2 * Board init file for Dragonboard 410C
4 * (C) Copyright 2015 Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
6 * SPDX-License-Identifier: GPL-2.0+
14 DECLARE_GLOBAL_DATA_PTR;
18 gd->ram_size = PHYS_SDRAM_1_SIZE;
22 int dram_init_banksize(void)
24 gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
25 gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
31 int board_prepare_usb(enum usb_init_type type)
33 static struct udevice *pmic_gpio;
34 static struct gpio_desc hub_reset, usb_sel;
38 ret = uclass_get_device_by_name(UCLASS_GPIO,
42 printf("Failed to find pm8916_gpios@c000 node.\n");
47 /* Try to request gpios needed to start usb host on dragonboard */
48 if (!dm_gpio_is_valid(&hub_reset)) {
49 node = fdt_subnode_offset(gd->fdt_blob,
50 dev_of_offset(pmic_gpio),
53 printf("Failed to find usb_hub_reset_pm dt node.\n");
56 ret = gpio_request_by_name_nodev(gd->fdt_blob, node, "gpios", 0,
59 printf("Failed to request usb_hub_reset_pm gpio.\n");
64 if (!dm_gpio_is_valid(&usb_sel)) {
65 node = fdt_subnode_offset(gd->fdt_blob,
66 dev_of_offset(pmic_gpio),
69 printf("Failed to find usb_sw_sel_pm dt node.\n");
72 ret = gpio_request_by_name_nodev(gd->fdt_blob, node, "gpios", 0,
75 printf("Failed to request usb_sw_sel_pm gpio.\n");
80 if (type == USB_INIT_HOST) {
82 dm_gpio_set_dir_flags(&hub_reset,
83 GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE);
85 /* Switch usb to host connectors */
86 dm_gpio_set_dir_flags(&usb_sel,
87 GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE);
91 dm_gpio_set_dir_flags(&hub_reset, GPIOD_IS_OUT);
92 /* Switch back to device connector */
93 dm_gpio_set_dir_flags(&usb_sel, GPIOD_IS_OUT);
104 /* Check for vol- button - if pressed - stop autoboot */
105 int misc_init_r(void)
108 struct gpio_desc resin;
111 ret = uclass_get_device_by_name(UCLASS_GPIO, "pm8916_pon@800", &pon);
113 printf("Failed to find PMIC pon node. Check device tree\n");
117 node = fdt_subnode_offset(gd->fdt_blob, dev_of_offset(pon),
120 printf("Failed to find key_vol_down node. Check device tree\n");
124 if (gpio_request_by_name_nodev(gd->fdt_blob, node, "gpios", 0, &resin,
126 printf("Failed to request key_vol_down button.\n");
130 if (dm_gpio_get_value(&resin)) {
131 setenv("bootdelay", "-1");
132 printf("Power button pressed - dropping to console.\n");