diff options
Diffstat (limited to 'board/freescale/imx93_evk/spl.c')
-rw-r--r-- | board/freescale/imx93_evk/spl.c | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/board/freescale/imx93_evk/spl.c b/board/freescale/imx93_evk/spl.c new file mode 100644 index 0000000000..9a041af30e --- /dev/null +++ b/board/freescale/imx93_evk/spl.c @@ -0,0 +1,142 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright 2022 NXP + */ + +#include <common.h> +#include <command.h> +#include <cpu_func.h> +#include <hang.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/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/mach-imx/syscounter.h> +#include <asm/mach-imx/s400_api.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> + +DECLARE_GLOBAL_DATA_PTR; + +int spl_board_boot_device(enum boot_device boot_dev_spl) +{ + return BOOT_DEVICE_BOOTROM; +} + +void spl_board_init(void) +{ + puts("Normal Boot\n"); +} + +void spl_dram_init(void) +{ + ddr_init(&dram_timing); +} + +#if CONFIG_IS_ENABLED(DM_PMIC_PCA9450) +int power_init_board(void) +{ + struct udevice *dev; + int ret; + + 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); + + if (IS_ENABLED(CONFIG_IMX9_LOW_DRIVE_MODE)){ + /* 0.75v for Low drive mode + */ + pmic_reg_write(dev, PCA9450_BUCK1OUT_DVS0, 0x0c); + pmic_reg_write(dev, PCA9450_BUCK3OUT_DVS0, 0x0c); + } else { + /* 0.9v for Over drive mode + */ + 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; +} +#endif + +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 = arch_cpu_init_dm(); + if (ret) { + printf("Fail to init Sentinel API\n"); + } else { + printf("SOC: 0x%x\n", gd->arch.soc_rev); + printf("LC: 0x%x\n", gd->arch.lifecycle); + } + + power_init_board(); + + if (!IS_ENABLED(CONFIG_IMX9_LOW_DRIVE_MODE)) + 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); +} |