soc/amd/picasso: rewrite soc_util

This adds proper RV2 silicon and Dali SKU detection using both CPUID
information and some bits from silicon_id in the Picasso misc data HOB
that FSP-M stores in memory.

BUG=b:153779573

Change-Id: I589be3bdac4b94785e6ecacf55235be4ad5673d9
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41630
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>

1 files changed, 23 insertions, 1 deletions

diff --git a/src/soc/amd/picasso/include/soc/soc_util.h b/src/soc/amd/picasso/include/soc/soc_util.h
index 6515761a8a..6399e42bb9 100644
--- a/src/soc/amd/picasso/include/soc/soc_util.h
+++ b/src/soc/amd/picasso/include/soc/soc_util.h
@@ -11,12 +11,34 @@ enum socket_type {
 	SOCKET_FT5 = 3,
 };
 
+enum silicon_type {
+	SILICON_RV1,
+	SILICON_PCO,
+	SILICON_RV2,
+	SILICON_UNKNOWN,
+};
+
+enum soc_type {
+	SOC_PICASSO,
+	SOC_DALI,
+	SOC_POLLOCK,
+	SOC_UNKNOWN,
+};
+
+enum socket_type get_socket_type(void);
+enum silicon_type get_silicon_type(void);
+enum soc_type get_soc_type(void);
+
 void print_socket_type(void);
+void print_silicon_type(void);
+void print_soc_type(void);
 
+/* functions to determine the connectivity feature set */
 bool soc_is_pollock(void);
 bool soc_is_dali(void);
 bool soc_is_picasso(void);
+
+/* function to determine the iGPU type */
 bool soc_is_raven2(void);
-bool soc_is_zen_plus(void);
 
 #endif /* __PICASSO_SOC_UTIL_H__ */