brcm63xx: update development kernel to linux 3.14

Now that 3.13 will be EOL soon, switch to 3.14.

Known issues:
 * 74x164 is not available because upstream dropped non-DT support
 * jffs2 breaks with SMP

Unknown issues:
 * probably plenty

Signed-off-by: Jonas Gorski <jogo@openwrt.org>

SVN-Revision: 40380

1 files changed, 158 insertions, 0 deletions

diff --git a/target/linux/brcm63xx/patches-3.14/324-MIPS-BCM63XX-protect-irq-register-accesses.patch b/target/linux/brcm63xx/patches-3.14/324-MIPS-BCM63XX-protect-irq-register-accesses.patch
new file mode 100644
index 0000000000..c38137dc81
--- /dev/null
+++ b/target/linux/brcm63xx/patches-3.14/324-MIPS-BCM63XX-protect-irq-register-accesses.patch
@@ -0,0 +1,158 @@
+From 85257b702e1d4c6dcc839c737833c42ca53bae93 Mon Sep 17 00:00:00 2001
+From: Jonas Gorski <jogo@openwrt.org>
+Date: Sun, 21 Apr 2013 15:38:56 +0200
+Subject: [PATCH 35/53] MIPS: BCM63XX: protect irq register accesses
+
+---
+ arch/mips/bcm63xx/irq.c | 26 ++++++++++++++++++++++++++
+ 1 file changed, 26 insertions(+)
+
+--- a/arch/mips/bcm63xx/irq.c
++++ b/arch/mips/bcm63xx/irq.c
+@@ -12,6 +12,7 @@
+ #include <linux/interrupt.h>
+ #include <linux/module.h>
+ #include <linux/irq.h>
++#include <linux/spinlock.h>
+ #include <asm/irq_cpu.h>
+ #include <asm/mipsregs.h>
+ #include <bcm63xx_cpu.h>
+@@ -20,6 +21,9 @@
+ #include <bcm63xx_irq.h>
+ 
+ 
++static DEFINE_SPINLOCK(ipic_lock);
++static DEFINE_SPINLOCK(epic_lock);
++
+ static u32 irq_stat_addr[2];
+ static u32 irq_mask_addr[2];
+ static void (*dispatch_internal)(int pin);
+@@ -62,8 +66,10 @@ void __dispatch_internal_##width(int pin
+ 	bool irqs_pending = false;					\
+ 	static int i[2];						\
+ 	int *next = &i[pin];						\
++	unsigned long flags;						\
+ 									\
+ 	/* read registers in reverse order */				\
++	spin_lock_irqsave(&ipic_lock, flags);				\
+ 	for (src = 0, tgt = (width / 32); src < (width / 32); src++) {	\
+ 		u32 val;						\
+ 									\
+@@ -74,6 +80,7 @@ void __dispatch_internal_##width(int pin
+ 		if (val)						\
+ 			irqs_pending = true;				\
+ 	}								\
++	spin_unlock_irqrestore(&ipic_lock, flags);			\
+ 									\
+ 	if (!irqs_pending)						\
+ 		return;							\
+@@ -94,10 +101,13 @@ static void __internal_irq_mask_##width(
+ 	u32 val;							\
+ 	unsigned reg = (irq / 32) ^ (width/32 - 1);			\
+ 	unsigned bit = irq & 0x1f;					\
++	unsigned long flags;						\
+ 									\
++	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));		\
++	spin_unlock_irqrestore(&ipic_lock, flags);			\
+ }									\
+ 									\
+ static void __internal_irq_unmask_##width(unsigned int irq)		\
+@@ -105,10 +115,13 @@ static void __internal_irq_unmask_##widt
+ 	u32 val;							\
