devicetree.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
* [PATCH v2 0/4] PCI: mediatek: add support AN7583 + YAML rework
@ 2025-09-23 20:12 Christian Marangi
  2025-09-23 20:12 ` [PATCH v2 1/4] dt-bindings: clock: mediatek: Fix wrong compatible list for hifsys YAML Christian Marangi
                   ` (3 more replies)
  0 siblings, 4 replies; 8+ messages in thread
From: Christian Marangi @ 2025-09-23 20:12 UTC (permalink / raw)
  To: Michael Turquette, Stephen Boyd, Rob Herring, Krzysztof Kozlowski,
	Conor Dooley, Matthias Brugger, AngeloGioacchino Del Regno,
	Ryder Lee, Jianjun Wang, Bjorn Helgaas, Lorenzo Pieralisi,
	Krzysztof Wilczyński, Manivannan Sadhasivam,
	Christian Marangi, linux-clk, devicetree, linux-kernel,
	linux-arm-kernel, linux-mediatek, linux-pci, upstream

This little series convert the PCIe GEN2 Documentation to YAML schema
and adds support for Airoha AN7583 GEN2 PCIe Controller.

Changes v2:
- Add cover letter
- Describe skip_pcie_rstb variable
- Fix hifsys schema (missing syscon)
- Address comments on the YAML schema for PCIe GEN2
- Keep alphabetical order for AN7583

Christian Marangi (4):
  dt-bindings: clock: mediatek: Fix wrong compatible list for hifsys
    YAML
  dt-bindings: PCI: mediatek: Convert to YAML schema
  dt-bindings: PCI: mediatek: Add support for Airoha AN7583
  PCI: mediatek: add support for Airoha AN7583 SoC

 .../clock/mediatek,mt2701-hifsys.yaml         |   8 +-
 .../bindings/pci/mediatek-pcie-mt7623.yaml    | 173 ++++++
 .../devicetree/bindings/pci/mediatek-pcie.txt | 289 ----------
 .../bindings/pci/mediatek-pcie.yaml           | 514 ++++++++++++++++++
 drivers/pci/controller/pcie-mediatek.c        |  85 ++-
 5 files changed, 755 insertions(+), 314 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/pci/mediatek-pcie-mt7623.yaml
 delete mode 100644 Documentation/devicetree/bindings/pci/mediatek-pcie.txt
 create mode 100644 Documentation/devicetree/bindings/pci/mediatek-pcie.yaml

-- 
2.51.0


^ permalink raw reply	[flat|nested] 8+ messages in thread

* [PATCH v2 1/4] dt-bindings: clock: mediatek: Fix wrong compatible list for hifsys YAML
  2025-09-23 20:12 [PATCH v2 0/4] PCI: mediatek: add support AN7583 + YAML rework Christian Marangi
@ 2025-09-23 20:12 ` Christian Marangi
  2025-09-23 23:15   ` Rob Herring (Arm)
  2025-09-24 14:03   ` Rob Herring
  2025-09-23 20:12 ` [PATCH v2 2/4] dt-bindings: PCI: mediatek: Convert to YAML schema Christian Marangi
                   ` (2 subsequent siblings)
  3 siblings, 2 replies; 8+ messages in thread
From: Christian Marangi @ 2025-09-23 20:12 UTC (permalink / raw)
  To: Michael Turquette, Stephen Boyd, Rob Herring, Krzysztof Kozlowski,
	Conor Dooley, Matthias Brugger, AngeloGioacchino Del Regno,
	Ryder Lee, Jianjun Wang, Bjorn Helgaas, Lorenzo Pieralisi,
	Krzysztof Wilczyński, Manivannan Sadhasivam,
	Christian Marangi, linux-clk, devicetree, linux-kernel,
	linux-arm-kernel, linux-mediatek, linux-pci, upstream

While converting the hifsys to YAML schema, the "syscon" compatible was
dropped for the mt7623 and the mt2701 compatible.

Add back the compatible to mute DTBs warning on "make dtbs_check" and
reflect real state of the .dtsi.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
---
 .../devicetree/bindings/clock/mediatek,mt2701-hifsys.yaml | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/clock/mediatek,mt2701-hifsys.yaml b/Documentation/devicetree/bindings/clock/mediatek,mt2701-hifsys.yaml
index 9e7c725093aa..aa3345ea8283 100644
--- a/Documentation/devicetree/bindings/clock/mediatek,mt2701-hifsys.yaml
+++ b/Documentation/devicetree/bindings/clock/mediatek,mt2701-hifsys.yaml
@@ -16,13 +16,15 @@ maintainers:
 properties:
   compatible:
     oneOf:
-      - enum:
-          - mediatek,mt2701-hifsys
-          - mediatek,mt7622-hifsys
+      - items:
+          - const: mediatek,mt2701-hifsys
+          - const: syscon
+      - const: mediatek,mt7622-hifsys
       - items:
           - enum:
               - mediatek,mt7623-hifsys
           - const: mediatek,mt2701-hifsys
+          - const: syscon
 
   reg:
     maxItems: 1
-- 
2.51.0


^ permalink raw reply related	[flat|nested] 8+ messages in thread

* [PATCH v2 2/4] dt-bindings: PCI: mediatek: Convert to YAML schema
  2025-09-23 20:12 [PATCH v2 0/4] PCI: mediatek: add support AN7583 + YAML rework Christian Marangi
  2025-09-23 20:12 ` [PATCH v2 1/4] dt-bindings: clock: mediatek: Fix wrong compatible list for hifsys YAML Christian Marangi
@ 2025-09-23 20:12 ` Christian Marangi
  2025-09-23 20:12 ` [PATCH v2 3/4] dt-bindings: PCI: mediatek: Add support for Airoha AN7583 Christian Marangi
  2025-09-23 20:12 ` [PATCH v2 4/4] PCI: mediatek: add support for Airoha AN7583 SoC Christian Marangi
  3 siblings, 0 replies; 8+ messages in thread
From: Christian Marangi @ 2025-09-23 20:12 UTC (permalink / raw)
  To: Michael Turquette, Stephen Boyd, Rob Herring, Krzysztof Kozlowski,
	Conor Dooley, Matthias Brugger, AngeloGioacchino Del Regno,
	Ryder Lee, Jianjun Wang, Bjorn Helgaas, Lorenzo Pieralisi,
	Krzysztof Wilczyński, Manivannan Sadhasivam,
	Christian Marangi, linux-clk, devicetree, linux-kernel,
	linux-arm-kernel, linux-mediatek, linux-pci, upstream

Convert the PCI mediatek Documentation to YAML schema to enable
validation of the supported GEN1/2 Mediatek PCIe controller.

While converting, lots of cleanup were done from the .txt with better
specifying what is supported by the various PCIe controller variant and
drop of redundant info that are part of the standard PCIe Host Bridge
schema.

