From 5b268a5654a474e555d2b1b39f441a61d82495c4 Mon Sep 17 00:00:00 2001
From: Felix Held <felix-coreboot@felixheld.de>
Date: Mon, 3 Mar 2025 15:36:37 +0100
Subject: [PATCH] soc/amd/common/cpu/noncar: report 100 MHz external clock in
 smbios

All AMD SoCs from family 17h on, so all using a non-CAR configuration
to boot, have a reference clock of 100 MHz, so report this for all of
them in the SMBIOS tables.

Change-Id: I9573cbb8ec816c797314415d0c60c72abf23a094
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/86690
Reviewed-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
---
 src/soc/amd/common/block/cpu/noncar/cpu.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/soc/amd/common/block/cpu/noncar/cpu.c b/src/soc/amd/common/block/cpu/noncar/cpu.c
index 136cb42e0e..74b29cdb66 100644
--- a/src/soc/amd/common/block/cpu/noncar/cpu.c
+++ b/src/soc/amd/common/block/cpu/noncar/cpu.c
@@ -26,6 +26,11 @@ unsigned int smbios_processor_family(struct cpuid_result res)
 	return 0x6b; /* Zen */
 }
 
+unsigned int smbios_processor_external_clock(void)
+{
+	return 100; /* 100 MHz */
+}
+
 void set_cstate_io_addr(void)
 {
 	msr_t cst_addr;