/* This should be special-cased elsewhere, but we might as well deal with it */
memcpy(data_out, cdata_in, datalen);
- none_stat_decompr_blocks++;
+ none_stat_decompr_blocks++;
break;
case JFFS2_COMPR_ZERO:
memset(data_out, 0, datalen);
break;
default:
- spin_lock(&jffs2_compressor_list_lock);
- list_for_each_entry(this, &jffs2_compressor_list, list) {
- if (comprtype == this->compr) {
- this->usecount++;
- spin_unlock(&jffs2_compressor_list_lock);
- ret = this->decompress(cdata_in, data_out, cdatalen, datalen, NULL);
- spin_lock(&jffs2_compressor_list_lock);
- if (ret) {
- printk(KERN_WARNING "Decompressor \"%s\" returned %d\n", this->name, ret);
- }
- else {
- this->stat_decompr_blocks++;
- }
- this->usecount--;
- spin_unlock(&jffs2_compressor_list_lock);
- return ret;
- }
- }
+ spin_lock(&jffs2_compressor_list_lock);
+ list_for_each_entry(this, &jffs2_compressor_list, list) {
+ if (comprtype == this->compr) {
+ this->usecount++;
+ spin_unlock(&jffs2_compressor_list_lock);
+ ret = this->decompress(cdata_in, data_out, cdatalen, datalen, NULL);
+ spin_lock(&jffs2_compressor_list_lock);
+ if (ret) {
+ printk(KERN_WARNING "Decompressor \"%s\" returned %d\n", this->name, ret);
+ }
+ else {
+ this->stat_decompr_blocks++;
+ }
+ this->usecount--;
+ spin_unlock(&jffs2_compressor_list_lock);
+ return ret;
+ }
+ }
printk(KERN_WARNING "JFFS2 compression type 0x%02x not available.\n", comprtype);
- spin_unlock(&jffs2_compressor_list_lock);
+ spin_unlock(&jffs2_compressor_list_lock);
return -EIO;
}
return 0;
@@ -210,108 +211,108 @@ int jffs2_decompress(struct jffs2_sb_info *c, struct jffs2_inode_info *f,
int jffs2_register_compressor(struct jffs2_compressor *comp)
{
- struct jffs2_compressor *this;
+ struct jffs2_compressor *this;
- if (!comp->name) {
- printk(KERN_WARNING "NULL compressor name at registering JFFS2 compressor. Failed.\n");
- return -1;
- }
- comp->compr_buf_size=0;
- comp->compr_buf=NULL;
- comp->usecount=0;
- comp->stat_compr_orig_size=0;
- comp->stat_compr_new_size=0;
- comp->stat_compr_blocks=0;
- comp->stat_decompr_blocks=0;
- D1(printk(KERN_DEBUG "Registering JFFS2 compressor \"%s\"\n", comp->name));
+ if (!comp->name) {
+ printk(KERN_WARNING "NULL compressor name at registering JFFS2 compressor. Failed.\n");
+ return -1;
+ }
+ comp->compr_buf_size=0;
+ comp->compr_buf=NULL;
+ comp->usecount=0;
+ comp->stat_compr_orig_size=0;
+ comp->stat_compr_new_size=0;
+ comp->stat_compr_blocks=0;
+ comp->stat_decompr_blocks=0;
+ D1(printk(KERN_DEBUG "Registering JFFS2 compressor \"%s\"\n", comp->name));
- spin_lock(&jffs2_compressor_list_lock);
+ spin_lock(&jffs2_compressor_list_lock);
- list_for_each_entry(this, &jffs2_compressor_list, list) {
- if (this->priority < comp->priority) {
- list_add(&comp->list, this->list.prev);
- goto out;
- }
- }
- list_add_tail(&comp->list, &jffs2_compressor_list);
+ list_for_each_entry(this, &jffs2_compressor_list, list) {
+ if (this->priority < comp->priority) {
+ list_add(&comp->list, this->list.prev);
+ goto out;
+ }
+ }
+ list_add_tail(&comp->list, &jffs2_compressor_list);
out:
- D2(list_for_each_entry(this, &jffs2_compressor_list, list) {
- printk(KERN_DEBUG "Compressor \"%s\", prio %d\n", this->name, this->priority);
- })
+ D2(list_for_each_entry(this, &jffs2_compressor_list, list) {
+ printk(KERN_DEBUG "Compressor \"%s\", prio %d\n", this->name, this->priority);
+ })
- spin_unlock(&jffs2_compressor_list_lock);
+ spin_unlock(&jffs2_compressor_list_lock);
- return 0;
+ return 0;
}
int jffs2_unregister_compressor(struct jffs2_compressor *comp)
{
- D2(struct jffs2_compressor *this;)
+ D2(struct jffs2_compressor *this;)
- D1(printk(KERN_DEBUG "Unregistering JFFS2 compressor \"%s\"\n", comp->name));
+ D1(printk(KERN_DEBUG "Unregistering JFFS2 compressor \"%s\"\n", comp->name));
- spin_lock(&jffs2_compressor_list_lock);
+ spin_lock(&jffs2_compressor_list_lock);
- if (comp->usecount) {
- spin_unlock(&jffs2_compressor_list_lock);
- printk(KERN_WARNING "JFFS2: Compressor modul is in use. Unregister failed.\n");
- return -1;
- }
- list_del(&comp->list);
+ if (comp->usecount) {
+ spin_unlock(&jffs2_compressor_list_lock);
+ printk(KERN_WARNING "JFFS2: Compressor modul is in use. Unregister failed.\n");
+ return -1;
+ }
+ list_del(&comp->list);
- D2(list_for_each_entry(this, &jffs2_compressor_list, list) {
- printk(KERN_DEBUG "Compressor \"%s\", prio %d\n", this->name, this->priority);
- })
- spin_unlock(&jffs2_compressor_list_lock);
- return 0;
+ D2(list_for_each_entry(this, &jffs2_compressor_list, list) {
+ printk(KERN_DEBUG "Compressor \"%s\", prio %d\n", this->name, this->priority);
+ })
+ spin_unlock(&jffs2_compressor_list_lock);
+ return 0;
}
void jffs2_free_comprbuf(unsigned char *comprbuf, unsigned char *orig)
{
- if (orig != comprbuf)
