| Message ID | 20210927023053.6728-4-chiawei_wang@aspeedtech.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | arm: aspeed: Add UART routing support | expand |
On Mon, 27 Sep 2021 10:30:51 +0800, Chia-Wei Wang wrote: > Add dt-bindings for Aspeed UART routing controller. > > Signed-off-by: Oskar Senft <osk@google.com> > Signed-off-by: Chia-Wei Wang <chiawei_wang@aspeedtech.com> > Reviewed-by: Rob Herring <robh@kernel.org> > --- > .../devicetree/bindings/mfd/aspeed-lpc.yaml | 4 ++ > .../bindings/soc/aspeed/uart-routing.yaml | 56 +++++++++++++++++++ > 2 files changed, 60 insertions(+) > create mode 100644 Documentation/devicetree/bindings/soc/aspeed/uart-routing.yaml > Applied, thanks!
> From: Rob Herring <robh@kernel.org> > Sent: Thursday, September 30, 2021 6:11 AM > > On Mon, 27 Sep 2021 10:30:51 +0800, Chia-Wei Wang wrote: > > Add dt-bindings for Aspeed UART routing controller. > > > > Signed-off-by: Oskar Senft <osk@google.com> > > Signed-off-by: Chia-Wei Wang <chiawei_wang@aspeedtech.com> > > Reviewed-by: Rob Herring <robh@kernel.org> > > --- > > .../devicetree/bindings/mfd/aspeed-lpc.yaml | 4 ++ > > .../bindings/soc/aspeed/uart-routing.yaml | 56 > +++++++++++++++++++ > > 2 files changed, 60 insertions(+) > > create mode 100644 > Documentation/devicetree/bindings/soc/aspeed/uart-routing.yaml > > > > Applied, thanks! Thanks! Hi Joel, Could you help to review the rest patches to see if they are ready to be merged into the linux-aspeed tree? Thanks. Regards, Chiawei
diff --git a/Documentation/devicetree/bindings/mfd/aspeed-lpc.yaml b/Documentation/devicetree/bindings/mfd/aspeed-lpc.yaml index 03d417762752..f1538038c045 100644 --- a/Documentation/devicetree/bindings/mfd/aspeed-lpc.yaml +++ b/Documentation/devicetree/bindings/mfd/aspeed-lpc.yaml @@ -142,6 +142,10 @@ patternProperties: - interrupts - snoop-ports + "^uart-routing@[0-9a-f]+$": + $ref: /schemas/soc/aspeed/uart-routing.yaml# + description: The UART routing control under LPC register space + required: - compatible - reg diff --git a/Documentation/devicetree/bindings/soc/aspeed/uart-routing.yaml b/Documentation/devicetree/bindings/soc/aspeed/uart-routing.yaml new file mode 100644 index 000000000000..6876407124dc --- /dev/null +++ b/Documentation/devicetree/bindings/soc/aspeed/uart-routing.yaml @@ -0,0 +1,56 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +# # Copyright (c) 2018 Google LLC +# # Copyright (c) 2021 Aspeed Technology Inc. +%YAML 1.2 +--- +$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>; + }; + };