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Subject: Re: dma_mask limited to 32-bits with OF platform device
To:     Christoph Hellwig <hch@lst.de>, Robin Murphy <robin.murphy@arm.com>
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From:   Roger Quadros <rogerq@ti.com>
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Date:   Tue, 18 Feb 2020 10:28:26 +0200
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Chrishtoph,

The branch works fine for SATA on DRA7 with CONFIG_LPAE once I
have the below DT fix.

Do you intend to send these fixes to -stable?

------------------------- arch/arm/boot/dts/dra7.dtsi -------------------------
index d78b684e7fca..853ecf3cfb37 100644
@@ -645,6 +645,8 @@
  		sata: sata@4a141100 {
  			compatible = "snps,dwc-ahci";
  			reg = <0x4a140000 0x1100>, <0x4a141100 0x7>;
+			#size-cells = <2>;
+			dma-ranges = <0x00000000 0x00000000 0x1 0x00000000>;
  			interrupts = <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>;
  			phys = <&sata_phy>;
  			phy-names = "sata-phy";


cheers,
-roger

On 17/02/2020 15:21, Christoph Hellwig wrote:
> Roger,
> 
> can you try the branch below and check if that helps?
> 
>      git://git.infradead.org/users/hch/misc.git arm-dma-bus-limit
> 
> Gitweb:
> 
>      http://git.infradead.org/users/hch/misc.git/shortlog/refs/heads/arm-dma-bus-limit
> 

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