From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rob Herring Subject: Re: [PATCH V5 07/16] dt-bindings: PCI: designware: Add binding for CDM register check Date: Fri, 26 Apr 2019 09:32:47 -0500 Message-ID: <20190426143247.GA25107@bogus> References: <20190424052004.6270-1-vidyas@nvidia.com> <20190424052004.6270-8-vidyas@nvidia.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <20190424052004.6270-8-vidyas@nvidia.com> Sender: linux-kernel-owner@vger.kernel.org To: Vidya Sagar Cc: lorenzo.pieralisi@arm.com, bhelgaas@google.com, mark.rutland@arm.com, thierry.reding@gmail.com, jonathanh@nvidia.com, kishon@ti.com, catalin.marinas@arm.com, will.deacon@arm.com, jingoohan1@gmail.com, gustavo.pimentel@synopsys.com, mperttunen@nvidia.com, linux-pci@vger.kernel.org, devicetree@vger.kernel.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kthota@nvidia.com, mmaddireddy@nvidia.com, sagar.tv@gmail.com List-Id: devicetree@vger.kernel.org On Wed, Apr 24, 2019 at 10:49:55AM +0530, Vidya Sagar wrote: > Add support to enable CDM (Configuration Dependent Module) registers check > for any data corruption. CDM registers include standard PCIe configuration > space registers, Port Logic registers and iATU and DMA registers. > Refer Section S.4 of Synopsys DesignWare Cores PCI Express Controller Databook > Version 4.90a > > Signed-off-by: Vidya Sagar > --- > Changes since [v4]: > * None > > Changes since [v3]: > * None > > Changes since [v2]: > * Changed flag name from 'cdm-check' to 'enable-cdm-check' > * Added info about Port Logic and DMA registers being part of CDM > > Changes since [v1]: > * This is a new patch in v2 series > > Documentation/devicetree/bindings/pci/designware-pcie.txt | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/Documentation/devicetree/bindings/pci/designware-pcie.txt b/Documentation/devicetree/bindings/pci/designware-pcie.txt > index 5561a1c060d0..85b872c42a9f 100644 > --- a/Documentation/devicetree/bindings/pci/designware-pcie.txt > +++ b/Documentation/devicetree/bindings/pci/designware-pcie.txt > @@ -34,6 +34,11 @@ Optional properties: > - clock-names: Must include the following entries: > - "pcie" > - "pcie_bus" > +- enable-cdm-check: This is a boolean property and if present enables This needs a vendor prefix. > + automatic checking of CDM (Configuration Dependent Module) registers > + for data corruption. CDM registers include standard PCIe configuration > + space registers, Port Logic registers, DMA and iATU (internal Address > + Translation Unit) registers. > RC mode: > - num-viewport: number of view ports configured in hardware. If a platform > does not specify it, the driver assumes 2. > -- > 2.17.1 >