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: <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>, <vidyas@nvidia.com>,
<sagar.tv@gmail.com>
Subject: [PATCH V4 11/16] dt-bindings: PHY: P2U: Add Tegra 194 P2U block
Date: Tue, 23 Apr 2019 13:57:25 +0530 [thread overview]
Message-ID: <20190423082730.370-12-vidyas@nvidia.com> (raw)
In-Reply-To: <20190423082730.370-1-vidyas@nvidia.com>
Add support for Tegra194 P2U (PIPE to UPHY) module block which is a glue
module instantiated one for each PCIe lane between Synopsys Designware core
based PCIe IP and Universal PHY block.
---
Changes since [v3]:
* None
Changes since [v2]:
* Changed node label to reflect new format that includes either 'hsio' or
'nvhs' in its name to reflect which UPHY brick they belong to
Changes since [v1]:
* This is a new patch in v2 series
.../bindings/phy/phy-tegra194-p2u.txt | 28 +++++++++++++++++++
1 file changed, 28 insertions(+)
create mode 100644 Documentation/devicetree/bindings/phy/phy-tegra194-p2u.txt
diff --git a/Documentation/devicetree/bindings/phy/phy-tegra194-p2u.txt b/Documentation/devicetree/bindings/phy/phy-tegra194-p2u.txt
new file mode 100644
index 000000000000..8b543cba483b
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/phy-tegra194-p2u.txt
@@ -0,0 +1,28 @@
+NVIDIA Tegra194 P2U binding
+
+Tegra194 has two PHY bricks namely HSIO (High Speed IO) and NVHS (NVIDIA High
+Speed) each interfacing with 12 and 8 P2U instances respectively.
+A P2U instance is a glue logic between Synopsys DesignWare Core PCIe IP's PIPE
+interface and PHY of HSIO/NVHS bricks. Each P2U instance represents one PCIe
+lane.
+
+Required properties:
+- compatible: For Tegra19x, must contain "nvidia,tegra194-p2u".
+- reg: Should be the physical address space and length of respective each P2U
+ instance.
+- reg-names: Must include the entry "ctl".
+
+Required properties for PHY port node:
+- #phy-cells: Defined by generic PHY bindings. Must be 0.
+
+Refer to phy/phy-bindings.txt for the generic PHY binding properties.
+
+Example:
+
+p2u_hsio_0: p2u@3e10000 {
+ compatible = "nvidia,tegra194-p2u";
+ reg = <0x03e10000 0x10000>;
+ reg-names = "ctl";
+
+ #phy-cells = <0>;
+};
--
2.17.1
next prev parent reply other threads:[~2019-04-23 8:29 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-23 8:27 [PATCH V4 00/16] Add Tegra194 PCIe support Vidya Sagar
2019-04-23 8:27 ` [PATCH V4 01/16] PCI: Add #defines for some of PCIe spec r4.0 features Vidya Sagar
2019-04-23 8:27 ` [PATCH V4 02/16] PCI/PME: Export pcie_pme_disable_msi() & pcie_pme_no_msi() APIs Vidya Sagar
2019-04-23 8:27 ` [PATCH V4 03/16] PCI: Export pcie_bus_config symbol Vidya Sagar
2019-04-23 8:27 ` [PATCH V4 04/16] PCI: dwc: Perform dbi regs write lock towards the end Vidya Sagar
2019-04-23 8:27 ` [PATCH V4 05/16] PCI: dwc: Move config space capability search API Vidya Sagar
2019-04-23 20:32 ` Bjorn Helgaas
2019-04-24 3:11 ` Vidya Sagar
2019-04-24 3:42 ` Oliver
2019-04-24 8:10 ` Gustavo Pimentel
2019-04-23 8:27 ` [PATCH V4 06/16] PCI: dwc: Add ext " Vidya Sagar
2019-04-23 20:35 ` Bjorn Helgaas
2019-04-24 3:12 ` Vidya Sagar
2019-04-23 8:27 ` [PATCH V4 07/16] dt-bindings: PCI: designware: Add binding for CDM register check Vidya Sagar
2019-04-23 8:27 ` [PATCH V4 08/16] PCI: dwc: Add support to enable " Vidya Sagar
2019-04-23 8:27 ` [PATCH V4 09/16] Documentation/devicetree: Add PCIe supports-clkreq property Vidya Sagar
2019-04-23 8:27 ` [PATCH V4 10/16] dt-bindings: PCI: tegra: Add device tree support for T194 Vidya Sagar
2019-04-23 8:27 ` Vidya Sagar [this message]
2019-04-23 8:27 ` [PATCH V4 12/16] arm64: tegra: Add P2U and PCIe controller nodes to Tegra194 DT Vidya Sagar
2019-04-23 8:27 ` [PATCH V4 13/16] arm64: tegra: Enable PCIe slots in P2972-0000 board Vidya Sagar
2019-04-23 8:27 ` [PATCH V4 14/16] phy: tegra: Add PCIe PIPE2UPHY support Vidya Sagar
2019-04-23 8:27 ` [PATCH V4 15/16] PCI: tegra: Add Tegra194 PCIe support Vidya Sagar
2019-04-23 8:27 ` [PATCH V4 16/16] arm64: Add Tegra194 PCIe driver to defconfig Vidya Sagar
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