netdev - [PATCH v6 03/15] dt-bindings: net: mediatek,net: update for mt7988

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Message-ID: <20250628091043.57645-4-linux@fw-web.de>
Date: Sat, 28 Jun 2025 11:10:27 +0200
From: Frank Wunderlich <linux@...web.de>
To: MyungJoo Ham <myungjoo.ham@...sung.com>,
	Kyungmin Park <kyungmin.park@...sung.com>,
	Chanwoo Choi <cw00.choi@...sung.com>,
	Georgi Djakov <djakov@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Andrew Lunn <andrew@...n.ch>,
	Vladimir Oltean <olteanv@...il.com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Matthias Brugger <matthias.bgg@...il.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
Cc: Frank Wunderlich <frank-w@...lic-files.de>,
	Johnson Wang <johnson.wang@...iatek.com>,
	Arınç ÜNAL <arinc.unal@...nc9.com>,
	Landen Chao <Landen.Chao@...iatek.com>,
	DENG Qingfang <dqfext@...il.com>,
	Sean Wang <sean.wang@...iatek.com>,
	Daniel Golle <daniel@...rotopia.org>,
	Lorenzo Bianconi <lorenzo@...nel.org>,
	Felix Fietkau <nbd@....name>,
	linux-pm@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org
Subject: [PATCH v6 03/15] dt-bindings: net: mediatek,net: update for mt7988

From: Frank Wunderlich <frank-w@...lic-files.de>

Update binding for mt7988 which has 3 gmac and a sram for dma
operations.

MT7988 has 4 FE IRQs (currently only 2 are used) and 4 IRQs for use
with RSS/LRO later.

Signed-off-by: Frank Wunderlich <frank-w@...lic-files.de>
---
v6:
- split out the interrupt-names into separate patch
- update irq(name) min count to 4
- add sram-property
- drop second reg entry and minitems as there is only 1 item left again

v5:
- fix v4 logmessage and change description a bit describing how i get
  the irq count.
- update binding for 8 irqs with different names (rx,tx => fe0..fe3)
  including the 2 reserved irqs which can be used later
- change rx-ringX to pdmaX to be closer to hardware documentation

v4:
- increase max interrupts to 6 because of adding RSS/LRO interrupts (4)
  and dropping 2 reserved irqs (0+3) around rx+tx
- dropped Robs RB due to this change
- allow interrupt names
- add interrupt-names without reserved IRQs on mt7988
  this requires mtk driver patch:
  https://patchwork.kernel.org/project/netdevbpf/patch/20250616080738.117993-2-linux@fw-web.de/

v2:
- change reg to list of items
---
 Documentation/devicetree/bindings/net/mediatek,net.yaml | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/net/mediatek,net.yaml b/Documentation/devicetree/bindings/net/mediatek,net.yaml
index 6672db206b38..74a139000f60 100644
--- a/Documentation/devicetree/bindings/net/mediatek,net.yaml
+++ b/Documentation/devicetree/bindings/net/mediatek,net.yaml
@@ -28,7 +28,8 @@ properties:
       - ralink,rt5350-eth
 
   reg:
-    maxItems: 1
+    items:
+      - description: Register for accessing the MACs.
 
   clocks:
     minItems: 2
@@ -66,6 +67,10 @@ properties:
       - const: gmac
       - const: ppe
 
+  sram:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description: phandle to mmio SRAM
+
   mediatek,ethsys:
     $ref: /schemas/types.yaml#/definitions/phandle
     description:
@@ -418,7 +423,7 @@ allOf:
             - const: xgp3
 
 patternProperties:
-  "^mac@[0-1]$":
+  "^mac@[0-2]$":
     type: object
     unevaluatedProperties: false
     allOf:
-- 
2.43.0