- kfree(comprbuf);
+ if (orig != comprbuf)
+ kfree(comprbuf);
}
int __init jffs2_compressors_init(void)
{
/* Registering compressors */
#ifdef CONFIG_JFFS2_ZLIB
- jffs2_zlib_init();
+ jffs2_zlib_init();
#endif
#ifdef CONFIG_JFFS2_RTIME
- jffs2_rtime_init();
+ jffs2_rtime_init();
#endif
#ifdef CONFIG_JFFS2_RUBIN
- jffs2_rubinmips_init();
- jffs2_dynrubin_init();
+ jffs2_rubinmips_init();
+ jffs2_dynrubin_init();
#endif
/* Setting default compression mode */
#ifdef CONFIG_JFFS2_CMODE_NONE
- jffs2_compression_mode = JFFS2_COMPR_MODE_NONE;
- D1(printk(KERN_INFO "JFFS2: default compression mode: none\n");)
+ jffs2_compression_mode = JFFS2_COMPR_MODE_NONE;
+ D1(printk(KERN_INFO "JFFS2: default compression mode: none\n");)
#else
#ifdef CONFIG_JFFS2_CMODE_SIZE
- jffs2_compression_mode = JFFS2_COMPR_MODE_SIZE;
- D1(printk(KERN_INFO "JFFS2: default compression mode: size\n");)
+ jffs2_compression_mode = JFFS2_COMPR_MODE_SIZE;
+ D1(printk(KERN_INFO "JFFS2: default compression mode: size\n");)
#else
- D1(printk(KERN_INFO "JFFS2: default compression mode: priority\n");)
+ D1(printk(KERN_INFO "JFFS2: default compression mode: priority\n");)
#endif
#endif
- return 0;
+ return 0;
}
int jffs2_compressors_exit(void)
{
/* Unregistering compressors */
#ifdef CONFIG_JFFS2_RUBIN
- jffs2_dynrubin_exit();
- jffs2_rubinmips_exit();
+ jffs2_dynrubin_exit();
+ jffs2_rubinmips_exit();
#endif
#ifdef CONFIG_JFFS2_RTIME
- jffs2_rtime_exit();
+ jffs2_rtime_exit();
#endif
#ifdef CONFIG_JFFS2_ZLIB
- jffs2_zlib_exit();
+ jffs2_zlib_exit();
#endif
- return 0;
+ return 0;
}
diff --git a/fs/jffs2/compr.h b/fs/jffs2/compr.h
index 68cc701..1070275 100644
--- a/fs/jffs2/compr.h
+++ b/fs/jffs2/compr.h
@@ -2,7 +2,7 @@
* JFFS2 -- Journalling Flash File System, Version 2.
*
* Copyright © 2004 Ferenc Havasi <havasi@inf.u-szeged.hu>,
- * University of Szeged, Hungary
+ * University of Szeged, Hungary
*
* For licensing information, see the file 'LICENCE' in this directory.
*
@@ -32,29 +32,29 @@
#define JFFS2_ZLIB_PRIORITY 60
#define JFFS2_RUBINMIPS_DISABLED /* RUBINs will be used only */
-#define JFFS2_DYNRUBIN_DISABLED /* for decompression */
+#define JFFS2_DYNRUBIN_DISABLED /* for decompression */
#define JFFS2_COMPR_MODE_NONE 0
#define JFFS2_COMPR_MODE_PRIORITY 1
#define JFFS2_COMPR_MODE_SIZE 2
struct jffs2_compressor {
- struct list_head list;
- int priority; /* used by prirority comr. mode */
- char *name;
- char compr; /* JFFS2_COMPR_XXX */
- int (*compress)(unsigned char *data_in, unsigned char *cpage_out,
- uint32_t *srclen, uint32_t *destlen, void *model);
- int (*decompress)(unsigned char *cdata_in, unsigned char *data_out,
- uint32_t cdatalen, uint32_t datalen, void *model);
- int usecount;
- int disabled; /* if seted the compressor won't compress */
- unsigned char *compr_buf; /* used by size compr. mode */
- uint32_t compr_buf_size; /* used by size compr. mode */
- uint32_t stat_compr_orig_size;
- uint32_t stat_compr_new_size;
- uint32_t stat_compr_blocks;
- uint32_t stat_decompr_blocks;
+ struct list_head list;
+ int priority; /* used by prirority comr. mode */
+ char *name;
+ char compr; /* JFFS2_COMPR_XXX */
+ int (*compress)(unsigned char *data_in, unsigned char *cpage_out,
+ uint32_t *srclen, uint32_t *destlen, void *model);
+ int (*decompress)(unsigned char *cdata_in, unsigned char *data_out,
+ uint32_t cdatalen, uint32_t datalen, void *model);
+ int usecount;
+ int disabled; /* if set the compressor won't compress */
+ unsigned char *compr_buf; /* used by size compr. mode */
+ uint32_t compr_buf_size; /* used by size compr. mode */
+ uint32_t stat_compr_orig_size;
+ uint32_t stat_compr_new_size;
+ uint32_t stat_compr_blocks;
+ uint32_t stat_decompr_blocks;
};
int jffs2_register_compressor(struct jffs2_compressor *comp);
@@ -64,12 +64,12 @@ int jffs2_compressors_init(void);
int jffs2_compressors_exit(void);
uint16_t jffs2_compress(struct jffs2_sb_info *c, struct jffs2_inode_info *f,
- unsigned char *data_in, unsigned char **cpage_out,
- uint32_t *datalen, uint32_t *cdatalen);
+ unsigned char *data_in, unsigned char **cpage_out,
+ uint32_t *datalen, uint32_t *cdatalen);
int jffs2_decompress(struct jffs2_sb_info *c, struct jffs2_inode_info *f,
- uint16_t comprtype, unsigned char *cdata_in,
- unsigned char *data_out, uint32_t cdatalen, uint32_t datalen);
+ uint16_t comprtype, unsigned char *cdata_in,
+ unsigned char *data_out, uint32_t cdatalen, uint32_t datalen);
void jffs2_free_comprbuf(unsigned char *comprbuf, unsigned char *orig);
diff --git a/fs/jffs2/compr_rtime.c b/fs/jffs2/compr_rtime.c
index 0d0bfd2..546d153 100644
--- a/fs/jffs2/compr_rtime.c
+++ b/fs/jffs2/compr_rtime.c
@@ -104,7 +104,7 @@ static int jffs2_rtime_decompress(unsigned char *data_in,
}
}
}
- return 0;
+ return 0;
}
