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openwrt/target/linux/generic/patches-3.0/025-bcma_backport.patch

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--- a/drivers/bcma/Kconfig
+++ b/drivers/bcma/Kconfig
@@ -13,6 +13,11 @@ config BCMA
Bus driver for Broadcom specific Advanced Microcontroller Bus
Architecture.
+# Support for Block-I/O. SELECT this from the driver that needs it.
+config BCMA_BLOCKIO
+ bool
+ depends on BCMA
+
config BCMA_HOST_PCI_POSSIBLE
bool
depends on BCMA && PCI = y
--- a/drivers/bcma/Makefile
+++ b/drivers/bcma/Makefile
@@ -1,4 +1,4 @@
-bcma-y += main.o scan.o core.o
+bcma-y += main.o scan.o core.o sprom.o
bcma-y += driver_chipcommon.o driver_chipcommon_pmu.o
bcma-y += driver_pci.o
bcma-$(CONFIG_BCMA_HOST_PCI) += host_pci.o
--- a/drivers/bcma/bcma_private.h
+++ b/drivers/bcma/bcma_private.h
@@ -13,12 +13,15 @@
struct bcma_bus;
/* main.c */
-extern int bcma_bus_register(struct bcma_bus *bus);
-extern void bcma_bus_unregister(struct bcma_bus *bus);
+int bcma_bus_register(struct bcma_bus *bus);
+void bcma_bus_unregister(struct bcma_bus *bus);
/* scan.c */
int bcma_bus_scan(struct bcma_bus *bus);
+/* sprom.c */
+int bcma_sprom_get(struct bcma_bus *bus);
+
#ifdef CONFIG_BCMA_HOST_PCI
/* host_pci.c */
extern int __init bcma_host_pci_init(void);
--- a/drivers/bcma/core.c
+++ b/drivers/bcma/core.c
@@ -19,7 +19,7 @@ bool bcma_core_is_enabled(struct bcma_de
}
EXPORT_SYMBOL_GPL(bcma_core_is_enabled);
-static void bcma_core_disable(struct bcma_device *core, u32 flags)
+void bcma_core_disable(struct bcma_device *core, u32 flags)
{
if (bcma_aread32(core, BCMA_RESET_CTL) & BCMA_RESET_CTL_RESET)
return;
@@ -31,6 +31,7 @@ static void bcma_core_disable(struct bcm
bcma_awrite32(core, BCMA_RESET_CTL, BCMA_RESET_CTL_RESET);
udelay(1);
}
+EXPORT_SYMBOL_GPL(bcma_core_disable);
int bcma_core_enable(struct bcma_device *core, u32 flags)
{
--- a/drivers/bcma/driver_chipcommon_pmu.c
+++ b/drivers/bcma/driver_chipcommon_pmu.c
@@ -53,6 +53,7 @@ static void bcma_pmu_resources_init(stru
max_msk = 0xFFFF;
break;
case 43224:
+ case 43225:
break;
default:
pr_err("PMU resource config unknown for device 0x%04X\n",
@@ -74,6 +75,7 @@ void bcma_pmu_swreg_init(struct bcma_drv
case 0x4313:
case 0x4331:
case 43224:
+ case 43225:
break;
default:
pr_err("PMU switch/regulators init unknown for device "
@@ -96,11 +98,13 @@ void bcma_pmu_workarounds(struct bcma_dr
if (bus->chipinfo.rev == 0) {
pr_err("Workarounds for 43224 rev 0 not fully "
"implemented\n");
- bcma_chipco_chipctl_maskset(cc, 0, ~0, 0xF0);
+ bcma_chipco_chipctl_maskset(cc, 0, ~0, 0x00F000F0);
