From 7ca8f73a0ad9176e6e45190a3490bbeb3d80e018 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C5=81ukasz=20Majewski?= <l.majewski@samsung.com>
Date: Tue, 4 Sep 2012 23:15:20 +0000
Subject: 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>
---
 include/i2c.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'include/i2c.h')

diff --git a/include/i2c.h b/include/i2c.h
index 1f35acf..16f099d 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_ */
-- 
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