diff options
| author | Anatolij Gustschin <agust@denx.de> | 2011-07-26 04:13:27 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-07-26 07:57:16 +0400 |
| commit | 06b4501e88ad10f02849a3f9d7408ed6ae15a53f (patch) | |
| tree | 641a1c6044582b393ad4d877f6a9924cc495bfc0 /include/linux/eeprom_93xx46.h | |
| parent | 6e60c02e9d9427f59842192bdb123cbeaf8bc9a0 (diff) | |
| download | linux-06b4501e88ad10f02849a3f9d7408ed6ae15a53f.tar.xz | |
misc/eeprom: add driver for microwire 93xx46 EEPROMs
Add EEPROM driver for 93xx46 chips. It can also be used with spi_gpio
driver to access 93xx46 EEPROMs connected over GPIO lines. This driver
supports read/write/erase access to the EEPROM chips over sysfs files.
[rdunlap@xenotime.net: fix printk format]
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Cc: Jonathan Cameron <jic23@cam.ac.uk>
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/eeprom_93xx46.h')
| -rw-r--r-- | include/linux/eeprom_93xx46.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/include/linux/eeprom_93xx46.h b/include/linux/eeprom_93xx46.h new file mode 100644 index 000000000000..06791811e49d --- /dev/null +++ b/include/linux/eeprom_93xx46.h @@ -0,0 +1,18 @@ +/* + * Module: eeprom_93xx46 + * platform description for 93xx46 EEPROMs. + */ + +struct eeprom_93xx46_platform_data { + unsigned char flags; +#define EE_ADDR8 0x01 /* 8 bit addr. cfg */ +#define EE_ADDR16 0x02 /* 16 bit addr. cfg */ +#define EE_READONLY 0x08 /* forbid writing */ + + /* + * optional hooks to control additional logic + * before and after spi transfer. + */ + void (*prepare)(void *); + void (*finish)(void *); +}; |