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

Lucas Stach l.stach at pengutronix.de
Tue May 4 01:20:52 PDT 2021


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 at 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 at 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




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