On Sun, Sep 22, 2024 at 10:51:48PM +0800, Hal Feng wrote: > From: William Qiu <william.qiu@xxxxxxxxxxxxxxxx> > > Add bindings for CAST CAN Bus Controller. > > Signed-off-by: William Qiu <william.qiu@xxxxxxxxxxxxxxxx> > Signed-off-by: Hal Feng <hal.feng@xxxxxxxxxxxxxxxx> > --- > .../bindings/net/can/cast,can-ctrl.yaml | 106 ++++++++++++++++++ > 1 file changed, 106 insertions(+) > create mode 100644 Documentation/devicetree/bindings/net/can/cast,can-ctrl.yaml > > diff --git a/Documentation/devicetree/bindings/net/can/cast,can-ctrl.yaml b/Documentation/devicetree/bindings/net/can/cast,can-ctrl.yaml > new file mode 100644 > index 000000000000..2870cff80164 > --- /dev/null > +++ b/Documentation/devicetree/bindings/net/can/cast,can-ctrl.yaml > @@ -0,0 +1,106 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/net/can/cast,can-ctrl.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: CAST CAN Bus Controller > + > +description: > + This CAN Bus Controller, also called CAN-CTRL, implements a highly > + featured and reliable CAN bus controller that performs serial > + communication according to the CAN protocol. > + > + The CAN-CTRL comes in three variants, they are CC, FD, and XL. > + The CC variant supports only Classical CAN, the FD variant adds support > + for CAN FD, and the XL variant supports the Classical CAN, CAN FD, and > + CAN XL standards. > + > +maintainers: > + - William Qiu <william.qiu@xxxxxxxxxxxxxxxx> > + - Hal Feng <hal.feng@xxxxxxxxxxxxxxxx> > + > +properties: > + compatible: > + items: > + - enum: > + - starfive,jh7110-can > + - const: cast,can-ctrl-fd-7x10N00S00 What's the 7x10...? Perhaps some explanation on it. > + > + reg: > + maxItems: 1 > + > + interrupts: > + maxItems: 1 > + > + clocks: > + minItems: 3 > + > + clock-names: > + items: > + - const: apb > + - const: timer > + - const: core > + > + resets: > + minItems: 3 > + > + reset-names: > + items: > + - const: apb > + - const: timer > + - const: core > + > + starfive,syscon: > + $ref: /schemas/types.yaml#/definitions/phandle-array > + items: > + - items: > + - description: phandle to System Register Controller syscon node > + - description: offset of SYS_SYSCONSAIF__SYSCFG register for CAN controller > + - description: shift of SYS_SYSCONSAIF__SYSCFG register for CAN controller > + - description: mask of SYS_SYSCONSAIF__SYSCFG register for CAN controller > + description: > + Should be four parameters, the phandle to System Register Controller > + syscon node and the offset/shift/mask of SYS_SYSCONSAIF__SYSCFG register > + for CAN controller. This just repeats what the schema says. More useful would be what you need to access/control in this register. Rob
