Introduce EcoNet EN7528 SoC compatible in MediaTek PCIe controller
binding.

EcoNet PCIe controller has the same configuration model as
Mediatek v2 but is initiallized more similarly to an MT7621
PCIe.

Signed-off-by: Caleb James DeLisle <cjd@cjdns.fr>
---
 .../bindings/pci/mediatek-pcie.yaml           | 81 +++++++++++++++++++
 1 file changed, 81 insertions(+)

diff --git a/Documentation/devicetree/bindings/pci/mediatek-pcie.yaml b/Documentation/devicetree/bindings/pci/mediatek-pcie.yaml
index 0b8c78ec4f91..ae95b635f304 100644
--- a/Documentation/devicetree/bindings/pci/mediatek-pcie.yaml
+++ b/Documentation/devicetree/bindings/pci/mediatek-pcie.yaml
@@ -14,6 +14,7 @@ properties:
     oneOf:
       - enum:
           - airoha,an7583-pcie
+          - econet,en7528-pcie
           - mediatek,mt2712-pcie
           - mediatek,mt7622-pcie
           - mediatek,mt7629-pcie
@@ -226,6 +227,31 @@ allOf:
 
         mediatek,pbus-csr: false
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: econet,en7528-pcie
+    then:
+      properties:
+        clocks:
+          maxItems: 1
+
+        clock-names:
+          maxItems: 1
+
+        reset: false
+
+        reset-names: false
+
+        power-domain: false
+
+        mediatek,pbus-csr: false
+
+      required:
+        - phys
+        - phy-names
+
 unevaluatedProperties: false
 
 examples:
@@ -436,3 +462,58 @@ examples:
             };
         };
     };
+
+  # EN7528
+  - |
+    #include <dt-bindings/interrupt-controller/mips-gic.h>
+    #include <dt-bindings/clock/en7523-clk.h>
+    #include <dt-bindings/reset/airoha,en7523-reset.h>
+
+    soc_3 {
+        #address-cells = <1>;
+        #size-cells = <1>;
+
+        pcie@1fb81000 {
+          compatible = "econet,en7528-pcie";
+          device_type = "pci";
+          linux,pci-domain = <0>;
+          #address-cells = <3>;
+          #size-cells = <2>;
+
+          reg = <0x1fb81000 0x1000>;
+          reg-names = "port0";
+
+          clocks = <&scuclk EN7523_CLK_PCIE>;
+          clock-names = "sys_ck0";
+
+          phys = <&pcie_phy0>;
+          phy-names = "pcie-phy0";
+
+          ranges = <0x01000000 0 0x00000000 0x1f600000 0 0x00010000>,
+                   <0x82000000 0 0x20000000 0x20000000 0 0x08000000>;
+
+          interrupt-parent = <&intc>;
+          interrupts = <23>;
+          interrupt-names = "pcie_irq";
+          bus-range = <0x00 0xff>;
+          #interrupt-cells = <1>;
+          interrupt-map-mask = <0 0 0 7>;
+          interrupt-map = <0 0 0 1 &pcie_intc 0>,
+              <0 0 0 2 &pcie_intc 1>,
+              <0 0 0 3 &pcie_intc 2>,
+              <0 0 0 4 &pcie_intc 3>;
+
+          pcie_intc: interrupt-controller {
+            interrupt-controller;
+            #address-cells = <0>;
+            #interrupt-cells = <1>;
+          };
+
+          slot0: pcie@0,0 {
+            reg = <0x0000 0 0 0 0>;
+            #address-cells = <3>;
+            #size-cells = <2>;
+            ranges;
+          };
+        };
+    };
-- 
2.39.5

On Thu, 12 Mar 2026 16:53:30 +0000, Caleb James DeLisle wrote:
> Introduce EcoNet EN7528 SoC compatible in MediaTek PCIe controller
> binding.
> 
> EcoNet PCIe controller has the same configuration model as
> Mediatek v2 but is initiallized more similarly to an MT7621
> PCIe.
> 
> Signed-off-by: Caleb James DeLisle <cjd@cjdns.fr>
> ---
>  .../bindings/pci/mediatek-pcie.yaml           | 81 +++++++++++++++++++
>  1 file changed, 81 insertions(+)
> 

My bot found errors running 'make dt_binding_check' on your patch:

yamllint warnings/errors:

dtschema/dtc warnings/errors:
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/pci/mediatek-pcie.example.dtb: pcie@0,0: 'device_type' is a required property
	from schema $id: http://devicetree.org/schemas/pci/pci-bus-common.yaml

doc reference errors (make refcheckdocs):

See https://patchwork.kernel.org/project/devicetree/patch/20260312165332.569772-2-cjd@cjdns.fr

The base for the series is generally the latest rc1. A different dependency
should be noted in *this* patch.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit after running the above command yourself. Note
that DT_SCHEMA_FILES can be set to your schema file to speed up checking
your schema. However, it must be unset to test all examples with your schema.