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- // SPDX-License-Identifier: GPL-2.0+
- /*
- * (C) Copyright 2013 SAMSUNG Electronics
- * Rajeshwari Shinde <rajeshwari.s@samsung.com>
- */
- #include <common.h>
- #include <cros_ec.h>
- #include <env.h>
- #include <errno.h>
- #include <fdtdec.h>
- #include <hang.h>
- #include <init.h>
- #include <log.h>
- #include <net.h>
- #include <spi.h>
- #include <tmu.h>
- #include <netdev.h>
- #include <asm/global_data.h>
- #include <asm/io.h>
- #include <asm/gpio.h>
- #include <asm/arch/board.h>
- #include <asm/arch/cpu.h>
- #include <asm/arch/dwmmc.h>
- #include <asm/arch/mmc.h>
- #include <asm/arch/pinmux.h>
- #include <asm/arch/power.h>
- #include <asm/arch/system.h>
- #include <lcd.h>
- #include <i2c.h>
- #include <mmc.h>
- #include <stdio_dev.h>
- #include <usb.h>
- #include <dwc3-uboot.h>
- #include <linux/delay.h>
- #include <samsung/misc.h>
- #include <dm/pinctrl.h>
- #include <dm.h>
- DECLARE_GLOBAL_DATA_PTR;
- __weak int exynos_early_init_f(void)
- {
- return 0;
- }
- __weak int exynos_power_init(void)
- {
- return 0;
- }
- /**
- * get_boot_mmc_dev() - read boot MMC device id from XOM[7:5] pins.
- */
- static int get_boot_mmc_dev(void)
- {
- u32 mode = readl(EXYNOS4_OP_MODE) & 0x1C;
- if (mode == 0x04)
- return 2; /* MMC2: SD */
- /* MMC0: eMMC or unknown */
- return 0;
- }
- #if defined CONFIG_EXYNOS_TMU
- /* Boot Time Thermal Analysis for SoC temperature threshold breach */
- static void boot_temp_check(void)
- {
- int temp;
- switch (tmu_monitor(&temp)) {
- case TMU_STATUS_NORMAL:
- break;
- case TMU_STATUS_TRIPPED:
- /*
- * Status TRIPPED ans WARNING means corresponding threshold
- * breach
- */
- puts("EXYNOS_TMU: TRIPPING! Device power going down ...\n");
- set_ps_hold_ctrl();
- hang();
- break;
- case TMU_STATUS_WARNING:
- puts("EXYNOS_TMU: WARNING! Temperature very high\n");
- break;
- case TMU_STATUS_INIT:
- /*
- * TMU_STATUS_INIT means something is wrong with temperature
- * sensing and TMU status was changed back from NORMAL to INIT.
- */
- puts("EXYNOS_TMU: WARNING! Temperature sensing not done\n");
- break;
- default:
- debug("EXYNOS_TMU: Unknown TMU state\n");
- }
- }
- #endif
- int board_init(void)
- {
- gd->bd->bi_boot_params = (PHYS_SDRAM_1 + 0x100UL);
- #if defined CONFIG_EXYNOS_TMU
- if (tmu_init(gd->fdt_blob) != TMU_STATUS_NORMAL) {
- debug("%s: Failed to init TMU\n", __func__);
- return -1;
- }
- boot_temp_check();
- #endif
- #ifdef CONFIG_TZSW_RESERVED_DRAM_SIZE
- /* The last few MB of memory can be reserved for secure firmware */
- ulong size = CONFIG_TZSW_RESERVED_DRAM_SIZE;
- gd->ram_size -= size;
- gd->bd->bi_dram[CONFIG_NR_DRAM_BANKS - 1].size -= size;
- #endif
- return exynos_init();
- }
- int dram_init(void)
- {
- unsigned int i;
- unsigned long addr;
- for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
- addr = CONFIG_SYS_SDRAM_BASE + (i * SDRAM_BANK_SIZE);
- gd->ram_size += get_ram_size((long *)addr, SDRAM_BANK_SIZE);
- }
- return 0;
- }
- int dram_init_banksize(void)
- {
- unsigned int i;
- unsigned long addr, size;
- for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
- addr = CONFIG_SYS_SDRAM_BASE + (i * SDRAM_BANK_SIZE);
- size = get_ram_size((long *)addr, SDRAM_BANK_SIZE);
- gd->bd->bi_dram[i].start = addr;
- gd->bd->bi_dram[i].size = size;
- }
- return 0;
- }
- static int board_uart_init(void)
- {
- #ifndef CONFIG_PINCTRL_EXYNOS
