[S] Change in coreboot[master]: mb/google/geralt: Pass reset gpio parameter to BL31

[Rex-BC Chen (Code Review)]

Rex-BC Chen has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/67357 )

Change subject: mb/google/geralt: Pass reset gpio parameter to BL31
......................................................................

mb/google/geralt: 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:233720142

Signed-off-by: Bo-Chen Chen 
Change-Id: Ifdfbd6bd82f64b084f6349cb617443053c89a3f1
---
M src/mainboard/google/geralt/mainboard.c
1 file changed, 34 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/57/67357/1

diff --git a/src/mainboard/google/geralt/mainboard.c b/src/mainboard/google/geralt/mainboard.c
index 75b8bb5..3267da3 100644
--- a/src/mainboard/google/geralt/mainboard.c
+++ b/src/mainboard/google/geralt/mainboard.c
@@ -1,14 +1,32 @@
 /* SPDX-License-Identifier: GPL-2.0-only */

+#include <bl31.h>
 #include <device/device.h>
 #include <soc/msdc.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_AP_EC_WARM_RST_REQ.id;
+	register_bl31_aux_param(&param_reset.h);
+}
+
 static void mainboard_init(struct device *dev)
 {
    mtk_msdc_configure_emmc(true);
    mtk_msdc_configure_sdcard();
    setup_usb_host();
+
+	register_reset_to_bl31();
 }

static void mainboard_enable(struct device *dev)