static struct jffs2_compressor jffs2_rtime_comp = {
diff --git a/fs/jffs2/compr_rubin.c b/fs/jffs2/compr_rubin.c
index ea0431e..c73fa89 100644
--- a/fs/jffs2/compr_rubin.c
+++ b/fs/jffs2/compr_rubin.c
@@ -384,7 +384,7 @@ static int jffs2_rubinmips_decompress(unsigned char *data_in,
void *model)
{
rubin_do_decompress(BIT_DIVIDER_MIPS, bits_mips, data_in, cpage_out, sourcelen, dstlen);
- return 0;
+ return 0;
}
static int jffs2_dynrubin_decompress(unsigned char *data_in,
@@ -399,7 +399,7 @@ static int jffs2_dynrubin_decompress(unsigned char *data_in,
bits[c] = data_in[c];
rubin_do_decompress(256, bits, data_in+8, cpage_out, sourcelen-8, dstlen);
- return 0;
+ return 0;
}
static struct jffs2_compressor jffs2_rubinmips_comp = {
diff --git a/fs/jffs2/compr_zlib.c b/fs/jffs2/compr_zlib.c
index 2b87fcc..cfd301a 100644
--- a/fs/jffs2/compr_zlib.c
+++ b/fs/jffs2/compr_zlib.c
@@ -181,7 +181,7 @@ static int jffs2_zlib_decompress(unsigned char *data_in,
}
zlib_inflateEnd(&inf_strm);
mutex_unlock(&inflate_mutex);
- return 0;
+ return 0;
}
static struct jffs2_compressor jffs2_zlib_comp = {
@@ -203,11 +203,11 @@ int __init jffs2_zlib_init(void)
ret = alloc_workspaces();
if (ret)
- return ret;
+ return ret;
ret = jffs2_register_compressor(&jffs2_zlib_comp);
if (ret)
- free_workspaces();
+ free_workspaces();
return ret;
}
diff --git a/fs/jffs2/dir.c b/fs/jffs2/dir.c
index c1dfca3..d293a1f 100644
--- a/fs/jffs2/dir.c
+++ b/fs/jffs2/dir.c
@@ -32,7 +32,7 @@ static int jffs2_mkdir (struct inode *,struct dentry *,int);
static int jffs2_rmdir (struct inode *,struct dentry *);
static int jffs2_mknod (struct inode *,struct dentry *,int,dev_t);
static int jffs2_rename (struct inode *, struct dentry *,
- struct inode *, struct dentry *);
+ struct inode *, struct dentry *);
const struct file_operations jffs2_dir_operations =
{
@@ -770,7 +770,7 @@ static int jffs2_mknod (struct inode *dir_i, struct dentry *dentry, int mode, de
}
static int jffs2_rename (struct inode *old_dir_i, struct dentry *old_dentry,
- struct inode *new_dir_i, struct dentry *new_dentry)
+ struct inode *new_dir_i, struct dentry *new_dentry)
{
int ret;
struct jffs2_sb_info *c = JFFS2_SB_INFO(old_dir_i->i_sb);
diff --git a/fs/jffs2/erase.c b/fs/jffs2/erase.c
index 66e7c2f..efd83f3 100644
--- a/fs/jffs2/erase.c
+++ b/fs/jffs2/erase.c
@@ -38,8 +38,8 @@ static void jffs2_erase_block(struct jffs2_sb_info *c,
#ifdef __ECOS
ret = jffs2_flash_erase(c, jeb);
if (!ret) {
- jffs2_erase_succeeded(c, jeb);
- return;
+ jffs2_erase_succeeded(c, jeb);
+ return;
}
bad_offset = jeb->offset;
#else /* Linux */
@@ -50,12 +50,14 @@ static void jffs2_erase_block(struct jffs2_sb_info *c,
instr = kmalloc(sizeof(struct erase_info) + sizeof(struct erase_priv_struct), GFP_KERNEL);
if (!instr) {
printk(KERN_WARNING "kmalloc for struct erase_info in jffs2_erase_block failed. Refiling block for later\n");
+ down(&c->erase_free_sem);
spin_lock(&c->erase_completion_lock);
list_move(&jeb->list, &c->erase_pending_list);
c->erasing_size -= c->sector_size;
c->dirty_size += c->sector_size;
jeb->dirty_size = c->sector_size;
spin_unlock(&c->erase_completion_lock);
+ up(&c->erase_free_sem);
return;
}
@@ -82,12 +84,14 @@ static void jffs2_erase_block(struct jffs2_sb_info *c,
if (ret == -ENOMEM || ret == -EAGAIN) {
/* Erase failed immediately. Refile it on the list */
D1(printk(KERN_DEBUG "Erase at 0x%08x failed: %d. Refiling on erase_pending_list\n", jeb->offset, ret));
+ down(&c->erase_free_sem);
spin_lock(&c->erase_completion_lock);
list_move(&jeb->list, &c->erase_pending_list);
c->erasing_size -= c->sector_size;
c->dirty_size += c->sector_size;
jeb->dirty_size = c->sector_size;
spin_unlock(&c->erase_completion_lock);
+ up(&c->erase_free_sem);
return;
}
@@ -114,6 +118,7 @@ void jffs2_erase_pending_blocks(struct jffs2_sb_info *c, int count)
jeb = list_entry(c->erase_complete_list.next, struct jffs2_eraseblock, list);
list_del(&jeb->list);
spin_unlock(&c->erase_completion_lock);
+ up(&c->erase_free_sem);
jffs2_mark_erased_block(c, jeb);
if (!--count) {
@@ -134,6 +139,7 @@ void jffs2_erase_pending_blocks(struct jffs2_sb_info *c, int count)
jffs2_free_jeb_node_refs(c, jeb);
list_add(&jeb->list, &c->erasing_list);
spin_unlock(&c->erase_completion_lock);
+ up(&c->erase_free_sem);
jffs2_erase_block(c, jeb);
@@ -142,23 +148,25 @@ void jffs2_erase_pending_blocks(struct jffs2_sb_info *c, int count)
}
/* Be nice */
- cond_resched();
+ yield();
+ down(&c->erase_free_sem);
spin_lock(&c->erase_completion_lock);
}
spin_unlock(&c->erase_completion_lock);
+ up(&c->erase_free_sem);
done:
D1(printk(KERN_DEBUG "jffs2_erase_pending_blocks completed\n"));
-
- up(&c->erase_free_sem);
}
static void jffs2_erase_succeeded(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb)
{
