dd6fd4a327
Add support for on-chip I2C controller used on old UniPhier SoCs such as PH1-LD4, PH1-sLD8, etc. This adapter is so simple that it has no FIFO in it. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
26 lines
693 B
Plaintext
26 lines
693 B
Plaintext
UniPhier I2C controller (FIFO-less)
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Required properties:
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- compatible: should be "socionext,uniphier-i2c".
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- #address-cells: should be 1.
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- #size-cells: should be 0.
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- reg: offset and length of the register set for the device.
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- interrupts: a single interrupt specifier.
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- clocks: phandle to the input clock.
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Optional properties:
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- clock-frequency: desired I2C bus frequency in Hz. The maximum supported
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value is 400000. Defaults to 100000 if not specified.
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Examples:
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i2c0: i2c@58400000 {
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compatible = "socionext,uniphier-i2c";
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reg = <0x58400000 0x40>;
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#address-cells = <1>;
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#size-cells = <0>;
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interrupts = <0 41 1>;
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clocks = <&i2c_clk>;
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clock-frequency = <100000>;
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};
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