} else {
bcma_chipco_chipctl_maskset(cc, 0, ~0, 0xF0);
}
break;
+ case 43225:
+ break;
default:
pr_err("Workarounds unknown for device 0x%04X\n",
bus->chipinfo.id);
--- a/drivers/bcma/driver_pci.c
+++ b/drivers/bcma/driver_pci.c
@@ -161,3 +161,27 @@ void bcma_core_pci_init(struct bcma_drv_
{
bcma_pcicore_serdes_workaround(pc);
}
+
+int bcma_core_pci_irq_ctl(struct bcma_drv_pci *pc, struct bcma_device *core,
+ bool enable)
+{
+ struct pci_dev *pdev = pc->core->bus->host_pci;
+ u32 coremask, tmp;
+ int err;
+
+ err = pci_read_config_dword(pdev, BCMA_PCI_IRQMASK, &tmp);
+ if (err)
+ goto out;
+
+ coremask = BIT(core->core_index) << 8;
+ if (enable)
+ tmp |= coremask;
+ else
+ tmp &= ~coremask;
+
+ err = pci_write_config_dword(pdev, BCMA_PCI_IRQMASK, tmp);
+
+out:
+ return err;
+}
+EXPORT_SYMBOL_GPL(bcma_core_pci_irq_ctl);
--- a/drivers/bcma/host_pci.c
+++ b/drivers/bcma/host_pci.c
@@ -65,6 +65,54 @@ static void bcma_host_pci_write32(struct
iowrite32(value, core->bus->mmio + offset);
}
+#ifdef CONFIG_BCMA_BLOCKIO
+void bcma_host_pci_block_read(struct bcma_device *core, void *buffer,
+ size_t count, u16 offset, u8 reg_width)
+{
+ void __iomem *addr = core->bus->mmio + offset;
+ if (core->bus->mapped_core != core)
+ bcma_host_pci_switch_core(core);
+ switch (reg_width) {
+ case sizeof(u8):
+ ioread8_rep(addr, buffer, count);
+ break;
+ case sizeof(u16):
+ WARN_ON(count & 1);
+ ioread16_rep(addr, buffer, count >> 1);
+ break;
+ case sizeof(u32):
+ WARN_ON(count & 3);
+ ioread32_rep(addr, buffer, count >> 2);
+ break;
+ default:
+ WARN_ON(1);
+ }
+}
+
+void bcma_host_pci_block_write(struct bcma_device *core, const void *buffer,
+ size_t count, u16 offset, u8 reg_width)
+{
+ void __iomem *addr = core->bus->mmio + offset;
+ if (core->bus->mapped_core != core)
+ bcma_host_pci_switch_core(core);
+ switch (reg_width) {
+ case sizeof(u8):
+ iowrite8_rep(addr, buffer, count);
+ break;
+ case sizeof(u16):
+ WARN_ON(count & 1);
+ iowrite16_rep(addr, buffer, count >> 1);
+ break;
+ case sizeof(u32):
+ WARN_ON(count & 3);
+ iowrite32_rep(addr, buffer, count >> 2);
+ break;
+ default:
+ WARN_ON(1);
+ }
+}
+#endif
+
static u32 bcma_host_pci_aread32(struct bcma_device *core, u16 offset)
{
if (core->bus->mapped_core != core)
@@ -87,6 +135,10 @@ const struct bcma_host_ops bcma_host_pci
.write8 = bcma_host_pci_write8,
.write16 = bcma_host_pci_write16,
.write32 = bcma_host_pci_write32,
+#ifdef CONFIG_BCMA_BLOCKIO
+ .block_read = bcma_host_pci_block_read,
+ .block_write = bcma_host_pci_block_write,
+#endif
.aread32 = bcma_host_pci_aread32,
.awrite32 = bcma_host_pci_awrite32,
