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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2019 NXP
*/
#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 <asm/sections.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 USB_BOOT:
return BOOT_DEVICE_BOARD;
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_usb_boot())
puts("USB Boot\n");
else
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
static int power_init_board(void)
{
struct udevice *dev;
int ret;
ret = pmic_get("pmic@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);
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);
}
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