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| author | Alexander Aring <a.aring@phytec.de> | 2011-12-21 08:50:27 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2011-12-21 12:46:01 +0100 |
| commit | 8007b25bdfa353cbce71c849a41f474604648ebf (patch) | |
| tree | 322bf1a8d57ea2c1d357dba91ee3f2393e31896a /arch/arm/mach-omap | |
| parent | 56d0d5012f2771fe6a5667bec1ef2334c5a6c005 (diff) | |
| download | barebox-8007b25bdfa353cbce71c849a41f474604648ebf.tar.gz barebox-8007b25bdfa353cbce71c849a41f474604648ebf.tar.xz | |
i2c-omap: add i2c omap4 support
Added i2c support for omap4. Tested on pcm049.
Driver based on linux kernel implementation.
Also added a shift to access 16-bit registers
to make support for OMAP730/850 possible.
If accessing a non existing slave the bus will go into arbitration mode.
It's unable to recover from it.
Signed-off-by: Alexander Aring <a.aring@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm/mach-omap')
| -rw-r--r-- | arch/arm/mach-omap/include/mach/generic.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/arm/mach-omap/include/mach/generic.h b/arch/arm/mach-omap/include/mach/generic.h index a2dd229c1c..c801a068e3 100644 --- a/arch/arm/mach-omap/include/mach/generic.h +++ b/arch/arm/mach-omap/include/mach/generic.h @@ -5,6 +5,7 @@ /* I2C controller revisions present on specific hardware */ #define OMAP_I2C_REV_ON_2430 0x36 #define OMAP_I2C_REV_ON_3430 0x3C +#define OMAP_I2C_REV_ON_4430 0x40 #ifdef CONFIG_ARCH_OMAP #define cpu_is_omap2430() (1) @@ -17,3 +18,9 @@ #else #define cpu_is_omap34xx() (0) #endif + +#ifdef CONFIG_ARCH_OMAP4 +#define cpu_is_omap4xxx() (1) +#else +#define cpu_is_omap4xxx() (0) +#endif |