| /* |
| * (C) Copyright 2013 SAMSUNG Electronics |
| * Rajeshwari Shinde <rajeshwari.s@samsung.com> |
| * |
| * SPDX-License-Identifier: GPL-2.0+ |
| */ |
| |
| #include <common.h> |
| #include <cros_ec.h> |
| #include <errno.h> |
| #include <fdtdec.h> |
| #include <spi.h> |
| #include <tmu.h> |
| #include <netdev.h> |
| #include <asm/io.h> |
| #include <asm/arch/board.h> |
| #include <asm/arch/cpu.h> |
| #include <asm/arch/dwmmc.h> |
| #include <asm/arch/gpio.h> |
| #include <asm/arch/mmc.h> |
| #include <asm/arch/pinmux.h> |
| #include <asm/arch/power.h> |
| #include <power/pmic.h> |
| #include <asm/arch/sromc.h> |
| #include <power/max77686_pmic.h> |
| |
| DECLARE_GLOBAL_DATA_PTR; |
| |
| struct local_info { |
| struct cros_ec_dev *cros_ec_dev; /* Pointer to cros_ec device */ |
| int cros_ec_err; /* Error for cros_ec, 0 if ok */ |
| }; |
| |
| static struct local_info local; |
| |
| #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_EXYNOS_SPI |
| spi_init(); |
| #endif |
| return exynos_init(); |
| } |
| |
| int dram_init(void) |
| { |
| int i; |
| u32 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; |
| } |
| |
| void dram_init_banksize(void) |
| { |
| int i; |
| u32 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; |
| } |
| } |
| |
| static int board_uart_init(void) |
| { |
| 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; |
| } |
| |
| #ifdef CONFIG_BOARD_EARLY_INIT_F |
| int board_early_init_f(void) |
| { |
| int err; |
| |
| 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 err; |
| } |
| #endif |
| |
| struct cros_ec_dev *board_get_cros_ec_dev(void) |
| { |
| return local.cros_ec_dev; |
| } |
| |
| #ifdef CONFIG_CROS_EC |
| static int board_init_cros_ec_devices(const void *blob) |
| { |
| local.cros_ec_err = cros_ec_init(blob, &local.cros_ec_dev); |
| if (local.cros_ec_err) |
| return -1; /* Will report in board_late_init() */ |
| |
| return 0; |
| } |
| #endif |
| |
| #if defined(CONFIG_POWER) |
| #ifdef CONFIG_POWER_MAX77686 |
| static int pmic_reg_update(struct pmic *p, int reg, uint regval) |
| { |
| u32 val; |
| int ret = 0; |
| |
| ret = pmic_reg_read(p, reg, &val); |
| if (ret) { |
| debug("%s: PMIC %d register read failed\n", __func__, reg); |
| return -1; |
| } |
| val |= regval; |
| ret = pmic_reg_write(p, reg, val); |
| if (ret) { |
| debug("%s: PMIC %d register write failed\n", __func__, reg); |
| return -1; |
| } |
| return 0; |
| } |
| |
| static int max77686_init(void) |
| { |
| struct pmic *p; |
| |
| if (pmic_init(I2C_PMIC)) |
| return -1; |
| |
| p = pmic_get("MAX77686_PMIC"); |
| if (!p) |
| return -ENODEV; |
| |
| if (pmic_probe(p)) |
| return -1; |
| |
| if (pmic_reg_update(p, MAX77686_REG_PMIC_32KHZ, MAX77686_32KHCP_EN)) |
