linux-kernel - [PATCH v2 4/9] arm64: dts: ls1046a: add missing dma ranges property

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Message-Id: <20220915233432.31660-5-leoyang.li@nxp.com>
Date:   Thu, 15 Sep 2022 18:34:27 -0500
From:   Li Yang <leoyang.li@....com>
To:     shawnguo@...nel.org, devicetree@...r.kernel.org
Cc:     robh+dt@...nel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org,
        Laurentiu Tudor <laurentiu.tudor@....com>,
        Li Yang <leoyang.li@....com>
Subject: [PATCH v2 4/9] arm64: dts: ls1046a: 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>
Signed-off-by: Li Yang <leoyang.li@....com>
---
 arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi
index a0619a45f3b8..27033c558e3e 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi
@@ -272,6 +272,7 @@ soc: soc {
 		#address-cells = <2>;
 		#size-cells = <2>;
 		ranges;
+		dma-ranges = <0x0 0x0 0x0 0x0 0x10000 0x00000000>;
 
 		ddr: memory-controller@...0000 {
 			compatible = "fsl,qoriq-memory-controller";
-- 
2.37.1