northbridge/intel/sandybridge/raminit: Prepare MRC path for x86_64
- Remove pointers in argument list passed to MRC to make sure the struct
has the same size on x86_64 as on x86_32.
- Add assembly wrapper to call the MRC with argument in EAX.
- Wrap calling MRC in protected_mode_call_2arg, which is a stub on x86_32
Tested: Boots on Lenovo X220 using MRC in x86_32 and x86_64 mode.
Change-Id: Id755e7381c5a94360e3511c53432d68b7687df67
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79751
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Jérémy Compostella <jeremy.compostella@intel.com>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
diff --git a/src/northbridge/intel/sandybridge/Makefile.inc b/src/northbridge/intel/sandybridge/Makefile.inc
index 36fc16b..6ecb17a 100644
--- a/src/northbridge/intel/sandybridge/Makefile.inc
+++ b/src/northbridge/intel/sandybridge/Makefile.inc
@@ -27,6 +27,7 @@
romstage-y += raminit_tables.c
else
romstage-y += raminit_mrc.c
+romstage-y += mrc_wrapper.S
cbfs-files-y += mrc.bin
mrc.bin-file := $(call strip_quotes,$(CONFIG_MRC_FILE))
mrc.bin-position := 0xfffa0000