[PATCH v4 2/3] arm64: dts: imx95: Reserve eDMA channels 0-1 for V2X
From: Joy Zou <hidden>
Date: 2026-02-11 09:27:54
Also in:
imx, linux-devicetree, lkml
Subsystem:
arm/freescale imx / mxc arm architecture, the rest · Maintainers:
Frank Li, Sascha Hauer, Linus Torvalds
Reserve eDMA channels 0 and 1 on the AXI eDMA controller for exclusive use by V2X (Vehicle-to-Everything) fast hash operations. Reviewed-by: Laurentiu Mihalcea <redacted> Tested-by: Laurentiu Mihalcea <redacted> Signed-off-by: Joy Zou <redacted> --- arch/arm64/boot/dts/freescale/imx95.dtsi | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/arch/arm64/boot/dts/freescale/imx95.dtsi b/arch/arm64/boot/dts/freescale/imx95.dtsi
index 55e2da094c889fc7c1096d0e36f31ae118d2a982..9ac82da2ff440e08ae8378d7ff830a568d50a354 100644
--- a/arch/arm64/boot/dts/freescale/imx95.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx95.dtsi@@ -631,6 +631,8 @@ edma2: dma-controller@42000000 { reg = <0x42000000 0x210000>; #dma-cells = <3>; dma-channels = <64>; + /* channels 0 and 1 reserved for V2X fast hash */ + dma-channel-mask = <0x3>; interrupts = <GIC_SPI 128 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 128 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 129 IRQ_TYPE_LEVEL_HIGH>,
--
2.37.1