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Message-Id: <30795b4a1cea54292d49881d5843e2bdbc496e4d.1611645945.git.mchehab+huawei@kernel.org>
Date: Tue, 26 Jan 2021 08:35:07 +0100
From: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
To: Rob Herring <robh+dt@...nel.org>
Cc: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
Binghui Wang <wangbinghui@...ilicon.com>,
Bjorn Helgaas <bhelgaas@...gle.com>,
Xiaowei Song <songxiaowei@...ilicon.com>,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-pci@...r.kernel.org
Subject: [PATCH RFC 2/2] dt: pci: kirin-pcie.txt: convert it to yaml
Convert the file into a JSON description at the yaml format.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
---
.../bindings/pci/hisilicon,kirin-pcie.yaml | 98 +++++++++++++++++++
.../devicetree/bindings/pci/kirin-pcie.txt | 50 ----------
MAINTAINERS | 2 +-
3 files changed, 99 insertions(+), 51 deletions(-)
create mode 100644 Documentation/devicetree/bindings/pci/hisilicon,kirin-pcie.yaml
delete mode 100644 Documentation/devicetree/bindings/pci/kirin-pcie.txt
diff --git a/Documentation/devicetree/bindings/pci/hisilicon,kirin-pcie.yaml b/Documentation/devicetree/bindings/pci/hisilicon,kirin-pcie.yaml
new file mode 100644
index 000000000000..8d8112b2aca0
--- /dev/null
+++ b/Documentation/devicetree/bindings/pci/hisilicon,kirin-pcie.yaml
@@ -0,0 +1,98 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pci/hisilicon,kirin-pcie.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: HiSilicon Kirin SoCs PCIe host DT description
+
+maintainers:
+ - Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
+
+description: |
+ Kirin PCIe host controller is based on the Synopsys DesignWare PCI core.
+ It shares common functions with the PCIe DesignWare core driver and
+ inherits common properties defined in
+ Documentation/devicetree/bindings/pci/designware-pcie.yaml.
+
+properties:
+ compatible:
+ const: hisilicon,kirin960-pcie
+
+ reg:
+ description: |
+ Should contain rc_dbi, apb, phy, config registers location and length.
+
+ reg-names:
+ description: |
+ Must include the following entries:
+ "dbi": controller configuration registers;
+ "apb": apb Ctrl register defined by Kirin;
+ "phy": apb PHY register defined by Kirin;
+ "config": PCIe configuration space registers.
+
+ "#address-cells":
+ const: 3
+
+ "#size-cells":
+ const: 2
+
+ reset-gpios:
+ description: The GPIO to generate PCIe PERST# assert and deassert signal.
+ maxItems: 1
+
+allOf:
+ - $ref: "designware,pcie.yaml#"
+
+required:
+ - compatible
+ - reg
+ - reg-names
+ - reset-gpios
+ - "#address-cells"
+ - "#size-cells"
+ - device_type
+ - ranges
+ - "#interrupt-cells"
+ - interrupt-map-mask
+ - interrupt-map
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/hi3660-clock.h>
+
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ pcie@...00000 {
+ compatible = "hisilicon,kirin960-pcie";
+ reg = <0x0 0xf4000000 0x0 0x1000>,
+ <0x0 0xff3fe000 0x0 0x1000>,
+ <0x0 0xf3f20000 0x0 0x40000>,
+ <0x0 0xF4000000 0 0x2000>;
+ reg-names = "dbi","apb","phy", "config";
+ bus-range = <0x0 0x1>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ device_type = "pci";
+ ranges = <0x02000000 0x0 0x00000000 0x0 0xf5000000 0x0 0x2000000>;
+ num-lanes = <1>;
+ #interrupt-cells = <1>;
+ interrupt-map-mask = <0xf800 0 0 7>;
+ interrupt-map = <0x0 0 0 1 &gic 0 0 0 282 4>,
+ <0x0 0 0 2 &gic 0 0 0 283 4>,
+ <0x0 0 0 3 &gic 0 0 0 284 4>,
+ <0x0 0 0 4 &gic 0 0 0 285 4>;
+ clocks = <&crg_ctrl HI3660_PCIEPHY_REF>,
+ <&crg_ctrl HI3660_CLK_GATE_PCIEAUX>,
+ <&crg_ctrl HI3660_PCLK_GATE_PCIE_PHY>,
+ <&crg_ctrl HI3660_PCLK_GATE_PCIE_SYS>,
+ <&crg_ctrl HI3660_ACLK_GATE_PCIE>;
+ clock-names = "pcie_phy_ref", "pcie_aux", "pcie_apb_phy",
+ "pcie_apb_sys", "pcie_aclk";
+ reset-gpios = <&gpio11 1 0 >;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/pci/kirin-pcie.txt b/Documentation/devicetree/bindings/pci/kirin-pcie.txt
deleted file mode 100644
index 8e4fe7fc50f9..000000000000
--- a/Documentation/devicetree/bindings/pci/kirin-pcie.txt
+++ /dev/null
@@ -1,50 +0,0 @@
-HiSilicon Kirin SoCs PCIe host DT description
-
-Kirin PCIe host controller is based on the Synopsys DesignWare PCI core.
