[coreboot-gerrit] [S] Change in coreboot[master]: mb/google/geralt: Add USB3 HUB reset funtion to bootblock

[Paul Fagerburg (Code Review)]

Paul Fagerburg has submitted this change. ( https://review.coreboot.org/c/coreboot/+/72594 )

Change subject: mb/google/geralt: Add USB3 HUB reset funtion to bootblock
......................................................................

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 
Signed-off-by: Liju-Clr Chen 
Change-Id: I8df35efb78e90a5b3314840fe2eae81d6e501242
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72594
Reviewed-by: Yidi Lin 
Reviewed-by: Yu-Ping Wu 
Tested-by: build bot (Jenkins) 
---
M src/mainboard/google/geralt/bootblock.c
M src/mainboard/google/geralt/gpio.h
2 files changed, 30 insertions(+), 0 deletions(-)

Approvals:
  build bot (Jenkins): Verified
  Yu-Ping Wu: Looks good to me, approved
  Yidi Lin: Looks good to me, but someone else must approve
  Rex-BC Chen: Looks good to me, but someone else must approve

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