To reduce schema complexity the .txt is split in 2 YAML, one for
mt7623/mt2701 and the other for every other compatible.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
---
 .../bindings/pci/mediatek-pcie-mt7623.yaml    | 173 ++++++++
 .../devicetree/bindings/pci/mediatek-pcie.txt | 289 -------------
 .../bindings/pci/mediatek-pcie.yaml           | 404 ++++++++++++++++++
 3 files changed, 577 insertions(+), 289 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/pci/mediatek-pcie-mt7623.yaml
 delete mode 100644 Documentation/devicetree/bindings/pci/mediatek-pcie.txt
 create mode 100644 Documentation/devicetree/bindings/pci/mediatek-pcie.yaml

diff --git a/Documentation/devicetree/bindings/pci/mediatek-pcie-mt7623.yaml b/Documentation/devicetree/bindings/pci/mediatek-pcie-mt7623.yaml
new file mode 100644
index 000000000000..2f201c84e29a
--- /dev/null
+++ b/Documentation/devicetree/bindings/pci/mediatek-pcie-mt7623.yaml
@@ -0,0 +1,173 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pci/mediatek-pcie-mt7623.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: PCIe controller on MediaTek SoCs
+
+maintainers:
+  - Christian Marangi <ansuelsmth@gmail.com>
+
+properties:
+  compatible:
+    enum:
+      - mediatek,mt2701-pcie
+      - mediatek,mt7623-pcie
+
+  reg:
+    minItems: 4
+    maxItems: 4
+
+  reg-names:
+    items:
+      - const: subsys
+      - const: port0
+      - const: port1
+      - const: port2
+
+  clocks:
+    minItems: 4
+    maxItems: 4
+
+  clock-names:
+    items:
+      - const: free_ck
+      - const: sys_ck0
+      - const: sys_ck1
+      - const: sys_ck2
+
+  resets:
+    minItems: 3
+    maxItems: 3
+
+  reset-names:
+    items:
+      - const: pcie-rst0
+      - const: pcie-rst1
+      - const: pcie-rst2
+
+  phys:
+    minItems: 3
+    maxItems: 3
+
+  phy-names:
+    items:
+      - const: pcie-phy0
+      - const: pcie-phy1
+      - const: pcie-phy2
+
+  power-domains:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - ranges
+  - clocks
+  - clock-names
+  - '#interrupt-cells'
+  - resets
+  - reset-names
+  - phys
+  - phy-names
+  - power-domains
+  - pcie@0,0
+  - pcie@1,0
+  - pcie@2,0
+
+allOf:
+  - $ref: /schemas/pci/pci-host-bridge.yaml#
+
+unevaluatedProperties: false
+
+examples:
+  # MT7623
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/clock/mt2701-clk.h>
+    #include <dt-bindings/reset/mt2701-resets.h>
+    #include <dt-bindings/phy/phy.h>
+    #include <dt-bindings/power/mt2701-power.h>
+
+    soc {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        hifsys: syscon@1a000000 {
+            compatible = "mediatek,mt7623-hifsys",
+                        "mediatek,mt2701-hifsys",
+                        "syscon";
+            reg = <0 0x1a000000 0 0x1000>;
+            #clock-cells = <1>;
+            #reset-cells = <1>;
+        };
+
+        pcie@1a140000 {
+            compatible = "mediatek,mt7623-pcie";
+            device_type = "pci";
+            reg = <0 0x1a140000 0 0x1000>, /* PCIe shared registers */
+                  <0 0x1a142000 0 0x1000>, /* Port0 registers */
+                  <0 0x1a143000 0 0x1000>, /* Port1 registers */
+                  <0 0x1a144000 0 0x1000>; /* Port2 registers */
+            reg-names = "subsys", "port0", "port1", "port2";
+            #address-cells = <3>;
+            #size-cells = <2>;
+            #interrupt-cells = <1>;
+            interrupt-map-mask = <0xf800 0 0 0>;
+            interrupt-map = <0x0000 0 0 0 &sysirq GIC_SPI 193 IRQ_TYPE_LEVEL_LOW>,
+                            <0x0800 0 0 0 &sysirq GIC_SPI 194 IRQ_TYPE_LEVEL_LOW>,
+                            <0x1000 0 0 0 &sysirq GIC_SPI 195 IRQ_TYPE_LEVEL_LOW>;
+            clocks = <&topckgen CLK_TOP_ETHIF_SEL>,
+                    <&hifsys CLK_HIFSYS_PCIE0>,
+                    <&hifsys CLK_HIFSYS_PCIE1>,
+                    <&hifsys CLK_HIFSYS_PCIE2>;
+            clock-names = "free_ck", "sys_ck0", "sys_ck1", "sys_ck2";
+            resets = <&hifsys MT2701_HIFSYS_PCIE0_RST>,
+                     <&hifsys MT2701_HIFSYS_PCIE1_RST>,
+                     <&hifsys MT2701_HIFSYS_PCIE2_RST>;
+            reset-names = "pcie-rst0", "pcie-rst1", "pcie-rst2";
+            phys = <&pcie0_phy PHY_TYPE_PCIE>, <&pcie1_phy PHY_TYPE_PCIE>,
+                   <&pcie2_phy PHY_TYPE_PCIE>;
+            phy-names = "pcie-phy0", "pcie-phy1", "pcie-phy2";
+            power-domains = <&scpsys MT2701_POWER_DOMAIN_HIF>;
+            bus-range = <0x00 0xff>;
+            ranges = <0x81000000 0 0x1a160000 0 0x1a160000 0 0x00010000	/* I/O space */
+                      0x83000000 0 0x60000000 0 0x60000000 0 0x10000000>;	/* memory space */
+
+            pcie@0,0 {
+                device_type = "pci";
+                reg = <0x0000 0 0 0 0>;
+                #address-cells = <3>;
+                #size-cells = <2>;
+                #interrupt-cells = <1>;
+                interrupt-map-mask = <0 0 0 0>;
+                interrupt-map = <0 0 0 0 &sysirq GIC_SPI 193 IRQ_TYPE_LEVEL_LOW>;
+                ranges;
+            };
+
+            pcie@1,0 {
+                device_type = "pci";
+                reg = <0x0800 0 0 0 0>;
+                #address-cells = <3>;
+                #size-cells = <2>;
+                #interrupt-cells = <1>;
+                interrupt-map-mask = <0 0 0 0>;
+                interrupt-map = <0 0 0 0 &sysirq GIC_SPI 194 IRQ_TYPE_LEVEL_LOW>;
+                ranges;
+            };
+
+            pcie@2,0 {
+                device_type = "pci";
+                reg = <0x1000 0 0 0 0>;
+                #address-cells = <3>;
+                #size-cells = <2>;
+                #interrupt-cells = <1>;
+                interrupt-map-mask = <0 0 0 0>;
+                interrupt-map = <0 0 0 0 &sysirq GIC_SPI 195 IRQ_TYPE_LEVEL_LOW>;
+                ranges;
+            };
+        };
+    };
diff --git a/Documentation/devicetree/bindings/pci/mediatek-pcie.txt b/Documentation/devicetree/bindings/pci/mediatek-pcie.txt
deleted file mode 100644
index 684227522267..000000000000
--- a/Documentation/devicetree/bindings/pci/mediatek-pcie.txt
+++ /dev/null
@@ -1,289 +0,0 @@
-MediaTek Gen2 PCIe controller
-
-Required properties:
-- compatible: Should contain one of the following strings:
-	"mediatek,mt2701-pcie"
-	"mediatek,mt2712-pcie"
-	"mediatek,mt7622-pcie"
-	"mediatek,mt7623-pcie"
-	"mediatek,mt7629-pcie"
-	"airoha,en7523-pcie"
-- device_type: Must be "pci"
-- reg: Base addresses and lengths of the root ports.
-- reg-names: Names of the above areas to use during resource lookup.
-- #address-cells: Address representation for root ports (must be 3)
-- #size-cells: Size representation for root ports (must be 2)
