Thread (5 messages) 5 messages, 3 authors, 2026-02-03
STALE155d

[PATCH v3 2/2] arm64: dts: imx95-evk: update the dma-channel-mask property

From: Joy Zou <hidden>
Date: 2026-01-30 09:37:38
Also in: imx, linux-devicetree, lkml
Subsystem: arm/freescale imx / mxc arm architecture, the rest · Maintainers: Frank Li, Sascha Hauer, Linus Torvalds

Have reserved eDMA2 channels 0 and 1 for V2X fast hash in imx95.dtsi.
So update the dma-channel-mask from 0xc0000000 to 0xc0000003 to mark
channels 0, 1, 30, and 31 as reserved.

Signed-off-by: Joy Zou <redacted>
---
 arch/arm64/boot/dts/freescale/imx95-19x19-evk-sof.dts | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/boot/dts/freescale/imx95-19x19-evk-sof.dts b/arch/arm64/boot/dts/freescale/imx95-19x19-evk-sof.dts
index 808a9fe3ebb2b9557be9e428583e76c32517de08..264703f6eef64813d64fe07713cf92fd02fa0778 100644
--- a/arch/arm64/boot/dts/freescale/imx95-19x19-evk-sof.dts
+++ b/arch/arm64/boot/dts/freescale/imx95-19x19-evk-sof.dts
@@ -55,8 +55,11 @@ sound-wm8962 {
 };
 
 &edma2 {
-	/* channels 30 and 31 reserved for FW usage */
-	dma-channel-mask = <0xc0000000>, <0x0>;
+	/*
+	 * channels 0 and 1 reserved for V2X fast hash,
+	 * channels 30 and 31 reserved for FW usage
+	 */
+	dma-channel-mask = <0xc0000003>, <0x0>;
 };
 
 &sai3 {
-- 
2.37.1

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