mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-20 17:08:52 +09:00
![Fabio Estevam](/assets/img/avatar_default.png)
After triggering a "reboot" command in Linux the following hang in SPL is observed: U-Boot SPL 2020.04 (Apr 15 2020 - 10:49:29 -0300) Normal Boot WDT: Not found! Trying to boot from MMC2_2 spl: mmc init failed with error: -70 SPL: failed to boot from all boot devices ### ERROR ### Please RESET the board ### This error happens because the CMD_ERR bit is set in the IRQ status register after booting from Linux. To ensure a fresh start, force the VMMC supply to get unpowered first. Signed-off-by: Fabio Estevam <festevam@gmail.com> Reviewed-by: Peng Fan <peng.fan@nxp.com>
78 lines
1.6 KiB
C
78 lines
1.6 KiB
C
/*
|
|
* Copyright 2018 NXP
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <dm.h>
|
|
#include <spl.h>
|
|
#include <dm/uclass.h>
|
|
#include <dm/device.h>
|
|
#include <dm/uclass-internal.h>
|
|
#include <dm/device-internal.h>
|
|
#include <dm/lists.h>
|
|
#include <asm/io.h>
|
|
#include <asm/gpio.h>
|
|
#include <asm/arch/sci/sci.h>
|
|
#include <asm/arch/imx8-pins.h>
|
|
#include <asm/arch/iomux.h>
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
#define GPIO_PAD_CTRL ((SC_PAD_CONFIG_NORMAL << PADRING_CONFIG_SHIFT) | \
|
|
(SC_PAD_ISO_OFF << PADRING_LPCONFIG_SHIFT) | \
|
|
(SC_PAD_28FDSOI_DSE_DV_HIGH << PADRING_DSE_SHIFT) | \
|
|
(SC_PAD_28FDSOI_PS_PU << PADRING_PULL_SHIFT))
|
|
|
|
#define USDHC2_SD_PWR IMX_GPIO_NR(4, 19)
|
|
static iomux_cfg_t usdhc2_sd_pwr[] = {
|
|
SC_P_USDHC1_RESET_B | MUX_PAD_CTRL(GPIO_PAD_CTRL),
|
|
};
|
|
|
|
void spl_board_init(void)
|
|
{
|
|
struct udevice *dev;
|
|
|
|
uclass_find_first_device(UCLASS_MISC, &dev);
|
|
|
|
for (; dev; uclass_find_next_device(&dev)) {
|
|
if (device_probe(dev))
|
|
continue;
|
|
}
|
|
|
|
arch_cpu_init();
|
|
|
|
board_early_init_f();
|
|
|
|
timer_init();
|
|
|
|
imx8_iomux_setup_multiple_pads(usdhc2_sd_pwr, ARRAY_SIZE(usdhc2_sd_pwr));
|
|
gpio_direction_output(USDHC2_SD_PWR, 0);
|
|
|
|
preloader_console_init();
|
|
|
|
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
|
|
|
|
void board_init_f(ulong dummy)
|
|
{
|
|
/* Clear global data */
|
|
memset((void *)gd, 0, sizeof(gd_t));
|
|
|
|
/* Clear the BSS. */
|
|
memset(__bss_start, 0, __bss_end - __bss_start);
|
|
|
|
board_init_r(NULL, 0);
|
|
}
|