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Diffstat (limited to 'target/linux/brcm63xx/patches-3.13/325-MIPS-BCM63XX-wire-up-the-second-cpu-s-irq-line.patch')
-rw-r--r--target/linux/brcm63xx/patches-3.13/325-MIPS-BCM63XX-wire-up-the-second-cpu-s-irq-line.patch92
1 files changed, 92 insertions, 0 deletions
diff --git a/target/linux/brcm63xx/patches-3.13/325-MIPS-BCM63XX-wire-up-the-second-cpu-s-irq-line.patch b/target/linux/brcm63xx/patches-3.13/325-MIPS-BCM63XX-wire-up-the-second-cpu-s-irq-line.patch
new file mode 100644
index 0000000000..189965a971
--- /dev/null
+++ b/target/linux/brcm63xx/patches-3.13/325-MIPS-BCM63XX-wire-up-the-second-cpu-s-irq-line.patch
@@ -0,0 +1,92 @@
+From df6661d1b5c001eb91ce07f364fd5b6468fd6f99 Mon Sep 17 00:00:00 2001
+From: Jonas Gorski <jogo@openwrt.org>
+Date: Fri, 26 Apr 2013 12:03:15 +0200
+Subject: [PATCH 36/53] MIPS: BCM63XX: wire up the second cpu's irq line
+
+---
+ arch/mips/bcm63xx/irq.c | 44 +++++++++++++++++++++++++++++++++++++-------
+ 1 file changed, 37 insertions(+), 7 deletions(-)
+
+--- a/arch/mips/bcm63xx/irq.c
++++ b/arch/mips/bcm63xx/irq.c
+@@ -102,11 +102,17 @@ static void __internal_irq_mask_##width(
+ unsigned reg = (irq / 32) ^ (width/32 - 1); \
+ unsigned bit = irq & 0x1f; \
+ unsigned long flags; \
++ int cpu; \
+ \
+ spin_lock_irqsave(&ipic_lock, flags); \
+- val = bcm_readl(irq_mask_addr[0] + reg * sizeof(u32)); \
+- val &= ~(1 << bit); \
+- bcm_writel(val, irq_mask_addr[0] + reg * sizeof(u32)); \
++ for_each_present_cpu(cpu) { \
++ if (!irq_mask_addr[cpu]) \
++ break; \
++ \
++ val = bcm_readl(irq_mask_addr[cpu] + reg * sizeof(u32));\
++ val &= ~(1 << bit); \
++ bcm_writel(val, irq_mask_addr[cpu] + reg * sizeof(u32));\
++ } \
+ spin_unlock_irqrestore(&ipic_lock, flags); \
+ } \
+ \
+@@ -116,11 +122,20 @@ static void __internal_irq_unmask_##widt
+ unsigned reg = (irq / 32) ^ (width/32 - 1); \
+ unsigned bit = irq & 0x1f; \
+ unsigned long flags; \
++ int cpu; \
+ \
+ spin_lock_irqsave(&ipic_lock, flags); \
+- val = bcm_readl(irq_mask_addr[0] + reg * sizeof(u32)); \
+- val |= (1 << bit); \
+- bcm_writel(val, irq_mask_addr[0] + reg * sizeof(u32)); \
++ for_each_present_cpu(cpu) { \
++ if (!irq_mask_addr[cpu]) \
++ break; \
++ \
++ val = bcm_readl(irq_mask_addr[cpu] + reg * sizeof(u32));\
++ if (cpu_online(cpu)) \
++ val |= (1 << bit); \
++ else \
++ val &= ~(1 << bit); \
++ bcm_writel(val, irq_mask_addr[cpu] + reg * sizeof(u32));\
++ } \
+ spin_unlock_irqrestore(&ipic_lock, flags); \
+ }
+
+@@ -145,7 +160,10 @@ asmlinkage void plat_irq_dispatch(void)
+ do_IRQ(1);
+ if (cause & CAUSEF_IP2)
+ dispatch_internal(0);
+- if (!is_ext_irq_cascaded) {
++ if (is_ext_irq_cascaded) {
++ if (cause & CAUSEF_IP3)
++ dispatch_internal(1);
++ } else {
+ if (cause & CAUSEF_IP3)
+ do_IRQ(IRQ_EXT_0);
+ if (cause & CAUSEF_IP4)
+@@ -358,6 +376,14 @@ static struct irqaction cpu_ip2_cascade_
+ .flags = IRQF_NO_THREAD,
+ };
+
++#ifdef CONFIG_SMP
++static struct irqaction cpu_ip3_cascade_action = {
++ .handler = no_action,
++ .name = "cascade_ip3",
++ .flags = IRQF_NO_THREAD,
++};
++#endif
++
+ static struct irqaction cpu_ext_cascade_action = {
+ .handler = no_action,
+ .name = "cascade_extirq",
+@@ -494,4 +520,8 @@ void __init arch_init_irq(void)
+ }
+
+ setup_irq(MIPS_CPU_IRQ_BASE + 2, &cpu_ip2_cascade_action);
++#ifdef CONFIG_SMP
++ if (is_ext_irq_cascaded)
++ setup_irq(MIPS_CPU_IRQ_BASE + 3, &cpu_ip3_cascade_action);
++#endif
+ }