| # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) | |
| # # Copyright (c) 2018 Google LLC | |
| # # Copyright (c) 2021 Aspeed Technology Inc. | |
| %YAML 1.2 | |
| --- | |
| $id: http://devicetree.org/schemas/soc/aspeed/uart-routing.yaml# | |
| $schema: http://devicetree.org/meta-schemas/core.yaml# | |
| title: Aspeed UART Routing Controller | |
| maintainers: | |
| - Oskar Senft <osk@google.com> | |
| - Chia-Wei Wang <chiawei_wang@aspeedtech.com> | |
| description: | |
| The Aspeed UART routing control allow to dynamically route the inputs for | |
| the built-in UARTS and physical serial I/O ports. | |
| This allows, for example, to connect the output of UART to another UART. | |
| This can be used to enable Host <-> BMC communication via UARTs, e.g. to | |
| allow access to the Host's serial console. | |
| This driver is for the BMC side. The sysfs files allow the BMC userspace | |
| which owns the system configuration policy, to configure how UARTs and | |
| physical serial I/O ports are routed. | |
| properties: | |
| compatible: | |
| items: | |
| - enum: | |
| - aspeed,ast2400-uart-routing | |
| - aspeed,ast2500-uart-routing | |
| - aspeed,ast2600-uart-routing | |
| reg: | |
| maxItems: 1 | |
| required: | |
| - compatible | |
| additionalProperties: false | |
| examples: | |
| - | | |
| lpc: lpc@1e789000 { | |
| compatible = "aspeed,ast2600-lpc-v2", "simple-mfd", "syscon"; | |
| reg = <0x1e789000 0x1000>; | |
| #address-cells = <1>; | |
| #size-cells = <1>; | |
| ranges = <0x0 0x1e789000 0x1000>; | |
| uart_routing: uart-routing@98 { | |
| compatible = "aspeed,ast2600-uart-routing"; | |
| reg = <0x98 0x8>; | |
| }; | |
| }; |