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ARM: proc-*.S: place cpu_reset functions into .idmap.text section

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The CPU reset functions disable the MMU and therefore must be executed
with an identity mapping in place.

This patch places the CPU reset functions into the .idmap.text section,
causing the idmap code to include them as part of the identity mapping.

Acked-by: Dave Martin <dave.martin@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
This commit is contained in:
Will Deacon
2011-11-15 13:25:04 +00:00
parent e6eadc6787
commit 1a4baafa7d
24 changed files with 72 additions and 0 deletions
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3
arch/arm/mm/proc-v6.S
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@@ -55,6 +55,7 @@ ENTRY(cpu_v6_proc_fin)
* - loc - location to jump to for soft reset
*/
.align 5
.pushsection .idmap.text, "ax"
ENTRY(cpu_v6_reset)
mrc p15, 0, r1, c1, c0, 0 @ ctrl register
bic r1, r1, #0x1 @ ...............m
@@ -62,6 +63,8 @@ ENTRY(cpu_v6_reset)
mov r1, #0
mcr p15, 0, r1, c7, c5, 4 @ ISB
mov pc, r0
ENDPROC(cpu_v6_reset)
.popsection
/*
* cpu_v6_do_idle()