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bsps/arm: Copy vector table only if necessary

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This commit is contained in:
Sebastian Huber
2013-05-02 13:37:30 +02:00
parent 27690ec38e
commit 9ce658030a
1 changed files with 4 additions and 0 deletions
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4
c/src/lib/libbsp/arm/shared/start/start.S
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@@ -186,11 +186,15 @@ bsp_start_hook_0_done:
ldr r0, =bsp_vector_table_begin
adr r1, bsp_start_vector_table_begin
cmp r0, r1
beq bsp_vector_table_copy_done
ldmia r1!, {r2-r9}
stmia r0!, {r2-r9}
ldmia r1!, {r2-r9}
stmia r0!, {r2-r9}
bsp_vector_table_copy_done:
SWITCH_FROM_ARM_TO_THUMB r0
/* Branch to start hook 1 */