Document support for the CAN-FD Interface on the RZ/G3E (R9A09G047) SoC,
which supports up to six channels.
The CAN-FD module on RZ/G3E is very similar to the one on both R-Car V4H
and RZ/G2L, but differs in some hardware parameters:
* No external clock, but instead has ram clock.
* Support up to 6 channels.
* 20 interrupts.
Reviewed-by: Rob Herring (Arm) <robh@xxxxxxxxxx>
Reviewed-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
Signed-off-by: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
---
v4->v5:
* Keeping interrupts and resets together allows to keep a clear
separation between RZ/G2L and RZ/G3E, at the expense of only
a single line.
* Retained the tags as it is trivial change.
v3->v4:
* Added Rb tag from Rob.
v2->v3:
* Replaced maxItems->minItems: 20 for RZ/G3E interrupt,s as the list has 20
elements and for existing platforms dropped minItems and keep maxItems: 8.
v1->v2:
* No change.
---
.../bindings/net/can/renesas,rcar-canfd.yaml | 76 +++++++++++++++++--
1 file changed, 70 insertions(+), 6 deletions(-)
diff --git a/Documentation/devicetree/bindings/net/can/renesas,rcar-canfd.yaml b/Documentation/devicetree/bindings/net/can/renesas,rcar-canfd.yaml
index 4a83498b2a8b..f4ac21c68427 100644
--- a/Documentation/devicetree/bindings/net/can/renesas,rcar-canfd.yaml
+++ b/Documentation/devicetree/bindings/net/can/renesas,rcar-canfd.yaml
@@ -42,6 +42,8 @@ properties:
- renesas,r9a07g054-canfd # RZ/V2L
- const: renesas,rzg2l-canfd # RZ/G2L family
+ - const: renesas,r9a09g047-canfd # RZ/G3E
+
reg:
maxItems: 1
@@ -59,6 +61,19 @@ properties:
- description: CAN1 error interrupt
- description: CAN1 transmit interrupt
- description: CAN1 transmit/receive FIFO receive completion interrupt
+ - description: CAN2 error interrupt
+ - description: CAN2 transmit interrupt
+ - description: CAN2 transmit/receive FIFO receive completion interrupt
+ - description: CAN3 error interrupt
+ - description: CAN3 transmit interrupt
+ - description: CAN3 transmit/receive FIFO receive completion interrupt
+ - description: CAN4 error interrupt
+ - description: CAN4 transmit interrupt
+ - description: CAN4 transmit/receive FIFO receive completion interrupt
+ - description: CAN5 error interrupt
+ - description: CAN5 transmit interrupt
+ - description: CAN5 transmit/receive FIFO receive completion interrupt
+ minItems: 8
interrupt-names:
oneOf:
@@ -74,15 +89,33 @@ properties:
- const: ch1_err
- const: ch1_rec
- const: ch1_trx
+ - const: ch2_err
+ - const: ch2_rec
+ - const: ch2_trx
+ - const: ch3_err
+ - const: ch3_rec
+ - const: ch3_trx
+ - const: ch4_err
+ - const: ch4_rec
+ - const: ch4_trx
+ - const: ch5_err
+ - const: ch5_rec
+ - const: ch5_trx
+ minItems: 8
clocks:
maxItems: 3
clock-names:
- items:
- - const: fck
- - const: canfd
- - const: can_clk
+ oneOf:
+ - items:
+ - const: fck
+ - const: canfd
+ - const: can_clk
+ - items:
+ - const: fck
+ - const: ram_clk
+ - const: can_clk
power-domains:
maxItems: 1
@@ -145,11 +178,9 @@ allOf:
then:
properties:
interrupts:
- minItems: 8
maxItems: 8
interrupt-names:
- minItems: 8
maxItems: 8
resets:
@@ -183,6 +214,30 @@ allOf:
resets:
maxItems: 1
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: renesas,r9a09g047-canfd
+ then:
+ properties:
+ interrupts:
+ minItems: 20
+
+ interrupt-names:
+ minItems: 20
+
+ resets:
+ minItems: 2
+ maxItems: 2
+
+ reset-names:
+ minItems: 2
+ maxItems: 2
+
+ required:
+ - reset-names
+
- if:
properties:
compatible:
@@ -203,6 +258,15 @@ allOf:
patternProperties:
"^channel[4-7]$": false
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: renesas,r9a09g047-canfd
+ then:
+ patternProperties:
+ "^channel[6-7]$": false
+
unevaluatedProperties: false
examples:
--
2.43.0
