nb/intel/haswell: Introduce option to not use MRC.bin
Introduce the `USE_NATIVE_RAMINIT` Kconfig option, which should allow
booting coreboot on Haswell mainboards without the need of the closed
source MRC.bin. For now, this option does not work at all; the needed
magic will be implemented in subsequent commits. Add a config file to
make sure the newly-introduced option gets build-tested.
Change-Id: I46c77586f9b5771624082e07c60c205e578edd8e
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/64176
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
diff --git a/src/northbridge/intel/haswell/native_raminit/Makefile.inc b/src/northbridge/intel/haswell/native_raminit/Makefile.inc
new file mode 100644
index 0000000..8cfb4fb
--- /dev/null
+++ b/src/northbridge/intel/haswell/native_raminit/Makefile.inc
@@ -0,0 +1,3 @@
+## SPDX-License-Identifier: GPL-2.0-or-later
+
+romstage-y += raminit_native.c
diff --git a/src/northbridge/intel/haswell/native_raminit/raminit_native.c b/src/northbridge/intel/haswell/native_raminit/raminit_native.c
new file mode 100644
index 0000000..1aafdf8
--- /dev/null
+++ b/src/northbridge/intel/haswell/native_raminit/raminit_native.c
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include <console/console.h>
+#include <northbridge/intel/haswell/raminit.h>
+
+void perform_raminit(const int s3resume)
+{
+ /*
+ * See, this function's name is a lie. There are more things to
+ * do that memory initialisation, but they are relatively easy.
+ */
+
+ /** TODO: Implement the required magic **/
+ die("NATIVE RAMINIT: More Magic (tm) required.\n");
+}