netdev - [PATCH net-next 12/17] dt-bindings: net: can: binding for CTU CAN FD open-source IP core.

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Message-Id: <20220419152554.2925353-13-mkl@pengutronix.de>
Date:   Tue, 19 Apr 2022 17:25:49 +0200
From:   Marc Kleine-Budde <mkl@...gutronix.de>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, kuba@...nel.org, linux-can@...r.kernel.org,
        kernel@...gutronix.de, Pavel Pisa <pisa@....felk.cvut.cz>,
        Rob Herring <robh@...nel.org>, Pavel Machek <pavel@....cz>,
        Marc Kleine-Budde <mkl@...gutronix.de>
Subject: [PATCH net-next 12/17] dt-bindings: net: can: binding for CTU CAN FD open-source IP core.

From: Pavel Pisa <pisa@....felk.cvut.cz>

The device-tree bindings for open-source/open-hardware CAN FD IP core
designed at the Czech Technical University in Prague.

CTU CAN FD IP core and other CTU CAN bus related projects
listing and documentation page

   http://canbus.pages.fel.cvut.cz/

Link: https://lore.kernel.org/all/c5a37fc470ae065b21e79caa65863539393c0d7c.1647904780.git.pisa@cmp.felk.cvut.cz
Signed-off-by: Pavel Pisa <pisa@....felk.cvut.cz>
Reviewed-by: Rob Herring <robh@...nel.org>
Acked-by: Pavel Machek <pavel@....cz>
Signed-off-by: Marc Kleine-Budde <mkl@...gutronix.de>
---
 .../bindings/net/can/ctu,ctucanfd.yaml        | 63 +++++++++++++++++++
 1 file changed, 63 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/net/can/ctu,ctucanfd.yaml

diff --git a/Documentation/devicetree/bindings/net/can/ctu,ctucanfd.yaml b/Documentation/devicetree/bindings/net/can/ctu,ctucanfd.yaml
new file mode 100644
index 000000000000..fb34d971dcb3
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/can/ctu,ctucanfd.yaml
@@ -0,0 +1,63 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/can/ctu,ctucanfd.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: CTU CAN FD Open-source IP Core Device Tree Bindings
+
+description: |
+  Open-source CAN FD IP core developed at the Czech Technical University in Prague
+
+  The core sources and documentation on project page
+    [1] sources : https://gitlab.fel.cvut.cz/canbus/ctucanfd_ip_core
+    [2] datasheet : https://canbus.pages.fel.cvut.cz/ctucanfd_ip_core/doc/Datasheet.pdf
+
+  Integration in Xilinx Zynq SoC based system together with
+  OpenCores SJA1000 compatible controllers
+    [3] project : https://gitlab.fel.cvut.cz/canbus/zynq/zynq-can-sja1000-top
+  Martin Jerabek dimploma thesis with integration and testing
+  framework description
+    [4] PDF : https://dspace.cvut.cz/bitstream/handle/10467/80366/F3-DP-2019-Jerabek-Martin-Jerabek-thesis-2019-canfd.pdf
+
+maintainers:
+  - Pavel Pisa <pisa@....felk.cvut.cz>
+  - Ondrej Ille <ondrej.ille@...il.com>
+  - Martin Jerabek <martin.jerabek01@...il.com>
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - const: ctu,ctucanfd-2
+          - const: ctu,ctucanfd
+      - const: ctu,ctucanfd
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    description: |
+      phandle of reference clock (100 MHz is appropriate
+      for FPGA implementation on Zynq-7000 system).
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+
+additionalProperties: false
+
+examples:
+  - |
+    ctu_can_fd_0: can@...30000 {
+      compatible = "ctu,ctucanfd";
+      interrupts = <0 30 4>;
+      clocks = <&clkc 15>;
+      reg = <0x43c30000 0x10000>;
+    };
-- 
2.35.1