};
@@ -175,6 +227,7 @@ static DEFINE_PCI_DEVICE_TABLE(bcma_pci_
{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x0576) },
{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4331) },
{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4353) },
+ { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4357) },
{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4727) },
{ 0, },
};
--- a/drivers/bcma/main.c
+++ b/drivers/bcma/main.c
@@ -7,6 +7,7 @@
#include "bcma_private.h"
#include <linux/bcma/bcma.h>
+#include <linux/slab.h>
MODULE_DESCRIPTION("Broadcom's specific AMBA driver");
MODULE_LICENSE("GPL");
@@ -89,6 +90,8 @@ static int bcma_register_cores(struct bc
switch (bus->hosttype) {
case BCMA_HOSTTYPE_PCI:
core->dev.parent = &bus->host_pci->dev;
+ core->dma_dev = &bus->host_pci->dev;
+ core->irq = bus->host_pci->irq;
break;
case BCMA_HOSTTYPE_NONE:
case BCMA_HOSTTYPE_SDIO:
@@ -144,6 +147,13 @@ int bcma_bus_register(struct bcma_bus *b
bcma_core_pci_init(&bus->drv_pci);
}
+ /* Try to get SPROM */
+ err = bcma_sprom_get(bus);
+ if (err) {
+ pr_err("Failed to get SPROM: %d\n", err);
+ return -ENOENT;
+ }
+
/* Register found cores */
bcma_register_cores(bus);
@@ -151,13 +161,11 @@ int bcma_bus_register(struct bcma_bus *b
return 0;
}
-EXPORT_SYMBOL_GPL(bcma_bus_register);
void bcma_bus_unregister(struct bcma_bus *bus)
{
bcma_unregister_cores(bus);
}
-EXPORT_SYMBOL_GPL(bcma_bus_unregister);
int __bcma_driver_register(struct bcma_driver *drv, struct module *owner)
{
--- /dev/null
+++ b/drivers/bcma/sprom.c
@@ -0,0 +1,162 @@
+/*
+ * Broadcom specific AMBA
+ * SPROM reading
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+
+#include "bcma_private.h"
+
+#include <linux/bcma/bcma.h>
+#include <linux/bcma/bcma_regs.h>
+#include <linux/pci.h>
+#include <linux/io.h>
+#include <linux/dma-mapping.h>
+#include <linux/slab.h>
+
+#define SPOFF(offset) ((offset) / sizeof(u16))
+
+/**************************************************
+ * R/W ops.
+ **************************************************/
+
+static void bcma_sprom_read(struct bcma_bus *bus, u16 *sprom)
+{
+ int i;
+ for (i = 0; i < SSB_SPROMSIZE_WORDS_R4; i++)
+ sprom[i] = bcma_read16(bus->drv_cc.core,
+ BCMA_CC_SPROM + (i * 2));
+}
+
+/**************************************************
+ * Validation.
+ **************************************************/
+
+static inline u8 bcma_crc8(u8 crc, u8 data)
+{
+ /* Polynomial: x^8 + x^7 + x^6 + x^4 + x^2 + 1 */
+ static const u8 t[] = {
+ 0x00, 0xF7, 0xB9, 0x4E, 0x25, 0xD2, 0x9C, 0x6B,
+ 0x4A, 0xBD, 0xF3, 0x04, 0x6F, 0x98, 0xD6, 0x21,
