mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-20 18:23:08 +00:00
106822de5e
For USB3 host controller to detect devices on the bus it is required to enable a PMIC GPIO: usb_vbus_boost_pin. So enable that during board specific initialization. And since this PMIC GPIO parsing is quite u-boot specific, so add a DT override to qcs404-evb-uboot.dtsi to represent usb_vbus_boost_pin. Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
62 lines
1.2 KiB
C
62 lines
1.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Board init file for QCS404-EVB
|
|
*
|
|
* (C) Copyright 2022 Sumit Garg <sumit.garg@linaro.org>
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <cpu_func.h>
|
|
#include <dm.h>
|
|
#include <env.h>
|
|
#include <init.h>
|
|
#include <asm/cache.h>
|
|
#include <asm/gpio.h>
|
|
#include <asm/global_data.h>
|
|
#include <fdt_support.h>
|
|
#include <asm/arch/dram.h>
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
int dram_init(void)
|
|
{
|
|
return fdtdec_setup_mem_size_base();
|
|
}
|
|
|
|
int board_init(void)
|
|
{
|
|
struct udevice *pmic_gpio;
|
|
struct gpio_desc usb_vbus_boost_pin;
|
|
int ret, node;
|
|
|
|
ret = uclass_get_device_by_name(UCLASS_GPIO,
|
|
"pms405_gpios@c000",
|
|
&pmic_gpio);
|
|
if (ret < 0) {
|
|
printf("Failed to find pms405_gpios@c000 node.\n");
|
|
return ret;
|
|
}
|
|
|
|
node = fdt_subnode_offset(gd->fdt_blob, dev_of_offset(pmic_gpio),
|
|
"usb_vbus_boost_pin");
|
|
if (node < 0) {
|
|
printf("Failed to find usb_hub_reset_pm dt node.\n");
|
|
return node;
|
|
}
|
|
ret = gpio_request_by_name_nodev(offset_to_ofnode(node), "gpios", 0,
|
|
&usb_vbus_boost_pin, 0);
|
|
if (ret < 0) {
|
|
printf("Failed to request usb_hub_reset_pm gpio.\n");
|
|
return ret;
|
|
}
|
|
|
|
dm_gpio_set_dir_flags(&usb_vbus_boost_pin,
|
|
GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE);
|
|
|
|
return 0;
|
|
}
|
|
|
|
void reset_cpu(void)
|
|
{
|
|
psci_system_reset();
|
|
}
|