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authorƁukasz Majewski <l.majewski@samsung.com>2012-09-04 23:15:20 +0000
committerHeiko Schocher <hs@denx.de>2012-09-17 09:39:50 +0200
commit7ca8f73a0ad9176e6e45190a3490bbeb3d80e018 (patch)
tree70dc1bcf7f4b35aa0a92483f5a0611d549a0118a /include/i2c.h
parenta532278074f1d1fa7d46b144e0d4b824ae7d3335 (diff)
downloadu-boot-7ca8f73a0ad9176e6e45190a3490bbeb3d80e018.tar.gz
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.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/include/i2c.h b/include/i2c.h
index 1f35acf675..16f099d2ee 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_ */