+ 0x94, 0x63, 0x2D, 0xDA, 0xB1, 0x46, 0x08, 0xFF,
+ 0xDE, 0x29, 0x67, 0x90, 0xFB, 0x0C, 0x42, 0xB5,
+ 0x7F, 0x88, 0xC6, 0x31, 0x5A, 0xAD, 0xE3, 0x14,
+ 0x35, 0xC2, 0x8C, 0x7B, 0x10, 0xE7, 0xA9, 0x5E,
+ 0xEB, 0x1C, 0x52, 0xA5, 0xCE, 0x39, 0x77, 0x80,
+ 0xA1, 0x56, 0x18, 0xEF, 0x84, 0x73, 0x3D, 0xCA,
+ 0xFE, 0x09, 0x47, 0xB0, 0xDB, 0x2C, 0x62, 0x95,
+ 0xB4, 0x43, 0x0D, 0xFA, 0x91, 0x66, 0x28, 0xDF,
+ 0x6A, 0x9D, 0xD3, 0x24, 0x4F, 0xB8, 0xF6, 0x01,
+ 0x20, 0xD7, 0x99, 0x6E, 0x05, 0xF2, 0xBC, 0x4B,
+ 0x81, 0x76, 0x38, 0xCF, 0xA4, 0x53, 0x1D, 0xEA,
+ 0xCB, 0x3C, 0x72, 0x85, 0xEE, 0x19, 0x57, 0xA0,
+ 0x15, 0xE2, 0xAC, 0x5B, 0x30, 0xC7, 0x89, 0x7E,
+ 0x5F, 0xA8, 0xE6, 0x11, 0x7A, 0x8D, 0xC3, 0x34,
+ 0xAB, 0x5C, 0x12, 0xE5, 0x8E, 0x79, 0x37, 0xC0,
+ 0xE1, 0x16, 0x58, 0xAF, 0xC4, 0x33, 0x7D, 0x8A,
+ 0x3F, 0xC8, 0x86, 0x71, 0x1A, 0xED, 0xA3, 0x54,
+ 0x75, 0x82, 0xCC, 0x3B, 0x50, 0xA7, 0xE9, 0x1E,
+ 0xD4, 0x23, 0x6D, 0x9A, 0xF1, 0x06, 0x48, 0xBF,
+ 0x9E, 0x69, 0x27, 0xD0, 0xBB, 0x4C, 0x02, 0xF5,
+ 0x40, 0xB7, 0xF9, 0x0E, 0x65, 0x92, 0xDC, 0x2B,
+ 0x0A, 0xFD, 0xB3, 0x44, 0x2F, 0xD8, 0x96, 0x61,
+ 0x55, 0xA2, 0xEC, 0x1B, 0x70, 0x87, 0xC9, 0x3E,
+ 0x1F, 0xE8, 0xA6, 0x51, 0x3A, 0xCD, 0x83, 0x74,
+ 0xC1, 0x36, 0x78, 0x8F, 0xE4, 0x13, 0x5D, 0xAA,
+ 0x8B, 0x7C, 0x32, 0xC5, 0xAE, 0x59, 0x17, 0xE0,
+ 0x2A, 0xDD, 0x93, 0x64, 0x0F, 0xF8, 0xB6, 0x41,
+ 0x60, 0x97, 0xD9, 0x2E, 0x45, 0xB2, 0xFC, 0x0B,
+ 0xBE, 0x49, 0x07, 0xF0, 0x9B, 0x6C, 0x22, 0xD5,
+ 0xF4, 0x03, 0x4D, 0xBA, 0xD1, 0x26, 0x68, 0x9F,
+ };
+ return t[crc ^ data];
+}
+
+static u8 bcma_sprom_crc(const u16 *sprom)
+{
+ int word;
+ u8 crc = 0xFF;
+
+ for (word = 0; word < SSB_SPROMSIZE_WORDS_R4 - 1; word++) {
+ crc = bcma_crc8(crc, sprom[word] & 0x00FF);
+ crc = bcma_crc8(crc, (sprom[word] & 0xFF00) >> 8);
+ }
+ crc = bcma_crc8(crc, sprom[SSB_SPROMSIZE_WORDS_R4 - 1] & 0x00FF);
+ crc ^= 0xFF;
+
+ return crc;
+}
+
+static int bcma_sprom_check_crc(const u16 *sprom)
+{
+ u8 crc;
+ u8 expected_crc;
+ u16 tmp;
+
+ crc = bcma_sprom_crc(sprom);
+ tmp = sprom[SSB_SPROMSIZE_WORDS_R4 - 1] & SSB_SPROM_REVISION_CRC;
+ expected_crc = tmp >> SSB_SPROM_REVISION_CRC_SHIFT;
+ if (crc != expected_crc)
+ return -EPROTO;
+
+ return 0;
+}
+
+static int bcma_sprom_valid(const u16 *sprom)
+{
+ u16 revision;
+ int err;
+
+ err = bcma_sprom_check_crc(sprom);
+ if (err)
+ return err;
+
+ revision = sprom[SSB_SPROMSIZE_WORDS_R4 - 1] & SSB_SPROM_REVISION_REV;
+ if (revision != 8) {
+ pr_err("Unsupported SPROM revision: %d\n", revision);
+ return -ENOENT;
+ }
+
+ return 0;
+}
+
+/**************************************************
+ * SPROM extraction.
