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stm32mp: cmd_stm32key: use sub command

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Simplify parsing the command argument by using
the macro U_BOOT_CMD_WITH_SUBCMDS.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
This commit is contained in:
Patrick Delaunay 2021-06-28 14:55:58 +02:00
parent 3a99481159
commit bc78d5f25a
1 changed files with 38 additions and 21 deletions
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59
arch/arm/mach-stm32mp/cmd_stm32key.c
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@ -67,36 +67,53 @@ static int confirm_prog(void)
return 0;
}
static int do_stm32key(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
static int do_stm32key_read(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
{
u32 addr;
const char *op = argc >= 2 ? argv[1] : NULL;
int confirmed = argc > 3 && !strcmp(argv[2], "-y");
argc -= 2 + confirmed;
argv += 2 + confirmed;
if (argc < 1)
if (argc == 1)
return CMD_RET_USAGE;
addr = simple_strtoul(argv[0], NULL, 16);
addr = simple_strtoul(argv[1], NULL, 16);
if (!addr)
return CMD_RET_USAGE;
if (!strcmp(op, "read"))
read_hash_value(addr);
if (!strcmp(op, "fuse")) {
if (!confirmed && !confirm_prog())
return CMD_RET_FAILURE;
fuse_hash_value(addr, !confirmed);
}
read_hash_value(addr);
return CMD_RET_SUCCESS;
}
U_BOOT_CMD(stm32key, 4, 1, do_stm32key,
"Fuse ST Hash key",
"read <addr>: Read the hash store at addr in memory\n"
"stm32key fuse [-y] <addr> : Fuse hash store at addr in otp\n");
static int do_stm32key_fuse(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
{
u32 addr;
bool yes = false;
if (argc < 2)
return CMD_RET_USAGE;
if (argc == 3) {
if (strcmp(argv[1], "-y"))
return CMD_RET_USAGE;
yes = true;
}
addr = simple_strtoul(argv[argc - 1], NULL, 16);
if (!addr)
return CMD_RET_USAGE;
if (!yes && !confirm_prog())
return CMD_RET_FAILURE;
fuse_hash_value(addr, !yes);
printf("Hash key updated !\n");
return CMD_RET_SUCCESS;
}
static char stm32key_help_text[] =
"read <addr>: Read the hash stored at addr in memory\n"
"stm32key fuse [-y] <addr> : Fuse hash stored at addr in OTP\n";
U_BOOT_CMD_WITH_SUBCMDS(stm32key, "Fuse ST Hash key", stm32key_help_text,
U_BOOT_SUBCMD_MKENT(read, 2, 0, do_stm32key_read),
U_BOOT_SUBCMD_MKENT(fuse, 3, 0, do_stm32key_fuse));