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From: Ray Jui <rjui@broadcom.com>
To: Bjorn Helgaas <bhelgaas@google.com>, Rob Herring <robh+dt@kernel.org>,
        Pawel Moll <pawel.moll@arm.com>, Mark Rutland <mark.rutland@arm.com>,
        "Ian Campbell" <ijc+devicetree@hellion.org.uk>,
        Kumar Gala <galak@codeaurora.org>,
        Grant Likely <grant.likely@linaro.org>,
        Christian Daudt <bcm@fixthebug.org>, Matt Porter <mporter@linaro.org>,
        Florian Fainelli <f.fainelli@gmail.com>,
        Russell King <linux@arm.linux.org.uk>
CC: Scott Branden <sbranden@broadcom.com>, <linux-pci@vger.kernel.org>,
        <linux-kernel@vger.kernel.org>, <linux-arm-kernel@lists.infradead.org>,
        <bcm-kernel-feedback-list@broadcom.com>, <devicetree@vger.kernel.org>,
        "Ray Jui" <rjui@broadcom.com>
Subject: [PATCH 1/4] pci: iProc: define Broadcom iProc PCIe binding
Date: Tue, 9 Dec 2014 16:04:28 -0800
Message-ID: <1418169871-19232-2-git-send-email-rjui@broadcom.com>
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References: <Ray Jui <rjui@broadcom.com>
 <1418169871-19232-1-git-send-email-rjui@broadcom.com>
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Document the PCIe device tree binding for Broadcom iProc family of SoCs

Signed-off-by: Ray Jui <rjui@broadcom.com>
Reviewed-by: Scott Branden <sbranden@broadcom.com>
---
 .../devicetree/bindings/pci/brcm,iproc-pcie.txt    |   62 ++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/pci/brcm,iproc-pcie.txt

diff --git a/Documentation/devicetree/bindings/pci/brcm,iproc-pcie.txt b/Documentation/devicetree/bindings/pci/brcm,iproc-pcie.txt
new file mode 100644
index 0000000..2467628
--- /dev/null
+++ b/Documentation/devicetree/bindings/pci/brcm,iproc-pcie.txt
@@ -0,0 +1,62 @@
+* Broadcom iProc PCIe controller
+
+Required properties:
+- compatible: Must be "brcm,iproc-pcie"
+- reg: base address and length of the PCIe controller and the MDIO interface
+  that controls the PCIe PHY
+- interrupts: interrupt IDs
+- bus-range: PCI bus numbers covered
+- #address-cells: set to <3>
+- #size-cells: set to <2>
+- device_type: set to "pci"
+- ranges: ranges for the PCI memory and I/O regions
+- phy-addr: MDC/MDIO adddress of the PCIe PHY
+- have-msi-inten-reg: Required for legacy iProc PCIe controllers that need the
+  MSI interrupt enable register to be set explicitly
+
+The Broadcom iProc PCie driver adapts the multi-domain structure, i.e., each
+interface has its own domain and therefore has its own device node
+Example:
+
+SoC specific DT Entry:
+
+	pcie0: pcie@18012000 {
+		compatible = "brcm,iproc-pcie";
+		reg = <0x18012000 0x1000>,
+			<0x18002000 0x1000>;
+		interrupts = <GIC_SPI 96 IRQ_TYPE_NONE>,
+			     <GIC_SPI 97 IRQ_TYPE_NONE>,
+			     <GIC_SPI 98 IRQ_TYPE_NONE>,
+			     <GIC_SPI 99 IRQ_TYPE_NONE>,
+			     <GIC_SPI 100 IRQ_TYPE_NONE>,
+			     <GIC_SPI 101 IRQ_TYPE_NONE>;
+		bus-range = <0x00 0xFF>;
+
+		#address-cells = <3>;
+		#size-cells = <2>;
+		device_type = "pci";
+		ranges = <0x81000000 0 0	  0x28000000 0 0x00010000   /* downstream I/O */
+			  0x82000000 0 0x20000000 0x20000000 0 0x04000000>; /* non-prefetchable memory */
+		phy-addr = <5>;
+	};
+
+	pcie1: pcie@18013000 {
+		compatible = "brcm,iproc-pcie";
+		reg = <0x18013000 0x1000>,
+			<0x18002000 0x1000>;
+
+		interrupts = <GIC_SPI 102 IRQ_TYPE_NONE>,
+			     <GIC_SPI 103 IRQ_TYPE_NONE>,
+			     <GIC_SPI 104 IRQ_TYPE_NONE>,
+			     <GIC_SPI 105 IRQ_TYPE_NONE>,
+			     <GIC_SPI 106 IRQ_TYPE_NONE>,
+			     <GIC_SPI 107 IRQ_TYPE_NONE>;
+		bus-range = <0x00 0xFF>;
+
+		#address-cells = <3>;
+		#size-cells = <2>;
+		device_type = "pci";
+		ranges = <0x81000000 0 0	  0x48000000 0 0x00010000   /* downstream I/O */
+			  0x82000000 0 0x40000000 0x40000000 0 0x04000000>; /* non-prefetchable memory */
+		phy-addr = <6>;
+	};
-- 
1.7.9.5

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