arm64: dts: imx8mm: specify dma-ranges

DMA addressing capabilities on i.MX8MM are limited by the interconnect,
same as on i.MX8MQ. Add dma-ranges to the the peripheral bus to let
the kernel know about this.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Tested-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm64/boot/dts/freescale/imx8mm.dtsi b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
index 64aa38f..e7648c3 100644 (file)
--- a/arch/arm64/boot/dts/freescale/imx8mm.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
@@ -261,6 +261,7 @@
                #address-cells = <1>;
                #size-cells = <1>;
                ranges = <0x0 0x0 0x0 0x3e000000>;
+               dma-ranges = <0x40000000 0x0 0x40000000 0xc0000000>;
                nvmem-cells = <&imx8mm_uid>;
                nvmem-cell-names = "soc_unique_id";