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brcm47xx: improve IRQ handling for bcma based devices 

This was party inspirited by patches send by Nathan Hintz <nlhintz@hotmail.com>


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@34989 3c298f89-4303-0410-b956-a3cf2f4a3e73
master
Hauke Mehrtens 2013-01-03 01:55:34 +00:00
parent 880dc8381a
commit 1e3172dbf6
5 changed files with 227 additions and 5 deletions
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24
target/linux/brcm47xx/patches-3.6/180-bcma-make-bcma_find_core_unit-accessible-by-other-pa.patch Normal file
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@ -0,0 +1,24 @@
--- a/drivers/bcma/bcma_private.h
+++ b/drivers/bcma/bcma_private.h
@@ -31,6 +31,8 @@ int __init bcma_bus_early_register(struc
int bcma_bus_suspend(struct bcma_bus *bus);
int bcma_bus_resume(struct bcma_bus *bus);
#endif
+struct bcma_device *bcma_find_core_unit(struct bcma_bus *bus, u16 coreid,
+ u8 unit);
/* scan.c */
int bcma_bus_scan(struct bcma_bus *bus);
--- a/drivers/bcma/main.c
+++ b/drivers/bcma/main.c
@@ -81,8 +81,8 @@ struct bcma_device *bcma_find_core(struc
}
EXPORT_SYMBOL_GPL(bcma_find_core);
-static struct bcma_device *bcma_find_core_unit(struct bcma_bus *bus, u16 coreid,
- u8 unit)
+struct bcma_device *bcma_find_core_unit(struct bcma_bus *bus, u16 coreid,
+ u8 unit)
{
struct bcma_device *core;