D1(printk(KERN_DEBUG "Erase completed successfully at 0x%08x\n", jeb->offset));
+ down(&c->erase_free_sem);
spin_lock(&c->erase_completion_lock);
list_move_tail(&jeb->list, &c->erase_complete_list);
spin_unlock(&c->erase_completion_lock);
+ up(&c->erase_free_sem);
/* Ensure that kupdated calls us again to mark them clean */
jffs2_erase_pending_trigger(c);
}
@@ -172,22 +180,26 @@ static void jffs2_erase_failed(struct jffs2_sb_info *c, struct jffs2_eraseblock
failed too many times. */
if (!jffs2_write_nand_badblock(c, jeb, bad_offset)) {
/* We'd like to give this block another try. */
+ down(&c->erase_free_sem);
spin_lock(&c->erase_completion_lock);
list_move(&jeb->list, &c->erase_pending_list);
c->erasing_size -= c->sector_size;
c->dirty_size += c->sector_size;
jeb->dirty_size = c->sector_size;
spin_unlock(&c->erase_completion_lock);
+ up(&c->erase_free_sem);
return;
}
}
+ down(&c->erase_free_sem);
spin_lock(&c->erase_completion_lock);
c->erasing_size -= c->sector_size;
c->bad_size += c->sector_size;
list_move(&jeb->list, &c->bad_list);
c->nr_erasing_blocks--;
spin_unlock(&c->erase_completion_lock);
+ up(&c->erase_free_sem);
wake_up(&c->erase_wait);
}
@@ -317,6 +329,33 @@ static int jffs2_block_check_erase(struct jffs2_sb_info *c, struct jffs2_erasebl
size_t retlen;
int ret = -EIO;
+ if (c->mtd->point) {
+ unsigned long *wordebuf;
+
+ ret = c->mtd->point(c->mtd, jeb->offset, c->sector_size, &retlen, (unsigned char **)&ebuf);
+ if (ret) {
+ D1(printk(KERN_DEBUG "MTD point failed %d\n", ret));
+ goto do_flash_read;
+ }
+ if (retlen < c->sector_size) {
+ /* Don't muck about if it won't let us point to the whole erase sector */
+ D1(printk(KERN_DEBUG "MTD point returned len too short: 0x%zx\n", retlen));
+ c->mtd->unpoint(c->mtd, ebuf, jeb->offset, c->sector_size);
+ goto do_flash_read;
+ }
+ wordebuf = ebuf-sizeof(*wordebuf);
+ retlen /= sizeof(*wordebuf);
+ do {
+ if (*++wordebuf != ~0)
+ break;
+ } while(--retlen);
+ c->mtd->unpoint(c->mtd, ebuf, jeb->offset, c->sector_size);
+ if (retlen)
+ printk(KERN_WARNING "Newly-erased block contained word 0x%lx at offset 0x%08x\n",
+ *wordebuf, jeb->offset + c->sector_size-retlen*sizeof(*wordebuf));
+ return 0;
+ }
+ do_flash_read:
ebuf = kmalloc(PAGE_SIZE, GFP_KERNEL);
if (!ebuf) {
printk(KERN_WARNING "Failed to allocate page buffer for verifying erase at 0x%08x. Refiling\n", jeb->offset);
@@ -417,6 +456,7 @@ static void jffs2_mark_erased_block(struct jffs2_sb_info *c, struct jffs2_eraseb
jffs2_link_node_ref(c, jeb, jeb->offset | REF_NORMAL, c->cleanmarker_size, NULL);
}
+ down(&c->erase_free_sem);
spin_lock(&c->erase_completion_lock);
c->erasing_size -= c->sector_size;
c->free_size += jeb->free_size;
@@ -429,23 +469,28 @@ static void jffs2_mark_erased_block(struct jffs2_sb_info *c, struct jffs2_eraseb
c->nr_erasing_blocks--;
c->nr_free_blocks++;
spin_unlock(&c->erase_completion_lock);
+ up(&c->erase_free_sem);
wake_up(&c->erase_wait);
return;
filebad:
+ down(&c->erase_free_sem);
spin_lock(&c->erase_completion_lock);
/* Stick it on a list (any list) so erase_failed can take it
right off again. Silly, but shouldn't happen often. */
list_add(&jeb->list, &c->erasing_list);
spin_unlock(&c->erase_completion_lock);
+ up(&c->erase_free_sem);
jffs2_erase_failed(c, jeb, bad_offset);
return;
refile:
/* Stick it back on the list from whence it came and come back later */
jffs2_erase_pending_trigger(c);
+ down(&c->erase_free_sem);
spin_lock(&c->erase_completion_lock);
list_add(&jeb->list, &c->erase_complete_list);
spin_unlock(&c->erase_completion_lock);
+ up(&c->erase_free_sem);
return;
}
diff --git a/fs/jffs2/gc.c b/fs/jffs2/gc.c
index 2d99e06..eded819 100644
--- a/fs/jffs2/gc.c
+++ b/fs/jffs2/gc.c
@@ -556,7 +556,7 @@ static int jffs2_garbage_collect_pristine(struct jffs2_sb_info *c,
node = kmalloc(rawlen, GFP_KERNEL);
if (!node)
- return -ENOMEM;
+ return -ENOMEM;
ret = jffs2_flash_read(c, ref_offset(raw), rawlen, &retlen, (char *)node);
if (!ret && retlen != rawlen)
@@ -624,7 +624,7 @@ static int jffs2_garbage_collect_pristine(struct jffs2_sb_info *c,
if (ret || (retlen != rawlen)) {
printk(KERN_NOTICE "Write of %d bytes at 0x%08x failed. returned %d, retlen %zd\n",
- rawlen, phys_ofs, ret, retlen);
+ rawlen, phys_ofs, ret, retlen);
if (retlen) {
jffs2_add_physical_node_ref(c, phys_ofs | REF_OBSOLETE, rawlen, NULL);
} else {
diff --git a/fs/jffs2/jffs2_fs_sb.h b/fs/jffs2/jffs2_fs_sb.h
index b13298a..ae99cd7 100644
--- a/fs/jffs2/jffs2_fs_sb.h
+++ b/fs/jffs2/jffs2_fs_sb.h
@@ -106,6 +106,9 @@ struct jffs2_sb_info {
uint32_t wbuf_pagesize; /* 0 for NOR and other flashes with no wbuf */
+#ifdef CONFIG_JFFS2_FS_WBUF_VERIFY
+ unsigned char *wbuf_verify; /* read-back buffer for verification */
+#endif
#ifdef CONFIG_JFFS2_FS_WRITEBUFFER
unsigned char *wbuf; /* Write-behind buffer for NAND flash */