- int err, uart_id, ret = 0;
- for (uart_id = PERIPH_ID_UART0; uart_id <= PERIPH_ID_UART3; uart_id++) {
- err = exynos_pinmux_config(uart_id, PINMUX_FLAG_NONE);
- if (err) {
- debug("UART%d not configured\n",
- (uart_id - PERIPH_ID_UART0));
- ret |= err;
- }
- }
- return ret;
- #else
- return 0;
- #endif
- }
- #ifdef CONFIG_BOARD_EARLY_INIT_F
- int board_early_init_f(void)
- {
- int err;
- #ifdef CONFIG_BOARD_TYPES
- set_board_type();
- #endif
- err = board_uart_init();
- if (err) {
- debug("UART init failed\n");
- return err;
- }
- #ifdef CONFIG_SYS_I2C_INIT_BOARD
- board_i2c_init(gd->fdt_blob);
- #endif
- return exynos_early_init_f();
- }
- #endif
- #if defined(CONFIG_POWER) || defined(CONFIG_DM_PMIC)
- int power_init_board(void)
- {
- set_ps_hold_ctrl();
- return exynos_power_init();
- }
- #endif
- #if defined(CONFIG_DISPLAY_BOARDINFO) || defined(CONFIG_DISPLAY_BOARDINFO_LATE)
- int checkboard(void)
- {
- if (IS_ENABLED(CONFIG_BOARD_TYPES)) {
- const char *board_info;
- if (IS_ENABLED(CONFIG_DISPLAY_BOARDINFO_LATE)) {
- /*
- * Printing type requires having revision, although
- * this will succeed only if done late.
- * Otherwise revision will be set in misc_init_r().
- */
- set_board_revision();
- }
- board_info = get_board_type();
- if (board_info)
- printf("Type: %s\n", board_info);
- }
- return 0;
- }
- #endif
- #ifdef CONFIG_BOARD_LATE_INIT
- int board_late_init(void)
- {
- struct udevice *dev;
- int ret;
- int mmcbootdev = get_boot_mmc_dev();
- char mmcbootdev_str[16];
- ret = uclass_first_device_err(UCLASS_CROS_EC, &dev);
- if (ret && ret != -ENODEV) {
- /* Force console on */
- gd->flags &= ~GD_FLG_SILENT;
- printf("cros-ec communications failure %d\n", ret);
- puts("\nPlease reset with Power+Refresh\n\n");
- panic("Cannot init cros-ec device");
- return -1;
- }
- printf("Boot device: MMC(%u)\n", mmcbootdev);
- sprintf(mmcbootdev_str, "%u", mmcbootdev);
- env_set("mmcbootdev", mmcbootdev_str);
- return 0;
- }
- #endif
- #ifdef CONFIG_MISC_INIT_R
- int misc_init_r(void)
- {
- if (IS_ENABLED(CONFIG_BOARD_TYPES) &&
- !IS_ENABLED(CONFIG_DISPLAY_BOARDINFO_LATE)) {
- /*
- * If revision was not set by late display boardinfo,
- * set it here. At this point regulators should be already
- * available.
- */
- set_board_revision();
- }
- #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
- set_board_info();
- #endif
- #ifdef CONFIG_LCD_MENU
- keys_init();
- check_boot_mode();
- #endif
- #ifdef CONFIG_CMD_BMP
- if (panel_info.logo_on)
- draw_logo();
- #endif
- return 0;
- }
- #endif
- void reset_misc(void)
- {
- struct gpio_desc gpio = {};
- int node;
- node = fdt_node_offset_by_compatible(gd->fdt_blob, 0,
- "samsung,emmc-reset");
- if (node < 0)
- return;
- gpio_request_by_name_nodev(offset_to_ofnode(node), "reset-gpio", 0,
- &gpio, GPIOD_IS_OUT);
- if (dm_gpio_is_valid(&gpio)) {
- /*
- * Reset eMMC
- *
- * FIXME: Need to optimize delay time. Minimum 1usec pulse is
- * required by 'JEDEC Standard No.84-A441' (eMMC)
- * document but real delay time is expected to greater
- * than 1usec.
- */
- dm_gpio_set_value(&gpio, 0);
- mdelay(10);
- dm_gpio_set_value(&gpio, 1);
- }
- }
- int board_usb_cleanup(int index, enum usb_init_type init)
- {
- #ifdef CONFIG_USB_DWC3
- dwc3_uboot_exit(index);
- #endif
- return 0;
- }
- int mmc_get_env_dev(void)
- {
- return get_boot_mmc_dev();
- }
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