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 void 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;
29 int board_prepare_usb(enum usb_init_type type)
31 static struct udevice *pmic_gpio;
32 static struct gpio_desc hub_reset, usb_sel;
36 ret = uclass_get_device_by_name(UCLASS_GPIO,
40 printf("Failed to find pm8916_gpios@c000 node.\n");
45 /* Try to request gpios needed to start usb host on dragonboard */
46 if (!dm_gpio_is_valid(&hub_reset)) {
47 node = fdt_subnode_offset(gd->fdt_blob,
48 dev_of_offset(pmic_gpio),
51 printf("Failed to find usb_hub_reset_pm dt node.\n");
54 ret = gpio_request_by_name_nodev(gd->fdt_blob, node, "gpios", 0,
57 printf("Failed to request usb_hub_reset_pm gpio.\n");
62 if (!dm_gpio_is_valid(&usb_sel)) {
63 node = fdt_subnode_offset(gd->fdt_blob,
64 dev_of_offset(pmic_gpio),
67 printf("Failed to find usb_sw_sel_pm dt node.\n");
70 ret = gpio_request_by_name_nodev(gd->fdt_blob, node, "gpios", 0,
73 printf("Failed to request usb_sw_sel_pm gpio.\n");
78 if (type == USB_INIT_HOST) {
80 dm_gpio_set_dir_flags(&hub_reset,
81 GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE);
83 /* Switch usb to host connectors */
84 dm_gpio_set_dir_flags(&usb_sel,
85 GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE);
89 dm_gpio_set_dir_flags(&hub_reset, GPIOD_IS_OUT);
90 /* Switch back to device connector */
91 dm_gpio_set_dir_flags(&usb_sel, GPIOD_IS_OUT);
102 /* Check for vol- button - if pressed - stop autoboot */
103 int misc_init_r(void)
106 struct gpio_desc resin;
109 ret = uclass_get_device_by_name(UCLASS_GPIO, "pm8916_pon@800", &pon);
111 printf("Failed to find PMIC pon node. Check device tree\n");
115 node = fdt_subnode_offset(gd->fdt_blob, dev_of_offset(pon),
118 printf("Failed to find key_vol_down node. Check device tree\n");
122 if (gpio_request_by_name_nodev(gd->fdt_blob, node, "gpios", 0, &resin,
124 printf("Failed to request key_vol_down button.\n");
128 if (dm_gpio_get_value(&resin)) {
129 setenv("bootdelay", "-1");
130 printf("Power button pressed - dropping to console.\n");