From mboxrd@z Thu Jan 1 00:00:00 1970 From: m-karicheri2@ti.com (Murali Karicheri) Date: Fri, 17 Jul 2015 09:01:50 -0400 Subject: [PATCH v1 1/2] ARM: keystone: dts: fix dt bindings for PCIe In-Reply-To: <55A83388.5040306@oracle.com> References: <1437083492-28208-1-git-send-email-m-karicheri2@ti.com> <55A83388.5040306@oracle.com> Message-ID: <55A8FCBE.3090703@ti.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 07/16/2015 06:43 PM, santosh.shilimkar at oracle.com wrote: > 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 >> --- >> - 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 > > Thanks Santosh. regards, -- Murali Karicheri Linux Kernel, Keystone