From 0a0c39044332a75eaf4a3c5654079df953b0d839 Mon Sep 17 00:00:00 2001 From: Jonas Gorski <jogo@openwrt.org> Date: Mon, 7 Sep 2015 21:00:38 +0200 Subject: [PATCH 3/8] spi/bcm63xx: document device tree bindings Add documentation for the bindings of the low speed SPI controller found on most bcm63xx SoCs. Signed-off-by: Jonas Gorski <jogo@openwrt.org> --- .../devicetree/bindings/spi/spi-bcm63xx.txt | 33 ++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 Documentation/devicetree/bindings/spi/spi-bcm63xx.txt --- /dev/null +++ b/Documentation/devicetree/bindings/spi/spi-bcm63xx.txt @@ -0,0 +1,33 @@ +Binding for Broadcom BCM6348/BCM6358 SPI controller + +Required properties: +- compatible: must contain one of "brcm,bcm6348-spi", "brcm,bcm6358-spi". +- reg: Base address and size of the controllers memory area. +- interrupts: Interrupt for the SPI block. +- clocks: phandle of the SPI clock. +- clock-names: has to be "spi". +- #address-cells: <1>, as required by generic SPI binding. +- #size-cells: <0>, also as required by generic SPI binding. + +Optional properties: +- num-cs: some controllers have less than 8 cs signals. Defaults to 8 + if absent. + +Child nodes as per the generic SPI binding. + +Example: + + spi@10000800 { + compatible = "brcm,bcm6368-spi", "brcm,bcm6358-spi"; + reg = <0x10000800 0x70c>; + + interrupts = <1>; + + clocks = <&clkctl 9>; + clock-names = "spi"; + + num-cs = <5>; + + #address-cells = <1>; + #size-cells = <0>; + };