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authorHauke Mehrtens <hauke@hauke-m.de>2013-01-03 01:55:34 +0000
committerHauke Mehrtens <hauke@hauke-m.de>2013-01-03 01:55:34 +0000
commitf74e847301d3e1ae457f2330f175307d5d1d24c5 (patch)
tree3e5c2d211a3dd5ad4df92dffe4ec3016641909c7
parent25afeba608b9db64cc0cab1f7be790f64193f590 (diff)
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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> SVN-Revision: 34989
-rw-r--r--target/linux/brcm47xx/patches-3.6/180-bcma-make-bcma_find_core_unit-accessible-by-other-pa.patch24
-rw-r--r--target/linux/brcm47xx/patches-3.6/181-bcma-explicit-assigne-irq-numbers.patch109
-rw-r--r--target/linux/brcm47xx/patches-3.6/182-bcma-make-some-info-messages-debug.patch40
-rw-r--r--target/linux/brcm47xx/patches-3.6/183-bcma-mips-show-also-disabled-irqs.patch49
-rw-r--r--target/linux/brcm47xx/patches-3.6/235-bcma-dont-expose-mips-irq.patch10
5 files changed, 227 insertions, 5 deletions
diff --git a/target/linux/brcm47xx/patches-3.6/180-bcma-make-bcma_find_core_unit-accessible-by-other-pa.patch b/target/linux/brcm47xx/patches-3.6/180-bcma-make-bcma_find_core_unit-accessible-by-other-pa.patch
new file mode 100644
index 0000000000..147ac3416a
--- /dev/null
+++ b/target/linux/brcm47xx/patches-3.6/180-bcma-make-bcma_find_core_unit-accessible-by-other-pa.patch
@@ -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;
+
diff --git a/target/linux/brcm47xx/patches-3.6/181-bcma-explicit-assigne-irq-numbers.patch b/target/linux/brcm47xx/patches-3.6/181-bcma-explicit-assigne-irq-numbers.patch
new file mode 100644
index 0000000000..7fac41535d
--- /dev/null
+++ b/target/linux/brcm47xx/patches-3.6/181-bcma-explicit-assigne-irq-numbers.patch
@@ -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);
diff --git a/target/linux/brcm47xx/patches-3.6/182-bcma-make-some-info-messages-debug.patch b/target/linux/brcm47xx/patches-3.6/182-bcma-make-some-info-messages-debug.patch
new file mode 100644
index 0000000000..3506fe55ab
--- /dev/null
+++ b/target/linux/brcm47xx/patches-3.6/182-bcma-make-some-info-messages-debug.patch
@@ -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;
diff --git a/target/linux/brcm47xx/patches-3.6/183-bcma-mips-show-also-disabled-irqs.patch b/target/linux/brcm47xx/patches-3.6/183-bcma-mips-show-also-disabled-irqs.patch
new file mode 100644
index 0000000000..6606970e69
--- /dev/null
+++ b/target/linux/brcm47xx/patches-3.6/183-bcma-mips-show-also-disabled-irqs.patch
@@ -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 */
diff --git a/target/linux/brcm47xx/patches-3.6/235-bcma-dont-expose-mips-irq.patch b/target/linux/brcm47xx/patches-3.6/235-bcma-dont-expose-mips-irq.patch
index cd28c66b47..90d05bc8fd 100644
--- a/target/linux/brcm47xx/patches-3.6/235-bcma-dont-expose-mips-irq.patch
+++ b/target/linux/brcm47xx/patches-3.6/235-bcma-dont-expose-mips-irq.patch
@@ -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);
+