Paul Fagerburg submitted this change.
mb/google/geralt: Add USB3 HUB reset funtion to bootblock
After powering on the device, we need to pull USB3_HUB_RST_L up to
enable USB3 Hub.
TEST=boot kernel from USB ok
BUG=b:264841530
Signed-off-by: Bo-Chen Chen <rex-bc.chen@mediatek.com>
Signed-off-by: Liju-Clr Chen <liju-clr.chen@mediatek.com>
Change-Id: I8df35efb78e90a5b3314840fe2eae81d6e501242
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72594
Reviewed-by: Yidi Lin <yidilin@google.com>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
---
M src/mainboard/google/geralt/bootblock.c
M src/mainboard/google/geralt/gpio.h
2 files changed, 30 insertions(+), 0 deletions(-)
diff --git a/src/mainboard/google/geralt/bootblock.c b/src/mainboard/google/geralt/bootblock.c
index 4476aab..2bd69ad 100644
--- a/src/mainboard/google/geralt/bootblock.c
+++ b/src/mainboard/google/geralt/bootblock.c
@@ -2,12 +2,18 @@
#include <bootblock_common.h>
#include <device/mmio.h>
+#include <gpio.h>
#include <soc/gpio.h>
#include <soc/i2c.h>
#include <soc/spi.h>
#include "gpio.h"
+static void usb3_hub_reset(void)
+{
+ gpio_output(GPIO_USB3_HUB_RST_L, 1);
+}
+
void bootblock_mainboard_init(void)
{
mtk_i2c_bus_init(CONFIG_DRIVER_TPM_I2C_BUS, I2C_SPEED_FAST);
@@ -15,4 +21,5 @@
mtk_snfc_init();
setup_chromeos_gpios();
gpio_eint_configure(GPIO_GSC_AP_INT_ODL, IRQ_TYPE_EDGE_RISING);
+ usb3_hub_reset();
}
diff --git a/src/mainboard/google/geralt/gpio.h b/src/mainboard/google/geralt/gpio.h
index 3793779..7eec8f1 100644
--- a/src/mainboard/google/geralt/gpio.h
+++ b/src/mainboard/google/geralt/gpio.h
@@ -22,6 +22,8 @@
#define GPIO_SD_CD_ODL GPIO(I2SIN_MCK)
+#define GPIO_USB3_HUB_RST_L GPIO(MSDC2_DAT0)
+
void setup_chromeos_gpios(void);
#endif
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