From: Alice Guo alice.guo@nxp.com
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 --- drivers/misc/sentinel/fuse.c | 86 +++++++++++++++++++++++++++++++----- 1 file changed, 74 insertions(+), 12 deletions(-)
diff --git a/drivers/misc/sentinel/fuse.c b/drivers/misc/sentinel/fuse.c index abb4c072f9b..e2b68757664 100644 --- a/drivers/misc/sentinel/fuse.c +++ b/drivers/misc/sentinel/fuse.c @@ -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) {