From 5dffcba05559071c5953db95fed883e33e8f9335 Mon Sep 17 00:00:00 2001 From: Kedareswara rao Appana Date: Fri, 9 Sep 2016 12:36:01 +0530 Subject: [PATCH] dma: zynqmp: Add description for LPDDMA channel usage LPDDMA default allows only secured access. inorder to enable these dma channels, one should ensure that it allows non secure access. This patch updates the same. Reported-by: Sai Pavan Boddu Signed-off-by: Kedareswara rao Appana Signed-off-by: Michal Simek --- arch/arm/dts/zynqmp.dtsi | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/arch/arm/dts/zynqmp.dtsi b/arch/arm/dts/zynqmp.dtsi index a31aaa70438..4540a8a3757 100644 --- a/arch/arm/dts/zynqmp.dtsi +++ b/arch/arm/dts/zynqmp.dtsi @@ -421,7 +421,10 @@ power-domains = <&pd_gpu>; }; - /* ADMA */ + /* LPDDMA default allows only secured access. inorder to enable + * These dma channels, Users should ensure that these dma + * Channels are allowed for non secure access. + */ lpd_dma_chan1: dma@ffa80000 { status = "disabled"; compatible = "xlnx,zynqmp-dma-1.0"; -- 2.47.3