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From: Vidya Sagar <vidyas@nvidia.com>
To: <lorenzo.pieralisi@arm.com>, <bhelgaas@google.com>,
	<robh+dt@kernel.org>,  <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>
Cc: devicetree@vger.kernel.org, mmaddireddy@nvidia.com,
	kthota@nvidia.com, linux-pci@vger.kernel.org,
	linux-kernel@vger.kernel.org, mperttunen@nvidia.com,
	linux-tegra@vger.kernel.org, vidyas@nvidia.com,
	linux-arm-kernel@lists.infradead.org, sagar.tv@gmail.com
Subject: [PATCH V7 06/15] dt-bindings: PCI: designware: Add binding for CDM register check
Date: Fri, 17 May 2019 18:08:37 +0530
Message-ID: <20190517123846.3708-7-vidyas@nvidia.com> (raw)
In-Reply-To: <20190517123846.3708-1-vidyas@nvidia.com>

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 <vidyas@nvidia.com>
---
Changes since [v6]:
* Changed "enable-cdm-check" to "snps,enable-cdm-check"

Changes since [v5]:
* None

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..3fba04da6a59 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"
+- snps,enable-cdm-check: This is a boolean property and if present enables
+   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


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  parent reply index

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-17 12:38 [PATCH V7 00/15] Add Tegra194 PCIe support Vidya Sagar
2019-05-17 12:38 ` [PATCH V7 01/15] PCI: Add #defines for some of PCIe spec r4.0 features Vidya Sagar
2019-05-17 12:38 ` [PATCH V7 02/15] PCI: Disable MSI for Tegra194 root port Vidya Sagar
2019-05-21 10:27   ` Thierry Reding
2019-05-21 16:47     ` Vidya Sagar
2019-05-21 19:34       ` Vidya Sagar
2019-05-21 19:36       ` Bjorn Helgaas
2019-05-22  8:07         ` Vidya Sagar
2019-05-17 12:38 ` [PATCH V7 03/15] PCI: dwc: Perform dbi regs write lock towards the end Vidya Sagar
2019-05-21 10:29   ` Thierry Reding
2019-05-17 12:38 ` [PATCH V7 04/15] PCI: dwc: Move config space capability search API Vidya Sagar
2019-05-21 10:29   ` Thierry Reding
2019-05-21 21:17   ` Bjorn Helgaas
2019-05-22  8:56     ` Vidya Sagar
2019-05-22 14:02       ` Bjorn Helgaas
2019-05-24 14:46         ` Vidya Sagar
2019-05-17 12:38 ` [PATCH V7 05/15] PCI: dwc: Add ext " Vidya Sagar
2019-05-21 10:36   ` Thierry Reding
2019-05-21 17:14     ` Vidya Sagar
2019-05-17 12:38 ` Vidya Sagar [this message]
2019-05-21 10:37   ` [PATCH V7 06/15] dt-bindings: PCI: designware: Add binding for CDM register check Thierry Reding
2019-05-24 20:23   ` Rob Herring
2019-05-17 12:38 ` [PATCH V7 07/15] PCI: dwc: Add support to enable " Vidya Sagar
2019-05-21 10:38   ` Thierry Reding
2019-05-17 12:38 ` [PATCH V7 08/15] dt-bindings: Add PCIe supports-clkreq property Vidya Sagar
2019-05-21 10:39   ` Thierry Reding
2019-05-17 12:38 ` [PATCH V7 09/15] dt-bindings: PCI: tegra: Add device tree support for Tegra194 Vidya Sagar
2019-05-21 10:51   ` Thierry Reding
2019-05-21 18:00     ` Vidya Sagar
2019-05-24 20:26   ` Rob Herring
2019-05-17 12:38 ` [PATCH V7 10/15] dt-bindings: PHY: P2U: Add Tegra194 P2U block Vidya Sagar
2019-05-21 10:52   ` Thierry Reding
2019-05-17 12:38 ` [PATCH V7 11/15] arm64: tegra: Add P2U and PCIe controller nodes to Tegra194 DT Vidya Sagar
2019-05-17 13:03   ` Ard Biesheuvel
2019-05-17 17:38     ` Vidya Sagar
2019-05-17 12:38 ` [PATCH V7 12/15] arm64: tegra: Enable PCIe slots in P2972-0000 board Vidya Sagar
2019-05-21 10:54   ` Thierry Reding
2019-05-21 18:17     ` Vidya Sagar
2019-05-22 13:48       ` Thierry Reding
2019-05-17 12:38 ` [PATCH V7 13/15] phy: tegra: Add PCIe PIPE2UPHY support Vidya Sagar
2019-05-21 11:00   ` Thierry Reding
2019-05-21 19:37     ` Vidya Sagar
2019-05-21 11:00   ` Thierry Reding
2019-05-22  8:59     ` Vidya Sagar
2019-05-17 12:38 ` [PATCH V7 14/15] PCI: tegra: Add Tegra194 PCIe support Vidya Sagar
2019-05-21 11:41   ` Thierry Reding
2019-05-22 12:05     ` Vidya Sagar
2019-05-22 14:14       ` Thierry Reding
2019-05-24 18:07         ` Vidya Sagar
2019-05-17 12:38 ` [PATCH V7 15/15] arm64: Add Tegra194 PCIe driver to defconfig Vidya Sagar

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