From 326e5c8d4a87512ee329efc1b45029767ec710bb Mon Sep 17 00:00:00 2001 From: Mason Yang Date: Wed, 17 Oct 2018 10:08:12 +0800 Subject: [PATCH] dt-binding: spi: Document Macronix controller bindings Document the bindings used by the Macronix controller. Signed-off-by: Mason Yang Reviewed-by: Boris Brezillon Signed-off-by: Mark Brown --- .../devicetree/bindings/spi/spi-mxic.txt | 34 +++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 Documentation/devicetree/bindings/spi/spi-mxic.txt diff --git a/Documentation/devicetree/bindings/spi/spi-mxic.txt b/Documentation/devicetree/bindings/spi/spi-mxic.txt new file mode 100644 index 000000000000..529f2dab2648 --- /dev/null +++ b/Documentation/devicetree/bindings/spi/spi-mxic.txt @@ -0,0 +1,34 @@ +Macronix SPI controller Device Tree Bindings +-------------------------------------------- + +Required properties: +- compatible: should be "mxicy,mx25f0a-spi" +- #address-cells: should be 1 +- #size-cells: should be 0 +- reg: should contain 2 entries, one for the registers and one for the direct + mapping area +- reg-names: should contain "regs" and "dirmap" +- interrupts: interrupt line connected to the SPI controller +- clock-names: should contain "ps_clk", "send_clk" and "send_dly_clk" +- clocks: should contain 3 entries for the "ps_clk", "send_clk" and + "send_dly_clk" clocks + +Example: + + spi@43c30000 { + compatible = "mxicy,mx25f0a-spi"; + reg = <0x43c30000 0x10000>, <0xa0000000 0x20000000>; + reg-names = "regs", "dirmap"; + clocks = <&clkwizard 0>, <&clkwizard 1>, <&clkc 18>; + clock-names = "send_clk", "send_dly_clk", "ps_clk"; + #address-cells = <1>; + #size-cells = <0>; + + flash@0 { + compatible = "jedec,spi-nor"; + reg = <0>; + spi-max-frequency = <25000000>; + spi-tx-bus-width = <4>; + spi-rx-bus-width = <4>; + }; + }; -- GitLab