From 61f043de4a6705a49a37abfb09b62c03461382a2 Mon Sep 17 00:00:00 2001
From: Vince Liu <vince-wl.liu@mediatek.corp-partner.google.com>
Date: Wed, 11 Dec 2024 15:12:07 +0800
Subject: [PATCH] mb/google/skywalker: Initialize DPM in ramstage

Add initialization of DPM driver for DRAM low power mode.

BUG=b:379008996
BRANCH=none
TEST=Boot up pass and see log
3200 LPDDR5 chan0(x16) rank0: memory test pass
3200 LPDDR5 chan0(x16) rank1: memory test pass
3200 LPDDR5 chan1(x16) rank0: memory test pass
3200 LPDDR5 chan1(x16) rank1: memory test pass

Signed-off-by: Mike Lin <mike.lin@mediatek.corp-partner.google.com>
Change-Id: I3b72b892d56623e7f3ec2dccfad073a908b51119
Reviewed-on: https://review.coreboot.org/c/coreboot/+/87663
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yidi Lin <yidilin@google.com>
---
 src/mainboard/google/skywalker/mainboard.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/mainboard/google/skywalker/mainboard.c b/src/mainboard/google/skywalker/mainboard.c
index 257faa1f10..44549f46e5 100644
--- a/src/mainboard/google/skywalker/mainboard.c
+++ b/src/mainboard/google/skywalker/mainboard.c
@@ -1,10 +1,12 @@
 /* SPDX-License-Identifier: GPL-2.0-only OR MIT */
 
 #include <device/device.h>
+#include <soc/dpm_v2.h>
 #include <soc/usb.h>
 
 static void mainboard_init(struct device *dev)
 {
+	dpm_init();
 	setup_usb_host();
 }