| return -1; |
| |
| if (pmic_reg_update(p, MAX77686_REG_PMIC_BBAT, |
| MAX77686_BBCHOSTEN | MAX77686_BBCVS_3_5V)) |
| return -1; |
| |
| /* VDD_MIF */ |
| if (pmic_reg_write(p, MAX77686_REG_PMIC_BUCK1OUT, |
| MAX77686_BUCK1OUT_1V)) { |
| debug("%s: PMIC %d register write failed\n", __func__, |
| MAX77686_REG_PMIC_BUCK1OUT); |
| return -1; |
| } |
| |
| if (pmic_reg_update(p, MAX77686_REG_PMIC_BUCK1CRTL, |
| MAX77686_BUCK1CTRL_EN)) |
| return -1; |
| |
| /* VDD_ARM */ |
| if (pmic_reg_write(p, MAX77686_REG_PMIC_BUCK2DVS1, |
| MAX77686_BUCK2DVS1_1_3V)) { |
| debug("%s: PMIC %d register write failed\n", __func__, |
| MAX77686_REG_PMIC_BUCK2DVS1); |
| return -1; |
| } |
| |
| if (pmic_reg_update(p, MAX77686_REG_PMIC_BUCK2CTRL1, |
| MAX77686_BUCK2CTRL_ON)) |
| return -1; |
| |
| /* VDD_INT */ |
| if (pmic_reg_write(p, MAX77686_REG_PMIC_BUCK3DVS1, |
| MAX77686_BUCK3DVS1_1_0125V)) { |
| debug("%s: PMIC %d register write failed\n", __func__, |
| MAX77686_REG_PMIC_BUCK3DVS1); |
| return -1; |
| } |
| |
| if (pmic_reg_update(p, MAX77686_REG_PMIC_BUCK3CTRL, |
| MAX77686_BUCK3CTRL_ON)) |
| return -1; |
| |
| /* VDD_G3D */ |
| if (pmic_reg_write(p, MAX77686_REG_PMIC_BUCK4DVS1, |
| MAX77686_BUCK4DVS1_1_2V)) { |
| debug("%s: PMIC %d register write failed\n", __func__, |
| MAX77686_REG_PMIC_BUCK4DVS1); |
| return -1; |
| } |
| |
| if (pmic_reg_update(p, MAX77686_REG_PMIC_BUCK4CTRL1, |
| MAX77686_BUCK3CTRL_ON)) |
| return -1; |
| |
| /* VDD_LDO2 */ |
| if (pmic_reg_update(p, MAX77686_REG_PMIC_LDO2CTRL1, |
| MAX77686_LD02CTRL1_1_5V | EN_LDO)) |
| return -1; |
| |
| /* VDD_LDO3 */ |
| if (pmic_reg_update(p, MAX77686_REG_PMIC_LDO3CTRL1, |
| MAX77686_LD03CTRL1_1_8V | EN_LDO)) |
| return -1; |
| |
| /* VDD_LDO5 */ |
| if (pmic_reg_update(p, MAX77686_REG_PMIC_LDO5CTRL1, |
| MAX77686_LD05CTRL1_1_8V | EN_LDO)) |
| return -1; |
| |
| /* VDD_LDO10 */ |
| if (pmic_reg_update(p, MAX77686_REG_PMIC_LDO10CTRL1, |
| MAX77686_LD10CTRL1_1_8V | EN_LDO)) |
| return -1; |
| |
| return 0; |
| } |
| #endif |
| |
| int power_init_board(void) |
| { |
| int ret = 0; |
| |
| set_ps_hold_ctrl(); |
| |
| #ifdef CONFIG_POWER_MAX77686 |
| ret = max77686_init(); |
| #endif |
| |
| return ret; |
| } |
| #endif |
| |
| #ifdef CONFIG_OF_CONTROL |
| static int decode_sromc(const void *blob, struct fdt_sromc *config) |
| { |
| int err; |
| int node; |
| |
| node = fdtdec_next_compatible(blob, 0, COMPAT_SAMSUNG_EXYNOS5_SROMC); |
| if (node < 0) { |
| debug("Could not find SROMC node\n"); |
| return node; |
| } |
| |
| config->bank = fdtdec_get_int(blob, node, "bank", 0); |
| config->width = fdtdec_get_int(blob, node, "width", 2); |
| |
| err = fdtdec_get_int_array(blob, node, "srom-timing", config->timing, |
| FDT_SROM_TIMING_COUNT); |