uint32_t wbuf_ofs;
diff --git a/fs/jffs2/nodelist.h b/fs/jffs2/nodelist.h
index bc5509f..8b4955a 100644
--- a/fs/jffs2/nodelist.h
+++ b/fs/jffs2/nodelist.h
@@ -127,7 +127,7 @@ static inline struct jffs2_inode_cache *jffs2_raw_ref_to_ic(struct jffs2_raw_nod
return ((struct jffs2_inode_cache *)raw);
}
- /* flash_offset & 3 always has to be zero, because nodes are
+ /* flash_offset & 3 always has to be zero, because nodes are
always aligned at 4 bytes. So we have a couple of extra bits
to play with, which indicate the node's status; see below: */
#define REF_UNCHECKED 0 /* We haven't yet checked the CRC or built its inode */
@@ -197,7 +197,7 @@ struct jffs2_inode_cache {
#define RAWNODE_CLASS_XATTR_DATUM 1
#define RAWNODE_CLASS_XATTR_REF 2
-#define INOCACHE_HASHSIZE 128
+#define INOCACHE_HASHSIZE 1024
#define write_ofs(c) ((c)->nextblock->offset + (c)->sector_size - (c)->nextblock->free_size)
diff --git a/fs/jffs2/nodemgmt.c b/fs/jffs2/nodemgmt.c
index dbc908a..5b49bff 100644
--- a/fs/jffs2/nodemgmt.c
+++ b/fs/jffs2/nodemgmt.c
@@ -154,7 +154,7 @@ int jffs2_reserve_space_gc(struct jffs2_sb_info *c, uint32_t minsize,
while(ret == -EAGAIN) {
ret = jffs2_do_reserve_space(c, minsize, len, sumsize);
if (ret) {
- D1(printk(KERN_DEBUG "jffs2_reserve_space_gc: looping, ret is %d\n", ret));
+ D1(printk(KERN_DEBUG "jffs2_reserve_space_gc: looping, ret is %d\n", ret));
}
}
spin_unlock(&c->erase_completion_lock);
@@ -423,7 +423,12 @@ struct jffs2_raw_node_ref *jffs2_add_physical_node_ref(struct jffs2_sb_info *c,
even after refiling c->nextblock */
if ((c->nextblock || ((ofs & 3) != REF_OBSOLETE))
&& (jeb != c->nextblock || (ofs & ~3) != jeb->offset + (c->sector_size - jeb->free_size))) {
- printk(KERN_WARNING "argh. node added in wrong place\n");
+ printk(KERN_WARNING "argh. node added in wrong place at 0x%08x(%d)\n", ofs & ~3, ofs & 3);
+ if (c->nextblock)
+ printk(KERN_WARNING "nextblock 0x%08x", c->nextblock->offset);
+ else
+ printk(KERN_WARNING "No nextblock");
+ printk(", expected at %08x\n", jeb->offset + (c->sector_size - jeb->free_size));
return ERR_PTR(-EINVAL);
}
#endif
diff --git a/fs/jffs2/readinode.c b/fs/jffs2/readinode.c
index b5baa35..8d4319c 100644
--- a/fs/jffs2/readinode.c
+++ b/fs/jffs2/readinode.c
@@ -211,7 +211,7 @@ static void jffs2_kill_tn(struct jffs2_sb_info *c, struct jffs2_tmp_dnode_info *
* ordering.
*
* Returns 0 if the node was handled (including marking it obsolete)
- * < 0 an if error occurred
+ * < 0 an if error occurred
*/
static int jffs2_add_tn_to_tree(struct jffs2_sb_info *c,
struct jffs2_readinode_info *rii,
@@ -862,8 +862,8 @@ static inline int read_unknown(struct jffs2_sb_info *c, struct jffs2_raw_node_re
JFFS2_ERROR("REF_UNCHECKED but unknown node at %#08x\n",
ref_offset(ref));
JFFS2_ERROR("Node is {%04x,%04x,%08x,%08x}. Please report this error.\n",
- je16_to_cpu(un->magic), je16_to_cpu(un->nodetype),
- je32_to_cpu(un->totlen), je32_to_cpu(un->hdr_crc));
+ je16_to_cpu(un->magic), je16_to_cpu(un->nodetype),
+ je32_to_cpu(un->totlen), je32_to_cpu(un->hdr_crc));
jffs2_mark_node_obsolete(c, ref);
return 0;
}
diff --git a/fs/jffs2/scan.c b/fs/jffs2/scan.c
index 6c75cd4..59dd408 100644
--- a/fs/jffs2/scan.c
+++ b/fs/jffs2/scan.c
@@ -863,7 +863,7 @@ scan_more:
switch (je16_to_cpu(node->nodetype) & JFFS2_COMPAT_MASK) {
case JFFS2_FEATURE_ROCOMPAT:
printk(KERN_NOTICE "Read-only compatible feature node (0x%04x) found at offset 0x%08x\n", je16_to_cpu(node->nodetype), ofs);
- c->flags |= JFFS2_SB_FLAG_RO;
+ c->flags |= JFFS2_SB_FLAG_RO;
if (!(jffs2_is_readonly(c)))
return -EROFS;
if ((err = jffs2_scan_dirty_space(c, jeb, PAD(je32_to_cpu(node->totlen)))))
diff --git a/fs/jffs2/security.c b/fs/jffs2/security.c
index bc9f6ba..02c39c6 100644
--- a/fs/jffs2/security.c
+++ b/fs/jffs2/security.c
@@ -38,9 +38,9 @@ int jffs2_init_security(struct inode *inode, struct inode *dir)
}
rc = do_jffs2_setxattr(inode, JFFS2_XPREFIX_SECURITY, name, value, len, 0);
- kfree(name);
- kfree(value);
- return rc;
+ kfree(name);
+ kfree(value);
+ return rc;
}
/* ---- XATTR Handler for "security.*" ----------------- */
diff --git a/fs/jffs2/summary.c b/fs/jffs2/summary.c
index d828b29..2a77d3f 100644
--- a/fs/jffs2/summary.c
+++ b/fs/jffs2/summary.c
@@ -2,10 +2,10 @@
* JFFS2 -- Journalling Flash File System, Version 2.
*
* Copyright © 2004 Ferenc Havasi <havasi@inf.u-szeged.hu>,
- * Zoltan Sogor <weth@inf.u-szeged.hu>,
- * Patrik Kluba <pajko@halom.u-szeged.hu>,
- * University of Szeged, Hungary
- * 2006 KaiGai Kohei <kaigai@ak.jp.nec.com>
+ * Zoltan Sogor <weth@inf.u-szeged.hu>,
+ * Patrik Kluba <pajko@halom.u-szeged.hu>,
+ * University of Szeged, Hungary
+ * 2006 KaiGai Kohei <kaigai@ak.jp.nec.com>
*
* For licensing information, see the file 'LICENCE' in this directory.