109
target/linux/brcm47xx/patches-3.6/181-bcma-explicit-assigne-irq-numbers.patch Normal file
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@ -0,0 +1,109 @@
--- a/drivers/bcma/driver_mips.c
+++ b/drivers/bcma/driver_mips.c
@@ -148,6 +148,22 @@ static void bcma_core_mips_set_irq(struc
dev->id.id, oldirq + 2, irq + 2);
}
+static void bcma_core_mips_set_irq_name(struct bcma_bus *bus, unsigned int irq,
+ u16 coreid, u8 unit)
+{
+ struct bcma_device *core;
+
+ core = bcma_find_core_unit(bus, coreid, unit);
+ if (!core) {
+ bcma_warn(bus,
+ "Can not find core (id: 0x%x, unit %i) for IRQ configuration.\n",
+ coreid, unit);
+ return;
+ }
+
+ bcma_core_mips_set_irq(core, irq);
+}
+
static void bcma_core_mips_print_irq(struct bcma_device *dev, unsigned int irq)
{
int i;
@@ -247,7 +263,8 @@ void bcma_core_mips_early_init(struct bc
void bcma_core_mips_init(struct bcma_drv_mips *mcore)
{
struct bcma_bus *bus;
- struct bcma_device *core;
+ int irq;
+
bus = mcore->core->bus;
if (mcore->setup_done)
@@ -259,35 +276,44 @@ void bcma_core_mips_init(struct bcma_drv
mcore->assigned_irqs = 1;
- /* Assign IRQs to all cores on the bus */
- list_for_each_entry(core, &bus->cores, list) {
- int mips_irq;
- if (core->irq)
- continue;
-
- mips_irq = bcma_core_mips_irq(core);
- if (mips_irq > 4)
- core->irq = 0;
- else
- core->irq = mips_irq + 2;
- if (core->irq > 5)
- continue;
- switch (core->id.id) {
- case BCMA_CORE_PCI:
- case BCMA_CORE_PCIE:
- case BCMA_CORE_ETHERNET:
- case BCMA_CORE_ETHERNET_GBIT:
- case BCMA_CORE_MAC_GBIT:
- case BCMA_CORE_80211:
- case BCMA_CORE_USB20_HOST:
- /* These devices get their own IRQ line if available,
- * the rest goes on IRQ0
- */
- if (mcore->assigned_irqs <= 4)
- bcma_core_mips_set_irq(core,
- mcore->assigned_irqs++);
- break;
- }
+ switch (bus->chipinfo.id) {
+ case BCMA_CHIP_ID_BCM4716:
+ case BCMA_CHIP_ID_BCM4748:
+ bcma_core_mips_set_irq_name(bus, 1, BCMA_CORE_80211, 0);
+ bcma_core_mips_set_irq_name(bus, 2, BCMA_CORE_MAC_GBIT, 0);
+ bcma_core_mips_set_irq_name(bus, 3, BCMA_CORE_USB20_HOST, 0);
+ bcma_core_mips_set_irq_name(bus, 4, BCMA_CORE_PCIE, 0);
+ bcma_core_mips_set_irq_name(bus, 0, BCMA_CORE_CHIPCOMMON, 0);
+ bcma_core_mips_set_irq_name(bus, 0, BCMA_CORE_I2S, 0);
+ break;
+ case BCMA_CHIP_ID_BCM5356:
+ case BCMA_CHIP_ID_BCM47162:
+ case BCMA_CHIP_ID_BCM53572:
+ bcma_core_mips_set_irq_name(bus, 1, BCMA_CORE_80211, 0);
+ bcma_core_mips_set_irq_name(bus, 2, BCMA_CORE_MAC_GBIT, 0);
+ bcma_core_mips_set_irq_name(bus, 0, BCMA_CORE_CHIPCOMMON, 0);
+ break;
+ case BCMA_CHIP_ID_BCM5357:
+ case BCMA_CHIP_ID_BCM4749:
+ bcma_core_mips_set_irq_name(bus, 1, BCMA_CORE_80211, 0);
+ bcma_core_mips_set_irq_name(bus, 2, BCMA_CORE_MAC_GBIT, 0);
+ bcma_core_mips_set_irq_name(bus, 3, BCMA_CORE_USB20_HOST, 0);
+ bcma_core_mips_set_irq_name(bus, 0, BCMA_CORE_CHIPCOMMON, 0);
+ bcma_core_mips_set_irq_name(bus, 0, BCMA_CORE_I2S, 0);
+ break;
+ case BCMA_CHIP_ID_BCM4706:
+ bcma_core_mips_set_irq_name(bus, 1, BCMA_CORE_PCIE, 0);
+ bcma_core_mips_set_irq_name(bus, 2, BCMA_CORE_4706_MAC_GBIT,
+ 0);
+ bcma_core_mips_set_irq_name(bus, 3, BCMA_CORE_PCIE, 1);
+ bcma_core_mips_set_irq_name(bus, 4, BCMA_CORE_USB20_HOST, 0);
+ bcma_core_mips_set_irq_name(bus, 0, BCMA_CORE_4706_CHIPCOMMON,
+ 0);
+ break;
+ default:
+ bcma_err(bus,
+ "Unknown device (0x%x) found, can not configure IRQs\n",
+ bus->chipinfo.id);
}
bcma_info(bus, "IRQ reconfiguration done\n");
bcma_core_mips_dump_irq(bus);

40
target/linux/brcm47xx/patches-3.6/182-bcma-make-some-info-messages-debug.patch Normal file
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@ -0,0 +1,40 @@
--- a/drivers/bcma/driver_mips.c
+++ b/drivers/bcma/driver_mips.c
@@ -144,8 +144,8 @@ static void bcma_core_mips_set_irq(struc
1 << irqflag);
}
- bcma_info(bus, "set_irq: core 0x%04x, irq %d => %d\n",
- dev->id.id, oldirq + 2, irq + 2);
+ bcma_debug(bus, "set_irq: core 0x%04x, irq %d => %d\n",
+ dev->id.id, oldirq + 2, irq + 2);
}
static void bcma_core_mips_set_irq_name(struct bcma_bus *bus, unsigned int irq,
@@ -168,7 +168,7 @@ static void bcma_core_mips_print_irq(str
{
int i;
static const char *irq_name[] = {"2(S)", "3", "4", "5", "6", "D", "I"};
- printk(KERN_INFO KBUILD_MODNAME ": core 0x%04x, irq :", dev->id.id);
+ printk(KERN_DEBUG KBUILD_MODNAME ": core 0x%04x, irq :", dev->id.id);
for (i = 0; i <= 6; i++)
printk(" %s%s", irq_name[i], i == irq ? "*" : " ");
printk("\n");
@@ -270,7 +270,7 @@ void bcma_core_mips_init(struct bcma_drv
if (mcore->setup_done)
return;
- bcma_info(bus, "Initializing MIPS core...\n");
+ bcma_debug(bus, "Initializing MIPS core...\n");
bcma_core_mips_early_init(mcore);
@@ -315,7 +315,7 @@ void bcma_core_mips_init(struct bcma_drv
"Unknown device (0x%x) found, can not configure IRQs\n",
bus->chipinfo.id);
}
- bcma_info(bus, "IRQ reconfiguration done\n");
+ bcma_debug(bus, "IRQ reconfiguration done\n");
bcma_core_mips_dump_irq(bus);
mcore->setup_done = true;

