[PATCH v5 01/13] dt-bindings: net: mediatek,net: update for mt7988

From: Frank Wunderlich
Date: Fri Jun 20 2025 - 04:36:40 EST


From: Frank Wunderlich <frank-w@xxxxxxxxxxxxxxx>

Update binding for mt7988 which has 3 gmac and 2 reg items.

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

Add interrupt-names to make them accessible by name.

Signed-off-by: Frank Wunderlich <frank-w@xxxxxxxxxxxxxxx>
---
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@xxxxxxxxx/

v2:
- change reg to list of items
---
.../devicetree/bindings/net/mediatek,net.yaml | 30 ++++++++++++++++---
1 file changed, 26 insertions(+), 4 deletions(-)

diff --git a/Documentation/devicetree/bindings/net/mediatek,net.yaml b/Documentation/devicetree/bindings/net/mediatek,net.yaml
index 9e02fd80af83..9465b40683ad 100644
--- a/Documentation/devicetree/bindings/net/mediatek,net.yaml
+++ b/Documentation/devicetree/bindings/net/mediatek,net.yaml
@@ -28,7 +28,10 @@ properties:
- ralink,rt5350-eth

reg:
- maxItems: 1
+ items:
+ - description: Register for accessing the MACs.
+ - description: SoC internal SRAM used for DMA operations.
+ minItems: 1

clocks:
minItems: 2
@@ -40,7 +43,11 @@ properties:

interrupts:
minItems: 1
- maxItems: 4
+ maxItems: 8
+
+ interrupt-names:
+ minItems: 1
+ maxItems: 8

power-domains:
maxItems: 1
@@ -348,7 +355,19 @@ allOf:
then:
properties:
interrupts:
- minItems: 4
+ minItems: 2
+
+ interrupt-names:
+ minItems: 2
+ items:
+ - const: fe0
+ - const: fe1
+ - const: fe2
+ - const: fe3
+ - const: pdma0
+ - const: pdma1
+ - const: pdma2
+ - const: pdma3

clocks:
minItems: 24
@@ -381,8 +400,11 @@ allOf:
- const: xgp2
- const: xgp3

+ reg:
+ minItems: 2
+
patternProperties:
- "^mac@[0-1]$":
+ "^mac@[0-2]$":
type: object
unevaluatedProperties: false
allOf:
--
2.43.0