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stpmic1: add NVM update support in fuse command

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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>
This commit is contained in:
Patrick Delaunay
2019-02-04 11:26:22 +01:00
parent c8a6668cbd
commit 31e45a1a9e
3 changed files with 149 additions and 0 deletions
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7
include/power/stpmic1.h
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@@ -107,4 +107,11 @@ enum {
STPMIC1_PWR_SW2,
STPMIC1_MAX_PWR_SW,
};
int stpmic1_shadow_read_byte(u8 addr, u8 *buf);
int stpmic1_shadow_write_byte(u8 addr, u8 *buf);
int stpmic1_nvm_read_byte(u8 addr, u8 *buf);
int stpmic1_nvm_write_byte(u8 addr, u8 *buf);
int stpmic1_nvm_read_all(u8 *buf, int buf_len);
int stpmic1_nvm_write_all(u8 *buf, int buf_len);
#endif