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cmd: fuse: add a fuse comparison function

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Compare a hexval to the fuse value and return pass or fail.

Signed-off-by: Angus Ainslie <angus@akkea.ca>
This commit is contained in:
Angus Ainslie 2021-11-28 08:02:52 -08:00 committed by Stefano Babic
parent 8ad1c9c26f
commit c2a4af5ca8
1 changed files with 21 additions and 1 deletions
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22
cmd/fuse.c
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@ -45,7 +45,7 @@ static int do_fuse(struct cmd_tbl *cmdtp, int flag, int argc,
{
const char *op = argc >= 2 ? argv[1] : NULL;
int confirmed = argc >= 3 && !strcmp(argv[2], "-y");
u32 bank, word, cnt, val;
u32 bank, word, cnt, val, cmp;
int ret, i;
argc -= 2 + confirmed;
@ -73,6 +73,24 @@ static int do_fuse(struct cmd_tbl *cmdtp, int flag, int argc,
printf(" %.8x", val);
}
putc('\n');
} else if (!strcmp(op, "cmp")) {
if (argc != 3 || strtou32(argv[2], 0, &cmp))
return CMD_RET_USAGE;
printf("Comparing bank %u:\n", bank);
printf("\nWord 0x%.8x:", word);
printf("\nValue 0x%.8x:", cmp);
ret = fuse_read(bank, word, &val);
if (ret)
goto err;
printf("0x%.8x\n", val);
if (val != cmp) {
printf("failed\n");
return CMD_RET_FAILURE;
}
printf("passed\n");
} else if (!strcmp(op, "sense")) {
if (argc == 2)
cnt = 1;
@ -137,6 +155,8 @@ U_BOOT_CMD(
"Fuse sub-system",
"read <bank> <word> [<cnt>] - read 1 or 'cnt' fuse words,\n"
" starting at 'word'\n"
"fuse cmp <bank> <word> <hexval> - compare 'hexval' to fuse\n"
" at 'word'\n"
"fuse sense <bank> <word> [<cnt>] - sense 1 or 'cnt' fuse words,\n"
" starting at 'word'\n"
"fuse prog [-y] <bank> <word> <hexval> [<hexval>...] - program 1 or\n"