| // SPDX-License-Identifier: GPL-2.0+ |
| /* |
| * Common init part for boards based on SDM845 |
| * |
| * (C) Copyright 2021 Dzmitry Sankouski <dsankouski@gmail.com> |
| */ |
| |
| #include <init.h> |
| #include <env.h> |
| #include <common.h> |
| #include <asm/system.h> |
| #include <asm/gpio.h> |
| #include <dm.h> |
| |
| DECLARE_GLOBAL_DATA_PTR; |
| |
| int dram_init(void) |
| { |
| return fdtdec_setup_mem_size_base(); |
| } |
| |
| void reset_cpu(void) |
| { |
| psci_system_reset(); |
| } |
| |
| __weak int board_init(void) |
| { |
| return 0; |
| } |
| |
| /* Check for vol- and power buttons */ |
| __weak int misc_init_r(void) |
| { |
| struct udevice *pon; |
| struct gpio_desc resin; |
| int node, ret; |
| |
| ret = uclass_get_device_by_name(UCLASS_GPIO, "pm8998_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("key_vol_down", "1"); |
| printf("Volume down button pressed\n"); |
| } else { |
| env_set("key_vol_down", "0"); |
| } |
| |
| node = fdt_subnode_offset(gd->fdt_blob, dev_of_offset(pon), |
| "key_power"); |
| if (node < 0) { |
| printf("Failed to find key_power 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_power button.\n"); |
| return 0; |
| } |
| if (dm_gpio_get_value(&resin)) { |
| env_set("key_power", "1"); |
| printf("Power button pressed\n"); |
| } else { |
| env_set("key_power", "0"); |
| } |
| |
| return 0; |
| } |