*
diff --git a/fs/jffs2/summary.h b/fs/jffs2/summary.h
index 0c6669e..8bf34f2 100644
--- a/fs/jffs2/summary.h
+++ b/fs/jffs2/summary.h
@@ -2,9 +2,9 @@
* JFFS2 -- Journalling Flash File System, Version 2.
*
* Copyright © 2004 Ferenc Havasi <havasi@inf.u-szeged.hu>,
- * Zoltan Sogor <weth@inf.u-szeged.hu>,
- * Patrik Kluba <pajko@halom.u-szeged.hu>,
- * University of Szeged, Hungary
+ * Zoltan Sogor <weth@inf.u-szeged.hu>,
+ * Patrik Kluba <pajko@halom.u-szeged.hu>,
+ * University of Szeged, Hungary
*
* For licensing information, see the file 'LICENCE' in this directory.
*
diff --git a/fs/jffs2/wbuf.c b/fs/jffs2/wbuf.c
index 91d1d0f..d1d4f27 100644
--- a/fs/jffs2/wbuf.c
+++ b/fs/jffs2/wbuf.c
@@ -220,6 +220,47 @@ static struct jffs2_raw_node_ref **jffs2_incore_replace_raw(struct jffs2_sb_info
return NULL;
}
+#ifdef CONFIG_JFFS2_FS_WBUF_VERIFY
+static int jffs2_verify_write(struct jffs2_sb_info *c, unsigned char *buf,
+ uint32_t ofs)
+{
+ int ret;
+ size_t retlen;
+ char *eccstr;
+
+ ret = c->mtd->read(c->mtd, ofs, c->wbuf_pagesize, &retlen, c->wbuf_verify);
+ if (ret && ret != -EUCLEAN && ret != -EBADMSG) {
+ printk(KERN_WARNING "jffs2_verify_write(): Read back of page at %08x failed: %d\n", c->wbuf_ofs, ret);
+ return ret;
+ } else if (retlen != c->wbuf_pagesize) {
+ printk(KERN_WARNING "jffs2_verify_write(): Read back of page at %08x gave short read: %zd not %d.\n", ofs, retlen, c->wbuf_pagesize);
+ return -EIO;
+ }
+ if (!memcmp(buf, c->wbuf_verify, c->wbuf_pagesize))
+ return 0;
+
+ if (ret == -EUCLEAN)
+ eccstr = "corrected";
+ else if (ret == -EBADMSG)
+ eccstr = "correction failed";
+ else
+ eccstr = "OK or unused";
+
+ printk(KERN_WARNING "Write verify error (ECC %s) at %08x. Wrote:\n",
+ eccstr, c->wbuf_ofs);
+ print_hex_dump(KERN_WARNING, "", DUMP_PREFIX_OFFSET, 16, 1,
+ c->wbuf, c->wbuf_pagesize, 0);
+
+ printk(KERN_WARNING "Read back:\n");
+ print_hex_dump(KERN_WARNING, "", DUMP_PREFIX_OFFSET, 16, 1,
+ c->wbuf_verify, c->wbuf_pagesize, 0);
+
+ return -EIO;
+}
+#else
+#define jffs2_verify_write(c,b,o) (0)
+#endif
+
/* Recover from failure to write wbuf. Recover the nodes up to the
* wbuf, not the one which we were starting to try to write. */
@@ -380,7 +421,7 @@ static void jffs2_wbuf_recover(struct jffs2_sb_info *c)
ret = c->mtd->write(c->mtd, ofs, towrite, &retlen,
rewrite_buf);
- if (ret || retlen != towrite) {
+ if (ret || retlen != towrite || jffs2_verify_write(c, rewrite_buf, ofs)) {
/* Argh. We tried. Really we did. */
printk(KERN_CRIT "Recovery of wbuf failed due to a second write error\n");
kfree(buf);
@@ -587,15 +628,16 @@ static int __jffs2_flush_wbuf(struct jffs2_sb_info *c, int pad)
ret = c->mtd->write(c->mtd, c->wbuf_ofs, c->wbuf_pagesize, &retlen, c->wbuf);
- if (ret || retlen != c->wbuf_pagesize) {
- if (ret)
- printk(KERN_WARNING "jffs2_flush_wbuf(): Write failed with %d\n",ret);
- else {
- printk(KERN_WARNING "jffs2_flush_wbuf(): Write was short: %zd instead of %d\n",
- retlen, c->wbuf_pagesize);
- ret = -EIO;
- }
-
+ if (ret) {
+ printk(KERN_WARNING "jffs2_flush_wbuf(): Write failed with %d\n", ret);
+ goto wfail;
+ } else if (retlen != c->wbuf_pagesize) {
+ printk(KERN_WARNING "jffs2_flush_wbuf(): Write was short: %zd instead of %d\n",
+ retlen, c->wbuf_pagesize);
+ ret = -EIO;
+ goto wfail;
+ } else if ((ret = jffs2_verify_write(c, c->wbuf, c->wbuf_ofs))) {
+ wfail:
jffs2_wbuf_recover(c);
return ret;
@@ -966,8 +1008,8 @@ exit:
#define NR_OOB_SCAN_PAGES 4
-/* For historical reasons we use only 12 bytes for OOB clean marker */
-#define OOB_CM_SIZE 12
+/* For historical reasons we use only 8 bytes for OOB clean marker */
+#define OOB_CM_SIZE 8
static const struct jffs2_unknown_node oob_cleanmarker =
{
@@ -1021,8 +1063,8 @@ int jffs2_check_oob_empty(struct jffs2_sb_info *c,
/*
* Check for a valid cleanmarker.
