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- // SPDX-License-Identifier: GPL-2.0+
- /*
- * Board init file for Dragonboard 410C
- *
- * (C) Copyright 2015 Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
- */
- #include <common.h>
- #include <dm.h>
- #include <env.h>
- #include <usb.h>
- #include <asm/gpio.h>
- #include <fdt_support.h>
- #include <environment.h>
- #include <asm/arch/dram.h>
- #include <asm/arch/misc.h>
- DECLARE_GLOBAL_DATA_PTR;
- /* pointer to the device tree ammended by the firmware */
- extern void *fw_dtb;
- void *board_fdt_blob_setup(void)
- {
- if (fdt_magic(fw_dtb) != FDT_MAGIC) {
- printf("Firmware provided invalid dtb!\n");
- return NULL;
- }
- return fw_dtb;
- }
- int dram_init(void)
- {
- gd->ram_size = PHYS_SDRAM_1_SIZE;
- return 0;
- }
- int dram_init_banksize(void)
- {
- gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
- gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
- return 0;
- }
- int board_usb_init(int index, enum usb_init_type init)
- {
- 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,
- dev_of_offset(pmic_gpio),
- "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(offset_to_ofnode(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,
- dev_of_offset(pmic_gpio),
- "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(offset_to_ofnode(node),
- "gpios", 0, &usb_sel, 0);
- if (ret < 0) {
- printf("Failed to request usb_sw_sel_pm gpio.\n");
- return ret;
- }
- }
- if (init == 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;
- }
- /* 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, dev_of_offset(pon),
- "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(offset_to_ofnode(node), "gpios", 0,
- &resin, 0)) {
- printf("Failed to request key_vol_down button.\n");
- return 0;
- }
- if (dm_gpio_get_value(&resin)) {
- env_set("bootdelay", "-1");
- env_set("bootcmd", "fastboot 0");
- printf("key_vol_down pressed - Starting fastboot.\n");
- }
- return 0;
- }
- int board_init(void)
- {
- return 0;
- }
- int board_late_init(void)
- {
- char serial[16];
- memset(serial, 0, 16);
- snprintf(serial, 13, "%x", msm_board_serial());
- env_set("serial#", serial);
- return 0;
- }
- /* Fixup of DTB for Linux Kernel
- * 1. Fixup installed DRAM.
- * 2. Fixup WLAN/BT Mac address:
- * First, check if MAC addresses for WLAN/BT exists as environemnt
- * variables wlanaddr,btaddr. if not, generate a unique address.
- */
- int ft_board_setup(void *blob, bd_t *bd)
- {
- u8 mac[ARP_HLEN];
- msm_fixup_memory(blob);
- if (!eth_env_get_enetaddr("wlanaddr", mac)) {
- msm_generate_mac_addr(mac);
- };
- do_fixup_by_compat(blob, "qcom,wcnss-wlan",
- "local-mac-address", mac, ARP_HLEN, 1);
- if (!eth_env_get_enetaddr("btaddr", mac)) {
- msm_generate_mac_addr(mac);
- /* The BD address is same as WLAN MAC address but with
- * least significant bit flipped.
- */
- mac[0] ^= 0x01;
- };
- do_fixup_by_compat(blob, "qcom,wcnss-bt",
- "local-bd-address", mac, ARP_HLEN, 1);
- return 0;
- }
- void reset_cpu(ulong addr)
- {
- psci_system_reset();
- }
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