arm64: dts: imx95: Reserve eDMA channels 0-1 for V2X

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@nxp.com>
Tested-by: Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com>
Signed-off-by: Joy Zou <joy.zou@nxp.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>

diff --git a/arch/arm64/boot/dts/freescale/imx95.dtsi b/arch/arm64/boot/dts/freescale/imx95.dtsi
index 0c55861d673c20d9e7cb58bc4e249b56cd6923ed..5f61866e9df9e82301c624e6074efe1c00137912 100644 (file)
--- a/arch/arm64/boot/dts/freescale/imx95.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx95.dtsi
@@ -636,6 +636,8 @@
                                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>,