diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml | |
parent | Initial commit. (diff) | |
download | linux-430c2fc249ea5c0536abd21c23382884005c9093.tar.xz linux-430c2fc249ea5c0536abd21c23382884005c9093.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml')
-rw-r--r-- | Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml b/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml new file mode 100644 index 000000000..75ebc9952 --- /dev/null +++ b/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml @@ -0,0 +1,75 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +# Copyright 2019 BayLibre, SAS +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/serial/amlogic,meson-uart.yaml#" +$schema: "http://devicetree.org/meta-schemas/core.yaml#" + +title: Amlogic Meson SoC UART Serial Interface + +maintainers: + - Neil Armstrong <narmstrong@baylibre.com> + +description: | + The Amlogic Meson SoC UART Serial Interface is present on a large range + of SoCs, and can be present either in the "Always-On" power domain or the + "Everything-Else" power domain. + + The particularity of the "Always-On" Serial Interface is that the hardware + is active since power-on and does not need any clock gating and is usable + as very early serial console. + +properties: + compatible: + oneOf: + - description: Always-on power domain UART controller + items: + - enum: + - amlogic,meson6-uart + - amlogic,meson8-uart + - amlogic,meson8b-uart + - amlogic,meson-gx-uart + - const: amlogic,meson-ao-uart + - description: Everything-Else power domain UART controller + enum: + - amlogic,meson6-uart + - amlogic,meson8-uart + - amlogic,meson8b-uart + - amlogic,meson-gx-uart + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + items: + - description: external xtal clock identifier + - description: the bus core clock, either the clk81 clock or the gate clock + - description: the source of the baudrate generator, can be either the xtal or the pclk + + clock-names: + items: + - const: xtal + - const: pclk + - const: baud + +required: + - compatible + - reg + - interrupts + - clocks + - clock-names + +additionalProperties: false + +examples: + - | + serial@84c0 { + compatible = "amlogic,meson-gx-uart"; + reg = <0x84c0 0x14>; + interrupts = <26>; + clocks = <&xtal>, <&pclk>, <&xtal>; + clock-names = "xtal", "pclk", "baud"; + }; |