arm64: dts: imx8mn: specify dma-ranges

DMA addressing capabilities on i.MX8MN 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>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm64/boot/dts/freescale/imx8mn.dtsi b/arch/arm64/boot/dts/freescale/imx8mn.dtsi
index e961acd237a873425c1a092f2b751299d5ed3ae3..d4231e061403f18e5afd3751230397bc72f34aa9 100644 (file)
--- a/arch/arm64/boot/dts/freescale/imx8mn.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mn.dtsi
@@ -245,6 +245,7 @@
                #address-cells = <1>;
                #size-cells = <1>;
                ranges = <0x0 0x0 0x0 0x3e000000>;
+               dma-ranges = <0x40000000 0x0 0x40000000 0xc0000000>;
                nvmem-cells = <&imx8mn_uid>;
                nvmem-cell-names = "soc_unique_id";