linux-kernel - Re: [PATCH v6 2/3] arm64: dts: ls1028a: Add PCIe controller DT nodes

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Message-ID: <20200224084307.GD27688@dragon>
Date:   Mon, 24 Feb 2020 16:43:10 +0800
From:   Shawn Guo <shawnguo@...nel.org>
To:     Michael Walle <michael@...le.cc>
Cc:     xiaowei.bao@....com, Zhiqiang.Hou@....com, bhelgaas@...gle.com,
        devicetree@...r.kernel.org, leoyang.li@....com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-pci@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        lorenzo.pieralisi@....com, mark.rutland@....com,
        minghuan.Lian@....com, mingkai.hu@....com, robh+dt@...nel.org,
        roy.zang@....com
Subject: Re: [PATCH v6 2/3] arm64: dts: ls1028a: Add PCIe controller DT nodes

On Mon, Feb 24, 2020 at 09:11:05AM +0100, Michael Walle wrote:
> Hi Xiaowei, Hi Shawn,
> 
> > LS1028a implements 2 PCIe 3.0 controllers.
> 
> Patch 1/3 and 3/3 are in Linus' tree but nobody seems to care about this patch
> anymore :(
> 
> This doesn't work well with the IOMMU, because the iommu-map property is
> missing. The bootloader needs the &smmu phandle to fixup the entry. See
> below.
> 
> Shawn, will you add this patch to your tree once its fixed, considering it
> just adds the device tree node for the LS1028A?

The patch/thread is a bit aged.  You may want to send an updated patch
for discussion.

Shawn

> 
> > 
> > Signed-off-by: Xiaowei Bao <xiaowei.bao@....com>
> > Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@....com>