49
target/linux/brcm47xx/patches-3.6/183-bcma-mips-show-also-disabled-irqs.patch Normal file
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@ -0,0 +1,49 @@
--- a/drivers/bcma/driver_mips.c
+++ b/drivers/bcma/driver_mips.c
@@ -75,11 +75,16 @@ static u32 bcma_core_mips_irqflag(struct
return dev->core_index;
flag = bcma_aread32(dev, BCMA_MIPS_OOBSELOUTA30);
- return flag & 0x1F;
+ if (flag)
+ return flag & 0x1F;
+ else
+ return 0x3f;
}
/* Get the MIPS IRQ assignment for a specified device.
* If unassigned, 0 is returned.
+ * If disabled, 5 is returned.
+ * If not supported, 6 is returned.
*/
unsigned int bcma_core_mips_irq(struct bcma_device *dev)
{
@@ -88,13 +93,18 @@ unsigned int bcma_core_mips_irq(struct b
unsigned int irq;
irqflag = bcma_core_mips_irqflag(dev);
+ if (irqflag == 0x3f)
+ return 6;
for (irq = 1; irq <= 4; irq++)
if (bcma_read32(mdev, BCMA_MIPS_MIPS74K_INTMASK(irq)) &
(1 << irqflag))
return irq;
- return 0;
+ if ((1 << irqflag) & bcma_read32(mdev, BCMA_MIPS_MIPS74K_INTMASK(0)))
+ return 0;
+
+ return 5;
}
EXPORT_SYMBOL(bcma_core_mips_irq);
@@ -115,7 +125,7 @@ static void bcma_core_mips_set_irq(struc
bcma_write32(mdev, BCMA_MIPS_MIPS74K_INTMASK(0),
bcma_read32(mdev, BCMA_MIPS_MIPS74K_INTMASK(0)) &
~(1 << irqflag));
- else
+ else if (oldirq != 5)
bcma_write32(mdev, BCMA_MIPS_MIPS74K_INTMASK(oldirq), 0);
/* assign the new one */

10
target/linux/brcm47xx/patches-3.6/235-bcma-dont-expose-mips-irq.patch
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@ -21,18 +21,18 @@
cc->nr_serial_ports = (cc->capabilities & BCMA_CC_CAP_NRUART);
--- a/drivers/bcma/driver_mips.c
+++ b/drivers/bcma/driver_mips.c
@@ -81,7 +81,7 @@ static u32 bcma_core_mips_irqflag(struct
/* Get the MIPS IRQ assignment for a specified device.
* If unassigned, 0 is returned.
@@ -86,7 +86,7 @@ static u32 bcma_core_mips_irqflag(struct
* If disabled, 5 is returned.
* If not supported, 6 is returned.
*/
-unsigned int bcma_core_mips_irq(struct bcma_device *dev)
+static unsigned int bcma_core_mips_irq(struct bcma_device *dev)
{
struct bcma_device *mdev = dev->bus->drv_mips.core;
u32 irqflag;
@@ -96,7 +96,12 @@ unsigned int bcma_core_mips_irq(struct b
@@ -106,7 +106,12 @@ unsigned int bcma_core_mips_irq(struct b
return 0;
return 5;
}
-EXPORT_SYMBOL(bcma_core_mips_irq);
+