[U-Boot-Users] [PATCH] ARM: arm920t: Allow use of 'gd' pointer from IRQ

[Harald Welte]

This patch allows us to use the 'gd' pointer (and thus environment
and everything else associated with it) from interrupt context on
arm920t.

Signed-off-by: Harald Welte <laforge at openmoko.org>

Index: u-boot/cpu/arm920t/start.S
===================================================================
--- u-boot.orig/cpu/arm920t/start.S
+++ u-boot/cpu/arm920t/start.S
@@ -415,12 +415,12 @@
 	.macro	irq_save_user_regs
 	sub	sp, sp, #S_FRAME_SIZE
 	stmia	sp, {r0 - r12}			@ Calling r0-r12
-	add     r8, sp, #S_PC
-	stmdb   r8, {sp, lr}^                   @ Calling SP, LR
-	str     lr, [r8, #0]                    @ Save calling PC
+	add     r7, sp, #S_PC
+	stmdb   r7, {sp, lr}^                   @ Calling SP, LR
+	str     lr, [r7, #0]                    @ Save calling PC
 	mrs     r6, spsr
-	str     r6, [r8, #4]                    @ Save CPSR
-	str     r0, [r8, #8]                    @ Save OLD_R0
+	str     r6, [r7, #4]                    @ Save CPSR
+	str     r0, [r7, #8]                    @ Save OLD_R0
 	mov	r0, sp
 	.endm
 
-- 
- Harald Welte <laforge at openmoko.org>          	        http://openmoko.org/
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