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| author | Angus Ainslie <angus@akkea.ca> | 2021-11-28 08:02:52 -0800 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2022-02-18 18:12:23 +0100 |
| commit | c2a4af5ca8032d69818bac6d4030233af50f09a9 (patch) | |
| tree | 8652837e3633fcdfc7fe5c82a6ff6c828c165042 /cmd/fuse.c | |
| parent | 8ad1c9c26f7740806a162818b790d4a72f515b7e (diff) | |
| download | u-boot-c2a4af5ca8032d69818bac6d4030233af50f09a9.tar.gz u-boot-c2a4af5ca8032d69818bac6d4030233af50f09a9.tar.bz2 u-boot-c2a4af5ca8032d69818bac6d4030233af50f09a9.zip | |
cmd: fuse: add a fuse comparison function
Compare a hexval to the fuse value and return pass or fail.
Signed-off-by: Angus Ainslie <angus@akkea.ca>
Diffstat (limited to 'cmd/fuse.c')
| -rw-r--r-- | cmd/fuse.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/cmd/fuse.c b/cmd/fuse.c index e001619d17..78b1065d99 100644 --- a/cmd/fuse.c +++ b/cmd/fuse.c @@ -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" |