+ 	unsigned reg = (irq / 32) ^ (width/32 - 1);			\
+ 	unsigned bit = irq & 0x1f; 					\
++	unsigned long flags;						\
+ 									\
++	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));		\
++	spin_unlock_irqrestore(&ipic_lock, flags);			\
+ }
+ 
+ BUILD_IPIC_INTERNAL(32);
+@@ -167,8 +180,10 @@ static void bcm63xx_external_irq_mask(st
+ {
+ 	unsigned int irq = d->irq - IRQ_EXTERNAL_BASE;
+ 	u32 reg, regaddr;
++	unsigned long flags;
+ 
+ 	regaddr = get_ext_irq_perf_reg(irq);
++	spin_lock_irqsave(&epic_lock, flags);
+ 	reg = bcm_perf_readl(regaddr);
+ 
+ 	if (BCMCPU_IS_6348())
+@@ -177,6 +192,8 @@ static void bcm63xx_external_irq_mask(st
+ 		reg &= ~EXTIRQ_CFG_MASK(irq % 4);
+ 
+ 	bcm_perf_writel(reg, regaddr);
++	spin_unlock_irqrestore(&epic_lock, flags);
++
+ 	if (is_ext_irq_cascaded)
+ 		internal_irq_mask(irq + ext_irq_start);
+ }
+@@ -185,8 +202,10 @@ static void bcm63xx_external_irq_unmask(
+ {
+ 	unsigned int irq = d->irq - IRQ_EXTERNAL_BASE;
+ 	u32 reg, regaddr;
++	unsigned long flags;
+ 
+ 	regaddr = get_ext_irq_perf_reg(irq);
++	spin_lock_irqsave(&epic_lock, flags);
+ 	reg = bcm_perf_readl(regaddr);
+ 
+ 	if (BCMCPU_IS_6348())
+@@ -195,6 +214,7 @@ static void bcm63xx_external_irq_unmask(
+ 		reg |= EXTIRQ_CFG_MASK(irq % 4);
+ 
+ 	bcm_perf_writel(reg, regaddr);
++	spin_unlock_irqrestore(&epic_lock, flags);
+ 
+ 	if (is_ext_irq_cascaded)
+ 		internal_irq_unmask(irq + ext_irq_start);
+@@ -204,8 +224,10 @@ static void bcm63xx_external_irq_clear(s
+ {
+ 	unsigned int irq = d->irq - IRQ_EXTERNAL_BASE;
+ 	u32 reg, regaddr;
++	unsigned long flags;
+ 
+ 	regaddr = get_ext_irq_perf_reg(irq);
++	spin_lock_irqsave(&epic_lock, flags);
+ 	reg = bcm_perf_readl(regaddr);
+ 
+ 	if (BCMCPU_IS_6348())
+@@ -214,6 +236,7 @@ static void bcm63xx_external_irq_clear(s
+ 		reg |= EXTIRQ_CFG_CLEAR(irq % 4);
+ 
+ 	bcm_perf_writel(reg, regaddr);
++	spin_unlock_irqrestore(&epic_lock, flags);
+ }
+ 
+ static int bcm63xx_external_irq_set_type(struct irq_data *d,
+@@ -222,6 +245,7 @@ static int bcm63xx_external_irq_set_type
+ 	unsigned int irq = d->irq - IRQ_EXTERNAL_BASE;
+ 	u32 reg, regaddr;
+ 	int levelsense, sense, bothedge;
++	unsigned long flags;
+ 
+ 	flow_type &= IRQ_TYPE_SENSE_MASK;
+ 
+@@ -256,6 +280,7 @@ static int bcm63xx_external_irq_set_type
+ 	}
+ 
+ 	regaddr = get_ext_irq_perf_reg(irq);
++	spin_lock_irqsave(&epic_lock, flags);
+ 	reg = bcm_perf_readl(regaddr);
+ 	irq %= 4;
+ 
+@@ -300,6 +325,7 @@ static int bcm63xx_external_irq_set_type
+ 	}
+ 
+ 	bcm_perf_writel(reg, regaddr);
++	spin_unlock_irqrestore(&epic_lock, flags);
+ 
+ 	irqd_set_trigger_type(d, flow_type);
+ 	if (flow_type & (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_LEVEL_HIGH))