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authorJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-11 10:41:07 +0300
committerJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-13 08:17:18 +0300
commite09b41010ba33a20a87472ee821fa407a5b8da36 (patch)
treed10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/Documentation/devicetree/bindings/pci/hisilicon-pcie.txt
parentf93b97fd65072de626c074dbe099a1fff05ce060 (diff)
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page. During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/Documentation/devicetree/bindings/pci/hisilicon-pcie.txt')
-rw-r--r--kernel/Documentation/devicetree/bindings/pci/hisilicon-pcie.txt44
1 files changed, 44 insertions, 0 deletions
diff --git a/kernel/Documentation/devicetree/bindings/pci/hisilicon-pcie.txt b/kernel/Documentation/devicetree/bindings/pci/hisilicon-pcie.txt
new file mode 100644
index 000000000..17c6ed9c6
--- /dev/null
+++ b/kernel/Documentation/devicetree/bindings/pci/hisilicon-pcie.txt
@@ -0,0 +1,44 @@
+HiSilicon PCIe host bridge DT description
+
+HiSilicon PCIe host controller is based on Designware PCI core.
+It shares common functions with PCIe Designware core driver and inherits
+common properties defined in
+Documentation/devicetree/bindings/pci/designware-pci.txt.
+
+Additional properties are described here:
+
+Required properties:
+- compatible: Should contain "hisilicon,hip05-pcie".
+- reg: Should contain rc_dbi, config registers location and length.
+- reg-names: Must include the following entries:
+ "rc_dbi": controller configuration registers;
+ "config": PCIe configuration space registers.
+- msi-parent: Should be its_pcie which is an ITS receiving MSI interrupts.
+- port-id: Should be 0, 1, 2 or 3.
+
+Optional properties:
+- status: Either "ok" or "disabled".
+- dma-coherent: Present if DMA operations are coherent.
+
+Example:
+ pcie@0xb0080000 {
+ compatible = "hisilicon,hip05-pcie", "snps,dw-pcie";
+ reg = <0 0xb0080000 0 0x10000>, <0x220 0x00000000 0 0x2000>;
+ reg-names = "rc_dbi", "config";
+ bus-range = <0 15>;
+ msi-parent = <&its_pcie>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ device_type = "pci";
+ dma-coherent;
+ ranges = <0x82000000 0 0x00000000 0x220 0x00000000 0 0x10000000>;
+ num-lanes = <8>;
+ port-id = <1>;
+ #interrupts-cells = <1>;
+ interrupts-map-mask = <0xf800 0 0 7>;
+ interrupts-map = <0x0 0 0 1 &mbigen_pcie 1 10
+ 0x0 0 0 2 &mbigen_pcie 2 11
+ 0x0 0 0 3 &mbigen_pcie 3 12
+ 0x0 0 0 4 &mbigen_pcie 4 13>;
+ status = "ok";
+ };