[coreboot-gerrit] Change in coreboot[master]: drivers/intel/fsp1.1/car: Halt on improperly configured coreboot

[Arthur Heymans (Code Review)]

Arthur Heymans has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/37281 )

Change subject: drivers/intel/fsp1.1/car: Halt on improperly configured coreboot
......................................................................

drivers/intel/fsp1.1/car: Halt on improperly configured coreboot

Test if Kconfig symbols actually match what FSP does. If it is not
the case it best to halt right away instead of continuing to boot with
possibly hard to debug problems.

Change-Id: Ieec8259149cc8fd71c40fd1511a6a2cfa67c5337
Signed-off-by: Arthur Heymans 
---
M src/drivers/intel/fsp1_1/cache_as_ram.S
1 file changed, 5 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/81/37281/1

diff --git a/src/drivers/intel/fsp1_1/cache_as_ram.S b/src/drivers/intel/fsp1_1/cache_as_ram.S
index fb39884..748c267 100644
--- a/src/drivers/intel/fsp1_1/cache_as_ram.S
+++ b/src/drivers/intel/fsp1_1/cache_as_ram.S
@@ -143,6 +143,11 @@
    cmp	$0, %eax
    jne	halt2

+	/* Check sanity of coreboot Kconfig symbols that need to match what FSP
+	   does */
+	cmpl	$(CONFIG_DCACHE_RAM_BASE + CONFIG_DCACHE_RAM_SIZE), %edx
+	jne	.halt_forever
+
    /* Setup BSP stack */
    movl	_ecar_stack, %esp