[PATCH] ARM: 2700/1: Disable IXP2000 IRQs at bootup

Patch from Deepak Saxena

The IXDP2800 bootloader does not disable IRQs before jumping into
the kernel and this is causing the Grand Unified KGDB to crash
the system when we do an early call to trap_init() and irq handlers
have not yet been registered. This patch disables IRQs before we
jump into the kernel.

Signed-off-by: Deepak Saxena
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

arch/arm/boot/compressed/head-xscale.S

@@ -47,3 +47,10 @@ __XScale_start:
                orr     r7, r7, #(MACH_TYPE_GTWX5715 & 0xff00)
 #endif
 
+#ifdef CONFIG_ARCH_IXP2000
+		mov	r1, #-1
+		mov	r0, #0xd6000000
+		str	r1, [r0, #0x14]
+		str	r1, [r0, #0x18]
+#endif
+