You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
62 lines
2.1 KiB
Diff
62 lines
2.1 KiB
Diff
From ea27764bc3ef2a05decf3ae05edffc289cd0d93c Mon Sep 17 00:00:00 2001
|
|
From: John Crispin <john@phrozen.org>
|
|
Date: Mon, 25 Jun 2018 15:52:02 +0200
|
|
Subject: [PATCH 19/33] dt-bindings: PCI: qcom,ar7240: adds binding doc
|
|
|
|
With the driver being converted from platform_data to pure OF, we need to
|
|
also add some docs.
|
|
|
|
Cc: Rob Herring <robh+dt@kernel.org>
|
|
Cc: devicetree@vger.kernel.org
|
|
Signed-off-by: John Crispin <john@phrozen.org>
|
|
---
|
|
.../devicetree/bindings/pci/qcom,ar7240-pci.txt | 42 ++++++++++++++++++++++
|
|
1 file changed, 42 insertions(+)
|
|
create mode 100644 Documentation/devicetree/bindings/pci/qcom,ar7240-pci.txt
|
|
|
|
--- /dev/null
|
|
+++ b/Documentation/devicetree/bindings/pci/qcom,ar7240-pci.txt
|
|
@@ -0,0 +1,42 @@
|
|
+* Qualcomm Atheros AR724X PCI express root complex
|
|
+
|
|
+Required properties:
|
|
+- compatible: should contain "qcom,ar7240-pci" to identify the core.
|
|
+- reg: Should contain the register ranges as listed in the reg-names property.
|
|
+- reg-names: Definition: Must include the following entries
|
|
+ - "crp_base" Configuration registers
|
|
+ - "ctrl_base" Control registers
|
|
+ - "cfg_base" IO Memory
|
|
+- #address-cells: set to <3>
|
|
+- #size-cells: set to <2>
|
|
+- ranges: ranges for the PCI memory and I/O regions
|
|
+- interrupt-map-mask and interrupt-map: standard PCI
|
|
+ properties to define the mapping of the PCIe interface to interrupt
|
|
+ numbers.
|
|
+- #interrupt-cells: set to <1>
|
|
+- interrupt-parent: phandle to the MIPS IRQ controller
|
|
+
|
|
+Optional properties:
|
|
+- interrupt-controller: define to enable the builtin IRQ cascade.
|
|
+
|
|
+* Example for qca9557
|
|
+ pcie-controller@180c0000 {
|
|
+ compatible = "qcom,ar7240-pci";
|
|
+ #address-cells = <3>;
|
|
+ #size-cells = <2>;
|
|
+ bus-range = <0x0 0x0>;
|
|
+ reg = <0x180c0000 0x1000>,
|
|
+ <0x180f0000 0x100>,
|
|
+ <0x14000000 0x1000>;
|
|
+ reg-names = "crp_base", "ctrl_base", "cfg_base";
|
|
+ ranges = <0x2000000 0 0x10000000 0x10000000 0 0x04000000
|
|
+ 0x1000000 0 0x00000000 0x00000000 0 0x00000001>;
|
|
+ interrupt-parent = <&intc2>;
|
|
+ interrupts = <1>;
|
|
+
|
|
+ interrupt-controller;
|
|
+ #interrupt-cells = <1>;
|
|
+
|
|
+ interrupt-map-mask = <0 0 0 1>;
|
|
+ interrupt-map = <0 0 0 0 &pcie0 0>;
|
|
+ };
|