linux-kernel - [PATCH v2 19/22] arm64: dts: ls104x: add missing dma ranges property

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Message-Id: <20180926132247.10971-20-laurentiu.tudor@nxp.com>
Date:   Wed, 26 Sep 2018 16:22:44 +0300
From:   laurentiu.tudor@....com
To:     devicetree@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Cc:     roy.pledge@....com, madalin.bucur@....com, davem@...emloft.net,
        shawnguo@...nel.org, leoyang.li@....com, robin.murphy@....com,
        bharat.bhushan@....com, Laurentiu Tudor <laurentiu.tudor@....com>
Subject: [PATCH v2 19/22] arm64: dts: ls104x: add missing dma ranges property

From: Laurentiu Tudor <laurentiu.tudor@....com>

These chips have a 48-bit address size so make sure that the dma-ranges
reflects this. Otherwise the linux kernel's dma sub-system will set
the default dma masks to full 64-bit, badly breaking dmas.

Signed-off-by: Laurentiu Tudor <laurentiu.tudor@....com>
---
 arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi | 1 +
 arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi | 1 +
 2 files changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi
index 1f9b385007a8..0e8fc8f29997 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi
@@ -214,6 +214,7 @@
 		#address-cells = <2>;
 		#size-cells = <2>;
 		ranges;
+		dma-ranges = <0x0 0x0 0x0 0x0 0x10000 0x00000000>;
 
 		clockgen: clocking@...1000 {
 			compatible = "fsl,ls1043a-clockgen";
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi
index 22bf3975492a..29b07bdd4207 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi
@@ -187,6 +187,7 @@
 		#address-cells = <2>;
 		#size-cells = <2>;
 		ranges;
+		dma-ranges = <0x0 0x0 0x0 0x0 0x10000 0x00000000>;
 
 		ddr: memory-controller@...0000 {
 			compatible = "fsl,qoriq-memory-controller";
-- 
2.17.1