[S] Change in coreboot[main]: mb/google/nissa/var/riven: Set VccIn Aux Imon IccMax to 25A

[Felix Held (Code Review)]

Felix Held has submitted this change. ( https://review.coreboot.org/c/coreboot/+/83986?usp=email )

Change subject: mb/google/nissa/var/riven: Set VccIn Aux Imon IccMax to 25A
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mb/google/nissa/var/riven: Set VccIn Aux Imon IccMax to 25A

Iccmax of VccIn_Aux is 25A with MBVR design.

BUG=b:348258637
TEST=Local build successfully and boot to OS normally.

Change-Id: I59c420c03a8f01d185f616a2212798266b4251e0
Signed-off-by: David Wu 
Reviewed-on: https://review.coreboot.org/c/coreboot/+/83986
Tested-by: build bot (Jenkins) 
Reviewed-by: Sheng-Liang Pan 
Reviewed-by: Tyler Wang 
---
M src/mainboard/google/brya/variants/riven/Makefile.mk
A src/mainboard/google/brya/variants/riven/ramstage.c
2 files changed, 13 insertions(+), 0 deletions(-)

Approvals:
  Tyler Wang: Looks good to me, but someone else must approve
  Sheng-Liang Pan: Looks good to me, approved
  build bot (Jenkins): Verified

diff --git a/src/mainboard/google/brya/variants/riven/Makefile.mk b/src/mainboard/google/brya/variants/riven/Makefile.mk
index 86ba20d..393ccfd 100644
--- a/src/mainboard/google/brya/variants/riven/Makefile.mk
+++ b/src/mainboard/google/brya/variants/riven/Makefile.mk
@@ -6,3 +6,4 @@
 ramstage-$(CONFIG_FW_CONFIG) += fw_config.c
 ramstage-$(CONFIG_FW_CONFIG) += variant.c
 ramstage-y += gpio.c
+ramstage-y += ramstage.c
diff --git a/src/mainboard/google/brya/variants/riven/ramstage.c b/src/mainboard/google/brya/variants/riven/ramstage.c
new file mode 100644
index 0000000..5ed9a37f
--- /dev/null
+++ b/src/mainboard/google/brya/variants/riven/ramstage.c
@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include <console/console.h>
+#include <soc/ramstage.h>
+
+void mainboard_silicon_init_params(FSP_S_CONFIG *params)
+{
+	/* Refer to FSP Silicon (soc/intel/alderlake/fsp_params.c)
+	   VccIn Aux Imon IccMax. Values are in 1/4 Amp increments */
+	params->VccInAuxImonIccImax = 100; /* 25000(25A) * 4 / 1000 */
+	printk(BIOS_INFO, "Override VccInAuxImonIccImax = %d\n", params->VccInAuxImonIccImax);
+}