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-rw-r--r--target/linux/ath79/patches-6.6/312-dt-bindings-PCI-qcom-ar7240-adds-binding-doc.patch61
1 files changed, 61 insertions, 0 deletions
diff --git a/target/linux/ath79/patches-6.6/312-dt-bindings-PCI-qcom-ar7240-adds-binding-doc.patch b/target/linux/ath79/patches-6.6/312-dt-bindings-PCI-qcom-ar7240-adds-binding-doc.patch
new file mode 100644
index 0000000000..a32c9bdcde
--- /dev/null
+++ b/target/linux/ath79/patches-6.6/312-dt-bindings-PCI-qcom-ar7240-adds-binding-doc.patch
@@ -0,0 +1,61 @@
+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@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>;
++ };