RE: [PATCH 1/2] PCI: dwc: Add support to disable GEN3 equalization

2019-09-13 Thread Pankaj Dubey
..@google.com; Anvesh Salveru > > Subject: RE: [PATCH 1/2] PCI: dwc: Add support to disable GEN3 equalization > > Hi, > > On Tue, Sep 10, 2019 at 13:25:1, Pankaj Dubey > wrote: > > > From: Anvesh Salveru > > > > In some platforms, PCIe PHY may have

RE: [PATCH 1/2] PCI: dwc: Add support to disable GEN3 equalization

2019-09-12 Thread Gustavo Pimentel
Hi, On Tue, Sep 10, 2019 at 13:25:1, Pankaj Dubey wrote: > From: Anvesh Salveru > > In some platforms, PCIe PHY may have issues which will prevent linkup > to happen in GEN3 or high speed. In case equalization fails, link will > fallback to GEN1. > > Designware controller has support for dis

Re: [PATCH 1/2] PCI: dwc: Add support to disable GEN3 equalization

2019-09-12 Thread Andrew Murray
On Thu, Sep 12, 2019 at 05:09:41PM +0530, Pankaj Dubey wrote: > > > > From: Andrew Murray > > > > On Tue, Sep 10, 2019 at 09:46:28PM +0530, Pankaj Dubey wrote: > > > On Tue, 10 Sep 2019 at 19:56, Andrew Murray > > wrote: > > > > > > > > On Tue, Sep 10, 2019 at 05:55:01PM +0530, Pankaj Dubey wr

RE: [PATCH 1/2] PCI: dwc: Add support to disable GEN3 equalization

2019-09-12 Thread Pankaj Dubey
> From: Andrew Murray > > On Tue, Sep 10, 2019 at 09:46:28PM +0530, Pankaj Dubey wrote: > > On Tue, 10 Sep 2019 at 19:56, Andrew Murray > wrote: > > > > > > On Tue, Sep 10, 2019 at 05:55:01PM +0530, Pankaj Dubey wrote: > > > > From: Anvesh Salveru > > > > > > > > In some platforms, PCIe PHY

Re: [PATCH 1/2] PCI: dwc: Add support to disable GEN3 equalization

2019-09-11 Thread Andrew Murray
On Tue, Sep 10, 2019 at 09:46:28PM +0530, Pankaj Dubey wrote: > On Tue, 10 Sep 2019 at 19:56, Andrew Murray wrote: > > > > On Tue, Sep 10, 2019 at 05:55:01PM +0530, Pankaj Dubey wrote: > > > From: Anvesh Salveru > > > > > > In some platforms, PCIe PHY may have issues which will prevent linkup > >

Re: [PATCH 1/2] PCI: dwc: Add support to disable GEN3 equalization

2019-09-10 Thread Pankaj Dubey
On Tue, 10 Sep 2019 at 19:56, Andrew Murray wrote: > > On Tue, Sep 10, 2019 at 05:55:01PM +0530, Pankaj Dubey wrote: > > From: Anvesh Salveru > > > > In some platforms, PCIe PHY may have issues which will prevent linkup > > to happen in GEN3 or high speed. In case equalization fails, link will >

Re: [PATCH 1/2] PCI: dwc: Add support to disable GEN3 equalization

2019-09-10 Thread Andrew Murray
On Tue, Sep 10, 2019 at 05:55:01PM +0530, Pankaj Dubey wrote: > From: Anvesh Salveru > > In some platforms, PCIe PHY may have issues which will prevent linkup > to happen in GEN3 or high speed. In case equalization fails, link will > fallback to GEN1. When you refer to "high speed", do you mean

[PATCH 1/2] PCI: dwc: Add support to disable GEN3 equalization

2019-09-10 Thread Pankaj Dubey
From: Anvesh Salveru In some platforms, PCIe PHY may have issues which will prevent linkup to happen in GEN3 or high speed. In case equalization fails, link will fallback to GEN1. Designware controller has support for disabling GEN3 equalization if required. This patch enables the designware dri