u-boot/board/freescale/imx8mm_evk/spl.c
Peng Fan bf6e0b9fd2 imx: imx8mm_evk: enable CONFIG_DM_SERIAL
Enable CONFIG_DM_SERIAL. uart2 and its pinmux was already
marked with u-boot,dm-spl.

move the preloader_console_init() call after spl_early_init() to
avoid board hang

Signed-off-by: Peng Fan <peng.fan@nxp.com>
2022-04-21 15:18:25 +02:00

169 lines
3.3 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2019, 2021 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/mach-imx/iomux-v3.h>
#include <asm/arch/clock.h>
#include <asm/arch/imx8mm_pins.h>
#include <asm/arch/sys_proto.h>
#include <asm/mach-imx/boot_mode.h>
#include <asm/arch/ddr.h>
#include <dm/uclass.h>
#include <dm/device.h>
#include <dm/uclass-internal.h>
#include <dm/device-internal.h>
#include <power/pmic.h>
#include <power/pca9450.h>
DECLARE_GLOBAL_DATA_PTR;
int spl_board_boot_device(enum boot_device boot_dev_spl)
{
switch (boot_dev_spl) {
case SD2_BOOT:
case MMC2_BOOT:
return BOOT_DEVICE_MMC1;
case SD3_BOOT:
case MMC3_BOOT:
return BOOT_DEVICE_MMC2;
default:
return BOOT_DEVICE_NONE;
}
}
static void spl_dram_init(void)
{
ddr_init(&dram_timing);
}
void spl_board_init(void)
{
if (IS_ENABLED(CONFIG_FSL_CAAM)) {
struct udevice *dev;
int ret;
ret = uclass_get_device_by_driver(UCLASS_MISC, DM_DRIVER_GET(caam_jr), &dev);
if (ret)
printf("Failed to initialize %s: %d\n", dev->name, ret);
}
puts("Normal Boot\n");
}
#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
#define WDOG_PAD_CTRL (PAD_CTL_DSE6 | PAD_CTL_ODE | PAD_CTL_PUE | PAD_CTL_PE)
static iomux_v3_cfg_t const wdog_pads[] = {
IMX8MM_PAD_GPIO1_IO02_WDOG1_WDOG_B | MUX_PAD_CTRL(WDOG_PAD_CTRL),
};
int board_early_init_f(void)
{
struct wdog_regs *wdog = (struct wdog_regs *)WDOG1_BASE_ADDR;
imx_iomux_v3_setup_multiple_pads(wdog_pads, ARRAY_SIZE(wdog_pads));
set_wdog_reset(wdog);
return 0;
}
static int power_init_board(void)
{
struct udevice *dev;
int ret;
ret = pmic_get("pca9450@25", &dev);
if (ret == -ENODEV) {
puts("No pmic\n");
return 0;
}
if (ret != 0)
return ret;
/* BUCKxOUT_DVS0/1 control BUCK123 output */
pmic_reg_write(dev, PCA9450_BUCK123_DVS, 0x29);
/* Buck 1 DVS control through PMIC_STBY_REQ */
pmic_reg_write(dev, PCA9450_BUCK1CTRL, 0x59);
/* Set DVS1 to 0.8v for suspend */
pmic_reg_write(dev, PCA9450_BUCK1OUT_DVS1, 0x10);
/* increase VDD_DRAM to 0.95v for 3Ghz DDR */
pmic_reg_write(dev, PCA9450_BUCK3OUT_DVS0, 0x1C);
/* VDD_DRAM needs off in suspend, set B1_ENMODE=10 (ON by PMIC_ON_REQ = H && PMIC_STBY_REQ = L) */
pmic_reg_write(dev, PCA9450_BUCK3CTRL, 0x4a);
/* set VDD_SNVS_0V8 from default 0.85V */
pmic_reg_write(dev, PCA9450_LDO2CTRL, 0xC0);
/* set WDOG_B_CFG to cold reset */
pmic_reg_write(dev, PCA9450_RESET_CTRL, 0xA1);
return 0;
}
void board_init_f(ulong dummy)
{
struct udevice *dev;
int ret;
arch_cpu_init();
init_uart_clk(1);
board_early_init_f();
timer_init();
/* Clear the BSS. */
memset(__bss_start, 0, __bss_end - __bss_start);
ret = spl_early_init();
if (ret) {
debug("spl_early_init() failed: %d\n", ret);
hang();
}
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");
hang();
}
preloader_console_init();
enable_tzc380();
power_init_board();
/* DDR initialization */
spl_dram_init();
board_init_r(NULL, 0);
}