-- clocks: Must contain an entry for each entry in clock-names.
-  See ../clocks/clock-bindings.txt for details.
-- clock-names:
-  Mandatory entries:
-   - sys_ckN :transaction layer and data link layer clock
-  Required entries for MT2701/MT7623:
-   - free_ck :for reference clock of PCIe subsys
-  Required entries for MT2712/MT7622:
-   - ahb_ckN :AHB slave interface operating clock for CSR access and RC
-	      initiated MMIO access
-  Required entries for MT7622:
-   - axi_ckN :application layer MMIO channel operating clock
-   - aux_ckN :pe2_mac_bridge and pe2_mac_core operating clock when
-	      pcie_mac_ck/pcie_pipe_ck is turned off
-   - obff_ckN :OBFF functional block operating clock
-   - pipe_ckN :LTSSM and PHY/MAC layer operating clock
-  where N starting from 0 to one less than the number of root ports.
-- phys: List of PHY specifiers (used by generic PHY framework).
-- phy-names : Must be "pcie-phy0", "pcie-phy1", "pcie-phyN".. based on the
-  number of PHYs as specified in *phys* property.
-- power-domains: A phandle and power domain specifier pair to the power domain
-  which is responsible for collapsing and restoring power to the peripheral.
-- bus-range: Range of bus numbers associated with this controller.
-- ranges: Ranges for the PCI memory and I/O regions.
-
-Required properties for MT7623/MT2701:
-- #interrupt-cells: Size representation for interrupts (must be 1)
-- interrupt-map-mask and interrupt-map: Standard PCI IRQ mapping properties
-  Please refer to the standard PCI bus binding document for a more detailed
-  explanation.
-- resets: Must contain an entry for each entry in reset-names.
-  See ../reset/reset.txt for details.
-- reset-names: Must be "pcie-rst0", "pcie-rst1", "pcie-rstN".. based on the
-  number of root ports.
-
-Required properties for MT2712/MT7622/MT7629:
--interrupts: A list of interrupt outputs of the controller, must have one
-	     entry for each PCIe port
-- interrupt-names: Must include the following entries:
-	- "pcie_irq": The interrupt that is asserted when an MSI/INTX is received
-- linux,pci-domain: PCI domain ID. Should be unique for each host controller
-
-In addition, the device tree node must have sub-nodes describing each
-PCIe port interface, having the following mandatory properties:
-
-Required properties:
-- device_type: Must be "pci"
-- reg: Only the first four bytes are used to refer to the correct bus number
-  and device number.
-- #address-cells: Must be 3
-- #size-cells: Must be 2
-- #interrupt-cells: Must be 1
-- interrupt-map-mask and interrupt-map: Standard PCI IRQ mapping properties
-  Please refer to the standard PCI bus binding document for a more detailed
-  explanation.
-- ranges: Sub-ranges distributed from the PCIe controller node. An empty
-  property is sufficient.
-
-Examples for MT7623:
-
-	hifsys: syscon@1a000000 {
-		compatible = "mediatek,mt7623-hifsys",
-			     "mediatek,mt2701-hifsys",
-			     "syscon";
-		reg = <0 0x1a000000 0 0x1000>;
-		#clock-cells = <1>;
-		#reset-cells = <1>;
-	};
-
-	pcie: pcie@1a140000 {
-		compatible = "mediatek,mt7623-pcie";
-		device_type = "pci";
-		reg = <0 0x1a140000 0 0x1000>, /* PCIe shared registers */
-		      <0 0x1a142000 0 0x1000>, /* Port0 registers */
-		      <0 0x1a143000 0 0x1000>, /* Port1 registers */
-		      <0 0x1a144000 0 0x1000>; /* Port2 registers */
-		reg-names = "subsys", "port0", "port1", "port2";
-		#address-cells = <3>;
-		#size-cells = <2>;
-		#interrupt-cells = <1>;
-		interrupt-map-mask = <0xf800 0 0 0>;
-		interrupt-map = <0x0000 0 0 0 &sysirq GIC_SPI 193 IRQ_TYPE_LEVEL_LOW>,
-				<0x0800 0 0 0 &sysirq GIC_SPI 194 IRQ_TYPE_LEVEL_LOW>,
-				<0x1000 0 0 0 &sysirq GIC_SPI 195 IRQ_TYPE_LEVEL_LOW>;
-		clocks = <&topckgen CLK_TOP_ETHIF_SEL>,
-			 <&hifsys CLK_HIFSYS_PCIE0>,
-			 <&hifsys CLK_HIFSYS_PCIE1>,
-			 <&hifsys CLK_HIFSYS_PCIE2>;
-		clock-names = "free_ck", "sys_ck0", "sys_ck1", "sys_ck2";
-		resets = <&hifsys MT2701_HIFSYS_PCIE0_RST>,
-			 <&hifsys MT2701_HIFSYS_PCIE1_RST>,
-			 <&hifsys MT2701_HIFSYS_PCIE2_RST>;
-		reset-names = "pcie-rst0", "pcie-rst1", "pcie-rst2";
-		phys = <&pcie0_phy PHY_TYPE_PCIE>, <&pcie1_phy PHY_TYPE_PCIE>,
-		       <&pcie2_phy PHY_TYPE_PCIE>;
-		phy-names = "pcie-phy0", "pcie-phy1", "pcie-phy2";
-		power-domains = <&scpsys MT2701_POWER_DOMAIN_HIF>;
-		bus-range = <0x00 0xff>;
-		ranges = <0x81000000 0 0x1a160000 0 0x1a160000 0 0x00010000	/* I/O space */
-			  0x83000000 0 0x60000000 0 0x60000000 0 0x10000000>;	/* memory space */
-
-		pcie@0,0 {
-			reg = <0x0000 0 0 0 0>;
-			#address-cells = <3>;
-			#size-cells = <2>;
-			#interrupt-cells = <1>;
-			interrupt-map-mask = <0 0 0 0>;
-			interrupt-map = <0 0 0 0 &sysirq GIC_SPI 193 IRQ_TYPE_LEVEL_LOW>;
-			ranges;
-		};
-
-		pcie@1,0 {
-			reg = <0x0800 0 0 0 0>;
-			#address-cells = <3>;
-			#size-cells = <2>;
-			#interrupt-cells = <1>;
-			interrupt-map-mask = <0 0 0 0>;
-			interrupt-map = <0 0 0 0 &sysirq GIC_SPI 194 IRQ_TYPE_LEVEL_LOW>;
-			ranges;
-		};
-
-		pcie@2,0 {
-			reg = <0x1000 0 0 0 0>;
-			#address-cells = <3>;
-			#size-cells = <2>;
-			#interrupt-cells = <1>;
-			interrupt-map-mask = <0 0 0 0>;
-			interrupt-map = <0 0 0 0 &sysirq GIC_SPI 195 IRQ_TYPE_LEVEL_LOW>;
-			ranges;
-		};
-	};
-
-Examples for MT2712:
-
-	pcie1: pcie@112ff000 {
-		compatible = "mediatek,mt2712-pcie";
-		device_type = "pci";
-		reg = <0 0x112ff000 0 0x1000>;
-		reg-names = "port1";
-		linux,pci-domain = <1>;
-		#address-cells = <3>;
-		#size-cells = <2>;
-		interrupts = <GIC_SPI 117 IRQ_TYPE_LEVEL_HIGH>;
-		interrupt-names = "pcie_irq";
-		clocks = <&topckgen CLK_TOP_PE2_MAC_P1_SEL>,
-			 <&pericfg CLK_PERI_PCIE1>;
-		clock-names = "sys_ck1", "ahb_ck1";
-		phys = <&u3port1 PHY_TYPE_PCIE>;
-		phy-names = "pcie-phy1";
-		bus-range = <0x00 0xff>;
-		ranges = <0x82000000 0 0x11400000  0x0 0x11400000  0 0x300000>;
-		status = "disabled";
-
-		#interrupt-cells = <1>;
-		interrupt-map-mask = <0 0 0 7>;
-		interrupt-map = <0 0 0 1 &pcie_intc1 0>,
-				<0 0 0 2 &pcie_intc1 1>,
-				<0 0 0 3 &pcie_intc1 2>,
-				<0 0 0 4 &pcie_intc1 3>;
-		pcie_intc1: interrupt-controller {
-			interrupt-controller;
-			#address-cells = <0>;
-			#interrupt-cells = <1>;
-		};
-	};
-
-	pcie0: pcie@11700000 {
-		compatible = "mediatek,mt2712-pcie";
-		device_type = "pci";
-		reg = <0 0x11700000 0 0x1000>;
-		reg-names = "port0";
-		linux,pci-domain = <0>;
-		#address-cells = <3>;
-		#size-cells = <2>;
-		interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>;
-		interrupt-names = "pcie_irq";
-		clocks = <&topckgen CLK_TOP_PE2_MAC_P0_SEL>,
-			 <&pericfg CLK_PERI_PCIE0>;
-		clock-names = "sys_ck0", "ahb_ck0";
-		phys = <&u3port0 PHY_TYPE_PCIE>;
-		phy-names = "pcie-phy0";
-		bus-range = <0x00 0xff>;