| if (err < 0) { |
| debug("Could not decode SROMC configuration Error: %s\n", |
| fdt_strerror(err)); |
| return -FDT_ERR_NOTFOUND; |
| } |
| return 0; |
| } |
| |
| int board_eth_init(bd_t *bis) |
| { |
| #ifdef CONFIG_SMC911X |
| u32 smc_bw_conf, smc_bc_conf; |
| struct fdt_sromc config; |
| fdt_addr_t base_addr; |
| int node; |
| |
| node = decode_sromc(gd->fdt_blob, &config); |
| if (node < 0) { |
| debug("%s: Could not find sromc configuration\n", __func__); |
| return 0; |
| } |
| node = fdtdec_next_compatible(gd->fdt_blob, node, COMPAT_SMSC_LAN9215); |
| if (node < 0) { |
| debug("%s: Could not find lan9215 configuration\n", __func__); |
| return 0; |
| } |
| |
| /* We now have a node, so any problems from now on are errors */ |
| base_addr = fdtdec_get_addr(gd->fdt_blob, node, "reg"); |
| if (base_addr == FDT_ADDR_T_NONE) { |
| debug("%s: Could not find lan9215 address\n", __func__); |
| return -1; |
| } |
| |
| /* Ethernet needs data bus width of 16 bits */ |
| if (config.width != 2) { |
| debug("%s: Unsupported bus width %d\n", __func__, |
| config.width); |
| return -1; |
| } |
| smc_bw_conf = SROMC_DATA16_WIDTH(config.bank) |
| | SROMC_BYTE_ENABLE(config.bank); |
| |
| smc_bc_conf = SROMC_BC_TACS(config.timing[FDT_SROM_TACS]) | |
| SROMC_BC_TCOS(config.timing[FDT_SROM_TCOS]) | |
| SROMC_BC_TACC(config.timing[FDT_SROM_TACC]) | |
| SROMC_BC_TCOH(config.timing[FDT_SROM_TCOH]) | |
| SROMC_BC_TAH(config.timing[FDT_SROM_TAH]) | |
| SROMC_BC_TACP(config.timing[FDT_SROM_TACP]) | |
| SROMC_BC_PMC(config.timing[FDT_SROM_PMC]); |
| |
| /* Select and configure the SROMC bank */ |
| exynos_pinmux_config(PERIPH_ID_SROMC, config.bank); |
| s5p_config_sromc(config.bank, smc_bw_conf, smc_bc_conf); |
| return smc911x_initialize(0, base_addr); |
| #endif |
| return 0; |
| } |
| |
| #ifdef CONFIG_GENERIC_MMC |
| int board_mmc_init(bd_t *bis) |
| { |
| int ret; |
| |
| /* dwmmc initializattion for available channels */ |
| ret = exynos_dwmmc_init(gd->fdt_blob); |
| if (ret) |
| debug("dwmmc init failed\n"); |
| |
| return ret; |
| } |
| #endif |
| #endif |
| |
| #ifdef CONFIG_BOARD_LATE_INIT |
| int board_late_init(void) |
| { |
| stdio_print_current_devices(); |
| |
| if (local.cros_ec_err) { |
| /* Force console on */ |
| gd->flags &= ~GD_FLG_SILENT; |
| |
| printf("cros-ec communications failure %d\n", |
| local.cros_ec_err); |
| puts("\nPlease reset with Power+Refresh\n\n"); |
| panic("Cannot init cros-ec device"); |
| return -1; |
| } |
| return 0; |
| } |
| #endif |
| |
| int arch_early_init_r(void) |
| { |
| #ifdef CONFIG_CROS_EC |
| if (board_init_cros_ec_devices(gd->fdt_blob)) { |
| printf("%s: Failed to init EC\n", __func__); |
| return 0; |
| } |
| #endif |
| |
| return 0; |
| } |