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| author | Rajeshwari Shinde <rajeshwari.s@samsung.com> | 2012-12-26 20:03:12 +0000 |
|---|---|---|
| committer | Minkyu Kang <mk7.kang@samsung.com> | 2013-01-08 10:54:33 +0900 |
| commit | a9d2ae7014d9e66dde6dd4a344308449508e4a22 (patch) | |
| tree | e8f2248447d9831045a1de483444a39081bbce27 /include/i2c.h | |
| parent | d055911887583e36e550900506c80fbd73c89a58 (diff) | |
| download | u-boot-imx-a9d2ae7014d9e66dde6dd4a344308449508e4a22.zip u-boot-imx-a9d2ae7014d9e66dde6dd4a344308449508e4a22.tar.gz u-boot-imx-a9d2ae7014d9e66dde6dd4a344308449508e4a22.tar.bz2 | |
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 <rajeshwari.s@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Acked-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Diffstat (limited to 'include/i2c.h')
| -rw-r--r-- | include/i2c.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/include/i2c.h b/include/i2c.h index 16f099d..c60d075 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_ */ |