Commit 8efaff50 authored Feb 27, 2018 by Stefan Agner Committed by Shawn Guo Feb 28, 2018

ARM: dts: imx7s: add spba-bus abstraction



According to the i.MX 7Solo/Dual Application Processor Reference
Manual the ECSPI1/2/3, UART1/2/3 and SAI1/2/3 peripherals are
connected through the SPBA bus. Other similar SoCs such as i.MX 6UL
add this bus abstraction. This adds the bus also to the i.MX 7
device tree.

The i.MX SDMA driver uses this abstraction to configure watermark
levels slightly differently, so this might change behavior slightly.
There have no issues been observed before or after the patch.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

parent 2f953ee9

arch/arm/boot/dts/imx7s.dtsi

+111 −103

Original line number	Diff line number	Diff line
		@@ -714,6 +714,13 @@
		reg = <0x30800000 0x400000>;
		ranges;

		spba-bus@30800000 {
		compatible = "fsl,spba-bus", "simple-bus";
		#address-cells = <1>;
		#size-cells = <1>;
		reg = <0x30800000 0x100000>;
		ranges;

		ecspi1: ecspi@30820000 {
		#address-cells = <1>;
		#size-cells = <0>;
		@@ -827,6 +834,7 @@
		dmas = <&sdma 12 24 0>, <&sdma 13 24 0>;
		status = "disabled";
		};
		};

		flexcan1: can@30a00000 {
		compatible = "fsl,imx7d-flexcan", "fsl,imx6q-flexcan";

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