+ **************************************************/
+
+static void bcma_sprom_extract_r8(struct bcma_bus *bus, const u16 *sprom)
+{
+ u16 v;
+ int i;
+
+ for (i = 0; i < 3; i++) {
+ v = sprom[SPOFF(SSB_SPROM8_IL0MAC) + i];
+ *(((__be16 *)bus->sprom.il0mac) + i) = cpu_to_be16(v);
+ }
+}
+
+int bcma_sprom_get(struct bcma_bus *bus)
+{
+ u16 *sprom;
+ int err = 0;
+
+ if (!bus->drv_cc.core)
+ return -EOPNOTSUPP;
+
+ sprom = kcalloc(SSB_SPROMSIZE_WORDS_R4, sizeof(u16),
+ GFP_KERNEL);
+ if (!sprom)
+ return -ENOMEM;
+
+ bcma_sprom_read(bus, sprom);
+
+ err = bcma_sprom_valid(sprom);
+ if (err)
+ goto out;
+
+ bcma_sprom_extract_r8(bus, sprom);
+
+out:
+ kfree(sprom);
+ return err;
+}
--- a/include/linux/bcma/bcma.h
+++ b/include/linux/bcma/bcma.h
@@ -6,6 +6,7 @@
#include <linux/bcma/bcma_driver_chipcommon.h>
#include <linux/bcma/bcma_driver_pci.h>
+#include <linux/ssb/ssb.h> /* SPROM sharing */
#include "bcma_regs.h"
@@ -31,6 +32,12 @@ struct bcma_host_ops {
void (*write8)(struct bcma_device *core, u16 offset, u8 value);
void (*write16)(struct bcma_device *core, u16 offset, u16 value);
void (*write32)(struct bcma_device *core, u16 offset, u32 value);
+#ifdef CONFIG_BCMA_BLOCKIO
+ void (*block_read)(struct bcma_device *core, void *buffer,
+ size_t count, u16 offset, u8 reg_width);
+ void (*block_write)(struct bcma_device *core, const void *buffer,
+ size_t count, u16 offset, u8 reg_width);
+#endif
/* Agent ops */
u32 (*aread32)(struct bcma_device *core, u16 offset);
void (*awrite32)(struct bcma_device *core, u16 offset, u32 value);
@@ -117,6 +124,8 @@ struct bcma_device {
struct bcma_device_id id;
struct device dev;
+ struct device *dma_dev;
+ unsigned int irq;
bool dev_registered;
u8 core_index;
@@ -179,6 +188,10 @@ struct bcma_bus {
struct bcma_drv_cc drv_cc;
struct bcma_drv_pci drv_pci;
+
+ /* We decided to share SPROM struct with SSB as long as we do not need
+ * any hacks for BCMA. This simplifies drivers code. */
+ struct ssb_sprom sprom;
};
extern inline u32 bcma_read8(struct bcma_device *core, u16 offset)
@@ -208,6 +221,18 @@ void bcma_write32(struct bcma_device *co
{
core->bus->ops->write32(core, offset, value);
}
+#ifdef CONFIG_BCMA_BLOCKIO
+extern inline void bcma_block_read(struct bcma_device *core, void *buffer,
+ size_t count, u16 offset, u8 reg_width)
+{
+ core->bus->ops->block_read(core, buffer, count, offset, reg_width);
+}
+extern inline void bcma_block_write(struct bcma_device *core, const void *buffer,
+ size_t count, u16 offset, u8 reg_width)
+{
+ core->bus->ops->block_write(core, buffer, count, offset, reg_width);
+}
+#endif
extern inline u32 bcma_aread32(struct bcma_device *core, u16 offset)
{
return core->bus->ops->aread32(core, offset);
@@ -219,6 +244,7 @@ void bcma_awrite32(struct bcma_device *c
}
extern bool bcma_core_is_enabled(struct bcma_device *core);
+extern void bcma_core_disable(struct bcma_device *core, u32 flags);
extern int bcma_core_enable(struct bcma_device *core, u32 flags);
#endif /* LINUX_BCMA_H_ */
--- a/include/linux/bcma/bcma_driver_chipcommon.h
+++ b/include/linux/bcma/bcma_driver_chipcommon.h
@@ -244,6 +244,7 @@
#define BCMA_CC_REGCTL_DATA 0x065C
#define BCMA_CC_PLLCTL_ADDR 0x0660
#define BCMA_CC_PLLCTL_DATA 0x0664
+#define BCMA_CC_SPROM 0x0830 /* SPROM beginning */
/* Data for the PMU, if available.
* Check availability with ((struct bcma_chipcommon)->capabilities & BCMA_CC_CAP_PMU)
--- a/include/linux/bcma/bcma_driver_pci.h
+++ b/include/linux/bcma/bcma_driver_pci.h
@@ -85,5 +85,7 @@ struct bcma_drv_pci {
#define pcicore_write32(pc, offset, val) bcma_write32((pc)->core, offset, val)
extern void bcma_core_pci_init(struct bcma_drv_pci *pc);
+extern int bcma_core_pci_irq_ctl(struct bcma_drv_pci *pc,
+ struct bcma_device *core, bool enable);
#endif /* LINUX_BCMA_DRIVER_PCI_H_ */
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