soc/amd/picasso: Move get_soc_config to common location

Multiple files can eventually take advantage of the static function in
i2c.c.  Move get_soc_config() into a new common location for all to use.

Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Change-Id: If5d9be2f74cde370979033365af2e355eb6d814e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38695
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>

src/soc/amd/picasso/Makefile.inc

@@ -78,6 +78,7 @@ ramstage-y += usb.c
 ramstage-y += tsc_freq.c
 ramstage-y += finalize.c
 
+all-y += cfg_util.c
 all-y += reset.c
 
 smm-y += smihandler.c

src/soc/amd/picasso/cfg_util.c

@@ -0,0 +1,30 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <console/console.h>
+#include <device/device.h>
+#include <soc/pci_devs.h>
+#include "chip.h"
+
+const config_t *get_soc_config(void)
+{
+	const struct device *dev = pcidev_path_on_root(GNB_DEVFN);
+
+	if (!dev || !dev->chip_info) {
+		printk(BIOS_ERR, "%s: Could not find SoC devicetree config!\n",
+			__func__);
+		return NULL;
+	}
+
+	return dev->chip_info;
+}

src/soc/amd/picasso/i2c.c

@@ -42,19 +42,6 @@ uintptr_t dw_i2c_base_address(unsigned int bus)
 	return i2c_bus_address[bus - APU_I2C_MIN_BUS];
 }
 
-static const struct soc_amd_picasso_config *get_soc_config(void)
-{
-	const struct device *dev = pcidev_path_on_root(GNB_DEVFN);
-
-	if (!dev || !dev->chip_info) {
-		printk(BIOS_ERR, "%s: Could not find SoC devicetree config!\n",
-			__func__);
-		return NULL;
-	}
-
-	return dev->chip_info;
-}
-
 const struct dw_i2c_bus_config *dw_i2c_get_soc_cfg(unsigned int bus)
 {
 	const struct soc_amd_picasso_config *config;