[coreboot-gerrit] Patch set updated for coreboot: OBSOLETE: soc/apollolake/cache_as_ram: Fix initial stack pointer calculation

[Andrey Petrov (andrey.petrov@intel.com)]

Andrey Petrov (andrey.petrov at intel.com) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/13314

-gerrit

commit 866c2a1e5c893db30f4b12f7beb0a321ed905b44
Author: Alexandru Gagniuc <alexandrux.gagniuc at intel.com>
Date:   Thu Oct 22 09:28:13 2015 -0700

    OBSOLETE: soc/apollolake/cache_as_ram: Fix initial stack pointer calculation
    
    We want the initial stack pointer to point within the region allocated
    for stack, and not above it. This means we need to place it four
    bytes below the end address, so the first push does not write above
    the allocated stack region.
    
    Change-Id: I288b3c0f04b9e3be742012124ecac7825874cb7f
    Signed-off-by: Alexandru Gagniuc <alexandrux.gagniuc at intel.com>
---
 src/soc/intel/apollolake/bootblock/cache_as_ram.S | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/soc/intel/apollolake/bootblock/cache_as_ram.S b/src/soc/intel/apollolake/bootblock/cache_as_ram.S
index 6ecfa86..e496087 100644
--- a/src/soc/intel/apollolake/bootblock/cache_as_ram.S
+++ b/src/soc/intel/apollolake/bootblock/cache_as_ram.S
@@ -124,7 +124,7 @@ car_init_done:
 
 	/* Setup bootblock stack */
 	mov	esp, CONFIG_DCACHE_RAM_BASE
-	add 	esp, CONFIG_DCACHE_RAM_BOOTBLOCK_STACK_SIZE
+	add	esp, CONFIG_DCACHE_RAM_BOOTBLOCK_STACK_SIZE - 4
 
 	/* Make sure CAR region is executable */
 	mov	ecx, 0x120