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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
commit57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch)
tree5e910f0e82173f4ef4f51111366a3f1299037a7b /Documentation/devicetree/bindings/pci/versatile.txt
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+* ARM Versatile Platform Baseboard PCI interface
+
+PCI host controller found on the ARM Versatile PB board's FPGA.
+
+Required properties:
+- compatible: should contain "arm,versatile-pci" to identify the Versatile PCI
+ controller.
+- reg: base addresses and lengths of the pci controller. There must be 3
+ entries:
+ - Versatile-specific registers
+ - Self Config space
+ - Config space
+- #address-cells: set to <3>
+- #size-cells: set to <2>
+- device_type: set to "pci"
+- bus-range: set to <0 0xff>
+- ranges: ranges for the PCI memory and I/O regions
+- #interrupt-cells: set to <1>
+- interrupt-map-mask and interrupt-map: standard PCI properties to define
+ the mapping of the PCI interface to interrupt numbers.
+
+Example:
+
+pci-controller@10001000 {
+ compatible = "arm,versatile-pci";
+ device_type = "pci";
+ reg = <0x10001000 0x1000
+ 0x41000000 0x10000
+ 0x42000000 0x100000>;
+ bus-range = <0 0xff>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ #interrupt-cells = <1>;
+
+ ranges = <0x01000000 0 0x00000000 0x43000000 0 0x00010000 /* downstream I/O */
+ 0x02000000 0 0x50000000 0x50000000 0 0x10000000 /* non-prefetchable memory */
+ 0x42000000 0 0x60000000 0x60000000 0 0x10000000>; /* prefetchable memory */
+
+ interrupt-map-mask = <0x1800 0 0 7>;
+ interrupt-map = <0x1800 0 0 1 &sic 28
+ 0x1800 0 0 2 &sic 29
+ 0x1800 0 0 3 &sic 30
+ 0x1800 0 0 4 &sic 27
+
+ 0x1000 0 0 1 &sic 27
+ 0x1000 0 0 2 &sic 28
+ 0x1000 0 0 3 &sic 29
+ 0x1000 0 0 4 &sic 30
+
+ 0x0800 0 0 1 &sic 30
+ 0x0800 0 0 2 &sic 27
+ 0x0800 0 0 3 &sic 28
+ 0x0800 0 0 4 &sic 29
+
+ 0x0000 0 0 1 &sic 29
+ 0x0000 0 0 2 &sic 30
+ 0x0000 0 0 3 &sic 27
+ 0x0000 0 0 4 &sic 28>;
+};