[PATCH 2/2] arm64: dts: imx8mn: specify dma-ranges

Lucas Stach
2021-05-04T08:23:13Z

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>
---
arch/arm64/boot/dts/freescale/imx8mn.dtsi | 1 +
1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mn.dtsi b/arch/arm64/boot/dts/freescale/imx8mn.dtsi
index 16ea50089567..256e1dfb5db3 100644
--- a/arch/arm64/boot/dts/freescale/imx8mn.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mn.dtsi
@@ -245,6 +245,7 @@ soc@0 {
#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";

--
2.29.2