soc/amd/genoa: Add function to fetch common code dt configuration

Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Signed-off-by: Varshit Pandya <pandyavarshit@gmail.com>
Change-Id: I5d5d3ff27ab0953844f9bbef30b6487fb480e29b
Reviewed-on: https://review.coreboot.org/c/coreboot/+/76500
Reviewed-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martin.roth@amd.corp-partner.google.com>

src/soc/amd/genoa/Makefile.inc

@@ -2,6 +2,7 @@
 ifeq ($(CONFIG_SOC_AMD_GENOA),y)
 
 all-y		+= mmap_boot.c
+all-y		+= config.c
 
 bootblock-y	+= early_fch.c
 

src/soc/amd/genoa/chip.h

@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef __GENOA_CHIP_H__
+#define __GENOA_CHIP_H__
+
+#include <amdblocks/chip.h>
+
+struct soc_amd_genoa_config {
+	struct soc_amd_common_config common_config;
+};
+
+#endif

src/soc/amd/genoa/config.c

@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <device/device.h>
+#include <amdblocks/chip.h>
+#include <device/device.h>
+#include "chip.h"
+
+const struct soc_amd_common_config *soc_get_common_config(void)
+{
+	const struct soc_amd_genoa_config *cfg = config_of_soc();
+	return &cfg->common_config;
+}