mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-25 06:00:43 +00:00
626f048bbc
This commit add support for 96Boards Dragonboard410C. It is board based on APQ8016 Qualcomm SoC, complying with 96boards specification. Features (present out of the box): - 4x Cortex A53 (ARMv8) - 2x USB Host port - 1x USB Device port - 4x LEDs - 1x HDMI connector - 1x uSD connector - 3x buttons (Power, Vol+, Vol-/Reset) - WIFI, Bluetooth with integrated antenna - 8GiB eMMC U-Boot boots chained with fastboot in 64-bit mode. For detailed build instructions see readme.txt in board directory. Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com> Tested-by: Simon Glass <sjg@chromium.org>
131 lines
2.9 KiB
C
131 lines
2.9 KiB
C
/*
|
|
* Board init file for Dragonboard 410C
|
|
*
|
|
* (C) Copyright 2015 Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <dm.h>
|
|
#include <usb.h>
|
|
#include <asm/gpio.h>
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
int dram_init(void)
|
|
{
|
|
gd->ram_size = PHYS_SDRAM_1_SIZE;
|
|
return 0;
|
|
}
|
|
|
|
void dram_init_banksize(void)
|
|
{
|
|
gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
|
|
gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
|
|
}
|
|
|
|
|
|
int board_prepare_usb(enum usb_init_type type)
|
|
{
|
|
static struct udevice *pmic_gpio;
|
|
static struct gpio_desc hub_reset, usb_sel;
|
|
int ret = 0, node;
|
|
|
|
if (!pmic_gpio) {
|
|
ret = uclass_get_device_by_name(UCLASS_GPIO,
|
|
"pm8916_gpios@c000",
|
|
&pmic_gpio);
|
|
if (ret < 0) {
|
|
printf("Failed to find pm8916_gpios@c000 node.\n");
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
/* Try to request gpios needed to start usb host on dragonboard */
|
|
if (!dm_gpio_is_valid(&hub_reset)) {
|
|
node = fdt_subnode_offset(gd->fdt_blob, pmic_gpio->of_offset,
|
|
"usb_hub_reset_pm");
|
|
if (node < 0) {
|
|
printf("Failed to find usb_hub_reset_pm dt node.\n");
|
|
return node;
|
|
}
|
|
ret = gpio_request_by_name_nodev(gd->fdt_blob, node, "gpios", 0,
|
|
&hub_reset, 0);
|
|
if (ret < 0) {
|
|
printf("Failed to request usb_hub_reset_pm gpio.\n");
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
if (!dm_gpio_is_valid(&usb_sel)) {
|
|
node = fdt_subnode_offset(gd->fdt_blob, pmic_gpio->of_offset,
|
|
"usb_sw_sel_pm");
|
|
if (node < 0) {
|
|
printf("Failed to find usb_sw_sel_pm dt node.\n");
|
|
return 0;
|
|
}
|
|
ret = gpio_request_by_name_nodev(gd->fdt_blob, node, "gpios", 0,
|
|
&usb_sel, 0);
|
|
if (ret < 0) {
|
|
printf("Failed to request usb_sw_sel_pm gpio.\n");
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
if (type == USB_INIT_HOST) {
|
|
/* Start USB Hub */
|
|
dm_gpio_set_dir_flags(&hub_reset,
|
|
GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE);
|
|
mdelay(100);
|
|
/* Switch usb to host connectors */
|
|
dm_gpio_set_dir_flags(&usb_sel,
|
|
GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE);
|
|
mdelay(100);
|
|
} else { /* Device */
|
|
/* Disable hub */
|
|
dm_gpio_set_dir_flags(&hub_reset, GPIOD_IS_OUT);
|
|
/* Switch back to device connector */
|
|
dm_gpio_set_dir_flags(&usb_sel, GPIOD_IS_OUT);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int board_init(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/* Check for vol- button - if pressed - stop autoboot */
|
|
int misc_init_r(void)
|
|
{
|
|
struct udevice *pon;
|
|
struct gpio_desc resin;
|
|
int node, ret;
|
|
|
|
ret = uclass_get_device_by_name(UCLASS_GPIO, "pm8916_pon@800", &pon);
|
|
if (ret < 0) {
|
|
printf("Failed to find PMIC pon node. Check device tree\n");
|
|
return 0;
|
|
}
|
|
|
|
node = fdt_subnode_offset(gd->fdt_blob, pon->of_offset, "key_vol_down");
|
|
if (node < 0) {
|
|
printf("Failed to find key_vol_down node. Check device tree\n");
|
|
return 0;
|
|
}
|
|
|
|
if (gpio_request_by_name_nodev(gd->fdt_blob, node, "gpios", 0, &resin,
|
|
0)) {
|
|
printf("Failed to request key_vol_down button.\n");
|
|
return 0;
|
|
}
|
|
|
|
if (dm_gpio_get_value(&resin)) {
|
|
setenv("bootdelay", "-1");
|
|
printf("Power button pressed - dropping to console.\n");
|
|
}
|
|
|
|
return 0;
|
|
}
|