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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 <cpu_func.h>
#include <dm.h>
#include <env.h>
#include <init.h>
#include <net.h>
#include <usb.h>
#include <asm/cache.h>
#include <asm/gpio.h>
#include <fdt_support.h>
#include <asm/arch/dram.h>
#include <asm/arch/misc.h>
#include <linux/delay.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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