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ARM: imx: Add support for reading out the primary/secondary bmode

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Add new 'getprisec' subcommand to 'bmode' command, which sets the return
value of the 'bmode' command to either 0 if the system booted from primary
copy or to 1 if the system booted from secondary copy. This can be used
e.g. in 'test' command to determine which copy of the system is running.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: NXP i.MX U-Boot Team <uboot-imx@nxp.com>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
Reviewed-by: Stefano Babic <sbabic@denx.de>
This commit is contained in:
Marek Vasut 2020-08-05 15:34:06 +02:00 • committed by Stefano Babic
parent 5ec83561c4
commit 3c0fbbfd95
1 changed files with 12 additions and 0 deletions
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12
arch/arm/mach-imx/cmd_bmode.c
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@ -51,9 +51,19 @@ static int create_usage(char *dest)
if (dest) if (dest)
memcpy(dest - 1, " [noreset]", 11); /* include trailing 0 */ memcpy(dest - 1, " [noreset]", 11); /* include trailing 0 */
size += 10; size += 10;
if (dest)
memcpy(dest - 1, "\nbmode - getprisec", 19);
size += 18;
return size; return size;
} }
__weak int boot_mode_getprisec(void)
{
return 0;
}
static int do_boot_mode(struct cmd_tbl *cmdtp, int flag, int argc, static int do_boot_mode(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[]) char *const argv[])
{ {
@ -62,6 +72,8 @@ static int do_boot_mode(struct cmd_tbl *cmdtp, int flag, int argc,
if (argc < 2) if (argc < 2)
return CMD_RET_USAGE; return CMD_RET_USAGE;
if (!strcmp(argv[1], "getprisec"))
return boot_mode_getprisec();
p = search_modes(argv[1]); p = search_modes(argv[1]);
if (!p) if (!p)
return CMD_RET_USAGE; return CMD_RET_USAGE;