From a9d2ae7014d9e66dde6dd4a344308449508e4a22 Mon Sep 17 00:00:00 2001 From: Rajeshwari Shinde Date: Wed, 26 Dec 2012 20:03:12 +0000 Subject: I2C: Driver changes for FDT support Functions added to get the I2C bus number and reset I2C bus using FDT node. Signed-off-by: Rajeshwari Shinde Acked-by: Simon Glass Acked-by: Heiko Schocher Signed-off-by: Minkyu Kang --- include/i2c.h | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) (limited to 'include/i2c.h') diff --git a/include/i2c.h b/include/i2c.h index 16f099d2ee..c60d07583b 100644 --- a/include/i2c.h +++ b/include/i2c.h @@ -262,4 +262,30 @@ extern int get_multi_scl_pin(void); extern int get_multi_sda_pin(void); extern int multi_i2c_init(void); #endif + +/** + * Get FDT values for i2c bus. + * + * @param blob Device tree blbo + * @return the number of I2C bus + */ +void board_i2c_init(const void *blob); + +/** + * Find the I2C bus number by given a FDT I2C node. + * + * @param blob Device tree blbo + * @param node FDT I2C node to find + * @return the number of I2C bus (zero based), or -1 on error + */ +int i2c_get_bus_num_fdt(int node); + +/** + * Reset the I2C bus represented by the given a FDT I2C node. + * + * @param blob Device tree blbo + * @param node FDT I2C node to find + * @return 0 if port was reset, -1 if not found + */ +int i2c_reset_port_fdt(const void *blob, int node); #endif /* _I2C_H_ */ -- cgit v1.2.1