brcm63xx: add preliminary support for 3.13

Add support for 3.13 as a development kernel. Mostly untested, only net
booted. If flashed may brick your router or kill your cat.

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

SVN-Revision: 39746

1 files changed, 70 insertions, 0 deletions

diff --git a/target/linux/brcm63xx/patches-3.13/323-MIPS-BCM63XX-add-pin-argument-to-dispatch-internal.patch b/target/linux/brcm63xx/patches-3.13/323-MIPS-BCM63XX-add-pin-argument-to-dispatch-internal.patch
new file mode 100644
index 0000000000..1b8921cbf2
--- /dev/null
+++ b/target/linux/brcm63xx/patches-3.13/323-MIPS-BCM63XX-add-pin-argument-to-dispatch-internal.patch
@@ -0,0 +1,70 @@
+From a33bb660c712447ba8b561109cda6734954a6efa Mon Sep 17 00:00:00 2001
+From: Jonas Gorski <jogo@openwrt.org>
+Date: Fri, 26 Apr 2013 11:21:16 +0200
+Subject: [PATCH 34/53] MIPS: BCM63XX: add pin argument to dispatch internal
+
+Signed-off-by: Jonas Gorski <jogo@openwrt.org>
+---
+ arch/mips/bcm63xx/irq.c | 18 ++++++++++--------
+ 1 file changed, 10 insertions(+), 8 deletions(-)
+
+--- a/arch/mips/bcm63xx/irq.c
++++ b/arch/mips/bcm63xx/irq.c
+@@ -19,9 +19,10 @@
+ #include <bcm63xx_io.h>
+ #include <bcm63xx_irq.h>
+ 
++
+ static u32 irq_stat_addr[2];
+ static u32 irq_mask_addr[2];
+-static void (*dispatch_internal)(void);
++static void (*dispatch_internal)(int pin);
+ static int is_ext_irq_cascaded;
+ static unsigned int ext_irq_count;
+ static unsigned int ext_irq_start, ext_irq_end;
+@@ -54,19 +55,20 @@ static inline void handle_internal(int i
+  */
+ 
+ #define BUILD_IPIC_INTERNAL(width)					\
+-void __dispatch_internal_##width(void)					\
++void __dispatch_internal_##width(int pin)				\
+ {									\
+ 	u32 pending[width / 32];					\
+ 	unsigned int src, tgt;						\
+ 	bool irqs_pending = false;					\
+-	static int i;							\
++	static int i[2];						\
++	int *next = &i[pin];						\
+ 									\
+ 	/* read registers in reverse order */				\
+ 	for (src = 0, tgt = (width / 32); src < (width / 32); src++) {	\
+ 		u32 val;						\
+ 									\
+-		val = bcm_readl(irq_stat_addr[0] + src * sizeof(u32));	\
+-		val &= bcm_readl(irq_mask_addr[0] + src * sizeof(u32));	\
++		val = bcm_readl(irq_stat_addr[pin] + src * sizeof(u32)); \
++		val &= bcm_readl(irq_mask_addr[pin] + src * sizeof(u32)); \
+ 		pending[--tgt] = val;					\
+ 									\
+ 		if (val)						\
+@@ -77,9 +79,9 @@ void __dispatch_internal_##width(void)
+ 		return;							\
+ 									\
+ 	while (1) {							\
+-		int to_call = i;					\
++		int to_call = *next;					\
+ 									\
+-		i = (i + 1) & (width - 1);				\
++		*next = (*next + 1) & (width - 1);			\
+ 		if (pending[to_call / 32] & (1 << (to_call & 0x1f))) {	\
+ 			handle_internal(to_call);			\
+ 			break;						\
+@@ -129,7 +131,7 @@ asmlinkage void plat_irq_dispatch(void)
+ 		if (cause & CAUSEF_IP1)
+ 			do_IRQ(1);
+ 		if (cause & CAUSEF_IP2)
+-			dispatch_internal();
++			dispatch_internal(0);
+ 		if (!is_ext_irq_cascaded) {
+ 			if (cause & CAUSEF_IP3)
+ 				do_IRQ(IRQ_EXT_0);