From 64f13197028ce6634c9de46ba2326b7611b62f0a Mon Sep 17 00:00:00 2001
From: Rex-BC Chen <rex-bc.chen@mediatek.corp-partner.google.com>
Date: Thu, 18 Nov 2021 12:55:01 +0800
Subject: [PATCH] mb/google/corsola: Pass reset gpio parameter to BL31

To support gpio reset SoC, we need to pass the reset gpio parameter to
BL31.

TEST=build pass
BUG=b:202871018

Cq-Depend: chromium:3188686
Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
Change-Id: I48d8d004ea92e950d0040a11133c57c121b86af3
Reviewed-on: https://review.coreboot.org/c/coreboot/+/59824
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
---
 src/mainboard/google/corsola/mainboard.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/src/mainboard/google/corsola/mainboard.c b/src/mainboard/google/corsola/mainboard.c
index d3d55a297f..fa4aa18597 100644
--- a/src/mainboard/google/corsola/mainboard.c
+++ b/src/mainboard/google/corsola/mainboard.c
@@ -1,11 +1,27 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
+#include <bl31.h>
 #include <console/console.h>
 #include <device/device.h>
 #include <soc/msdc.h>
 #include <soc/spm.h>
 #include <soc/usb.h>
 
+#include "gpio.h"
+
+#include <arm-trusted-firmware/include/export/plat/mediatek/common/plat_params_exp.h>
+
+static void register_reset_to_bl31(void)
+{
+	static struct bl_aux_param_gpio param_reset = {
+		.h = { .type = BL_AUX_PARAM_MTK_RESET_GPIO },
+		.gpio = { .polarity = ARM_TF_GPIO_LEVEL_HIGH },
+	};
+
+	param_reset.gpio.index = GPIO_RESET.id;
+	register_bl31_aux_param(&param_reset.h);
+}
+
 static void mainboard_init(struct device *dev)
 {
 	mtk_msdc_configure_emmc(true);
@@ -19,6 +35,8 @@ static void mainboard_init(struct device *dev)
 
 	if (spm_init())
 		printk(BIOS_ERR, "spm init failed, system suspend may not work\n");
+
+	register_reset_to_bl31();
 }
 
 static void mainboard_enable(struct device *dev)