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authorBjorn Helgaas <bhelgaas@google.com>2018-06-07 00:10:43 +0300
committerBjorn Helgaas <bhelgaas@google.com>2018-06-07 00:10:43 +0300
commite52d38f4abf49f8b63a6ad0ce21e5f495c15897f (patch)
tree8df6e7f26ebebdd5f5363bebe87151c1f5a196dd /Documentation/devicetree/bindings/pci
parent1c2bef0a3fd14287a66edd7ead57fd2e439485a2 (diff)
parent7304a9a99d7b15fd69b3f00f7e16206bba110b35 (diff)
downloadlinux-e52d38f4abf49f8b63a6ad0ce21e5f495c15897f.tar.xz
Merge branch 'lorenzo/pci/rockchip'
- update arm64 defconfig for Rockchip (Shawn Lin) - refactor Rockchip code to facilitate both root port and endpoint mode (Shawn Lin) - add Rockchip endpoint mode driver (Shawn Lin) * lorenzo/pci/rockchip: arm64: defconfig: update config for Rockchip PCIe dt-bindings: PCI: rockchip: Add DT bindings for Rockchip PCIe EP driver PCI: rockchip: Add EP driver for Rockchip PCIe controller dt-bindings: PCI: rockchip: Rename rockchip-pcie.txt to rockchip-pcie-host.txt PCI: rockchip: Split out common function to init controller PCI: rockchip: Split out rockchip_pcie_parse_dt() to parse DT PCI: rockchip: Separate common code from RC driver # Conflicts: # drivers/pci/host/pcie-rockchip.c
Diffstat (limited to 'Documentation/devicetree/bindings/pci')
-rw-r--r--Documentation/devicetree/bindings/pci/rockchip-pcie-ep.txt62
-rw-r--r--Documentation/devicetree/bindings/pci/rockchip-pcie-host.txt (renamed from Documentation/devicetree/bindings/pci/rockchip-pcie.txt)0
2 files changed, 62 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/pci/rockchip-pcie-ep.txt b/Documentation/devicetree/bindings/pci/rockchip-pcie-ep.txt
new file mode 100644
index 000000000000..778467307a93
--- /dev/null
+++ b/Documentation/devicetree/bindings/pci/rockchip-pcie-ep.txt
@@ -0,0 +1,62 @@
+* Rockchip AXI PCIe Endpoint Controller DT description
+
+Required properties:
+- compatible: Should contain "rockchip,rk3399-pcie-ep"
+- reg: Two register ranges as listed in the reg-names property
+- reg-names: Must include the following names
+ - "apb-base"
+ - "mem-base"
+- clocks: Must contain an entry for each entry in clock-names.
+ See ../clocks/clock-bindings.txt for details.
+- clock-names: Must include the following entries:
+ - "aclk"
+ - "aclk-perf"
+ - "hclk"
+ - "pm"
+- resets: Must contain seven entries for each entry in reset-names.
+ See ../reset/reset.txt for details.
+- reset-names: Must include the following names
+ - "core"
+ - "mgmt"
+ - "mgmt-sticky"
+ - "pipe"
+ - "pm"
+ - "aclk"
+ - "pclk"
+- pinctrl-names : The pin control state names
+- pinctrl-0: The "default" pinctrl state
+- phys: Must contain an phandle to a PHY for each entry in phy-names.
+- phy-names: Must include 4 entries for all 4 lanes even if some of
+ them won't be used for your cases. Entries are of the form "pcie-phy-N":
+ where N ranges from 0 to 3.
+ (see example below and you MUST also refer to ../phy/rockchip-pcie-phy.txt
+ for changing the #phy-cells of phy node to support it)
+- rockchip,max-outbound-regions: Maximum number of outbound regions
+
+Optional Property:
+- num-lanes: number of lanes to use
+- max-functions: Maximum number of functions that can be configured (default 1).
+
+pcie0-ep: pcie@f8000000 {
+ compatible = "rockchip,rk3399-pcie-ep";
+ #address-cells = <3>;
+ #size-cells = <2>;
+ rockchip,max-outbound-regions = <16>;
+ clocks = <&cru ACLK_PCIE>, <&cru ACLK_PERF_PCIE>,
+ <&cru PCLK_PCIE>, <&cru SCLK_PCIE_PM>;
+ clock-names = "aclk", "aclk-perf",
+ "hclk", "pm";
+ max-functions = /bits/ 8 <8>;
+ num-lanes = <4>;
+ reg = <0x0 0xfd000000 0x0 0x1000000>, <0x0 0x80000000 0x0 0x20000>;
+ reg-names = "apb-base", "mem-base";
+ resets = <&cru SRST_PCIE_CORE>, <&cru SRST_PCIE_MGMT>,
+ <&cru SRST_PCIE_MGMT_STICKY>, <&cru SRST_PCIE_PIPE> ,
+ <&cru SRST_PCIE_PM>, <&cru SRST_P_PCIE>, <&cru SRST_A_PCIE>;
+ reset-names = "core", "mgmt", "mgmt-sticky", "pipe",
+ "pm", "pclk", "aclk";
+ phys = <&pcie_phy 0>, <&pcie_phy 1>, <&pcie_phy 2>, <&pcie_phy 3>;
+ phy-names = "pcie-phy-0", "pcie-phy-1", "pcie-phy-2", "pcie-phy-3";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pcie_clkreq>;
+};
diff --git a/Documentation/devicetree/bindings/pci/rockchip-pcie.txt b/Documentation/devicetree/bindings/pci/rockchip-pcie-host.txt
index af34c65773fd..af34c65773fd 100644
--- a/Documentation/devicetree/bindings/pci/rockchip-pcie.txt
+++ b/Documentation/devicetree/bindings/pci/rockchip-pcie-host.txt