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drivers/intel/fsp1_1/cache_as_ram.S: Use _car_stack area for stack

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Top of Temp RAM is used as bootloader stack, which is the
_car_region_end area. This area is not equal to CAR stack area as
defined in car.ld file.

Use _ecar_stack (end of CAR stack) as starting stack location.

Tested VBOOT, Vendorboot security and no security on Facebook FBG1701.

Change-Id: I16b077f60560de334361b1f0d3758ab1a5cbe895
Signed-off-by: Frans Hendriks <fhendriks@eltan.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47737
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Wim Vervoorn <wvervoorn@eltan.com>
Reviewed-by: Michał Żygowski <michal.zygowski@3mdeb.com>
Reviewed-by: Christian Walter <christian.walter@9elements.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Frans Hendriks 2020-11-19 08:10:47 +01:00 committed by Arthur Heymans
parent 2832d11dd1
commit 7ba970aa78
1 changed files with 1 additions and 1 deletions
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src/drivers/intel/fsp1_1/cache_as_ram.S
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@ -133,7 +133,7 @@ CAR_init_done:
jne halt2
/* Setup bootloader stack */
movl %edx, %esp
movl $_ecar_stack, %esp
/*
* ebp: FSP_INFO_HEADER address