RE: [PATCH 2/2] PCI: dwc: Add support to disable equalization phase 2 and 3

2019-09-12 Thread Pankaj Dubey
> From: Andrew Murray > > On Tue, Sep 10, 2019 at 09:51:41PM +0530, Pankaj Dubey wrote: > > On Tue, 10 Sep 2019 at 19:59, Andrew Murray > wrote: > > > > > > On Tue, Sep 10, 2019 at 05:55:02PM +0530, Pankaj Dubey wrote: > > > > From: Anvesh Salveru > > > > > > > > In some platforms, PCIe PHY

Re: [PATCH 2/2] PCI: dwc: Add support to disable equalization phase 2 and 3

2019-09-11 Thread Andrew Murray
On Tue, Sep 10, 2019 at 09:51:41PM +0530, Pankaj Dubey wrote: > On Tue, 10 Sep 2019 at 19:59, Andrew Murray wrote: > > > > On Tue, Sep 10, 2019 at 05:55:02PM +0530, Pankaj Dubey wrote: > > > From: Anvesh Salveru > > > > > > In some platforms, PCIe PHY may have issues which will prevent linkup > >

Re: [PATCH 2/2] PCI: dwc: Add support to disable equalization phase 2 and 3

2019-09-10 Thread Pankaj Dubey
On Tue, 10 Sep 2019 at 19:59, Andrew Murray wrote: > > On Tue, Sep 10, 2019 at 05:55:02PM +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 2/2] PCI: dwc: Add support to disable equalization phase 2 and 3

2019-09-10 Thread Andrew Murray
On Tue, Sep 10, 2019 at 05:55:02PM +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. > > Designware controller gives flexibility

[PATCH 2/2] PCI: dwc: Add support to disable equalization phase 2 and 3

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 gives flexibility to disable GEN3 equalization completely or only phase 2 and 3. Platform dri