-		ranges = <0x82000000 0 0x20000000 0x0 0x20000000 0 0x10000000>;
-		status = "disabled";
-
-		#interrupt-cells = <1>;
-		interrupt-map-mask = <0 0 0 7>;
-		interrupt-map = <0 0 0 1 &pcie_intc0 0>,
-				<0 0 0 2 &pcie_intc0 1>,
-				<0 0 0 3 &pcie_intc0 2>,
-				<0 0 0 4 &pcie_intc0 3>;
-		pcie_intc0: interrupt-controller {
-			interrupt-controller;
-			#address-cells = <0>;
-			#interrupt-cells = <1>;
-		};
-	};
-
-Examples for MT7622:
-
-	pcie0: pcie@1a143000 {
-		compatible = "mediatek,mt7622-pcie";
-		device_type = "pci";
-		reg = <0 0x1a143000 0 0x1000>;
-		reg-names = "port0";
-		linux,pci-domain = <0>;
-		#address-cells = <3>;
-		#size-cells = <2>;
-		interrupts = <GIC_SPI 228 IRQ_TYPE_LEVEL_LOW>;
-		interrupt-names = "pcie_irq";
-		clocks = <&pciesys CLK_PCIE_P0_MAC_EN>,
-			 <&pciesys CLK_PCIE_P0_AHB_EN>,
-			 <&pciesys CLK_PCIE_P0_AUX_EN>,
-			 <&pciesys CLK_PCIE_P0_AXI_EN>,
-			 <&pciesys CLK_PCIE_P0_OBFF_EN>,
-			 <&pciesys CLK_PCIE_P0_PIPE_EN>;
-		clock-names = "sys_ck0", "ahb_ck0", "aux_ck0",
-			      "axi_ck0", "obff_ck0", "pipe_ck0";
-
-		power-domains = <&scpsys MT7622_POWER_DOMAIN_HIF0>;
-		bus-range = <0x00 0xff>;
-		ranges = <0x82000000 0 0x20000000  0x0 0x20000000  0 0x8000000>;
-		status = "disabled";
-
-		#interrupt-cells = <1>;
-		interrupt-map-mask = <0 0 0 7>;
-		interrupt-map = <0 0 0 1 &pcie_intc0 0>,
-				<0 0 0 2 &pcie_intc0 1>,
-				<0 0 0 3 &pcie_intc0 2>,
-				<0 0 0 4 &pcie_intc0 3>;
-		pcie_intc0: interrupt-controller {
-			interrupt-controller;
-			#address-cells = <0>;
-			#interrupt-cells = <1>;
-		};
-	};
-
-	pcie1: pcie@1a145000 {
-		compatible = "mediatek,mt7622-pcie";
-		device_type = "pci";
-		reg = <0 0x1a145000 0 0x1000>;
-		reg-names = "port1";
-		linux,pci-domain = <1>;
-		#address-cells = <3>;
-		#size-cells = <2>;
-		interrupts = <GIC_SPI 229 IRQ_TYPE_LEVEL_LOW>;
-		interrupt-names = "pcie_irq";
-		clocks = <&pciesys CLK_PCIE_P1_MAC_EN>,
-			 /* designer has connect RC1 with p0_ahb clock */
-			 <&pciesys CLK_PCIE_P0_AHB_EN>,
-			 <&pciesys CLK_PCIE_P1_AUX_EN>,
-			 <&pciesys CLK_PCIE_P1_AXI_EN>,
-			 <&pciesys CLK_PCIE_P1_OBFF_EN>,
-			 <&pciesys CLK_PCIE_P1_PIPE_EN>;
-		clock-names = "sys_ck1", "ahb_ck1", "aux_ck1",
-			      "axi_ck1", "obff_ck1", "pipe_ck1";
-
-		power-domains = <&scpsys MT7622_POWER_DOMAIN_HIF0>;
-		bus-range = <0x00 0xff>;
-		ranges = <0x82000000 0 0x28000000  0x0 0x28000000  0 0x8000000>;
-		status = "disabled";
-
-		#interrupt-cells = <1>;
-		interrupt-map-mask = <0 0 0 7>;
-		interrupt-map = <0 0 0 1 &pcie_intc1 0>,
-				<0 0 0 2 &pcie_intc1 1>,
-				<0 0 0 3 &pcie_intc1 2>,
-				<0 0 0 4 &pcie_intc1 3>;
-		pcie_intc1: interrupt-controller {
-			interrupt-controller;
-			#address-cells = <0>;
-			#interrupt-cells = <1>;
-		};
-	};
diff --git a/Documentation/devicetree/bindings/pci/mediatek-pcie.yaml b/Documentation/devicetree/bindings/pci/mediatek-pcie.yaml
new file mode 100644
index 000000000000..e3afedb77a01
--- /dev/null
+++ b/Documentation/devicetree/bindings/pci/mediatek-pcie.yaml
@@ -0,0 +1,404 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pci/mediatek-pcie.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: PCIe controller on MediaTek SoCs
+
+maintainers:
+  - Christian Marangi <ansuelsmth@gmail.com>
+
+properties:
+  compatible:
+    oneOf:
+      - enum:
+          - mediatek,mt2712-pcie
+          - mediatek,mt7622-pcie
+          - mediatek,mt7629-pcie
+      - items:
+          - const: airoha,en7523-pcie
+          - const: mediatek,mt7622-pcie
+
+  reg:
+    minItems: 1
+    maxItems: 4
+
+  reg-names:
+    minItems: 1
+    maxItems: 4
+
+  clocks:
+    minItems: 1
+    maxItems: 6
+
+  clock-names:
+    minItems: 1
+    maxItems: 6
+
+  interrupts:
+    maxItems: 1
+
+  interrupt-names:
+    const: pcie_irq
+
+  resets:
+    minItems: 1
+    maxItems: 3
+
+  reset-names:
+    minItems: 1
+    maxItems: 3
+
+  phys:
+    minItems: 1
+    maxItems: 3
+
+  phy-names:
+    minItems: 1
+    maxItems: 3
+
+  power-domains:
+    maxItems: 1
+
+  '#interrupt-cells':
+    const: 1
+
+  interrupt-controller:
+    description: Interrupt controller node for handling legacy PCI interrupts.
+    type: object
+    properties:
+      '#address-cells':
+        const: 0
+      '#interrupt-cells':
+        const: 1
+      interrupt-controller: true
+
+    required:
+      - '#address-cells'
+      - '#interrupt-cells'
+      - interrupt-controller
+
+    additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - ranges
+  - clocks
+  - clock-names
+  - '#interrupt-cells'
+  - interrupts
+  - interrupt-names
+  - interrupt-controller
+
+allOf:
+  - $ref: /schemas/pci/pci-host-bridge.yaml#
+
+  - if:
+      properties:
+        compatible:
+          const: mediatek,mt2712-pcie
+    then:
+      properties:
+        reg:
+          maxItems: 1
+
+        reg-names:
+          items:
+            - enum: [ port0, port1 ]
+
+        clocks:
+          minItems: 2
+          maxItems: 2
+
+        clock-names:
+          items:
+            - enum: [ sys_ck0, sys_ck1 ]
+            - enum: [ ahb_ck0, ahb_ck1 ]
+
+        reset: false
+
+        reset-names: false
+
+        phys:
+          maxItems: 1
+
+        phy-names:
+          items:
+            - enum: [ pcie-phy0, pcie-phy1 ]
+
+        power-domains: false
+
+      required:
+        - phys
+        - phy-names
+
+  - if:
+      properties:
+        compatible:
+          const: mediatek,mt7622-pcie
+    then:
+      properties:
+        reg:
+          maxItems: 1
+
+        reg-names:
+          items:
+            - enum: [ port0, port1 ]
+
+        clocks:
+          minItems: 6
+          maxItems: 6
+
+        clock-names:
+          items:
+            - enum: [ sys_ck0, sys_ck1 ]
+            - enum: [ ahb_ck0, ahb_ck1 ]
+            - enum: [ aux_ck0, aux_ck1 ]
+            - enum: [ axi_ck0, axi_ck1 ]
+            - enum: [ obff_ck0, obff_ck1 ]
+            - enum: [ pipe_ck0, pipe_ck1 ]
+
+        reset: false
+
+        reset-names: false
+
+        phys: false
+
+        phy-names: false
+
+      required:
+        - power-domains
+
+  - if:
+      properties:
+        compatible:
+          const: mediatek,mt7629-pcie
+    then:
+      properties:
+        reg:
+          maxItems: 1
+
+        reg-names:
+          items:
+            - enum: [ port0, port1 ]
+
+        clocks:
+          minItems: 6
+          maxItems: 6
+
+        clock-names:
+          items:
+            - enum: [ sys_ck0, sys_ck1 ]
+            - enum: [ ahb_ck0, ahb_ck1 ]
+            - enum: [ aux_ck0, aux_ck1 ]
+            - enum: [ axi_ck0, axi_ck1 ]
+            - enum: [ obff_ck0, obff_ck1 ]
+            - enum: [ pipe_ck0, pipe_ck1 ]
+
+        reset: false
+
+        reset-names: false
+
+        phys:
+          maxItems: 1
+
+        phy-names:
+          items:
+            - enum: [ pcie-phy0, pcie-phy1 ]
+
+      required:
+        - power-domains
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: airoha,en7523-pcie
+    then:
+      properties:
+        reg:
+          maxItems: 1
+
+        reg-names:
+          items:
+            - enum: [ port0, port1 ]
+
+        clocks:
+          maxItems: 1
+
+        clock-names:
+          items:
+            - enum: [ sys_ck0, sys_ck1 ]
+
+        reset: false
+
+        reset-names: false
+
+        phys: false
+
+        phy-names: false
+
+        power-domain: false
+
+unevaluatedProperties: false
+
+examples:
+  # MT2712
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/phy/phy.h>
+
+    soc_1 {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        pcie@112ff000 {
+            compatible = "mediatek,mt2712-pcie";
+            device_type = "pci";
+            reg = <0 0x112ff000 0 0x1000>;
+            reg-names = "port1";
+            linux,pci-domain = <1>;
+            #address-cells = <3>;
+            #size-cells = <2>;
+            interrupts = <GIC_SPI 117 IRQ_TYPE_LEVEL_HIGH>;
+            interrupt-names = "pcie_irq";
+            clocks = <&topckgen>, /* CLK_TOP_PE2_MAC_P1_SEL */
+                     <&pericfg>; /* CLK_PERI_PCIE1 */
+            clock-names = "sys_ck1", "ahb_ck1";
+            phys = <&u3port1 PHY_TYPE_PCIE>;
+            phy-names = "pcie-phy1";
+            bus-range = <0x00 0xff>;
+            ranges = <0x82000000 0 0x11400000  0x0 0x11400000  0 0x300000>;
+
+            #interrupt-cells = <1>;
+            interrupt-map-mask = <0 0 0 7>;
+            interrupt-map = <0 0 0 1 &pcie_intc1 0>,
+                            <0 0 0 2 &pcie_intc1 1>,
+                            <0 0 0 3 &pcie_intc1 2>,
+                            <0 0 0 4 &pcie_intc1 3>;
+            pcie_intc1: interrupt-controller {
+                interrupt-controller;
+                #address-cells = <0>;
+                #interrupt-cells = <1>;
+            };
+        };
+
+        pcie@11700000 {
+            compatible = "mediatek,mt2712-pcie";
+            device_type = "pci";
+            reg = <0 0x11700000 0 0x1000>;
+            reg-names = "port0";
+            linux,pci-domain = <0>;
+            #address-cells = <3>;
+            #size-cells = <2>;
+            interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>;
+            interrupt-names = "pcie_irq";
+            clocks = <&topckgen>, /* CLK_TOP_PE2_MAC_P0_SEL */
+                     <&pericfg>; /* CLK_PERI_PCIE0 */
+            clock-names = "sys_ck0", "ahb_ck0";
+            phys = <&u3port0 PHY_TYPE_PCIE>;
+            phy-names = "pcie-phy0";
+            bus-range = <0x00 0xff>;
+            ranges = <0x82000000 0 0x20000000 0x0 0x20000000 0 0x10000000>;
+
+            #interrupt-cells = <1>;
+            interrupt-map-mask = <0 0 0 7>;
+            interrupt-map = <0 0 0 1 &pcie_intc0 0>,
+                            <0 0 0 2 &pcie_intc0 1>,
+                            <0 0 0 3 &pcie_intc0 2>,
+                            <0 0 0 4 &pcie_intc0 3>;
+            pcie_intc0: interrupt-controller {
+                interrupt-controller;
+                #address-cells = <0>;
+                #interrupt-cells = <1>;
+            };
+        };
+    };
+
+  # MT7622
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/power/mt7622-power.h>
+
+    soc_2 {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        pcie@1a143000 {
+            compatible = "mediatek,mt7622-pcie";
+            device_type = "pci";
+            reg = <0 0x1a143000 0 0x1000>;
+            reg-names = "port0";
+            linux,pci-domain = <0>;
+            #address-cells = <3>;
+            #size-cells = <2>;
+            interrupts = <GIC_SPI 228 IRQ_TYPE_LEVEL_LOW>;
+            interrupt-names = "pcie_irq";
+            clocks = <&pciesys>, /* CLK_PCIE_P0_MAC_EN */
+                     <&pciesys>, /* CLK_PCIE_P0_AHB_EN */
+                     <&pciesys>, /* CLK_PCIE_P0_AUX_EN */
+                     <&pciesys>, /* CLK_PCIE_P0_AXI_EN */
+                     <&pciesys>, /* CLK_PCIE_P0_OBFF_EN */
+                     <&pciesys>; /* CLK_PCIE_P0_PIPE_EN */
+            clock-names = "sys_ck0", "ahb_ck0", "aux_ck0",
+                          "axi_ck0", "obff_ck0", "pipe_ck0";
+
+            power-domains = <&scpsys MT7622_POWER_DOMAIN_HIF0>;
+            bus-range = <0x00 0xff>;
+            ranges = <0x82000000 0 0x20000000  0x0 0x20000000  0 0x8000000>;
+
+            #interrupt-cells = <1>;
+            interrupt-map-mask = <0 0 0 7>;
+            interrupt-map = <0 0 0 1 &pcie_intc0_1 0>,
+                            <0 0 0 2 &pcie_intc0_1 1>,
+                            <0 0 0 3 &pcie_intc0_1 2>,
+                            <0 0 0 4 &pcie_intc0_1 3>;
+            pcie_intc0_1: interrupt-controller {
+                interrupt-controller;
+                #address-cells = <0>;
+                #interrupt-cells = <1>;
+            };
+        };
+
+        pcie@1a145000 {
+            compatible = "mediatek,mt7622-pcie";
+            device_type = "pci";
+            reg = <0 0x1a145000 0 0x1000>;
+            reg-names = "port1";
+            linux,pci-domain = <1>;
+            #address-cells = <3>;
+            #size-cells = <2>;
+            interrupts = <GIC_SPI 229 IRQ_TYPE_LEVEL_LOW>;
+            interrupt-names = "pcie_irq";
+            clocks = <&pciesys>, /* CLK_PCIE_P1_MAC_EN */
+                     /* designer has connect RC1 with p0_ahb clock */
+                     <&pciesys>, /* CLK_PCIE_P0_AHB_EN */
+                     <&pciesys>, /* CLK_PCIE_P1_AUX_EN */
+                     <&pciesys>, /* CLK_PCIE_P1_AXI_EN */
+                     <&pciesys>, /* CLK_PCIE_P1_OBFF_EN */
+                     <&pciesys>; /* CLK_PCIE_P1_PIPE_EN */
+            clock-names = "sys_ck1", "ahb_ck1", "aux_ck1",
+                          "axi_ck1", "obff_ck1", "pipe_ck1";
+
+            power-domains = <&scpsys MT7622_POWER_DOMAIN_HIF0>;
+            bus-range = <0x00 0xff>;
+            ranges = <0x82000000 0 0x28000000  0x0 0x28000000  0 0x8000000>;
+
+            #interrupt-cells = <1>;
+            interrupt-map-mask = <0 0 0 7>;
+            interrupt-map = <0 0 0 1 &pcie_intc1_1 0>,
+                            <0 0 0 2 &pcie_intc1_1 1>,
+                            <0 0 0 3 &pcie_intc1_1 2>,
+                            <0 0 0 4 &pcie_intc1_1 3>;
+            pcie_intc1_1: interrupt-controller {
+                interrupt-controller;
+                #address-cells = <0>;
+                #interrupt-cells = <1>;
+            };
+        };
+    };
-- 
2.51.0


