From: Athani Nadeem Ladkhan <nadeem@cadence.com>
To: Athani Nadeem Ladkhan <nadeem@cadence.com>,
Tom Joseph <tjoseph@cadence.com>,
"lorenzo.pieralisi@arm.com" <lorenzo.pieralisi@arm.com>,
"robh@kernel.org" <robh@kernel.org>,
"bhelgaas@google.com" <bhelgaas@google.com>,
"kishon@ti.com" <kishon@ti.com>,
"linux-omap@vger.kernel.org" <linux-omap@vger.kernel.org>,
"linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Cc: Milind Parab <mparab@cadence.com>,
Swapnil Kashinath Jakhade <sjakhade@cadence.com>,
Parshuram Raju Thombare <pthombar@cadence.com>
Subject: RE: [PATCH v7 0/2] PCI: cadence: Retrain Link to work around Gen2
Date: Thu, 7 Jan 2021 19:54:42 +0000 [thread overview]
Message-ID: <SN2PR07MB25579DFA16FFFEFB7B6F61B1D8AF0@SN2PR07MB2557.namprd07.prod.outlook.com> (raw)
In-Reply-To: <20201230120515.2348-1-nadeem@cadence.com>
Hello,
Requesting to provide review comments.
Thanks & Regards,
Nadeem Athani
> -----Original Message-----
> From: Nadeem Athani <nadeem@cadence.com>
> Sent: Wednesday, December 30, 2020 5:35 PM
> To: Tom Joseph <tjoseph@cadence.com>; lorenzo.pieralisi@arm.com;
> robh@kernel.org; bhelgaas@google.com; kishon@ti.com; linux-
> omap@vger.kernel.org; linux-pci@vger.kernel.org; linux-arm-
> kernel@lists.infradead.org; linux-kernel@vger.kernel.org
> Cc: Athani Nadeem Ladkhan <nadeem@cadence.com>; Milind Parab
> <mparab@cadence.com>; Swapnil Kashinath Jakhade
> <sjakhade@cadence.com>; Parshuram Raju Thombare
> <pthombar@cadence.com>
> Subject: [PATCH v7 0/2] PCI: cadence: Retrain Link to work around Gen2
>
> Cadence controller will not initiate autonomous speed change if strapped as
> Gen2. The Retrain Link bit is set as quirk to enable this speed change.
> Adding a quirk flag for defective IP. In future IP revisions this will not be
> applicable.
>
> Version history:
> Changes in v7:
> - Changing the commit title of patch 1 in this series.
> - Added a return value for function cdns_pcie_retrain().
> Changes in v6:
> - Move the position of function cdns_pcie_host_wait_for_link to remove
> compilation error. No changes in code. Separate patch for this.
> Changes in v5:
> - Remove the compatible string based setting of quirk flag.
> - Removed additional Link Up Check
> - Removed quirk from pcie-cadence-plat.c and added in pci-j721e.c Changes
> in v4:
> - Added a quirk flag based on a new compatible string.
> - Change of api for link up: cdns_pcie_host_wait_for_link().
> Changes in v3:
> - To set retrain link bit,checking device capability & link status.
> - 32bit read in place of 8bit.
> - Minor correction in patch comment.
> - Change in variable & macro name.
> Changes in v2:
> - 16bit read in place of 8bit.
>
> Nadeem Athani (2):
> PCI: cadence: Shifting of a function to support new code.
> PCI: cadence: Retrain Link to work around Gen2 training defect.
>
> drivers/pci/controller/cadence/pci-j721e.c | 3 +
> drivers/pci/controller/cadence/pcie-cadence-host.c | 70 ++++++++++++++++-
> -----
> drivers/pci/controller/cadence/pcie-cadence.h | 11 +++-
> 3 files changed, 65 insertions(+), 19 deletions(-)
>
> --
> 2.15.0
next prev parent reply other threads:[~2021-01-07 19:56 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-30 12:05 [PATCH v7 0/2] PCI: cadence: Retrain Link to work around Gen2 Nadeem Athani
2020-12-30 12:05 ` [PATCH v7 1/2] PCI: cadence: Shifting of a function to support new code Nadeem Athani
2020-12-30 12:05 ` [PATCH v7 2/2] PCI: cadence: Retrain Link to work around Gen2 training defect Nadeem Athani
2021-02-08 18:31 ` Lorenzo Pieralisi
2021-01-07 19:54 ` Athani Nadeem Ladkhan [this message]
2021-01-12 7:15 ` [PATCH v7 0/2] PCI: cadence: Retrain Link to work around Gen2 Kishon Vijay Abraham I
2021-01-22 5:57 ` Athani Nadeem Ladkhan
2021-02-08 2:00 ` Kishon Vijay Abraham I
2021-02-02 9:27 ` Tom Joseph
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