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Message-ID: <20250702222626.2761199-1-robh@kernel.org>
Date: Wed, 2 Jul 2025 17:26:24 -0500
From: "Rob Herring (Arm)" <robh@...nel.org>
To: Andrew Lunn <andrew+netdev@...n.ch>,
"David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
Marcin Wojtas <marcin.s.wojtas@...il.com>
Cc: netdev@...r.kernel.org,
devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH] dt-bindings: net: Convert Marvell Armada NETA and BM to DT schema
Convert Marvell Armada NETA Ethernet Controller and Buffer Manager
bindings to schema. It is a straight forward conversion.
Signed-off-by: Rob Herring (Arm) <robh@...nel.org>
---
.../bindings/net/marvell,armada-370-neta.yaml | 79 +++++++++++++++++++
.../net/marvell,armada-380-neta-bm.yaml | 60 ++++++++++++++
.../bindings/net/marvell-armada-370-neta.txt | 50 ------------
.../bindings/net/marvell-neta-bm.txt | 47 -----------
.../devicetree/bindings/vendor-prefixes.yaml | 1 +
5 files changed, 140 insertions(+), 97 deletions(-)
create mode 100644 Documentation/devicetree/bindings/net/marvell,armada-370-neta.yaml
create mode 100644 Documentation/devicetree/bindings/net/marvell,armada-380-neta-bm.yaml
delete mode 100644 Documentation/devicetree/bindings/net/marvell-armada-370-neta.txt
delete mode 100644 Documentation/devicetree/bindings/net/marvell-neta-bm.txt
diff --git a/Documentation/devicetree/bindings/net/marvell,armada-370-neta.yaml b/Documentation/devicetree/bindings/net/marvell,armada-370-neta.yaml
new file mode 100644
index 000000000000..8814977da024
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/marvell,armada-370-neta.yaml
@@ -0,0 +1,79 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/marvell,armada-370-neta.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Marvell Armada 370/XP/3700/AC5 Ethernet Controller (NETA)
+
+maintainers:
+ - Marcin Wojtas <marcin.s.wojtas@...il.com>
+
+allOf:
+ - $ref: /schemas/net/ethernet-controller.yaml#
+
+properties:
+ compatible:
+ enum:
+ - marvell,armada-370-neta
+ - marvell,armada-xp-neta
+ - marvell,armada-3700-neta
+ - marvell,armada-ac5-neta
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ minItems: 1
+ maxItems: 2
+
+ clock-names:
+ minItems: 1
+ items:
+ - const: core
+ - const: bus
+
+ phys:
+ maxItems: 1
+
+ tx-csum-limit:
+ description: Maximum MTU in bytes for Tx checksum offload; default is 1600 for
+ armada-370-neta and 9800 for others.
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ buffer-manager:
+ description: Phandle to hardware buffer manager.
+ $ref: /schemas/types.yaml#/definitions/phandle
+
+ bm,pool-long:
+ description: Pool ID for packets larger than the short threshold.
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ bm,pool-short:
+ description: Pool ID for packets smaller than the long threshold.
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+required:
+ - compatible
+ - reg
+ - clocks
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ ethernet@...00 {
+ compatible = "marvell,armada-370-neta";
+ reg = <0x70000 0x2500>;
+ interrupts = <8>;
+ clocks = <&gate_clk 4>;
+ tx-csum-limit = <9800>;
+ phy = <&phy0>;
+ phy-mode = "rgmii-id";
+ buffer-manager = <&bm>;
+ bm,pool-long = <0>;
+ bm,pool-short = <1>;
+ };
diff --git a/Documentation/devicetree/bindings/net/marvell,armada-380-neta-bm.yaml b/Documentation/devicetree/bindings/net/marvell,armada-380-neta-bm.yaml
new file mode 100644
index 000000000000..9392e7126e3e
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/marvell,armada-380-neta-bm.yaml
@@ -0,0 +1,60 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/marvell,armada-380-neta-bm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Marvell Armada 380/XP Buffer Manager (BM)
+
+maintainers:
+ - Marcin Wojtas <marcin.s.wojtas@...il.com>
+
+description:
+ In order to see how to hook the BM to a given ethernet port, please refer to
+ Documentation/devicetree/bindings/net/marvell,armada-370-neta.yaml.
+
+properties:
+ compatible:
+ const: marvell,armada-380-neta-bm
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ internal-mem:
+ description: Phandle to internal SRAM region
+ $ref: /schemas/types.yaml#/definitions/phandle
+
+patternProperties:
+ "^pool[0-3],capacity$":
+ description:
+ size of external buffer pointers' ring maintained in DRAM for pool 0-3
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 128
+ maximum: 16352
+
+ "^pool[0-3],pkt-size$":
+ description:
+ maximum packet size for a short buffer pool entry (pool 0-3)
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - internal-mem
+
+additionalProperties: false
+
+examples:
+ - |
+ bm@...00 {
+ compatible = "marvell,armada-380-neta-bm";
+ reg = <0xc8000 0xac>;
+ clocks = <&gateclk 13>;
+ internal-mem = <&bm_bppi>;
+ pool2,capacity = <4096>;
+ pool1,pkt-size = <512>;
+ };
diff --git a/Documentation/devicetree/bindings/net/marvell-armada-370-neta.txt b/Documentation/devicetree/bindings/net/marvell-armada-370-neta.txt
deleted file mode 100644
index 2bf31572b08d..000000000000
--- a/Documentation/devicetree/bindings/net/marvell-armada-370-neta.txt
+++ /dev/null
@@ -1,50 +0,0 @@
-* Marvell Armada 370 / Armada XP / Armada 3700 Ethernet Controller (NETA)
-
-Required properties:
-- compatible: could be one of the following:
- "marvell,armada-370-neta"
- "marvell,armada-xp-neta"
- "marvell,armada-3700-neta"
- "marvell,armada-ac5-neta"
-- reg: address and length of the register set for the device.
