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/*
* Copyright 2018-2019 NXP
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <cpu_func.h>
#include <hang.h>
#include <spl.h>
#include <asm/io.h>
#include <errno.h>
#include <asm/io.h>
#include <asm/mach-imx/iomux-v3.h>
#include <asm/arch/imx8mp_pins.h>
#include <asm/arch/sys_proto.h>
#include <asm/mach-imx/boot_mode.h>
#include <power/pmic.h>
#include <power/pca9450.h>
#include <asm/arch/clock.h>
#include <asm/mach-imx/gpio.h>
#include <asm/mach-imx/mxc_i2c.h>
#include <fsl_esdhc.h>
#include <mmc.h>
#include <asm/arch/ddr.h>
#include <dm/uclass.h>
#include <dm/device.h>
#include <dm/uclass-internal.h>
#include <dm/device-internal.h>
DECLARE_GLOBAL_DATA_PTR;
int spl_board_boot_device(enum boot_device boot_dev_spl)
{
return BOOT_DEVICE_BOOTROM;
}
void spl_dram_init(void)
{
ddr_init(&dram_timing);
}
void spl_board_init(void)
{
struct udevice *dev;
int ret;
puts("Normal Boot\n");
ret = uclass_get_device_by_name(UCLASS_CLK,
"clock-controller@30380000",
&dev);
if (ret < 0)
printf("Failed to find clock node. Check device tree\n");
}
#define I2C_PAD_CTRL (PAD_CTL_DSE6 | PAD_CTL_HYS | PAD_CTL_PUE | PAD_CTL_PE)
#define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
struct i2c_pads_info i2c_pad_info1 = {
.scl = {
.i2c_mode = MX8MP_PAD_I2C1_SCL__I2C1_SCL | PC,
.gpio_mode = MX8MP_PAD_I2C1_SCL__GPIO5_IO14 | PC,
.gp = IMX_GPIO_NR(5, 14),
},
.sda = {
.i2c_mode = MX8MP_PAD_I2C1_SDA__I2C1_SDA | PC,
.gpio_mode = MX8MP_PAD_I2C1_SDA__GPIO5_IO15 | PC,
.gp = IMX_GPIO_NR(5, 15),
},
};
#ifdef CONFIG_POWER
#define I2C_PMIC 0
int power_init_board(void)
{
struct pmic *p;
int ret;
ret = power_pca9450b_init(I2C_PMIC);
if (ret)
printf("power init failed");
p = pmic_get("PCA9450");
pmic_probe(p);
/* BUCKxOUT_DVS0/1 control BUCK123 output */
pmic_reg_write(p, PCA9450_BUCK123_DVS, 0x29);
/*
* increase VDD_SOC to typical value 0.95V before first
* DRAM access, set DVS1 to 0.85v for suspend.
* Enable DVS control through PMIC_STBY_REQ and
* set B1_ENMODE=1 (ON by PMIC_ON_REQ=H)
*/
pmic_reg_write(p, PCA9450_BUCK1OUT_DVS0, 0x1C);
pmic_reg_write(p, PCA9450_BUCK1OUT_DVS1, 0x14);
pmic_reg_write(p, PCA9450_BUCK1CTRL, 0x59);
/* set WDOG_B_CFG to cold reset */
pmic_reg_write(p, PCA9450_RESET_CTRL, 0xA1);
return 0;
}
#endif
#ifdef CONFIG_SPL_LOAD_FIT
int board_fit_config_name_match(const char *name)
{
/* Just empty function now - can't decide what to choose */
debug("%s: %s\n", __func__, name);
return 0;
}
#endif
void board_init_f(ulong dummy)
{
int ret;
arch_cpu_init();
init_uart_clk(1);
board_early_init_f();
timer_init();
preloader_console_init();
/* Clear the BSS. */
memset(__bss_start, 0, __bss_end - __bss_start);
ret = spl_init();
if (ret) {
debug("spl_init() failed: %d\n", ret);
hang();
}
enable_tzc380();
/* Adjust pmic voltage to 1.0V for 800M */
setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
power_init_board();
/* DDR initialization */
spl_dram_init();
board_init_r(NULL, 0);
}
int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
puts("resetting ...\n");
reset_cpu(WDOG1_BASE_ADDR);
return 0;
}
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