Messages in this thread | | | From | Peng Ma <> | Subject | RE: [EXT] [PATCH 2/2] arm64: dts: ls1028a: add "fsl,vf610-edma" compatible | Date | Sat, 7 Mar 2020 02:09:32 +0000 |
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>-----Original Message----- >From: Michael Walle <michael@walle.cc> >Sent: 2020年3月7日 4:54 >To: dmaengine@vger.kernel.org; devicetree@vger.kernel.org; >linux-kernel@vger.kernel.org; linux-arm-kernel@lists.infradead.org >Cc: Vinod Koul <vkoul@kernel.org>; Rob Herring <robh+dt@kernel.org>; Mark >Rutland <mark.rutland@arm.com>; Shawn Guo <shawnguo@kernel.org>; Leo Li ><leoyang.li@nxp.com>; Peng Ma <peng.ma@nxp.com>; Michael Walle ><michael@walle.cc> >Subject: [EXT] [PATCH 2/2] arm64: dts: ls1028a: add "fsl,vf610-edma" >compatible > >Caution: EXT Email > >The bootloader does the IOMMU fixup and dynamically adds the "iommus" >property to devices according to its compatible string. In case of the eDMA >controller this property is missing. Add it. After that the IOMMU will work with >the eDMA core. > >Signed-off-by: Michael Walle <michael@walle.cc> >--- > arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > >diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi >b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi >index b152fa90cf5c..aa467bff2209 100644 >--- a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi >+++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi >@@ -447,7 +447,7 @@ > > edma0: dma-controller@22c0000 { > #dma-cells = <2>; >- compatible = "fsl,ls1028a-edma"; >+ compatible = "fsl,ls1028a-edma", >+ "fsl,vf610-edma"; Hi Michael,
You should change it on bootloader instead of kernel, Some Reg of LS1028a is different from others, So we used compatible "fsl,ls1028a-edm" to distinguish " fsl,vf610-edma".
Thanks, Peng > reg = <0x0 0x22c0000 0x0 0x10000>, > <0x0 0x22d0000 0x0 0x10000>, > <0x0 0x22e0000 0x0 0x10000>; >-- >2.20.1
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