[PATCH RFC/RFT 1/2] dt-bindings: net: sun8i-emac: Add A733 GMAC210 compatible

[Jerome Brunet]

The A733 GMAC210 is a DesignWare MAC 5.20 close to the A523 GMAC200, with
the following differences:

 * The glue configuration registers are a dedicated MMIO region of the
   controller instead of a syscon register, so a second reg entry replaces
   the syscon phandle.
 * The DMA channels and the LPI event have their own interrupt lines.
 * A PTP reference clock and an AHB reset are needed.
 * Unlike the A523, the controller does not appear to belong to a power
   domain.
 * The TX clock delay field is 5 bits wide, allowing up to 3100ps.

Add the new compatible and describe those differences.

Signed-off-by: Jerome Brunet <jbrunet@xxxxxxxxxxxx>
---
 .../bindings/net/allwinner,sun8i-a83t-emac.yaml    | 130 ++++++++++++++++++---
 1 file changed, 115 insertions(+), 15 deletions(-)

diff --git a/Documentation/devicetree/bindings/net/allwinner,sun8i-a83t-emac.yaml b/Documentation/devicetree/bindings/net/allwinner,sun8i-a83t-emac.yaml
index 323a669fa982..fec42f46378a 100644
--- a/Documentation/devicetree/bindings/net/allwinner,sun8i-a83t-emac.yaml
+++ b/Documentation/devicetree/bindings/net/allwinner,sun8i-a83t-emac.yaml
@@ -22,6 +22,7 @@ select:
           - allwinner,sun8i-v3s-emac
           - allwinner,sun50i-a64-emac
           - allwinner,sun55i-a523-gmac200
+          - allwinner,sun60i-a733-gmac210
   required:
     - compatible
 
@@ -44,25 +45,38 @@ properties:
       - items:
           - const: allwinner,sun55i-a523-gmac200
           - const: snps,dwmac-4.20a
+      - items:
+          - const: allwinner,sun60i-a733-gmac210
+          - const: snps,dwmac-5.20
 
   reg:
-    maxItems: 1
+    minItems: 1
+    items:
+      - description: MAC controller registers
+      - description: Glue configuration registers
 
   interrupts:
-    maxItems: 1
+    minItems: 1
+    maxItems: 4
 
   interrupt-names:
-    const: macirq
+    minItems: 1
+    items:
+      - const: macirq
+      - const: eth_lpi
+      - const: tx-queue-0
+      - const: rx-queue-0
 
   clocks:
     minItems: 1
-    maxItems: 2
+    maxItems: 3
 
   clock-names:
     minItems: 1
     items:
       - const: stmmaceth
       - const: mbus
+      - const: ptp_ref
 
   phy-supply:
     description: PHY regulator
@@ -87,7 +101,6 @@ required:
   - reset-names
   - phy-handle
   - phy-mode
-  - syscon
 
 allOf:
   - $ref: snps,dwmac.yaml#
@@ -219,36 +232,94 @@ allOf:
       properties:
         compatible:
           contains:
-            const: allwinner,sun55i-a523-gmac200
+            enum:
+              - allwinner,sun55i-a523-gmac200
+              - allwinner,sun60i-a733-gmac210
     then:
       properties:
-        clocks:
-          minItems: 2
-        clock-names:
-          minItems: 2
         tx-internal-delay-ps:
           default: 0
           minimum: 0
-          maximum: 700
           multipleOf: 100
           description:
-            External RGMII PHY TX clock delay chain value in ps.
+            Internal RGMII PHY TX clock delay chain value in ps.
         rx-internal-delay-ps:
           default: 0
           minimum: 0
           maximum: 3100
           multipleOf: 100
           description:
-            External RGMII PHY TX clock delay chain value in ps.
-      required:
-        - power-domains
+            Internal RGMII PHY RX clock delay chain value in ps.
     else:
       properties:
+        reg:
+          maxItems: 1
+        interrupts:
+          maxItems: 1
+        interrupt-names:
+          maxItems: 1
         clocks:
           maxItems: 1
         clock-names:
           maxItems: 1
         power-domains: false
+      required:
+        - syscon
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: allwinner,sun55i-a523-gmac200
+    then:
+      properties:
+        reg:
+          maxItems: 1
+        interrupts:
+          maxItems: 1
+        interrupt-names:
+          maxItems: 1
+        clocks:
+          minItems: 2
+          maxItems: 2
+        clock-names:
+          minItems: 2
+          maxItems: 2
+        resets:
+          maxItems: 1
+        reset-names:
+          maxItems: 1
+        tx-internal-delay-ps:
+          maximum: 700
+      required:
+        - power-domains
+        - syscon
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: allwinner,sun60i-a733-gmac210
+    then:
+      properties:
+        reg:
+          minItems: 2
+        interrupts:
+          minItems: 4
+        interrupt-names:
+          minItems: 4
+        clocks:
+          minItems: 3
+        clock-names:
+          minItems: 3
+        resets:
+          minItems: 2
+        reset-names:
+          minItems: 2
+        tx-internal-delay-ps:
+          maximum: 3100
+        syscon: false
+        power-domains: false
 
 unevaluatedProperties: false
 
@@ -412,4 +483,33 @@ examples:
             };
         };
     };
+
+  - |
+    ethernet@4510000 {
+        compatible = "allwinner,sun60i-a733-gmac210",
+                     "snps,dwmac-5.20";
+        reg = <0x04510000 0x8000>,
+              <0x04518000 0x1000>;
+        clocks = <&ccu 58>, <&ccu 59>, <&ccu 60>;
+        clock-names = "stmmaceth", "mbus", "ptp_ref";
+        resets = <&ccu 30>, <&ccu 31>;
+        reset-names = "stmmaceth", "ahb";
+        interrupts = <0 175 4>, <0 179 4>, <0 176 4>, <0 177 4>;
+        interrupt-names = "macirq", "eth_lpi", "tx-queue-0", "rx-queue-0";
+        pinctrl-names = "default";
+        pinctrl-0 = <&rgmii1_pins>;
+        phy-handle = <&ext_rgmii_phy_2>;
+        phy-mode = "rgmii-id";
+        snps,fixed-burst;
+
+        mdio {
+            compatible = "snps,dwmac-mdio";
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            ext_rgmii_phy_2: ethernet-phy@1 {
+                reg = <1>;
+            };
+        };
+    };
 ...

-- 
2.47.3