-It shares common functions with the PCIe DesignWare core driver and
-inherits common properties defined in
-Documentation/devicetree/bindings/pci/designware,pcie.yaml.
-
-Additional properties are described here:
-
-Required properties
-- compatible:
- "hisilicon,kirin960-pcie" for PCIe of Kirin960 SoC
-- reg: Should contain rc_dbi, apb, phy, config registers location and length.
-- reg-names: Must include the following entries:
- "dbi": controller configuration registers;
- "apb": apb Ctrl register defined by Kirin;
- "phy": apb PHY register defined by Kirin;
- "config": PCIe configuration space registers.
-- reset-gpios: The GPIO to generate PCIe PERST# assert and deassert signal.
-
-Optional properties:
-
-Example based on kirin960:
-
- pcie@...00000 {
- compatible = "hisilicon,kirin-pcie";
- reg = <0x0 0xf4000000 0x0 0x1000>, <0x0 0xff3fe000 0x0 0x1000>,
- <0x0 0xf3f20000 0x0 0x40000>, <0x0 0xF4000000 0 0x2000>;
- reg-names = "dbi","apb","phy", "config";
- bus-range = <0x0 0x1>;
- #address-cells = <3>;
- #size-cells = <2>;
- device_type = "pci";
- ranges = <0x02000000 0x0 0x00000000 0x0 0xf5000000 0x0 0x2000000>;
- num-lanes = <1>;
- #interrupt-cells = <1>;
- interrupt-map-mask = <0xf800 0 0 7>;
- interrupt-map = <0x0 0 0 1 &gic 0 0 0 282 4>,
- <0x0 0 0 2 &gic 0 0 0 283 4>,
- <0x0 0 0 3 &gic 0 0 0 284 4>,
- <0x0 0 0 4 &gic 0 0 0 285 4>;
- clocks = <&crg_ctrl HI3660_PCIEPHY_REF>,
- <&crg_ctrl HI3660_CLK_GATE_PCIEAUX>,
- <&crg_ctrl HI3660_PCLK_GATE_PCIE_PHY>,
- <&crg_ctrl HI3660_PCLK_GATE_PCIE_SYS>,
- <&crg_ctrl HI3660_ACLK_GATE_PCIE>;
- clock-names = "pcie_phy_ref", "pcie_aux",
- "pcie_apb_phy", "pcie_apb_sys", "pcie_aclk";
- reset-gpios = <&gpio11 1 0 >;
- };
diff --git a/MAINTAINERS b/MAINTAINERS
index 3bb3233830ec..2b98a4763724 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -13611,7 +13611,7 @@ M: Xiaowei Song <songxiaowei@...ilicon.com>
M: Binghui Wang <wangbinghui@...ilicon.com>
L: linux-pci@...r.kernel.org
S: Maintained
-F: Documentation/devicetree/bindings/pci/kirin-pcie.txt
+F: Documentation/devicetree/bindings/pci/hisilicon,kirin-pcie.yaml
F: drivers/pci/controller/dwc/pcie-kirin.c
PCIE DRIVER FOR HISILICON STB
--
2.29.2
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