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ARM: Unmask aborts very early in the bootblock.

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It's better to recognize aborts when they occur than to mask them to
discover them later without knowing where they actually came from.

Change-Id: Ic8f5321415f411afac94b5ef9dd440790df6d82c
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3065
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Tested-by: build bot (Jenkins)
This commit is contained in:
Gabe Black
2013-04-10 14:32:56 -07:00
parent 8d80a3fb9f
commit 514f202939
1 changed files with 4 additions and 1 deletions
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5
src/arch/armv7/bootblock.inc
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@@ -53,11 +53,14 @@ _cbfs_master_header:
reset:
/*
* set the cpu to SVC32 mode
* Set the cpu to SVC32 mode and unmask aborts. Aborts might happen
* before logging is turned on and may crash the machine, but at least
* the problem will show up near the code that causes it.
*/
mrs r0, cpsr
bic r0, r0, #0x1f
orr r0, r0, #0xd3
bic r0, r0, #0x100
msr cpsr_cxsf,r0
/*