| Fabio Estevam | 2ef69ef | 2023-01-10 17:18:08 -0300 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0+ |
| 2 | /* |
| 3 | * Copyright 2019 NXP |
| 4 | */ |
| 5 | |
| 6 | #include <common.h> |
| 7 | #include <command.h> |
| 8 | #include <cpu_func.h> |
| 9 | #include <hang.h> |
| 10 | #include <image.h> |
| 11 | #include <init.h> |
| 12 | #include <log.h> |
| 13 | #include <spl.h> |
| 14 | #include <asm/global_data.h> |
| 15 | #include <asm/io.h> |
| 16 | #include <asm/mach-imx/iomux-v3.h> |
| 17 | #include <asm/arch/clock.h> |
| 18 | #include <asm/arch/imx8mm_pins.h> |
| 19 | #include <asm/arch/sys_proto.h> |
| 20 | #include <asm/mach-imx/boot_mode.h> |
| 21 | #include <asm/arch/ddr.h> |
| 22 | |
| 23 | #include <dm/uclass.h> |
| 24 | #include <dm/device.h> |
| 25 | #include <dm/uclass-internal.h> |
| 26 | #include <dm/device-internal.h> |
| 27 | |
| 28 | #include <power/pmic.h> |
| 29 | #include <power/pca9450.h> |
| 30 | |
| 31 | DECLARE_GLOBAL_DATA_PTR; |
| 32 | |
| 33 | int spl_board_boot_device(enum boot_device boot_dev_spl) |
| 34 | { |
| 35 | switch (boot_dev_spl) { |
| 36 | case USB_BOOT: |
| 37 | return BOOT_DEVICE_BOARD; |
| 38 | case SD2_BOOT: |
| 39 | case MMC2_BOOT: |
| 40 | return BOOT_DEVICE_MMC1; |
| 41 | case SD3_BOOT: |
| 42 | case MMC3_BOOT: |
| 43 | return BOOT_DEVICE_MMC2; |
| 44 | default: |
| 45 | return BOOT_DEVICE_NONE; |
| 46 | } |
| 47 | } |
| 48 | |
| 49 | static void spl_dram_init(void) |
| 50 | { |
| 51 | ddr_init(&dram_timing); |
| 52 | } |
| 53 | |
| 54 | void spl_board_init(void) |
| 55 | { |
| 56 | if (is_usb_boot()) |
| 57 | puts("USB Boot\n"); |
| 58 | else |
| 59 | puts("Normal Boot\n"); |
| 60 | } |
| 61 | |
| 62 | #ifdef CONFIG_SPL_LOAD_FIT |
| 63 | int board_fit_config_name_match(const char *name) |
| 64 | { |
| 65 | /* Just empty function now - can't decide what to choose */ |
| 66 | debug("%s: %s\n", __func__, name); |
| 67 | |
| 68 | return 0; |
| 69 | } |
| 70 | #endif |
| 71 | |
| 72 | static int power_init_board(void) |
| 73 | { |
| 74 | struct udevice *dev; |
| 75 | int ret; |
| 76 | |
| 77 | ret = pmic_get("pmic@25", &dev); |
| 78 | if (ret == -ENODEV) { |
| 79 | puts("No pmic\n"); |
| 80 | return 0; |
| 81 | } |
| 82 | if (ret != 0) |
| 83 | return ret; |
| 84 | |
| 85 | /* BUCKxOUT_DVS0/1 control BUCK123 output */ |
| 86 | pmic_reg_write(dev, PCA9450_BUCK123_DVS, 0x29); |
| 87 | |
| 88 | /* Buck 1 DVS control through PMIC_STBY_REQ */ |
| 89 | pmic_reg_write(dev, PCA9450_BUCK1CTRL, 0x59); |
| 90 | |
| 91 | /* Set DVS1 to 0.8V for suspend */ |
| 92 | pmic_reg_write(dev, PCA9450_BUCK1OUT_DVS1, 0x10); |
| 93 | |
| 94 | /* increase VDD_DRAM to 0.95V for 3GHz DDR */ |
| 95 | pmic_reg_write(dev, PCA9450_BUCK3OUT_DVS0, 0x1C); |
| 96 | |
| 97 | /* VDD_DRAM needs off in suspend, set B1_ENMODE=10 (ON by PMIC_ON_REQ = H && PMIC_STBY_REQ = L) */ |
| 98 | pmic_reg_write(dev, PCA9450_BUCK3CTRL, 0x4a); |
| 99 | |
| 100 | /* set VDD_SNVS_0V8 from default 0.85V */ |
| 101 | pmic_reg_write(dev, PCA9450_LDO2CTRL, 0xC0); |
| 102 | |
| 103 | /* set WDOG_B_CFG to cold reset */ |
| 104 | pmic_reg_write(dev, PCA9450_RESET_CTRL, 0xA1); |
| 105 | |
| 106 | return 0; |
| 107 | } |
| 108 | |
| 109 | void board_init_f(ulong dummy) |
| 110 | { |
| 111 | struct udevice *dev; |
| 112 | int ret; |
| 113 | |
| 114 | arch_cpu_init(); |
| 115 | |
| 116 | init_uart_clk(1); |
| 117 | |
| 118 | timer_init(); |
| 119 | |
| 120 | /* Clear the BSS. */ |
| 121 | memset(__bss_start, 0, __bss_end - __bss_start); |
| 122 | |
| 123 | ret = spl_early_init(); |
| 124 | if (ret) { |
| 125 | debug("spl_early_init() failed: %d\n", ret); |
| 126 | hang(); |
| 127 | } |
| 128 | |
| 129 | ret = uclass_get_device_by_name(UCLASS_CLK, |
| 130 | "clock-controller@30380000", |
| 131 | &dev); |
| 132 | if (ret < 0) { |
| 133 | printf("Failed to find clock node. Check device tree\n"); |
| 134 | hang(); |
| 135 | } |
| 136 | |
| 137 | preloader_console_init(); |
| 138 | |
| 139 | enable_tzc380(); |
| 140 | |
| 141 | power_init_board(); |
| 142 | |
| 143 | /* DDR initialization */ |
| 144 | spl_dram_init(); |
| 145 | |
| 146 | board_init_r(NULL, 0); |
| 147 | } |