mb/intel/shadowmountain: Add the romstage code

This patch includes the romstage changes for the
shadowmountain board.

BUG=b:175808146
TEST= Build and boot shadowmountain board till early ramstage.

Signed-off-by: V Sowmya <v.sowmya@intel.com>
Change-Id: Ifd0bbcea9d4916d82bb1e3c275dd79d97a79727a
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49731
Reviewed-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-by: Aamir Bohra <aamir.bohra@intel.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

1 files changed, 23 insertions, 0 deletions

diff --git a/src/mainboard/intel/shadowmountain/romstage.c b/src/mainboard/intel/shadowmountain/romstage.c
new file mode 100644
index 0000000000..1e29e8029d
--- /dev/null
+++ b/src/mainboard/intel/shadowmountain/romstage.c
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#include <assert.h>
+#include <console/console.h>
+#include <fsp/api.h>
+#include <soc/romstage.h>
+#include <spd_bin.h>
+#include <string.h>
+#include <soc/meminit.h>
+#include <baseboard/variants.h>
+#include <cbfs.h>
+
+void mainboard_memory_init_params(FSPM_UPD *mupd)
+{
+	const struct mb_cfg *mem_config = variant_memory_params();
+	const bool half_populated = false;
+
+	const struct mem_spd lp5_spd_info = {
+		.topo = MEM_TOPO_MEMORY_DOWN,
+		.cbfs_index = variant_memory_sku(),
+	};
+
+	memcfg_init(&mupd->FspmConfig, mem_config, &lp5_spd_info, half_populated);
+}