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can: rcar_can: Add r8a7795 support 

Added r8a7795 SoC support.

Signed-off-by: Ramesh Shanmugasundaram <ramesh.shanmugasundaram@bp.renesas.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This commit is contained in:
Ramesh Shanmugasundaram 2016-02-29 12:37:25 +00:00 committed by Marc Kleine-Budde
parent 6cc6426605
commit e481ab23c5
3 changed files with 13 additions and 1 deletions
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11
Documentation/devicetree/bindings/net/can/rcar_can.txt
View File

@ -9,8 +9,10 @@ Required properties:
"renesas,can-r8a7792" if CAN controller is a part of R8A7792 SoC.
"renesas,can-r8a7793" if CAN controller is a part of R8A7793 SoC.
"renesas,can-r8a7794" if CAN controller is a part of R8A7794 SoC.
"renesas,can-r8a7795" if CAN controller is a part of R8A7795 SoC.
"renesas,rcar-gen1-can" for a generic R-Car Gen1 compatible device.
"renesas,rcar-gen2-can" for a generic R-Car Gen2 compatible device.
"renesas,rcar-gen3-can" for a generic R-Car Gen3 compatible device.
When compatible with the generic version, nodes must list the
SoC-specific version corresponding to the platform first
followed by the generic version.
@ -22,6 +24,15 @@ Required properties:
- pinctrl-0: pin control group to be used for this controller.
- pinctrl-names: must be "default".
Required properties for "renesas,can-r8a7795" compatible:
In R8A7795 SoC, "clkp2" can be CANFD clock. This is a div6 clock and can be
used by both CAN and CAN FD controller at the same time. It needs to be scaled
to maximum frequency if any of these controllers use it. This is done using
the below properties.
- assigned-clocks: phandle of clkp2(CANFD) clock.
- assigned-clock-rates: maximum frequency of this clock.
Optional properties:
- renesas,can-clock-select: R-Car CAN Clock Source Select. Valid values are:
<0x0> (default) : Peripheral clock (clkp1)

2
drivers/net/can/Kconfig
View File

@ -106,7 +106,7 @@ config CAN_JANZ_ICAN3
config CAN_RCAR
tristate "Renesas R-Car CAN controller"
depends on ARM
depends on ARCH_RENESAS || ARM
---help---
Say Y here if you want to use CAN controller found on Renesas R-Car
SoCs.

1
drivers/net/can/rcar_can.c
View File

@ -906,6 +906,7 @@ static const struct of_device_id rcar_can_of_table[] __maybe_unused = {
{ .compatible = "renesas,can-r8a7791" },
{ .compatible = "renesas,rcar-gen1-can" },
{ .compatible = "renesas,rcar-gen2-can" },
{ .compatible = "renesas,rcar-gen3-can" },
{ }
};
MODULE_DEVICE_TABLE(of, rcar_can_of_table);