diff options
| author | Patrick Delaunay <patrick.delaunay@st.com> | 2019-02-04 11:26:22 +0100 |
|---|---|---|
| committer | Patrick Delaunay <patrick.delaunay@st.com> | 2019-04-12 16:09:13 +0200 |
| commit | 31e45a1a9ea07a9c36ada6401e4631a765398c75 (patch) | |
| tree | 5ea69378d77f91d367bac38b5243fc5a291dbb15 /drivers/misc | |
| parent | c8a6668cbdc0644330135b7016ffa3ea74895e64 (diff) | |
stpmic1: add NVM update support in fuse command
Add functions to read/update the non volatile memory of STPMIC1
(8 bytes-register at 0xF8 address) and allow access
with fuse command (bank=1, word > 0xF8).
For example:
STM32MP> fuse read 1 0xf8 8
Reading bank 1:
Word 0x000000f8: 000000ee 00000092 000000c0 00000002
Word 0x000000fc: 000000f2 00000080 00000002 00000033
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Diffstat (limited to 'drivers/misc')
| -rw-r--r-- | drivers/misc/stm32mp_fuse.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/misc/stm32mp_fuse.c b/drivers/misc/stm32mp_fuse.c index 33943a231b..8dc246b0db 100644 --- a/drivers/misc/stm32mp_fuse.c +++ b/drivers/misc/stm32mp_fuse.c @@ -9,8 +9,10 @@ #include <errno.h> #include <dm/device.h> #include <dm/uclass.h> +#include <power/stpmic1.h> #define STM32MP_OTP_BANK 0 +#define STM32MP_NVM_BANK 1 /* * The 'fuse' command API @@ -34,6 +36,13 @@ int fuse_read(u32 bank, u32 word, u32 *val) ret = 0; break; +#ifdef CONFIG_PMIC_STPMIC1 + case STM32MP_NVM_BANK: + *val = 0; + ret = stpmic1_shadow_read_byte(word, (u8 *)val); + break; +#endif /* CONFIG_PMIC_STPMIC1 */ + default: printf("stm32mp %s: wrong value for bank %i\n", __func__, bank); ret = -EINVAL; @@ -62,6 +71,12 @@ int fuse_prog(u32 bank, u32 word, u32 val) ret = 0; break; +#ifdef CONFIG_PMIC_STPMIC1 + case STM32MP_NVM_BANK: + ret = stpmic1_nvm_write_byte(word, (u8 *)&val); + break; +#endif /* CONFIG_PMIC_STPMIC1 */ + default: printf("stm32mp %s: wrong value for bank %i\n", __func__, bank); ret = -EINVAL; @@ -89,6 +104,13 @@ int fuse_sense(u32 bank, u32 word, u32 *val) ret = 0; break; +#ifdef CONFIG_PMIC_STPMIC1 + case STM32MP_NVM_BANK: + *val = 0; + ret = stpmic1_nvm_read_byte(word, (u8 *)val); + break; +#endif /* CONFIG_PMIC_STPMIC1 */ + default: printf("stm32mp %s: wrong value for bank %i\n", __func__, bank); ret = -EINVAL; @@ -117,6 +139,12 @@ int fuse_override(u32 bank, u32 word, u32 val) ret = 0; break; +#ifdef CONFIG_PMIC_STPMIC1 + case STM32MP_NVM_BANK: + ret = stpmic1_shadow_write_byte(word, (u8 *)&val); + break; +#endif /* CONFIG_PMIC_STPMIC1 */ + default: printf("stm32mp %s: wrong value for bank %i\n", __func__, bank); |