^ permalink raw reply related	[flat|nested] 8+ messages in thread

* [PATCH v2 3/4] dt-bindings: PCI: mediatek: Add support for Airoha AN7583
  2025-09-23 20:12 [PATCH v2 0/4] PCI: mediatek: add support AN7583 + YAML rework Christian Marangi
  2025-09-23 20:12 ` [PATCH v2 1/4] dt-bindings: clock: mediatek: Fix wrong compatible list for hifsys YAML Christian Marangi
  2025-09-23 20:12 ` [PATCH v2 2/4] dt-bindings: PCI: mediatek: Convert to YAML schema Christian Marangi
@ 2025-09-23 20:12 ` Christian Marangi
  2025-09-23 20:12 ` [PATCH v2 4/4] PCI: mediatek: add support for Airoha AN7583 SoC Christian Marangi
  3 siblings, 0 replies; 8+ messages in thread
From: Christian Marangi @ 2025-09-23 20:12 UTC (permalink / raw)
  To: Michael Turquette, Stephen Boyd, Rob Herring, Krzysztof Kozlowski,
	Conor Dooley, Matthias Brugger, AngeloGioacchino Del Regno,
	Ryder Lee, Jianjun Wang, Bjorn Helgaas, Lorenzo Pieralisi,
	Krzysztof Wilczyński, Manivannan Sadhasivam,
	Christian Marangi, linux-clk, devicetree, linux-kernel,
	linux-arm-kernel, linux-mediatek, linux-pci, upstream

Introduce Airoha AN7583 SoC compatible in mediatek PCIe controller
binding.

Similar to GEN3, the Airoha AN7583 GEN2 PCIe controller require the
PBUS csr property to permit the correct functionality of the PCIe
controller.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
---
 .../bindings/pci/mediatek-pcie.yaml           | 110 ++++++++++++++++++
 1 file changed, 110 insertions(+)

diff --git a/Documentation/devicetree/bindings/pci/mediatek-pcie.yaml b/Documentation/devicetree/bindings/pci/mediatek-pcie.yaml
index e3afedb77a01..46000049a6c5 100644
--- a/Documentation/devicetree/bindings/pci/mediatek-pcie.yaml
+++ b/Documentation/devicetree/bindings/pci/mediatek-pcie.yaml
@@ -13,6 +13,7 @@ properties:
   compatible:
     oneOf:
       - enum:
+          - airoha,an7583-pcie
           - mediatek,mt2712-pcie
           - mediatek,mt7622-pcie
           - mediatek,mt7629-pcie
@@ -61,6 +62,17 @@ properties:
   power-domains:
     maxItems: 1
 
+  mediatek,pbus-csr:
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+    items:
+      - items:
+          - description: phandle to pbus-csr syscon
+          - description: offset of pbus-csr base address register
+          - description: offset of pbus-csr base address mask register
+    description:
+      Phandle with two arguments to the syscon node used to detect if
+      a given address is accessible on PCIe controller.
+
   '#interrupt-cells':
     const: 1
 
@@ -96,6 +108,45 @@ required:
 allOf:
   - $ref: /schemas/pci/pci-host-bridge.yaml#
 
+  - if:
+      properties:
+        compatible:
+          const: airoha,an7583-pcie
+    then:
+      properties:
+        reg:
+          maxItems: 1
+
+        reg-names:
+          const: port1
+
+        clocks:
+          maxItems: 1
+
+        clock-names:
+          const: sys_ck1
+
+        reset:
+          maxItems: 1
+
+        reset-names:
+          const: pcie-rst1
+
+        phys:
+          maxItems: 1
+
+        phy-names:
+          const: pcie-phy1
+
+        power-domain: false
+
+      required:
+        - resets
+        - reset-names
+        - phys
+        - phy-names
+        - mediatek,pbus-csr
+
   - if:
       properties:
         compatible:
@@ -131,6 +182,8 @@ allOf:
 
         power-domains: false
 
+        mediatek,pbus-csr: false
+
       required:
         - phys
         - phy-names
@@ -169,6 +222,8 @@ allOf:
 
         phy-names: false
 
+        mediatek,pbus-csr: false
+
       required:
         - power-domains
 
@@ -209,6 +264,8 @@ allOf:
           items:
             - enum: [ pcie-phy0, pcie-phy1 ]
 
+        mediatek,pbus-csr: false
+
       required:
         - power-domains
 
@@ -243,6 +300,8 @@ allOf:
 
         power-domain: false
 
+        mediatek,pbus-csr: false
+
 unevaluatedProperties: false
 
 examples:
@@ -402,3 +461,54 @@ examples:
             };
         };
     };
+
+  # AN7583
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/clock/en7523-clk.h>
+
+    soc_3 {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        pcie@1fa92000 {
+            compatible = "airoha,an7583-pcie";
+            device_type = "pci";
+            linux,pci-domain = <1>;
+            #address-cells = <3>;
+            #size-cells = <2>;
+
+            reg = <0x0 0x1fa92000 0x0 0x1670>;
+            reg-names = "port1";
+
+            clocks = <&scuclk EN7523_CLK_PCIE>;
+            clock-names = "sys_ck1";
+
+            phys = <&pciephy>;
+            phy-names = "pcie-phy1";
+
+            ranges = <0x02000000 0 0x24000000 0x0 0x24000000 0 0x4000000>;
+
+            resets = <&scuclk>; /* AN7583_PCIE1_RST */
+            reset-names = "pcie-rst1";
+
+            mediatek,pbus-csr = <&pbus_csr 0x8 0xc>;
+
+            interrupts = <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>;
+            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_intc1 0>,
+                            <0 0 0 2 &pcie_intc1 1>,
+                            <0 0 0 3 &pcie_intc1 2>,
+                            <0 0 0 4 &pcie_intc1 3>;
+
+            pcie_intc1_4: interrupt-controller {
+                interrupt-controller;
+                #address-cells = <0>;
+                #interrupt-cells = <1>;
+            };
+        };
+    };
-- 
2.51.0


^ permalink raw reply related	[flat|nested] 8+ messages in thread

* [PATCH v2 4/4] PCI: mediatek: add support for Airoha AN7583 SoC
  2025-09-23 20:12 [PATCH v2 0/4] PCI: mediatek: add support AN7583 + YAML rework Christian Marangi
                   ` (2 preceding siblings ...)
  2025-09-23 20:12 ` [PATCH v2 3/4] dt-bindings: PCI: mediatek: Add support for Airoha AN7583 Christian Marangi
@ 2025-09-23 20:12 ` Christian Marangi
  3 siblings, 0 replies; 8+ messages in thread
From: Christian Marangi @ 2025-09-23 20:12 UTC (permalink / raw)
  To: Michael Turquette, Stephen Boyd, Rob Herring, Krzysztof Kozlowski,
	Conor Dooley, Matthias Brugger, AngeloGioacchino Del Regno,
	Ryder Lee, Jianjun Wang, Bjorn Helgaas, Lorenzo Pieralisi,
	Krzysztof Wilczyński, Manivannan Sadhasivam,
	Christian Marangi, linux-clk, devicetree, linux-kernel,
	linux-arm-kernel, linux-mediatek, linux-pci, upstream

Add support for the second PCIe line present on Airoha AN7583 SoC.

