linux-kernel - [PATCH v5 1/3] PCI: Add DT binding for tango PCIe controller

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Message-ID: <69f3ffe7-3c39-fa94-71f8-91744a869cc9@sigmadesigns.com>
Date:   Wed, 31 May 2017 15:30:26 +0200
From:   Marc Gonzalez <marc_gonzalez@...madesigns.com>
To:     Bjorn Helgaas <helgaas@...nel.org>,
        Marc Zyngier <marc.zyngier@....com>,
        Thomas Gleixner <tglx@...utronix.de>
CC:     Robin Murphy <robin.murphy@....com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Liviu Dudau <liviu.dudau@....com>,
        David Laight <david.laight@...lab.com>,
        linux-pci <linux-pci@...r.kernel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        Thibaud Cornic <thibaud_cornic@...madesigns.com>,
        Phuong Nguyen <phuong_nguyen@...madesigns.com>,
        LKML <linux-kernel@...r.kernel.org>,
        DT <devicetree@...r.kernel.org>, Mason <slash.tmp@...e.fr>
Subject: [PATCH v5 1/3] PCI: Add DT binding for tango PCIe controller

Binding for the Sigma Designs SMP8759 SoC.

Signed-off-by: Marc Gonzalez <marc_gonzalez@...madesigns.com>
---
 Documentation/devicetree/bindings/pci/tango-pcie.txt | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/Documentation/devicetree/bindings/pci/tango-pcie.txt b/Documentation/devicetree/bindings/pci/tango-pcie.txt
new file mode 100644
index 000000000000..35ef2c811a27
--- /dev/null
+++ b/Documentation/devicetree/bindings/pci/tango-pcie.txt
@@ -0,0 +1,30 @@
+Sigma Designs Tango PCIe controller
+
+Required properties:
+
+- compatible: "sigma,smp8759-pcie"
+- reg: address/size of PCI configuration space, address/size of register area
+- device_type: "pci"
+- #size-cells: <2>
+- #address-cells: <3>
+- msi-controller
+- ranges: translation from system to bus addresses
+- interrupts: spec for misc interrupts, spec for MSI
+
+http://elinux.org/Device_Tree_Usage#PCI_Address_Translation
+http://elinux.org/Device_Tree_Usage#Advanced_Interrupt_Mapping
+
+Example:
+
+	pcie@...00 {
+		compatible = "sigma,smp8759-pcie";
+		reg = <0x50000000 SZ_4M>, <0x2e000 0x100>;
+		device_type = "pci";
+		#size-cells = <2>;
+		#address-cells = <3>;
+		msi-controller;
+		ranges = <0x02000000 0x0 0x00400000  0x50400000  0x0 SZ_60M>;
+		interrupts =
+			<54 IRQ_TYPE_LEVEL_HIGH>, /* misc interrupts */
+			<55 IRQ_TYPE_LEVEL_HIGH>; /* MSI */
+	};
-- 
2.11.0