diff options
| author | Łukasz Majewski <l.majewski@samsung.com> | 2012-09-04 23:15:20 +0000 |
|---|---|---|
| committer | Heiko Schocher <hs@denx.de> | 2012-09-17 09:39:50 +0200 |
| commit | 7ca8f73a0ad9176e6e45190a3490bbeb3d80e018 (patch) | |
| tree | 70dc1bcf7f4b35aa0a92483f5a0611d549a0118a /include/i2c.h | |
| parent | a532278074f1d1fa7d46b144e0d4b824ae7d3335 (diff) | |
| download | olio-uboot-2014.01-7ca8f73a0ad9176e6e45190a3490bbeb3d80e018.tar.xz olio-uboot-2014.01-7ca8f73a0ad9176e6e45190a3490bbeb3d80e018.zip | |
i2c:soft:multi: Support for multiple soft I2C buses at Samsung boards
Support for multiple soft I2C buses.
Multibus I2C support is achieved by defining get_multi_{sda|scl}_pin
functions to switch between multiple "soft" I2C buses.
Common definition of I2C_X I2C buses is provided at <i2c.h>.
TEST HW:
Samsung's Exynos4210 evt.0.1 - Trats development board
Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Heiko Schocher <hs@denx.de>
Cc: Minkyu Kang <mk7.kang@samsung.com>
Acked-by: Heiko Schocher <hs@denx.de>
Diffstat (limited to 'include/i2c.h')
| -rw-r--r-- | include/i2c.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/i2c.h b/include/i2c.h index 1f35acf67..16f099d2e 100644 --- a/include/i2c.h +++ b/include/i2c.h @@ -250,4 +250,16 @@ static inline void I2C_SET_BUS(unsigned int bus) i2c_set_bus_num(bus); } +/* Multi I2C definitions */ +enum { + I2C_0, I2C_1, I2C_2, I2C_3, I2C_4, I2C_5, I2C_6, I2C_7, + I2C_8, I2C_9, I2C_10, +}; + +/* Multi I2C busses handling */ +#ifdef CONFIG_SOFT_I2C_MULTI_BUS +extern int get_multi_scl_pin(void); +extern int get_multi_sda_pin(void); +extern int multi_i2c_init(void); +#endif #endif /* _I2C_H_ */ |