* Returns: 0 if a valid cleanmarker was found
- * 1 if no cleanmarker was found
- * negative error code if an error occurred
+ * 1 if no cleanmarker was found
+ * negative error code if an error occurred
*/
int jffs2_check_nand_cleanmarker(struct jffs2_sb_info *c,
struct jffs2_eraseblock *jeb)
@@ -1138,11 +1180,22 @@ int jffs2_nand_flash_setup(struct jffs2_sb_info *c)
return -ENOMEM;
}
+#ifdef CONFIG_JFFS2_FS_WBUF_VERIFY
+ c->wbuf_verify = kmalloc(c->wbuf_pagesize, GFP_KERNEL);
+ if (!c->wbuf_verify) {
+ kfree(c->oobbuf);
+ kfree(c->wbuf);
+ return -ENOMEM;
+ }
+#endif
return 0;
}
void jffs2_nand_flash_cleanup(struct jffs2_sb_info *c)
{
+#ifdef CONFIG_JFFS2_FS_WBUF_VERIFY
+ kfree(c->wbuf_verify);
+#endif
kfree(c->wbuf);
kfree(c->oobbuf);
}
diff --git a/fs/jffs2/xattr.h b/fs/jffs2/xattr.h
index 3b0ff29..6e3b5dd 100644
--- a/fs/jffs2/xattr.h
+++ b/fs/jffs2/xattr.h
@@ -75,7 +75,7 @@ extern void jffs2_build_xattr_subsystem(struct jffs2_sb_info *c);
extern void jffs2_clear_xattr_subsystem(struct jffs2_sb_info *c);
extern struct jffs2_xattr_datum *jffs2_setup_xattr_datum(struct jffs2_sb_info *c,
- uint32_t xid, uint32_t version);
+ uint32_t xid, uint32_t version);
extern void jffs2_xattr_delete_inode(struct jffs2_sb_info *c, struct jffs2_inode_cache *ic);
extern void jffs2_xattr_free_inode(struct jffs2_sb_info *c, struct jffs2_inode_cache *ic);
diff --git a/fs/jffs2/xattr_user.c b/fs/jffs2/xattr_user.c
index 40942bc..8bbeab9 100644
--- a/fs/jffs2/xattr_user.c
+++ b/fs/jffs2/xattr_user.c
@@ -17,7 +17,7 @@
#include "nodelist.h"
static int jffs2_user_getxattr(struct inode *inode, const char *name,
- void *buffer, size_t size)
+ void *buffer, size_t size)
{
if (!strcmp(name, ""))
return -EINVAL;
@@ -25,7 +25,7 @@ static int jffs2_user_getxattr(struct inode *inode, const char *name,
}
static int jffs2_user_setxattr(struct inode *inode, const char *name, const void *buffer,
- size_t size, int flags)
+ size_t size, int flags)
{
if (!strcmp(name, ""))
return -EINVAL;
diff --git a/include/asm-i386/geode.h b/include/asm-i386/geode.h
index 6da4bbb..f18ebe2 100644
--- a/include/asm-i386/geode.h
+++ b/include/asm-i386/geode.h
@@ -135,6 +135,55 @@ static inline void geode_gpio_event_pme(unsigned int gpio, int pair)
geode_gpio_setup_event(gpio, pair, 1);
}
+/* MFGPT */
+
+#define MFGPT_TIMER_ANY -1
+
+#define MFGPT_DOMAIN_WORKING 1
+#define MFGPT_DOMAIN_STANDBY 2
+#define MFGPT_DOMAIN_ANY (MFGPT_DOMAIN_WORKING | MFGPT_DOMAIN_STANDBY)
+
+#define MFGPT_CMP1 0
+#define MFGPT_CMP2 1
+
+#define MFGPT_EVENT_IRQ 0
+#define MFGPT_EVENT_NMI 1
+#define MFGPT_EVENT_RESET 3
+
+#define MFGPT_REG_CMP1 0
+#define MFGPT_REG_CMP2 2
+#define MFGPT_REG_COUNTER 4
+#define MFGPT_REG_SETUP 6
+
+#define MFGPT_SETUP_CNTEN (1 << 15)
+#define MFGPT_SETUP_CMP2 (1 << 14)
+#define MFGPT_SETUP_CMP1 (1 << 13)
+#define MFGPT_SETUP_SETUP (1 << 12)
+#define MFGPT_SETUP_STOPEN (1 << 11)
+#define MFGPT_SETUP_EXTEN (1 << 10)
+#define MFGPT_SETUP_REVEN (1 << 5)
+#define MFGPT_SETUP_CLKSEL (1 << 4)
+
+static inline void geode_mfgpt_write(int timer, u16 reg, u16 value)
+{
+ u32 base = geode_get_dev_base(GEODE_DEV_MFGPT);
+ outw(value, base + reg + (timer * 8));
+}
+
+static inline u16 geode_mfgpt_read(int timer, u16 reg)
+{
+ u32 base = geode_get_dev_base(GEODE_DEV_MFGPT);
+ return inw(base + reg + (timer * 8));
+}
+
+extern int __init geode_mfgpt_detect(void);
+extern int geode_mfgpt_toggle_event(int timer, int cmp, int event, int enable);
+extern int geode_mfgpt_set_irq(int timer, int cmp, int irq, int enable);
+extern int geode_mfgpt_alloc_timer(int timer, int domain, struct module *owner);
+
+#define geode_mfgpt_setup_irq(t,c,i) geode_mfgpt_set_irq((t),(c),(i),1)
+#define geode_mfgpt_release_irq(t,c,i) geode_mfgpt_set_irq((t),(c),(i),0)
+
/* Specific geode tests */
static inline int is_geode_gx(void)
diff --git a/include/asm-i386/setup.h b/include/asm-i386/setup.h
index 7862fe8..d7146c0 100644
--- a/include/asm-i386/setup.h
+++ b/include/asm-i386/setup.h
@@ -24,6 +24,7 @@
#define OLD_CL_BASE_ADDR 0x90000
#define OLD_CL_OFFSET 0x90022
#define NEW_CL_POINTER 0x228 /* Relative to real mode data */
+#define OFW_INFO_OFFSET 0xb0 /* Relative to real mode data */
#ifndef __ASSEMBLY__
diff --git a/include/linux/console.h b/include/linux/console.h
index 56a7bcd..1a8b034 100644
--- a/include/linux/console.h
+++ b/include/linux/console.h
@@ -121,14 +121,11 @@ extern void console_stop(struct console *);
extern void console_start(struct console *);
extern int is_console_locked(void);
-#ifndef CONFIG_DISABLE_CONSOLE_SUSPEND
+extern int serial_console_suspend_enabled;
+
/* Suspend and resume console messages over PM events */
extern void suspend_console(void);
extern void resume_console(void);
-#else
-static inline void suspend_console(void) {}
-static inline void resume_console(void) {}
-#endif /* CONFIG_DISABLE_CONSOLE_SUSPEND */
int mda_console_init(void);
void prom_con_init(void);
