[PATCH v2 2/4] dt-bindings: can: Add CAST CAN Bus Controller

Hal Feng
2024-09-22T14:52:36Z

From: William Qiu <william.qiu@starfivetech.com>

Add bindings for CAST CAN Bus Controller.

Signed-off-by: William Qiu <william.qiu@starfivetech.com>
Signed-off-by: Hal Feng <hal.feng@starfivetech.com>
---
.../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@starfivetech.com>
+ - Hal Feng <hal.feng@starfivetech.com>
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - starfive,jh7110-can
+ - const: cast,can-ctrl-fd-7x10N00S00
+
+ 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.
+
+allOf:
+ - $ref: can-controller.yaml#
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: starfive,jh7110-can
+ then:
+ required:
+ - starfive,syscon
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - resets
+ - reset-names
+
+additionalProperties: false
+
+examples:
+ - |
+ can@130d0000{
+ compatible = "starfive,jh7110-can", "cast,can-ctrl-fd-7x10N00S00";
+ reg = <0x130d0000 0x1000>;
+ interrupts = <112>;
+ clocks = <&syscrg 115>,
+ <&syscrg 116>,
+ <&syscrg 117>;
+ clock-names = "apb", "timer", "core";
+ resets = <&syscrg 111>,
+ <&syscrg 113>,
+ <&syscrg 112>;
+ reset-names = "apb", "timer", "core";
+ starfive,syscon = <&sys_syscon 0x10 0x3 0x8>;
+ };
+
+...
--
2.43.2