blob: 8852aea156b70edeaf90d326ca96a25852b639d4 [file] [log] [blame]
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2022 NXP
* Copyright 2023 Variscite Ltd.
*/
#include <command.h>
#include <cpu_func.h>
#include <image.h>
#include <init.h>
#include <log.h>
#include <spl.h>
#include <asm/global_data.h>
#include <asm/io.h>
#include <asm/arch/imx93_pins.h>
#include <asm/arch/mu.h>
#include <asm/arch/clock.h>
#include <asm/arch/sys_proto.h>
#include <asm/mach-imx/boot_mode.h>
#include <asm/mach-imx/mxc_i2c.h>
#include <asm/arch-mx7ulp/gpio.h>
#include <asm/sections.h>
#include <asm/mach-imx/ele_api.h>
#include <asm/mach-imx/syscounter.h>
#include <dm/uclass.h>
#include <dm/device.h>
#include <dm/uclass-internal.h>
#include <dm/device-internal.h>
#include <linux/delay.h>
#include <asm/arch/clock.h>
#include <asm/arch/ccm_regs.h>
#include <asm/arch/ddr.h>
#include <power/pmic.h>
#include <power/pca9450.h>
#include <asm/arch/trdc.h>
#include "../common/imx9_eeprom.h"
DECLARE_GLOBAL_DATA_PTR;
static struct var_eeprom eeprom = {0};
int spl_board_boot_device(enum boot_device boot_dev_spl)
{
return BOOT_DEVICE_BOOTROM;
}
void spl_board_init(void)
{
struct var_eeprom *ep = VAR_EEPROM_DATA;
int ret;
puts("Normal Boot\n");
ret = ele_start_rng();
if (ret)
printf("Fail to start RNG: %d\n", ret);
/* Copy EEPROM contents to DRAM */
memcpy(ep, &eeprom, sizeof(*ep));
}
void spl_dram_init(void)
{
/* EEPROM initialization */
var_eeprom_read_header(&eeprom);
ddr_init(&dram_timing);
}
int power_init_board(void)
{
struct udevice *dev;
int ret;
if (IS_ENABLED(CONFIG_SPL_DM_PMIC_PCA9450)) {
ret = pmic_get("pmic@25", &dev);
if (ret == -ENODEV) {
puts("No pca9450@25\n");
return 0;
}
if (ret != 0)
return ret;
/* BUCKxOUT_DVS0/1 control BUCK123 output */
pmic_reg_write(dev, PCA9450_BUCK123_DVS, 0x29);
/* enable DVS control through PMIC_STBY_REQ */
pmic_reg_write(dev, PCA9450_BUCK1CTRL, 0x59);
pmic_reg_write(dev, PCA9450_BUCK1OUT_DVS0, 0x18);
pmic_reg_write(dev, PCA9450_BUCK3OUT_DVS0, 0x18);
/* set standby voltage to 0.65V */
pmic_reg_write(dev, PCA9450_BUCK1OUT_DVS1, 0x4);
/* I2C_LT_EN*/
pmic_reg_write(dev, 0xa, 0x3);
/* set WDOG_B_CFG to cold reset */
pmic_reg_write(dev, PCA9450_RESET_CTRL, 0xA1);
}
return 0;
}
void board_init_f(ulong dummy)
{
int ret;
/* Clear the BSS. */
memset(__bss_start, 0, __bss_end - __bss_start);
timer_init();
arch_cpu_init();
board_early_init_f();
spl_early_init();
preloader_console_init();
ret = imx9_probe_mu();
if (ret) {
printf("Fail to init ELE API\n");
} else {
debug("SOC: 0x%x\n", gd->arch.soc_rev);
debug("LC: 0x%x\n", gd->arch.lifecycle);
}
power_init_board();
set_arm_core_max_clk();
/* Init power of mix */
soc_power_init();
/* Setup TRDC for DDR access */
trdc_init();
/* DDR initialization */
spl_dram_init();
/* Put M33 into CPUWAIT for following kick */
ret = m33_prepare();
if (!ret)
printf("M33 prepare ok\n");
board_init_r(NULL, 0);
}