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.
Signed-off-by: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
---
.../bindings/net/can/renesas,rcar-canfd.yaml | 67 +++++++++++++++++--
1 file changed, 62 insertions(+), 5 deletions(-)
diff --git a/Documentation/devicetree/bindings/net/can/renesas,rcar-canfd.yaml b/Documentation/devicetree/bindings/net/can/renesas,rcar-canfd.yaml
index f87f90f431e5..189d5303ad75 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
@@ -173,7 +206,9 @@ allOf:
properties:
compatible:
contains:
- const: renesas,rzg2l-canfd
+ enum:
+ - renesas,r9a09g047-canfd
+ - renesas,rzg2l-canfd
then:
properties:
resets:
@@ -187,6 +222,19 @@ allOf:
required:
- reset-names
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: renesas,r9a09g047-canfd
+ then:
+ properties:
+ interrupts:
+ maxItems: 20
+
+ interrupt-names:
+ maxItems: 20
+
- if:
properties:
compatible:
@@ -219,6 +267,15 @@ 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
