OpenWrt
/branches/18.06.1/target/linux/brcm63xx/patches-4.9/001-4.12-02-spi-bcm63xx-document-device-tree-bindings.patch |
@@ -0,0 +1,50 @@ |
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>; |
+ }; |