diff --git a/include/linux/fb.h b/include/linux/fb.h
index cec5410..6b59db5 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -664,6 +664,12 @@ struct fb_ops {
/* restore saved state */
void (*fb_restore_state)(struct fb_info *info);
+ /* Shut down the graphics engine to save power */
+ int (*fb_powerdown)(struct fb_info *info);
+
+ /* Power it back up */
+ int (*fb_powerup)(struct fb_info *info);
+
/* get capability given var */
void (*fb_get_caps)(struct fb_info *info, struct fb_blit_caps *caps,
struct fb_var_screeninfo *var);
@@ -943,6 +949,9 @@ extern int fb_get_color_depth(struct fb_var_screeninfo *var,
extern int fb_get_options(char *name, char **option);
extern int fb_new_modelist(struct fb_info *info);
+extern int fb_powerdown(struct fb_info *info);
+extern int fb_powerup(struct fb_info *info);
+
extern struct fb_info *registered_fb[FB_MAX];
extern int num_registered_fb;
extern struct class *fb_class;
diff --git a/include/linux/mtd/onenand.h b/include/linux/mtd/onenand.h
index a56d24a..fd0a260 100644
--- a/include/linux/mtd/onenand.h
+++ b/include/linux/mtd/onenand.h
@@ -60,6 +60,7 @@ struct onenand_bufferram {
* @erase_shift: [INTERN] number of address bits in a block
* @page_shift: [INTERN] number of address bits in a page
* @page_mask: [INTERN] a page per block mask
+ * @writesize: [INTERN] a real page size
* @bufferram_index: [INTERN] BufferRAM index
* @bufferram: [INTERN] BufferRAM info
* @readw: [REPLACEABLE] hardware specific function for read short
@@ -100,6 +101,7 @@ struct onenand_chip {
unsigned int erase_shift;
unsigned int page_shift;
unsigned int page_mask;
+ unsigned int writesize;
unsigned int bufferram_index;
struct onenand_bufferram bufferram[MAX_BUFFERRAM];
@@ -140,6 +142,8 @@ struct onenand_chip {
#define ONENAND_NEXT_BUFFERRAM(this) (this->bufferram_index ^ 1)
#define ONENAND_SET_NEXT_BUFFERRAM(this) (this->bufferram_index ^= 1)
#define ONENAND_SET_PREV_BUFFERRAM(this) (this->bufferram_index ^= 1)
+#define ONENAND_SET_BUFFERRAM0(this) (this->bufferram_index = 0)
+#define ONENAND_SET_BUFFERRAM1(this) (this->bufferram_index = 1)
#define ONENAND_GET_SYS_CFG1(this) \
(this->read_word(this->base + ONENAND_REG_SYS_CFG1))
@@ -149,6 +153,13 @@ struct onenand_chip {
#define ONENAND_IS_DDP(this) \
(this->device_id & ONENAND_DEVICE_IS_DDP)
+#ifdef CONFIG_MTD_ONENAND_2X_PROGRAM
+#define ONENAND_IS_2PLANE(this) \
+ (this->options & ONENAND_HAS_2PLANE)
+#else
+#define ONENAND_IS_2PLANE(this) (0)
+#endif
+
/* Check byte access in OneNAND */
#define ONENAND_CHECK_BYTE_ACCESS(addr) (addr & 0x1)
@@ -157,6 +168,7 @@ struct onenand_chip {
*/
#define ONENAND_HAS_CONT_LOCK (0x0001)
#define ONENAND_HAS_UNLOCK_ALL (0x0002)
+#define ONENAND_HAS_2PLANE (0x0004)
#define ONENAND_PAGEBUF_ALLOC (0x1000)
#define ONENAND_OOBBUF_ALLOC (0x2000)
diff --git a/include/linux/mtd/onenand_regs.h b/include/linux/mtd/onenand_regs.h
index af94719..c46161f 100644
--- a/include/linux/mtd/onenand_regs.h
+++ b/include/linux/mtd/onenand_regs.h
@@ -74,6 +74,8 @@
#define ONENAND_DEVICE_DENSITY_512Mb (0x002)
#define ONENAND_DEVICE_DENSITY_1Gb (0x003)
+#define ONENAND_DEVICE_DENSITY_2Gb (0x004)
+#define ONENAND_DEVICE_DENSITY_4Gb (0x005)
/*
* Version ID Register F002h (R)
@@ -111,6 +113,8 @@
#define ONENAND_CMD_READOOB (0x13)
#define ONENAND_CMD_PROG (0x80)
#define ONENAND_CMD_PROGOOB (0x1A)
+#define ONENAND_CMD_2X_PROG (0x7D)
+#define ONENAND_CMD_2X_CACHE_PROG (0x7F)
#define ONENAND_CMD_UNLOCK (0x23)
#define ONENAND_CMD_LOCK (0x2A)
#define ONENAND_CMD_LOCK_TIGHT (0x2C)
diff --git a/include/linux/vt_kern.h b/include/linux/vt_kern.h
index 699b7e9..b44facf 100644
--- a/include/linux/vt_kern.h
+++ b/include/linux/vt_kern.h
@@ -95,4 +95,23 @@ struct vt_spawn_console {
};
extern struct vt_spawn_console vt_spawn_con;
+/* A notifier list for console events */
+extern struct raw_notifier_head console_notifier_list;
+
+/* Called when the FG console switches to KD_TEXT mode */
+#define CONSOLE_EVENT_SWITCH_TEXT 0x01
+
+/* Called when the FG console switches to KD_GRAPHICS mode */
+#define CONSOLE_EVENT_SWITCH_GRAPHICS 0x02
+
+static inline int console_event_register(struct notifier_block *n)
+{
+ return raw_notifier_chain_register(&console_notifier_list, n);
+}
+
+static inline int console_event_unregister(struct notifier_block *n)
+{
+ return raw_notifier_chain_unregister(&console_notifier_list, n);
+}
+
#endif /* _VT_KERN_H */
diff --git a/kernel/power/console.c b/kernel/power/console.c
index 89bcf49..dca98f5 100644
--- a/kernel/power/console.c
+++ b/kernel/power/console.c
@@ -9,7 +9,7 @@
#include <linux/console.h>
#include "power.h"
-#if defined(CONFIG_VT) && defined(CONFIG_VT_CONSOLE)
+#if defined(CONFIG_VT) && defined(CONFIG_VT_CONSOLE) && !defined(CONFIG_DISABLE_SUSPEND_VT_SWITCH)
#define SUSPEND_CONSOLE (MAX_NR_CONSOLES-1)
static int orig_fgconsole, orig_kmsg;
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