From 248948fbbd048d1ea75f9bb18979a6f33c4dcd5b Mon Sep 17 00:00:00 2001 From: Peter Ujfalusi Date: Mon, 7 Mar 2016 17:17:29 +0200 Subject: [PATCH] ARM: dts: dra7: Enable eDMA DRA7 family has eDMA available along with the sDMA and in some cases it is better suited for servicing peripherals. Add the needed nodes for eDMA to be usable: edma-tpcc, edma-tptc0/1 and the edma-xbar. Signed-off-by: Peter Ujfalusi Signed-off-by: Tony Lindgren --- arch/arm/boot/dts/dra7.dtsi | 48 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi index 035f9be26337..1d54d311c46a 100644 --- a/arch/arm/boot/dts/dra7.dtsi +++ b/arch/arm/boot/dts/dra7.dtsi @@ -170,6 +170,15 @@ ti,dma-safe-map = <0>; dma-masters = <&sdma>; }; + + edma_xbar: dma-router@c78 { + compatible = "ti,dra7-dma-crossbar"; + reg = <0xc78 0x7c>; + #dma-cells = <2>; + dma-requests = <204>; + ti,dma-safe-map = <0>; + dma-masters = <&edma>; + }; }; cm_core_aon: cm_core_aon@5000 { @@ -324,6 +333,45 @@ dma-requests = <127>; }; + edma: edma@43300000 { + compatible = "ti,edma3-tpcc"; + ti,hwmods = "tpcc"; + reg = <0x43300000 0x100000>; + reg-names = "edma3_cc"; + interrupts = , + , + ; + interrupt-names = "edma3_ccint", "emda3_mperr", + "edma3_ccerrint"; + dma-requests = <64>; + #dma-cells = <2>; + + ti,tptcs = <&edma_tptc0 7>, <&edma_tptc1 0>; + + /* + * memcpy is disabled, can be enabled with: + * ti,edma-memcpy-channels = <20 21>; + * for example. Note that these channels need to be + * masked in the xbar as well. + */ + }; + + edma_tptc0: tptc@43400000 { + compatible = "ti,edma3-tptc"; + ti,hwmods = "tptc0"; + reg = <0x43400000 0x100000>; + interrupts = ; + interrupt-names = "edma3_tcerrint"; + }; + + edma_tptc1: tptc@43500000 { + compatible = "ti,edma3-tptc"; + ti,hwmods = "tptc1"; + reg = <0x43500000 0x100000>; + interrupts = ; + interrupt-names = "edma3_tcerrint"; + }; + gpio1: gpio@4ae10000 { compatible = "ti,omap4-gpio"; reg = <0x4ae10000 0x200>; -- 2.11.0