[PATCH RFC net-next 6/9] dt-bindings: net: qcom,ethqos: add Qualcomm Nord

[Mohd Ayaan Anwar]

Qualcomm Nord integrates two ETHQOS controllers based on the Synopsys
DesignWare 25GMAC IP. Each controller has five clocks, one power domain
and ten SMMU stream mappings.

Due to a hardware quirk, PCS link-up depends on the EEE clock being
enabled.

Add the Nord compatible and describe its platform-specific resource
requirements. Also add Nord to the common DWMAC schema exceptions used
by Qualcomm ETHQOS platforms.

Signed-off-by: Mohd Ayaan Anwar <mohd.anwar at oss.qualcomm.com>
---
 .../devicetree/bindings/net/qcom,ethqos.yaml       | 57 +++++++++++++++++-----
 .../devicetree/bindings/net/snps,dwmac.yaml        |  2 +
 2 files changed, 48 insertions(+), 11 deletions(-)

diff --git a/Documentation/devicetree/bindings/net/qcom,ethqos.yaml b/Documentation/devicetree/bindings/net/qcom,ethqos.yaml
index 423959cb928d945aa3e758a3c803d12bd61ec42b..41de2ccd56458ed20620905d5d3716b3d2568531 100644
--- a/Documentation/devicetree/bindings/net/qcom,ethqos.yaml
+++ b/Documentation/devicetree/bindings/net/qcom,ethqos.yaml
@@ -11,11 +11,33 @@ maintainers:
   - Konrad Dybcio <konradybcio at kernel.org>
 
 description:
-  dwmmac based Qualcomm ethernet devices which support Gigabit
-  ethernet (version v2.3.0 and onwards).
+  DWMAC and XGMAC based Qualcomm Ethernet devices supporting Gigabit and
+  multi-gigabit Ethernet.
 
 allOf:
   - $ref: snps,dwmac.yaml#
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: qcom,nord-ethqos
+    then:
+      properties:
+        clocks:
+          minItems: 5
+          maxItems: 5
+        clock-names:
+          minItems: 5
+          maxItems: 5
+        iommus:
+          minItems: 10
+          maxItems: 10
+      required:
+        - power-domains
+    else:
+      properties:
+        iommus:
+          maxItems: 1
 
 properties:
   compatible:
@@ -30,6 +52,7 @@ properties:
           - const: qcom,sa8775p-ethqos
       - enum:
           - qcom,qcs404-ethqos
+          - qcom,nord-ethqos
           - qcom,sa8775p-ethqos
           - qcom,sc8280xp-ethqos
           - qcom,sm8150-ethqos
@@ -57,19 +80,31 @@ properties:
       - const: sfty
 
   clocks:
-    maxItems: 4
+    minItems: 4
+    maxItems: 5
 
   clock-names:
-    items:
-      - const: stmmaceth
-      - const: pclk
-      - const: ptp_ref
-      - enum:
-          - rgmii
-          - phyaux
+    oneOf:
+      - items:
+          - const: stmmaceth
+          - const: pclk
+          - const: ptp_ref
+          - const: phyaux
+          - const: eee
+            description: |
+              Due to a hardware quirk, PCS link-up depends on the EEE clock
+              being enabled.
+      - items:
+          - const: stmmaceth
+          - const: pclk
+          - const: ptp_ref
+          - enum:
+              - rgmii
+              - phyaux
 
   iommus:
-    maxItems: 1
+    minItems: 1
+    maxItems: 10
 
   dma-coherent: true
 
diff --git a/Documentation/devicetree/bindings/net/snps,dwmac.yaml b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
index 0ff9e3284a06124cb0a3ee62e2ea6d0b1f7f646d..e8c2911d9817cdf64e426a5a02d5f335a0fb8241 100644
--- a/Documentation/devicetree/bindings/net/snps,dwmac.yaml
+++ b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
@@ -72,6 +72,7 @@ properties:
         - nuvoton,ma35d1-dwmac
         - nxp,s32g2-dwmac
         - qcom,qcs404-ethqos
+        - qcom,nord-ethqos
         - qcom,sa8775p-ethqos
         - qcom,sc8280xp-ethqos
         - qcom,sm8150-ethqos
@@ -631,6 +632,7 @@ allOf:
                 - ingenic,x1830-mac
                 - ingenic,x2000-mac
                 - qcom,qcs404-ethqos
+                - qcom,nord-ethqos
                 - qcom,sa8775p-ethqos
                 - qcom,sc8280xp-ethqos
                 - qcom,sm8150-ethqos

-- 
2.34.1