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| author | Tom Rini <trini@konsulko.com> | 2020-05-29 23:54:01 -0400 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2020-05-29 23:54:01 -0400 |
| commit | 29b0540d5acc35c8096d7147d7574d0b3ae7dcc0 (patch) | |
| tree | 6db3ed3db2915a836f446f1adcf482146792338e /drivers/misc/i2c_eeprom.c | |
| parent | 606cced58bf44bdf640760711be40d15a169aa71 (diff) | |
| parent | b24dc83f156604f253ef6521776444188c5bff9b (diff) | |
Merge tag 'bugfixes-for-v2020.07-rc4' of https://gitlab.denx.de/u-boot/custodians/u-boot-i2c
i2c changes for v2020.07-rc4
- fix eeprom issue with AT24MAC402 (address != 0)
- fix in i2c-uclass.c when compiling compiling with -Wtype-limits
- designware_i2c: small fixes:
- check if the device is powered
- tidy up use of NULL priv
Diffstat (limited to 'drivers/misc/i2c_eeprom.c')
| -rw-r--r-- | drivers/misc/i2c_eeprom.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/misc/i2c_eeprom.c b/drivers/misc/i2c_eeprom.c index ed23a623846..45c34d388c8 100644 --- a/drivers/misc/i2c_eeprom.c +++ b/drivers/misc/i2c_eeprom.c @@ -18,6 +18,7 @@ struct i2c_eeprom_drv_data { u32 pagesize; /* page size in bytes */ u32 addr_offset_mask; /* bits in addr used for offset overflow */ u32 offset_len; /* size in bytes of offset */ + u32 start_offset; /* valid start offset inside memory, by default 0 */ }; int i2c_eeprom_read(struct udevice *dev, int offset, uint8_t *buf, int size) @@ -148,7 +149,11 @@ static int i2c_eeprom_std_probe(struct udevice *dev) i2c_set_chip_addr_offset_mask(dev, data->addr_offset_mask); /* Verify that the chip is functional */ - ret = i2c_eeprom_read(dev, 0, &test_byte, 1); + /* + * Not all eeproms start from offset 0. Valid offset is available + * in the platform data struct. + */ + ret = i2c_eeprom_read(dev, data->start_offset, &test_byte, 1); if (ret) return -ENODEV; @@ -216,6 +221,7 @@ static const struct i2c_eeprom_drv_data atmel24mac402_data = { .pagesize = 16, .addr_offset_mask = 0, .offset_len = 1, + .start_offset = 0x80, }; static const struct i2c_eeprom_drv_data atmel24c32_data = { |