diff options
author | Mateusz Kulikowski <mateusz.kulikowski@gmail.com> | 2016-03-31 23:12:33 +0200 |
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committer | Tom Rini <trini@konsulko.com> | 2016-04-01 17:18:27 -0400 |
commit | 626f048bbc1463bc96973822f45d12e4368be951 (patch) | |
tree | 5134b46370410601878b24e1527135562e4bc70a /board/qualcomm/dragonboard410c/dragonboard410c.c | |
parent | 085921368b7d1aa30e031cb7b54e5ea707a2155f (diff) |
board: Add Qualcomm Dragonboard 410C support
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>
Diffstat (limited to 'board/qualcomm/dragonboard410c/dragonboard410c.c')
-rw-r--r-- | board/qualcomm/dragonboard410c/dragonboard410c.c | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/board/qualcomm/dragonboard410c/dragonboard410c.c b/board/qualcomm/dragonboard410c/dragonboard410c.c new file mode 100644 index 0000000000..1fa566436b --- /dev/null +++ b/board/qualcomm/dragonboard410c/dragonboard410c.c @@ -0,0 +1,131 @@ +/* + * 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; +} |