2 * Copyright 2018-2019 NXP
4 * SPDX-License-Identifier: GPL-2.0+
14 #include <asm/mach-imx/iomux-v3.h>
15 #include <asm/arch/imx8mp_pins.h>
16 #include <asm/arch/sys_proto.h>
17 #include <asm/mach-imx/boot_mode.h>
18 #include <power/pmic.h>
20 #include <power/pca9450.h>
21 #include <asm/arch/clock.h>
22 #include <asm/mach-imx/gpio.h>
23 #include <asm/mach-imx/mxc_i2c.h>
24 #include <fsl_esdhc.h>
26 #include <asm/arch/ddr.h>
28 #include <dm/uclass.h>
29 #include <dm/device.h>
30 #include <dm/uclass-internal.h>
31 #include <dm/device-internal.h>
33 DECLARE_GLOBAL_DATA_PTR;
35 int spl_board_boot_device(enum boot_device boot_dev_spl)
37 return BOOT_DEVICE_BOOTROM;
40 void spl_dram_init(void)
42 ddr_init(&dram_timing);
45 void spl_board_init(void)
50 puts("Normal Boot\n");
52 ret = uclass_get_device_by_name(UCLASS_CLK,
53 "clock-controller@30380000",
56 printf("Failed to find clock node. Check device tree\n");
59 #define I2C_PAD_CTRL (PAD_CTL_DSE6 | PAD_CTL_HYS | PAD_CTL_PUE | PAD_CTL_PE)
60 #define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
61 struct i2c_pads_info i2c_pad_info1 = {
63 .i2c_mode = MX8MP_PAD_I2C1_SCL__I2C1_SCL | PC,
64 .gpio_mode = MX8MP_PAD_I2C1_SCL__GPIO5_IO14 | PC,
65 .gp = IMX_GPIO_NR(5, 14),
68 .i2c_mode = MX8MP_PAD_I2C1_SDA__I2C1_SDA | PC,
69 .gpio_mode = MX8MP_PAD_I2C1_SDA__GPIO5_IO15 | PC,
70 .gp = IMX_GPIO_NR(5, 15),
76 int power_init_board(void)
81 ret = power_pca9450b_init(I2C_PMIC);
83 printf("power init failed");
84 p = pmic_get("PCA9450");
87 /* BUCKxOUT_DVS0/1 control BUCK123 output */
88 pmic_reg_write(p, PCA9450_BUCK123_DVS, 0x29);
91 * increase VDD_SOC to typical value 0.95V before first
92 * DRAM access, set DVS1 to 0.85v for suspend.
93 * Enable DVS control through PMIC_STBY_REQ and
94 * set B1_ENMODE=1 (ON by PMIC_ON_REQ=H)
96 pmic_reg_write(p, PCA9450_BUCK1OUT_DVS0, 0x1C);
97 pmic_reg_write(p, PCA9450_BUCK1OUT_DVS1, 0x14);
98 pmic_reg_write(p, PCA9450_BUCK1CTRL, 0x59);
100 /* set WDOG_B_CFG to cold reset */
101 pmic_reg_write(p, PCA9450_RESET_CTRL, 0xA1);
107 #ifdef CONFIG_SPL_LOAD_FIT
108 int board_fit_config_name_match(const char *name)
110 /* Just empty function now - can't decide what to choose */
111 debug("%s: %s\n", __func__, name);
117 void board_init_f(ulong dummy)
125 board_early_init_f();
129 preloader_console_init();
132 memset(__bss_start, 0, __bss_end - __bss_start);
136 debug("spl_init() failed: %d\n", ret);
142 /* Adjust pmic voltage to 1.0V for 800M */
143 setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
147 /* DDR initialization */
150 board_init_r(NULL, 0);