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arm64: dts: imx8mq: specify dma-ranges 

The peripheral bus on the i.MX8MQ is still limited to 32bits, so
we need to declare the usable range for device DMA operations, as
the DRAM will extend across the 32bit boundary if more than 3GB
are installed.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Lucas Stach 2019-02-08 19:53:49 +01:00 committed by Shawn Guo
parent b3f6a5f216
commit ca04fed470
1 changed files with 1 additions and 0 deletions
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arch/arm64/boot/dts/freescale/imx8mq.dtsi
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@ -147,6 +147,7 @@ soc@0 {
#address-cells = <1>;
#size-cells = <1>;
ranges = <0x0 0x0 0x0 0x3e000000>;
dma-ranges = <0x40000000 0x0 0x40000000 0xc0000000>;
bus@30000000 { /* AIPS1 */
compatible = "fsl,imx8mq-aips-bus", "simple-bus";