Change in ...coreboot[master]: drivers/intel/fsp2_0: Use same stack with coreboot

[Subrata Banik (Code Review)]

Subrata Banik has submitted this change and it was merged. ( https://review.coreboot.org/c/coreboot/+/32079 )

Change subject: drivers/intel/fsp2_0: Use same stack with coreboot
......................................................................

drivers/intel/fsp2_0: Use same stack with coreboot

This patch ensures to have same stack base for FSP and coreboot.

Feature added in FSP2.1
- Remove stack swapping from FSP.
- Stack will be shared between coreboot and FSP.

TEST=Build and boot FSP2.1 enable platform like dragonegg, iclrvp.
No car global variable corruption seen after enabling
this feature.

Change-Id: I673b4216d991d8ccad725c3931006a694184106c
Signed-off-by: Subrata Banik 
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32079
Reviewed-by: Patrick Rudolph 
Reviewed-by: Furquan Shaikh 
Tested-by: build bot (Jenkins) 
---
M src/drivers/intel/fsp2_0/memory_init.c
1 file changed, 1 insertion(+), 1 deletion(-)

Approvals:
  build bot (Jenkins): Verified
  Furquan Shaikh: Looks good to me, approved
  Patrick Rudolph: Looks good to me, approved

diff --git a/src/drivers/intel/fsp2_0/memory_init.c b/src/drivers/intel/fsp2_0/memory_init.c
index f7cf0dd..985ee3a 100644
--- a/src/drivers/intel/fsp2_0/memory_init.c
+++ b/src/drivers/intel/fsp2_0/memory_init.c
@@ -172,7 +172,7 @@
     * top and does not reinitialize stack pointer.
     */
    if (CONFIG(FSP_USES_CB_STACK)) {
-		arch_upd->StackBase = (void *)_car_stack_end;
+		arch_upd->StackBase = (void *)_car_stack_start;
    	arch_upd->StackSize = CONFIG_DCACHE_BSP_STACK_SIZE;
    	return CB_SUCCESS;
    }