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misc: fuse: update the code for accessing fuse of i.MX93

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Sentinel have read access of OTP shadow register 0-511, and fsb have
read access of shadow 0-51/312-511.

Reviewed-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Alice Guo <alice.guo@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
This commit is contained in:
Alice Guo 2022-07-26 16:41:00 +08:00 committed by Stefano Babic
parent 31b3ca5527
commit 5e2612f1dc
1 changed files with 74 additions and 12 deletions
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86
drivers/misc/sentinel/fuse.c
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@ -75,22 +75,44 @@ struct fsb_map_entry fsb_mapping_table[] = {
{ 0, 8 },
{ 1, 8 },
{ 2, 8 },
{ -1, 8 },
{ 3, 8 },
{ 4, 8 },
{ 5, 8 },
{ 6, 8 }, /* UID */
{ -1, 8 },
{ 8, 8 },
{ 9, 8 },
{ 10, 8 },
{ 6, 4 },
{ -1, 260 },
{ 39, 8 },
{ 40, 8 },
{ 41, 8 },
{ 42, 8 },
{ 43, 8 },
{ 44, 8 },
{ 45, 8 },
{ 46, 8 },
{ 47, 8 },
{ 48, 8 },
{ 49, 8 },
{ 50, 8 },
{ 51, 8 },
{ 52, 8 },
{ 53, 8 },
{ 54, 8 },
{ 55, 8 },
{ 56, 8 },
{ 57, 8 },
{ 58, 8 },
{ 59, 8 },
{ 60, 8 },
{ 61, 8 },
{ 62, 8 },
{ 63, 8 },
};
struct s400_map_entry s400_api_mapping_table[] = {
{ 3, 11 }, /* 24 .. 34 */
{ 7, 8 },
{ 16, 11 }, /* 128 .. 143 */
{ 22, 8 },
{ 23, 8 },
{ 7, 1, 7, 63 },
{ 16, 8, },
{ 17, 8, },
{ 22, 1, 6 },
{ 23, 1, 4 },
};
#endif
@ -102,7 +124,8 @@ static s32 map_fsb_fuse_index(u32 bank, u32 word, bool *redundancy)
/* map the fuse from ocotp fuse map to FSB*/
for (i = 0; i < size; i++) {
if (fsb_mapping_table[i].fuse_bank != -1 &&
fsb_mapping_table[i].fuse_bank == bank) {
fsb_mapping_table[i].fuse_bank == bank &&
fsb_mapping_table[i].fuse_words > word) {
break;
}
@ -146,6 +169,7 @@ static s32 map_s400_fuse_index(u32 bank, u32 word)
return s400_api_mapping_table[i].fuse_bank * 8 + word;
}
#if defined(CONFIG_IMX8ULP)
int fuse_sense(u32 bank, u32 word, u32 *val)
{
s32 word_index;
@ -198,6 +222,44 @@ int fuse_sense(u32 bank, u32 word, u32 *val)
return -ENOENT;
}
#elif defined(CONFIG_ARCH_IMX9)
int fuse_sense(u32 bank, u32 word, u32 *val)
{
s32 word_index;
bool redundancy;
if (bank >= FUSE_BANKS || word >= WORDS_PER_BANKS || !val)
return -EINVAL;
word_index = map_fsb_fuse_index(bank, word, &redundancy);
if (word_index >= 0) {
*val = readl((ulong)FSB_BASE_ADDR + FSB_OTP_SHADOW + (word_index << 2));
if (redundancy)
*val = (*val >> ((word % 2) * 16)) & 0xFFFF;
return 0;
}
word_index = map_s400_fuse_index(bank, word);
if (word_index >= 0) {
u32 data;
u32 res, size = 1;
int ret;
ret = ahab_read_common_fuse(word_index, &data, size, &res);
if (ret) {
printf("ahab read fuse failed %d, 0x%x\n", ret, res);
return ret;
}
*val = data;
return 0;
}
return -ENOENT;
}
#endif
int fuse_read(u32 bank, u32 word, u32 *val)
{