This is based on the Mediatek Gen1/2 PCIe driver and similar to Gen3
also require workaround for the reset signals.

Introduce a new bool to skip having to reset signals and also introduce
some additional logic to configure the PBUS registers required for
Airoha SoC.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
---
 drivers/pci/controller/pcie-mediatek.c | 85 +++++++++++++++++++-------
 1 file changed, 63 insertions(+), 22 deletions(-)

diff --git a/drivers/pci/controller/pcie-mediatek.c b/drivers/pci/controller/pcie-mediatek.c
index 24cc30a2ab6c..640d1f1a6478 100644
--- a/drivers/pci/controller/pcie-mediatek.c
+++ b/drivers/pci/controller/pcie-mediatek.c
@@ -147,6 +147,7 @@ struct mtk_pcie_port;
  * @need_fix_class_id: whether this host's class ID needed to be fixed or not
  * @need_fix_device_id: whether this host's device ID needed to be fixed or not
  * @no_msi: Bridge has no MSI support, and relies on an external block
+ * @skip_pcie_rstb: Skip calling RSTB bits on PCIe probe
  * @device_id: device ID which this host need to be fixed
  * @ops: pointer to configuration access functions
  * @startup: pointer to controller setting functions
@@ -156,6 +157,7 @@ struct mtk_pcie_soc {
 	bool need_fix_class_id;
 	bool need_fix_device_id;
 	bool no_msi;
+	bool skip_pcie_rstb;
 	unsigned int device_id;
 	struct pci_ops *ops;
 	int (*startup)(struct mtk_pcie_port *port);
@@ -679,28 +681,30 @@ static int mtk_pcie_startup_port_v2(struct mtk_pcie_port *port)
 		regmap_update_bits(pcie->cfg, PCIE_SYS_CFG_V2, val, val);
 	}
 
-	/* Assert all reset signals */
-	writel(0, port->base + PCIE_RST_CTRL);
-
-	/*
-	 * Enable PCIe link down reset, if link status changed from link up to
-	 * link down, this will reset MAC control registers and configuration
-	 * space.
-	 */
-	writel(PCIE_LINKDOWN_RST_EN, port->base + PCIE_RST_CTRL);
-
-	/*
-	 * Described in PCIe CEM specification sections 2.2 (PERST# Signal) and
-	 * 2.2.1 (Initial Power-Up (G3 to S0)). The deassertion of PERST# should
-	 * be delayed 100ms (TPVPERL) for the power and clock to become stable.
-	 */
-	msleep(100);
-
-	/* De-assert PHY, PE, PIPE, MAC and configuration reset	*/
-	val = readl(port->base + PCIE_RST_CTRL);
-	val |= PCIE_PHY_RSTB | PCIE_PERSTB | PCIE_PIPE_SRSTB |
-	       PCIE_MAC_SRSTB | PCIE_CRSTB;
-	writel(val, port->base + PCIE_RST_CTRL);
+	if (!soc->skip_pcie_rstb) {
+		/* Assert all reset signals */
+		writel(0, port->base + PCIE_RST_CTRL);
+
+		/*
+		 * Enable PCIe link down reset, if link status changed from link up to
+		 * link down, this will reset MAC control registers and configuration
+		 * space.
+		 */
+		writel(PCIE_LINKDOWN_RST_EN, port->base + PCIE_RST_CTRL);
+
+		/*
+		 * Described in PCIe CEM specification sections 2.2 (PERST# Signal) and
+		 * 2.2.1 (Initial Power-Up (G3 to S0)). The deassertion of PERST# should
+		 * be delayed 100ms (TPVPERL) for the power and clock to become stable.
+		 */
+		msleep(100);
+
+		/* De-assert PHY, PE, PIPE, MAC and configuration reset	*/
+		val = readl(port->base + PCIE_RST_CTRL);
+		val |= PCIE_PHY_RSTB | PCIE_PERSTB | PCIE_PIPE_SRSTB |
+		       PCIE_MAC_SRSTB | PCIE_CRSTB;
+		writel(val, port->base + PCIE_RST_CTRL);
+	}
 
 	/* Set up vendor ID and class code */
 	if (soc->need_fix_class_id) {
@@ -1105,6 +1109,33 @@ static int mtk_pcie_probe(struct platform_device *pdev)
 	if (err)
 		goto put_resources;
 
+	if (device_is_compatible(dev, "airoha,an7583-pcie")) {
+		struct resource_entry *entry;
+		struct regmap *pbus_regmap;
+		resource_size_t addr;
+		u32 args[2], size;
+
+		/*
+		 * Configure PBus base address and base address mask to allow the
+		 * hw to detect if a given address is accessible on PCIe controller.
+		 */
+		pbus_regmap = syscon_regmap_lookup_by_phandle_args(dev->of_node,
+								   "mediatek,pbus-csr",
+								   ARRAY_SIZE(args),
+								   args);
+		if (IS_ERR(pbus_regmap))
+			return PTR_ERR(pbus_regmap);
+
+		entry = resource_list_first_type(&host->windows, IORESOURCE_MEM);
+		if (!entry)
+			return -ENODEV;
+
+		addr = entry->res->start - entry->offset;
+		regmap_write(pbus_regmap, args[0], lower_32_bits(addr));
+		size = lower_32_bits(resource_size(entry->res));
+		regmap_write(pbus_regmap, args[1], GENMASK(31, __fls(size)));
+	}
+
 	return 0;
 
 put_resources:
@@ -1205,6 +1236,15 @@ static const struct mtk_pcie_soc mtk_pcie_soc_mt7622 = {
 	.setup_irq = mtk_pcie_setup_irq,
 };
 
+static const struct mtk_pcie_soc mtk_pcie_soc_an7583 = {
+	.skip_pcie_rstb = true,
+	.need_fix_class_id = true,
+	.need_fix_device_id = false,
+	.ops = &mtk_pcie_ops_v2,
+	.startup = mtk_pcie_startup_port_v2,
+	.setup_irq = mtk_pcie_setup_irq,
+};
+
 static const struct mtk_pcie_soc mtk_pcie_soc_mt7629 = {
 	.need_fix_class_id = true,
 	.need_fix_device_id = true,
@@ -1215,6 +1255,7 @@ static const struct mtk_pcie_soc mtk_pcie_soc_mt7629 = {
 };
 
 static const struct of_device_id mtk_pcie_ids[] = {
+	{ .compatible = "airoha,an7583-pcie", .data = &mtk_pcie_soc_an7583 },
 	{ .compatible = "mediatek,mt2701-pcie", .data = &mtk_pcie_soc_v1 },
 	{ .compatible = "mediatek,mt7623-pcie", .data = &mtk_pcie_soc_v1 },
 	{ .compatible = "mediatek,mt2712-pcie", .data = &mtk_pcie_soc_mt2712 },
-- 
2.51.0


^ permalink raw reply related	[flat|nested] 8+ messages in thread

* Re: [PATCH v2 1/4] dt-bindings: clock: mediatek: Fix wrong compatible list for hifsys YAML
  2025-09-23 20:12 ` [PATCH v2 1/4] dt-bindings: clock: mediatek: Fix wrong compatible list for hifsys YAML Christian Marangi
@ 2025-09-23 23:15   ` Rob Herring (Arm)
  2025-09-24 14:03   ` Rob Herring
  1 sibling, 0 replies; 8+ messages in thread
From: Rob Herring (Arm) @ 2025-09-23 23:15 UTC (permalink / raw)
  To: Christian Marangi
  Cc: linux-arm-kernel, linux-pci, linux-mediatek, linux-clk,
	Stephen Boyd, upstream, Krzysztof Wilczyński,
	Michael Turquette, Krzysztof Kozlowski, linux-kernel,
	Manivannan Sadhasivam, Matthias Brugger, Bjorn Helgaas,
	Conor Dooley, Lorenzo Pieralisi, devicetree, Jianjun Wang,
	Ryder Lee, AngeloGioacchino Del Regno


On Tue, 23 Sep 2025 22:12:29 +0200, Christian Marangi wrote:
> While converting the hifsys to YAML schema, the "syscon" compatible was
> dropped for the mt7623 and the mt2701 compatible.
> 
> Add back the compatible to mute DTBs warning on "make dtbs_check" and
> reflect real state of the .dtsi.
> 
> Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
> ---
>  .../devicetree/bindings/clock/mediatek,mt2701-hifsys.yaml | 8 +++++---
>  1 file changed, 5 insertions(+), 3 deletions(-)
> 

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/clock/mediatek,mt2701-hifsys.example.dtb: clock-controller@1a000000 (mediatek,mt2701-hifsys): compatible: 'oneOf' conditional failed, one must be fixed:
	['mediatek,mt2701-hifsys'] is too short
	'mediatek,mt7622-hifsys' was expected
	'mediatek,mt2701-hifsys' is not one of ['mediatek,mt7623-hifsys']
	from schema $id: http://devicetree.org/schemas/clock/mediatek,mt2701-hifsys.yaml#

doc reference errors (make refcheckdocs):

See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20250923201244.952-2-ansuelsmth@gmail.com

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.


