cmd: add a panic command

Even in boot scripts it may be needed to "panic" when all options
are exhausted and the device specification specifies hanging
instead of resetting the board.

So add a new panic command that just wraps around the core panic
call in U-Boot and can take an optional message.

Signed-off-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
This commit is contained in:
Heiko Stuebner 2020-06-30 01:05:45 +02:00 committed by Tom Rini
parent ce6515ecee
commit 85ecfd1a12
2 changed files with 24 additions and 0 deletions

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@ -8,6 +8,7 @@ ifndef CONFIG_SPL_BUILD
obj-y += boot.o
obj-$(CONFIG_CMD_BOOTM) += bootm.o
obj-y += help.o
obj-y += panic.o
obj-y += version.o
# command

23
cmd/panic.c Normal file
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@ -0,0 +1,23 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) 2020 Theobroma Systems Design und Consulting GmbH
*/
#include <common.h>
#include <command.h>
static int do_panic(struct cmd_tbl *cmdtp, int flag, int argc,
char * const argv[])
{
char *text = (argc < 2) ? "" : argv[1];
panic(text);
return CMD_RET_SUCCESS;
}
U_BOOT_CMD(
panic, 2, 1, do_panic,
"Panic with optional message",
"[message]"
);