mirror of
https://github.com/brain-hackers/u-boot-brain
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![Jorge Ramirez-Ortiz](/assets/img/avatar_default.png)
We dont need to keep copies of the properties that we are going to fixup since we will be using the dtb provided by the firmware. Signed-off-by: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>
191 lines
4.1 KiB
C
191 lines
4.1 KiB
C
/*
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* Board init file for Dragonboard 410C
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*
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* (C) Copyright 2015 Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <dm.h>
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#include <usb.h>
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#include <asm/gpio.h>
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#include <fdt_support.h>
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DECLARE_GLOBAL_DATA_PTR;
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/* pointer to the device tree ammended by the firmware */
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extern void *fw_dtb;
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void *board_fdt_blob_setup(void)
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{
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if (fdt_magic(fw_dtb) != FDT_MAGIC) {
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printf("Firmware provided invalid dtb!\n");
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return NULL;
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}
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return fw_dtb;
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}
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int dram_init(void)
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{
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gd->ram_size = PHYS_SDRAM_1_SIZE;
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return 0;
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}
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int dram_init_banksize(void)
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{
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gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
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gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
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return 0;
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}
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int board_prepare_usb(enum usb_init_type type)
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{
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static struct udevice *pmic_gpio;
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static struct gpio_desc hub_reset, usb_sel;
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int ret = 0, node;
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if (!pmic_gpio) {
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ret = uclass_get_device_by_name(UCLASS_GPIO,
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"pm8916_gpios@c000",
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&pmic_gpio);
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if (ret < 0) {
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printf("Failed to find pm8916_gpios@c000 node.\n");
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return ret;
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}
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}
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/* Try to request gpios needed to start usb host on dragonboard */
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if (!dm_gpio_is_valid(&hub_reset)) {
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node = fdt_subnode_offset(gd->fdt_blob,
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dev_of_offset(pmic_gpio),
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"usb_hub_reset_pm");
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if (node < 0) {
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printf("Failed to find usb_hub_reset_pm dt node.\n");
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return node;
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}
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ret = gpio_request_by_name_nodev(offset_to_ofnode(node),
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"gpios", 0, &hub_reset, 0);
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if (ret < 0) {
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printf("Failed to request usb_hub_reset_pm gpio.\n");
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return ret;
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}
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}
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if (!dm_gpio_is_valid(&usb_sel)) {
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node = fdt_subnode_offset(gd->fdt_blob,
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dev_of_offset(pmic_gpio),
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"usb_sw_sel_pm");
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if (node < 0) {
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printf("Failed to find usb_sw_sel_pm dt node.\n");
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return 0;
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}
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ret = gpio_request_by_name_nodev(offset_to_ofnode(node),
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"gpios", 0, &usb_sel, 0);
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if (ret < 0) {
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printf("Failed to request usb_sw_sel_pm gpio.\n");
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return ret;
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}
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}
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if (type == USB_INIT_HOST) {
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/* Start USB Hub */
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dm_gpio_set_dir_flags(&hub_reset,
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GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE);
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mdelay(100);
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/* Switch usb to host connectors */
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dm_gpio_set_dir_flags(&usb_sel,
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GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE);
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mdelay(100);
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} else { /* Device */
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/* Disable hub */
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dm_gpio_set_dir_flags(&hub_reset, GPIOD_IS_OUT);
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/* Switch back to device connector */
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dm_gpio_set_dir_flags(&usb_sel, GPIOD_IS_OUT);
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}
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return 0;
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}
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/* Check for vol- button - if pressed - stop autoboot */
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int misc_init_r(void)
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{
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struct udevice *pon;
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struct gpio_desc resin;
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int node, ret;
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ret = uclass_get_device_by_name(UCLASS_GPIO, "pm8916_pon@800", &pon);
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if (ret < 0) {
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printf("Failed to find PMIC pon node. Check device tree\n");
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return 0;
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}
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node = fdt_subnode_offset(gd->fdt_blob, dev_of_offset(pon),
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"key_vol_down");
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if (node < 0) {
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printf("Failed to find key_vol_down node. Check device tree\n");
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return 0;
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}
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if (gpio_request_by_name_nodev(offset_to_ofnode(node), "gpios", 0,
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&resin, 0)) {
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printf("Failed to request key_vol_down button.\n");
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return 0;
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}
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if (dm_gpio_get_value(&resin)) {
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env_set("bootdelay", "-1");
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printf("Power button pressed - dropping to console.\n");
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}
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return 0;
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}
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int board_init(void)
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{
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return 0;
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}
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int ft_board_setup(void *blob, bd_t *bd)
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{
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int offset, len, i;
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const char *mac;
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struct {
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const char *compatible;
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const char *property;
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} fix[] = {
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[0] = {
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/* update the kernel's dtb with wlan mac */
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.compatible = "qcom,wcnss-wlan",
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.property = "local-mac-address",
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},
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[1] = {
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/* update the kernel's dtb with bt mac */
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.compatible = "qcom,wcnss-bt",
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.property = "local-bd-address",
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},
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};
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for (i = 0; i < sizeof(fix) / sizeof(fix[0]); i++) {
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offset = fdt_node_offset_by_compatible(gd->fdt_blob, -1,
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fix[i].compatible);
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if (offset < 0)
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continue;
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mac = fdt_getprop(gd->fdt_blob, offset, fix[i].property, &len);
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if (mac)
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do_fixup_by_compat(blob, fix[i].compatible,
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fix[i].property, mac, ARP_HLEN, 1);
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}
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return 0;
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}
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void reset_cpu(ulong addr)
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{
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psci_system_reset();
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}
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