[PATCH v1 3/7] dt-bindings: net: Add bindings for StarFive dwmac

[Yanhong Wang]

Add bindings for the StarFive dwmac module on the StarFive RISC-V SoCs.

Signed-off-by: Yanhong Wang <yanhong.wang@xxxxxxxxxxxxxxxx>
---
 .../devicetree/bindings/net/snps,dwmac.yaml   |   1 +
 .../bindings/net/starfive,dwmac-plat.yaml     | 106 ++++++++++++++++++
 MAINTAINERS                                   |   5 +
 3 files changed, 112 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/net/starfive,dwmac-plat.yaml

diff --git a/Documentation/devicetree/bindings/net/snps,dwmac.yaml b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
index d8779d3de3d6..13c5928d7170 100644
--- a/Documentation/devicetree/bindings/net/snps,dwmac.yaml
+++ b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
@@ -33,6 +33,7 @@ select:
           - snps,dwmac-5.20
           - snps,dwxgmac
           - snps,dwxgmac-2.10
+          - starfive,dwmac
 
           # Deprecated
           - st,spear600-gmac
diff --git a/Documentation/devicetree/bindings/net/starfive,dwmac-plat.yaml b/Documentation/devicetree/bindings/net/starfive,dwmac-plat.yaml
new file mode 100644
index 000000000000..561cf2a713ab
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/starfive,dwmac-plat.yaml
@@ -0,0 +1,106 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) 2022 StarFive Technology Co., Ltd.
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/net/dwmac-starfive.yaml#";
+$schema: "http://devicetree.org/meta-schemas/core.yaml#";
+
+title: StarFive DWMAC glue layer
+
+maintainers:
+  - Yanhong Wang <yanhong.wang@xxxxxxxxxxxxxxxx>
+
+select:
+  properties:
+    compatible:
+      contains:
+        enum:
+          - starfive,dwmac
+  required:
+    - compatible
+
+allOf:
+  - $ref: "snps,dwmac.yaml#"
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - enum:
+               - starfive,dwmac
+          - const: snps,dwmac-5.20
+
+  clocks:
+    items:
+      - description: GMAC main clock
+      - description: GMAC AHB clock
+      - description: PTP clock
+      - description: TX clock
+      - description: GTXC clock
+      - description: GTX clock
+
+  clock-names:
+    contains:
+      enum:
+        - stmmaceth
+        - pclk
+        - ptp_ref
+        - tx
+        - gtxc
+        - gtx
+
+required:
+  - compatible
+  - clocks
+  - clock-names
+  - resets
+  - reset-names
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/starfive-jh7110.h>
+    #include <dt-bindings/reset/starfive-jh7110.h>
+
+    stmmac_axi_setup: stmmac-axi-config {
+        snps,wr_osr_lmt = <4>;
+        snps,rd_osr_lmt = <4>;
+        snps,blen = <256 128 64 32 0 0 0>;
+    };
+
+    gmac0: ethernet@16030000 {
+        compatible = "starfive,dwmac", "snps,dwmac-5.20";
+        reg = <0x16030000 0x10000>;
+        clocks = <&aoncrg_clk JH7110_AONCLK_GMAC0_AXI>,
+                 <&aoncrg_clk JH7110_AONCLK_GMAC0_AHB>,
+                 <&syscrg_clk JH7110_SYSCLK_GMAC0_PTP>,
+                 <&aoncrg_clk JH7110_AONCLK_GMAC0_TX>,
+                 <&syscrg_clk JH7110_SYSCLK_GMAC0_GTXC>,
+                 <&syscrg_clk JH7110_SYSCLK_GMAC0_GTXCLK>;
+        clock-names = "stmmaceth",
+                      "pclk",
+                      "ptp_ref",
+                      "tx",
+                      "gtxc",
+                      "gtx";
+        resets = <&aoncrg JH7110_AONRST_GMAC0_AXI>,
+                 <&aoncrg JH7110_AONRST_GMAC0_AHB>;
+        reset-names = "stmmaceth", "ahb";
+        interrupts = <7>, <6>, <5>;
+        interrupt-names = "macirq", "eth_wake_irq", "eth_lpi";
+        phy-mode = "rgmii-id";
+        snps,multicast-filter-bins = <64>;
+        snps,perfect-filter-entries = <8>;
+        rx-fifo-depth = <2048>;
+        tx-fifo-depth = <2048>;
+        snps,fixed-burst;
+        snps,no-pbl-x8;
+        snps,force_thresh_dma_mode;
+        snps,axi-config = <&stmmac_axi_setup>;
+        snps,tso;
+        snps,en-tx-lpi-clockgating;
+        snps,lpi_en;
+        snps,txpbl = <16>;
+        snps,rxpbl = <16>;
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index a70c1d0f303e..7eaaec8d3b96 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -19606,6 +19606,11 @@ F:	Documentation/devicetree/bindings/clock/starfive*
 F:	drivers/clk/starfive/
 F:	include/dt-bindings/clock/starfive*
 
+STARFIVE DWMAC GLUE LAYER
+M:	Yanhong Wang <yanhong.wang@xxxxxxxxxxxxxxxx>
+S:	Maintained
+F:	Documentation/devicetree/bindings/net/starfive,dwmac-plat.yaml
+
 STARFIVE PINCTRL DRIVER
 M:	Emil Renner Berthing <kernel@xxxxxxxx>
 M:	Jianlong Huang <jianlong.huang@xxxxxxxxxxxxxxxx>
-- 
2.17.1