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mxc_ocotp: Update redundancy banks for mx7ulp B0

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On mx7ulp B0, beside bank 0 and 1, the fuse bank 9, 10, 28 are changed to
Redundancy mode not ECC, so they can support to program different bits of
a word in multiple times.

Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
This commit is contained in:
Ye Li 2019-04-17 09:41:20 +00:00 • committed by Stefano Babic
parent 702339bdf4
commit 112ad60058
1 changed files with 10 additions and 6 deletions
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16
drivers/misc/mxc_ocotp.c
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@ -354,13 +354,17 @@ static int prepare_write(struct ocotp_regs **regs, u32 bank, u32 word,
/* Only bank 0 and 1 are redundancy mode, others are ECC mode */
if (bank != 0 && bank != 1) {
ret = fuse_sense(bank, word, &val);
if (ret)
return ret;
if ((soc_rev() < CHIP_REV_2_0) ||
((soc_rev() >= CHIP_REV_2_0) &&
bank != 9 && bank != 10 && bank != 28)) {
ret = fuse_sense(bank, word, &val);
if (ret)
return ret;
if (val != 0) {
printf("mxc_ocotp: The word has been programmed, no more write\n");
return -EPERM;
if (val != 0) {
printf("mxc_ocotp: The word has been programmed, no more write\n");
return -EPERM;
}
}
}
#endif