apfs/linux-apfs
0
0
Fork 0
mirror of https://github.com/linux-apfs/linux-apfs.git synced 2026-05-01 15:00:59 -07:00
Code Issues Packages Projects Releases Wiki Activity

misc/eeprom: add driver for microwire 93xx46 EEPROMs

Browse Source 
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>
This commit is contained in:
Anatolij Gustschin
2011-07-25 17:13:27 -07:00
committed by Linus Torvalds
parent 6e60c02e9d
commit 06b4501e88
4 changed files with 442 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
include/linux/eeprom_93xx46.h
+18
View File
@@ -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 *);
};