-- interrupts: interrupt for the device
-- phy: See ethernet.txt file in the same directory.
-- phy-mode: See ethernet.txt file in the same directory
-- clocks: List of clocks for this device. At least one clock is
- mandatory for the core clock. If several clocks are given, then the
- clock-names property must be used to identify them.
-
-Optional properties:
-- tx-csum-limit: maximum mtu supported by port that allow TX checksum.
- Value is presented in bytes. If not used, by default 1600B is set for
- "marvell,armada-370-neta" and 9800B for others.
-- clock-names: List of names corresponding to clocks property; shall be
- "core" for core clock and "bus" for the optional bus clock.
-- phys: comphy for the ethernet port, see ../phy/phy-bindings.txt
-
-Optional properties (valid only for Armada XP/38x):
-
-- buffer-manager: a phandle to a buffer manager node. Please refer to
- Documentation/devicetree/bindings/net/marvell-neta-bm.txt
-- bm,pool-long: ID of a pool, that will accept all packets of a size
- higher than 'short' pool's threshold (if set) and up to MTU value.
- Obligatory, when the port is supposed to use hardware
- buffer management.
-- bm,pool-short: ID of a pool, that will be used for accepting
- packets of a size lower than given threshold. If not set, the port
- will use a single 'long' pool for all packets, as defined above.
-
-Example:
-
-ethernet@...00 {
- compatible = "marvell,armada-370-neta";
- reg = <0x70000 0x2500>;
- interrupts = <8>;
- clocks = <&gate_clk 4>;
- tx-csum-limit = <9800>
- phy = <&phy0>;
- phy-mode = "rgmii-id";
- buffer-manager = <&bm>;
- bm,pool-long = <0>;
- bm,pool-short = <1>;
-};
diff --git a/Documentation/devicetree/bindings/net/marvell-neta-bm.txt b/Documentation/devicetree/bindings/net/marvell-neta-bm.txt
deleted file mode 100644
index 07b31050dbe5..000000000000
--- a/Documentation/devicetree/bindings/net/marvell-neta-bm.txt
+++ /dev/null
@@ -1,47 +0,0 @@
-* Marvell Armada 380/XP Buffer Manager driver (BM)
-
-Required properties:
-
-- compatible: should be "marvell,armada-380-neta-bm".
-- reg: address and length of the register set for the device.
-- clocks: a pointer to the reference clock for this device.
-- internal-mem: a phandle to BM internal SRAM definition.
-
-Optional properties (port):
-
-- pool<0 : 3>,capacity: size of external buffer pointers' ring maintained
- in DRAM. Can be set for each pool (id 0 : 3) separately. The value has
- to be chosen between 128 and 16352 and it also has to be aligned to 32.
- Otherwise the driver would adjust a given number or choose default if
- not set.
-- pool<0 : 3>,pkt-size: maximum size of a packet accepted by a given buffer
- pointers' pool (id 0 : 3). It will be taken into consideration only when pool
- type is 'short'. For 'long' ones it would be overridden by port's MTU.
- If not set a driver will choose a default value.
-
-In order to see how to hook the BM to a given ethernet port, please
-refer to Documentation/devicetree/bindings/net/marvell-armada-370-neta.txt.
-
-Example:
-
-- main node:
-
-bm: bm@...00 {
- compatible = "marvell,armada-380-neta-bm";
- reg = <0xc8000 0xac>;
- clocks = <&gateclk 13>;
- internal-mem = <&bm_bppi>;
- pool2,capacity = <4096>;
- pool1,pkt-size = <512>;
-};
-
-- internal SRAM node:
-
-bm_bppi: bm-bppi {
- compatible = "mmio-sram";
- reg = <MBUS_ID(0x0c, 0x04) 0 0x100000>;
- ranges = <0 MBUS_ID(0x0c, 0x04) 0 0x100000>;
- #address-cells = <1>;
- #size-cells = <1>;
- clocks = <&gateclk 13>;
-};
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml
index 5d2a7a8d3ac6..741b545e3ab0 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.yaml
+++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml
@@ -21,6 +21,7 @@ patternProperties:
"^(pciclass|pinctrl-single|#pinctrl-single|PowerPC),.*": true
"^(pl022|pxa-mmc|rcar_sound|rotary-encoder|s5m8767|sdhci),.*": true
"^(simple-audio-card|st-plgpio|st-spics|ts),.*": true
+ "^pool[0-3],.*": true
# Keep list in alphabetical order.
"^100ask,.*":
--
2.47.2
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