mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-05 19:10:13 +00:00
efc3f9526f
In a lot of cases kernel resets UART HW. To ensure that U-Boot messages printed before booting the kernel are not lost, call new U-Boot console flush() function. Signed-off-by: Pali Rohár <pali@kernel.org> Reviewed-by: Simon Glass <sjg@chromium.org>
72 lines
1.5 KiB
C
72 lines
1.5 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* (C) Copyright 2000-2003
|
|
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
|
|
*/
|
|
|
|
/*
|
|
* Misc boot support
|
|
*/
|
|
#include <common.h>
|
|
#include <command.h>
|
|
#include <net.h>
|
|
|
|
#ifdef CONFIG_CMD_GO
|
|
|
|
/* Allow ports to override the default behavior */
|
|
__attribute__((weak))
|
|
unsigned long do_go_exec(ulong (*entry)(int, char * const []), int argc,
|
|
char *const argv[])
|
|
{
|
|
return entry (argc, argv);
|
|
}
|
|
|
|
static int do_go(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
|
|
{
|
|
ulong addr, rc;
|
|
int rcode = 0;
|
|
|
|
if (argc < 2)
|
|
return CMD_RET_USAGE;
|
|
|
|
addr = hextoul(argv[1], NULL);
|
|
|
|
printf ("## Starting application at 0x%08lX ...\n", addr);
|
|
flush();
|
|
|
|
/*
|
|
* pass address parameter as argv[0] (aka command name),
|
|
* and all remaining args
|
|
*/
|
|
rc = do_go_exec ((void *)addr, argc - 1, argv + 1);
|
|
if (rc != 0) rcode = 1;
|
|
|
|
printf ("## Application terminated, rc = 0x%lX\n", rc);
|
|
return rcode;
|
|
}
|
|
|
|
/* -------------------------------------------------------------------- */
|
|
|
|
U_BOOT_CMD(
|
|
go, CONFIG_SYS_MAXARGS, 1, do_go,
|
|
"start application at address 'addr'",
|
|
"addr [arg ...]\n - start application at address 'addr'\n"
|
|
" passing 'arg' as arguments"
|
|
);
|
|
|
|
#endif
|
|
|
|
U_BOOT_CMD(
|
|
reset, 2, 0, do_reset,
|
|
"Perform RESET of the CPU",
|
|
"- cold boot without level specifier\n"
|
|
"reset -w - warm reset if implemented"
|
|
);
|
|
|
|
#ifdef CONFIG_CMD_POWEROFF
|
|
U_BOOT_CMD(
|
|
poweroff, 1, 0, do_poweroff,
|
|
"Perform POWEROFF of the device",
|
|
""
|
|
);
|
|
#endif
|