From f74e847301d3e1ae457f2330f175307d5d1d24c5 Mon Sep 17 00:00:00 2001 From: Hauke Mehrtens Date: Thu, 3 Jan 2013 01:55:34 +0000 Subject: [PATCH] brcm47xx: improve IRQ handling for bcma based devices This was party inspirited by patches send by Nathan Hintz SVN-Revision: 34989 --- ...ind_core_unit-accessible-by-other-pa.patch | 24 ++++ ...81-bcma-explicit-assigne-irq-numbers.patch | 109 ++++++++++++++++++ ...2-bcma-make-some-info-messages-debug.patch | 40 +++++++ ...83-bcma-mips-show-also-disabled-irqs.patch | 49 ++++++++ .../235-bcma-dont-expose-mips-irq.patch | 10 +- 5 files changed, 227 insertions(+), 5 deletions(-) create mode 100644 target/linux/brcm47xx/patches-3.6/180-bcma-make-bcma_find_core_unit-accessible-by-other-pa.patch create mode 100644 target/linux/brcm47xx/patches-3.6/181-bcma-explicit-assigne-irq-numbers.patch create mode 100644 target/linux/brcm47xx/patches-3.6/182-bcma-make-some-info-messages-debug.patch create mode 100644 target/linux/brcm47xx/patches-3.6/183-bcma-mips-show-also-disabled-irqs.patch 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); + -- 2.25.1