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

santosh.shilimkar at oracle.com santosh.shilimkar at oracle.com
Thu Jul 16 15:43:20 PDT 2015

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 at ti.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.


More information about the linux-arm-kernel mailing list