[PATCH v4 2/3] arm64: dts: imx95: Reserve eDMA channels 0-1 for V2X
From: Joy Zou
Date: Wed Feb 11 2026 - 04:28:47 EST
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 <laurentiu.mihalcea@xxxxxxx>
Tested-by: Laurentiu Mihalcea <laurentiu.mihalcea@xxxxxxx>
Signed-off-by: Joy Zou <joy.zou@xxxxxxx>
---
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