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| author | Suneel Garapati <sgarapati@marvell.com> | 2020-05-26 15:13:07 +0300 |
|---|---|---|
| committer | Heiko Schocher <hs@denx.de> | 2020-07-09 07:02:44 +0300 |
| commit | 5c2c3e8b44e7fa9bc81e6e367797b3ee2b424168 (patch) | |
| tree | b317fc89db507fde6b48d46f6d7d7a5702f68e6d /doc | |
| parent | 61608f395e7dcb2be6060407a72a1149b046430a (diff) | |
| download | u-boot-5c2c3e8b44e7fa9bc81e6e367797b3ee2b424168.tar.xz | |
i2c: octeon_i2c: Add I2C controller driver for Octeon
Add support for I2C controllers found on Octeon II/III and Octeon TX
TX2 SoC platforms.
Signed-off-by: Aaron Williams <awilliams@marvell.com>
Signed-off-by: Suneel Garapati <sgarapati@marvell.com>
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Heiko Schocher <hs@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Cc: Aaron Williams <awilliams@marvell.com>
Cc: Chandrakala Chavva <cchavva@marvell.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com>
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/device-tree-bindings/i2c/octeon-i2c.txt | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/doc/device-tree-bindings/i2c/octeon-i2c.txt b/doc/device-tree-bindings/i2c/octeon-i2c.txt new file mode 100644 index 0000000000..9c1908ec2c --- /dev/null +++ b/doc/device-tree-bindings/i2c/octeon-i2c.txt @@ -0,0 +1,24 @@ +* I2C controller embedded in Marvell Octeon platforms + +Required properties : +- compatible : Must be "cavium,octeon-7890-twsi" or a compatible string +- reg : Offset and length of the register set for the device +- clocks: Must contain the input clock of the I2C instance +- #address-cells = <1>; +- #size-cells = <0>; + +Optional properties : +- clock-frequency : Desired I2C bus clock frequency in Hz. If not specified, + the default 100 kHz frequency will be used. As only Normal, Fast and Fast+ + modes are implemented, possible values are 100000, 400000 and 1000000. + +Example : + + i2c0: i2c@1180000001000 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "cavium,octeon-7890-twsi"; + reg = <0x11800 0x00001000 0x0 0x200>; + clock-frequency = <100000>; + clocks = <&sclk>; + }; |