linux-kernel - Re: [PATCH v1 1/2] ARM: keystone: dts: fix dt bindings for PCIe

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Date:	Thu, 16 Jul 2015 15:43:20 -0700
From:	"santosh.shilimkar@...cle.com" <santosh.shilimkar@...cle.com>
To:	Murali Karicheri <m-karicheri2@...com>, robh+dt@...nel.org,
	pawel.moll@....com, mark.rutland@....com,
	ijc+devicetree@...lion.org.uk, galak@...eaurora.org,
	linux@....linux.org.uk, devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	ssantosh@...nel.org
Subject: Re: [PATCH v1 1/2] ARM: keystone: dts: fix dt bindings for PCIe

On 7/16/15 2:51 PM, Murali Karicheri wrote:
> Currently PCIe DT bindings are broken. PCIe driver can't function
> without having a SerDes driver that provide the phy configuration.
> On K2E EVM, this causes problem since the EVM has Marvell SATA
> controller present and with default values in the SerDes register,
> it seems to pass the PCIe link check, but causes issues since
> the configuration is not correct. The manifestation is that when
> EVM is booted with NFS rootfs, the boot hangs. We shouldn't enable
> PCIe on this EVM since to work, SerDes driver has to be present as
> well. So by default, the PCIe DT binding should be disabled in SoC
> specific DTS. It can be enabled in the board specific DTS when the
> SerDes device driver is also present.
>
> So fix the status of PCIe DT bindings in the SoC specific DTS to
> "disabled". To enable PCIe, the status should be set to "ok" in
> the EVM DTS file when SerDes driver support becomes available in
> the upstream tree.
>
> Signed-off-by: Murali Karicheri <m-karicheri2@...com>
> ---
>   - updated commit description to make it clear that it is fix
>     to be applied to v4.2-rc.

Just sent pull request with both of these patches from the series.

Regards,
Santosh
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