^ permalink raw reply	[flat|nested] 8+ messages in thread

* Re: [PATCH v2 1/4] dt-bindings: clock: mediatek: Fix wrong compatible list for hifsys YAML
  2025-09-23 20:12 ` [PATCH v2 1/4] dt-bindings: clock: mediatek: Fix wrong compatible list for hifsys YAML Christian Marangi
  2025-09-23 23:15   ` Rob Herring (Arm)
@ 2025-09-24 14:03   ` Rob Herring
  2025-09-25 16:06     ` Christian Marangi
  1 sibling, 1 reply; 8+ messages in thread
From: Rob Herring @ 2025-09-24 14:03 UTC (permalink / raw)
  To: Christian Marangi
  Cc: Michael Turquette, Stephen Boyd, Krzysztof Kozlowski,
	Conor Dooley, Matthias Brugger, AngeloGioacchino Del Regno,
	Ryder Lee, Jianjun Wang, Bjorn Helgaas, Lorenzo Pieralisi,
	Krzysztof Wilczyński, Manivannan Sadhasivam, linux-clk,
	devicetree, linux-kernel, linux-arm-kernel, linux-mediatek,
	linux-pci, upstream

On Tue, Sep 23, 2025 at 10:12:29PM +0200, Christian Marangi wrote:
> While converting the hifsys to YAML schema, the "syscon" compatible was
> dropped for the mt7623 and the mt2701 compatible.

Is "syscon" really needed? AFAICT, the clock and reset drivers don't 
need it.

> 
> Add back the compatible to mute DTBs warning on "make dtbs_check" and
> reflect real state of the .dtsi.
> 
> Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
> ---
>  .../devicetree/bindings/clock/mediatek,mt2701-hifsys.yaml | 8 +++++---
>  1 file changed, 5 insertions(+), 3 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/clock/mediatek,mt2701-hifsys.yaml b/Documentation/devicetree/bindings/clock/mediatek,mt2701-hifsys.yaml
> index 9e7c725093aa..aa3345ea8283 100644
> --- a/Documentation/devicetree/bindings/clock/mediatek,mt2701-hifsys.yaml
> +++ b/Documentation/devicetree/bindings/clock/mediatek,mt2701-hifsys.yaml
> @@ -16,13 +16,15 @@ maintainers:
>  properties:
>    compatible:
>      oneOf:
> -      - enum:
> -          - mediatek,mt2701-hifsys
> -          - mediatek,mt7622-hifsys
> +      - items:
> +          - const: mediatek,mt2701-hifsys
> +          - const: syscon
> +      - const: mediatek,mt7622-hifsys
>        - items:
>            - enum:
>                - mediatek,mt7623-hifsys
>            - const: mediatek,mt2701-hifsys
> +          - const: syscon
>  
>    reg:
>      maxItems: 1
> -- 
> 2.51.0
> 

^ permalink raw reply	[flat|nested] 8+ messages in thread

* Re: [PATCH v2 1/4] dt-bindings: clock: mediatek: Fix wrong compatible list for hifsys YAML
  2025-09-24 14:03   ` Rob Herring
@ 2025-09-25 16:06     ` Christian Marangi
  0 siblings, 0 replies; 8+ messages in thread
From: Christian Marangi @ 2025-09-25 16:06 UTC (permalink / raw)
  To: Rob Herring
  Cc: Michael Turquette, Stephen Boyd, Krzysztof Kozlowski,
	Conor Dooley, Matthias Brugger, AngeloGioacchino Del Regno,
	Ryder Lee, Jianjun Wang, Bjorn Helgaas, Lorenzo Pieralisi,
	Krzysztof Wilczyński, Manivannan Sadhasivam, linux-clk,
	devicetree, linux-kernel, linux-arm-kernel, linux-mediatek,
	linux-pci, upstream

On Wed, Sep 24, 2025 at 09:03:47AM -0500, Rob Herring wrote:
> On Tue, Sep 23, 2025 at 10:12:29PM +0200, Christian Marangi wrote:
> > While converting the hifsys to YAML schema, the "syscon" compatible was
> > dropped for the mt7623 and the mt2701 compatible.
> 
> Is "syscon" really needed? AFAICT, the clock and reset drivers don't 
> need it.
>

Ok I also searched downstream and can't find any patch that would make
use of syscon. Guess I will replace this patch with a patch that drop
the syscon from the dts.

> > 
> > Add back the compatible to mute DTBs warning on "make dtbs_check" and
> > reflect real state of the .dtsi.
> > 
> > Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
> > ---
> >  .../devicetree/bindings/clock/mediatek,mt2701-hifsys.yaml | 8 +++++---
> >  1 file changed, 5 insertions(+), 3 deletions(-)
> > 
> > diff --git a/Documentation/devicetree/bindings/clock/mediatek,mt2701-hifsys.yaml b/Documentation/devicetree/bindings/clock/mediatek,mt2701-hifsys.yaml
> > index 9e7c725093aa..aa3345ea8283 100644
> > --- a/Documentation/devicetree/bindings/clock/mediatek,mt2701-hifsys.yaml
> > +++ b/Documentation/devicetree/bindings/clock/mediatek,mt2701-hifsys.yaml
> > @@ -16,13 +16,15 @@ maintainers:
> >  properties:
> >    compatible:
> >      oneOf:
> > -      - enum:
> > -          - mediatek,mt2701-hifsys
> > -          - mediatek,mt7622-hifsys
> > +      - items:
> > +          - const: mediatek,mt2701-hifsys
> > +          - const: syscon
> > +      - const: mediatek,mt7622-hifsys
> >        - items:
> >            - enum:
> >                - mediatek,mt7623-hifsys
> >            - const: mediatek,mt2701-hifsys
> > +          - const: syscon
> >  
> >    reg:
> >      maxItems: 1
> > -- 
> > 2.51.0
> > 

-- 
	Ansuel

^ permalink raw reply	[flat|nested] 8+ messages in thread

end of thread, other threads:[~2025-09-25 16:06 UTC | newest]

Thread overview: 8+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2025-09-23 20:12 [PATCH v2 0/4] PCI: mediatek: add support AN7583 + YAML rework Christian Marangi
2025-09-23 20:12 ` [PATCH v2 1/4] dt-bindings: clock: mediatek: Fix wrong compatible list for hifsys YAML Christian Marangi
2025-09-23 23:15   ` Rob Herring (Arm)
2025-09-24 14:03   ` Rob Herring
2025-09-25 16:06     ` Christian Marangi
2025-09-23 20:12 ` [PATCH v2 2/4] dt-bindings: PCI: mediatek: Convert to YAML schema Christian Marangi
2025-09-23 20:12 ` [PATCH v2 3/4] dt-bindings: PCI: mediatek: Add support for Airoha AN7583 Christian Marangi
2025-09-23 20:12 ` [PATCH v2 4/4] PCI: mediatek: add support for Airoha AN7583 SoC Christian Marangi

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).