uart-routing.yaml

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    1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
    2 # # Copyright (c) 2018 Google LLC
    3 # # Copyright (c) 2021 Aspeed Technology Inc.
    4 %YAML 1.2
    5 ---
    6 $id: "http://devicetree.org/schemas/soc/aspeed/uart-routing.yaml#"
    7 $schema: "http://devicetree.org/meta-schemas/core.yaml#"
    8 
    9 title: Aspeed UART Routing Controller
   10 
   11 maintainers:
   12   - Oskar Senft <osk@google.com>
   13   - Chia-Wei Wang <chiawei_wang@aspeedtech.com>
   14 
   15 description:
   16   The Aspeed UART routing control allow to dynamically route the inputs for
   17   the built-in UARTS and physical serial I/O ports.
   18 
   19   This allows, for example, to connect the output of UART to another UART.
   20   This can be used to enable Host <-> BMC communication via UARTs, e.g. to
   21   allow access to the Host's serial console.
   22 
   23   This driver is for the BMC side. The sysfs files allow the BMC userspace
   24   which owns the system configuration policy, to configure how UARTs and
   25   physical serial I/O ports are routed.
   26 
   27 properties:
   28   compatible:
   29     items:
   30       - enum:
   31           - aspeed,ast2400-uart-routing
   32           - aspeed,ast2500-uart-routing
   33           - aspeed,ast2600-uart-routing
   34   reg:
   35     maxItems: 1
   36 
   37 required:
   38   - compatible
   39 
   40 additionalProperties: false
   41 
   42 examples:
   43   - |
   44     lpc: lpc@1e789000 {
   45         compatible = "aspeed,ast2600-lpc-v2", "simple-mfd", "syscon";
   46         reg = <0x1e789000 0x1000>;
   47 
   48         #address-cells = <1>;
   49         #size-cells = <1>;
   50         ranges = <0x0 0x1e789000 0x1000>;
   51 
   52         uart_routing: uart-routing@98 {
   53             compatible = "aspeed,ast2600-uart-routing";
   54             reg = <0x98 0x8>;
   55         };
   56     };

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/soc/aspeed/uart-routing.yaml

FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/soc/aspeed/uart-routing.yaml