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| author | Sagar Shrikant Kadam <sagar.kadam@sifive.com> | 2019-06-01 09:11:13 +0300 |
|---|---|---|
| committer | Wolfram Sang <wsa@the-dreams.de> | 2019-06-15 00:24:33 +0300 |
| commit | 7ea651ec392ecbd52227e009a482b571ce7b3bce (patch) | |
| tree | 30ad5523cef4a10225699a77ea2cc24b9cc3e54f /Documentation/devicetree/bindings/i2c | |
| parent | d680a50cb9c59669d4f695f732731ed298a31bec (diff) | |
| download | linux-7ea651ec392ecbd52227e009a482b571ce7b3bce.tar.xz | |
dt-bindings: i2c: extend existing opencore bindings
Reformatted compatibility strings to one valid combination on
each line.
Add FU540-C000 specific device tree bindings to already available
i2-ocores file. This device is available on
HiFive Unleashed Rev A00 board. Move interrupt under optional
property list as this can be optional.
The FU540-C000 SoC from sifive, has an Opencore's I2C block
reimplementation.
The DT compatibility string for this IP is present in HDL and available at.
https://github.com/sifive/sifive-blocks/blob/master/src/main/scala/devices/i2c/I2C.scala#L73
Signed-off-by: Sagar Shrikant Kadam <sagar.kadam@sifive.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Diffstat (limited to 'Documentation/devicetree/bindings/i2c')
| -rw-r--r-- | Documentation/devicetree/bindings/i2c/i2c-ocores.txt | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/i2c/i2c-ocores.txt b/Documentation/devicetree/bindings/i2c/i2c-ocores.txt index 17bef9a34e50..6b25a80ae8d3 100644 --- a/Documentation/devicetree/bindings/i2c/i2c-ocores.txt +++ b/Documentation/devicetree/bindings/i2c/i2c-ocores.txt @@ -1,9 +1,13 @@ Device tree configuration for i2c-ocores Required properties: -- compatible : "opencores,i2c-ocores" or "aeroflexgaisler,i2cmst" +- compatible : "opencores,i2c-ocores" + "aeroflexgaisler,i2cmst" + "sifive,fu540-c000-i2c", "sifive,i2c0" + For Opencore based I2C IP block reimplemented in + FU540-C000 SoC. Please refer to sifive-blocks-ip-versioning.txt + for additional details. - reg : bus address start and address range size of device -- interrupts : interrupt number - clocks : handle to the controller clock; see the note below. Mutually exclusive with opencores,ip-clock-frequency - opencores,ip-clock-frequency: frequency of the controller clock in Hz; @@ -12,6 +16,7 @@ Required properties: - #size-cells : should be <0> Optional properties: +- interrupts : interrupt number. - clock-frequency : frequency of bus clock in Hz; see the note below. Defaults to 100 KHz when the property is not specified - reg-shift : device register offsets are shifted by this value |