diff options
Diffstat (limited to 'drivers/misc/sentinel/fuse.c')
| -rw-r--r-- | drivers/misc/sentinel/fuse.c | 32 |
1 files changed, 31 insertions, 1 deletions
diff --git a/drivers/misc/sentinel/fuse.c b/drivers/misc/sentinel/fuse.c index e2b68757664..99342d33c06 100644 --- a/drivers/misc/sentinel/fuse.c +++ b/drivers/misc/sentinel/fuse.c @@ -60,6 +60,11 @@ struct fsb_map_entry fsb_mapping_table[] = { { 46, 8 }, }; +/* None ECC banks such like Redundancy or Bit protect */ +u32 nonecc_fuse_banks[] = { + 0, 1, 8, 12, 16, 22, 24, 25, 26, 27, 36, 41, 51, 56 +}; + struct s400_map_entry s400_api_mapping_table[] = { { 1, 8 }, /* LOCK */ { 2, 8 }, /* ECID */ @@ -67,6 +72,16 @@ struct s400_map_entry s400_api_mapping_table[] = { { 15, 8 }, /* OEM SRK HASH */ { 23, 1, 4, 2 }, /* OTFAD */ { 25, 8 }, /* Test config2 */ + { 26, 8 }, /* PMU */ + { 27, 8 }, /* Test flow/USB */ + { 32, 8 }, /* GP1 */ + { 33, 8 }, /* GP2 */ + { 34, 8 }, /* GP3 */ + { 35, 8 }, /* GP4 */ + { 36, 8 }, /* GP5 */ + { 49, 8 }, /* GP8 */ + { 50, 8 }, /* GP9 */ + { 51, 8 }, /* GP10 */ }; #elif defined(CONFIG_ARCH_IMX9) #define FSB_OTP_SHADOW 0x8000 @@ -270,11 +285,26 @@ int fuse_prog(u32 bank, u32 word, u32 val) { u32 res; int ret; + bool lock = false; if (bank >= FUSE_BANKS || word >= WORDS_PER_BANKS || !val) return -EINVAL; - ret = ahab_write_fuse((bank * 8 + word), val, false, &res); + /* Lock 8ULP ECC fuse word, so second programming will return failure. + * iMX9 OTP can protect ECC fuse, so not need it + */ +#if defined(CONFIG_IMX8ULP) + u32 i; + for (i = 0; i < ARRAY_SIZE(nonecc_fuse_banks); i++) { + if (nonecc_fuse_banks[i] == bank) + break; + } + + if (i == ARRAY_SIZE(nonecc_fuse_banks)) + lock = true; +#endif + + ret = ahab_write_fuse((bank * 8 + word), val, lock, &res); if (ret) { printf("ahab write fuse failed %d, 0x%x\n", ret, res); return ret; |