Unverified Commit 66e40b35 authored Oct 24, 2019 by Jernej Skrabec Committed by Maxime Ripard Nov 05, 2019

ARM: dts: sunxi: h3/h5: Add MBUS controller node



Both, H3 and H5, contain MBUS, which is the bus used by DMA devices to
access system memory.

MBUS controller is responsible for arbitration between channels based
on set priority and can do some other things as well, like report
bandwidth used. It also maps RAM region to different address than CPU.

Acked-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>

parent ab883313

arch/arm/boot/dts/sunxi-h3-h5.dtsi

+9 −0

Original line number	Diff line number	Diff line
		@@ -109,6 +109,7 @@
		compatible = "simple-bus";
		#address-cells = <1>;
		#size-cells = <1>;
		dma-ranges;
		ranges;

		display_clocks: clock@1000000 {
		@@ -543,6 +544,14 @@
		};
		};

		mbus: dram-controller@1c62000 {
		compatible = "allwinner,sun8i-h3-mbus";
		reg = <0x01c62000 0x1000>;
		clocks = <&ccu 113>;
		dma-ranges = <0x00000000 0x40000000 0xc0000000>;
		#interconnect-cells = <1>;
		};

		spi0: spi@1c68000 {
		compatible = "allwinner,sun8i-h3-spi";
		reg = <0x01c68000 0x1000>;

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