From 5d4ab8d0960e399e85a55e659b11cfc86a03a776 Mon Sep 17 00:00:00 2001 From: Eugeniy Paltsev Date: Tue, 19 Feb 2019 13:52:26 +0300 Subject: [PATCH] ARC: [plat-hsdk]: Enable AXI DW DMAC support Signed-off-by: Eugeniy Paltsev Signed-off-by: Vineet Gupta --- arch/arc/boot/dts/hsdk.dts | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/arch/arc/boot/dts/hsdk.dts b/arch/arc/boot/dts/hsdk.dts index b62088b..69bc1c9e 100644 --- a/arch/arc/boot/dts/hsdk.dts +++ b/arch/arc/boot/dts/hsdk.dts @@ -167,6 +167,18 @@ #clock-cells = <0>; }; + dmac_core_clk: dmac-core-clk { + compatible = "fixed-clock"; + clock-frequency = <400000000>; + #clock-cells = <0>; + }; + + dmac_cfg_clk: dmac-gpu-cfg-clk { + compatible = "fixed-clock"; + clock-frequency = <200000000>; + #clock-cells = <0>; + }; + gmac: ethernet@8000 { #interrupt-cells = <1>; compatible = "snps,dwmac"; @@ -239,6 +251,21 @@ reg = <0>; }; }; + + dmac: dmac@80000 { + compatible = "snps,axi-dma-1.01a"; + reg = <0x80000 0x400>; + interrupts = <27>; + clocks = <&dmac_core_clk>, <&dmac_cfg_clk>; + clock-names = "core-clk", "cfgr-clk"; + + dma-channels = <4>; + snps,dma-masters = <2>; + snps,data-width = <3>; + snps,block-size = <4096 4096 4096 4096>; + snps,priority = <0 1 2 3>; + snps,axi-max-burst-len = <16>; + }; }; memory@80000000 { -- 2.7.4