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-rw-r--r-- | Documentation/devicetree/bindings/serial/brcm,bcm7271-uart.yaml | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/serial/brcm,bcm7271-uart.yaml b/Documentation/devicetree/bindings/serial/brcm,bcm7271-uart.yaml new file mode 100644 index 000000000..6d176588d --- /dev/null +++ b/Documentation/devicetree/bindings/serial/brcm,bcm7271-uart.yaml @@ -0,0 +1,95 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/serial/brcm,bcm7271-uart.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Broadcom 8250 based serial port devicetree bindings + +maintainers: + - Al Cooper <alcooperx@gmail.com> + +allOf: + - $ref: serial.yaml# + +description: |+ + The Broadcom UART is based on the basic 8250 UART but with + enhancements for more accurate high speed baud rates and support + for DMA. + +properties: + compatible: + items: + - enum: + - brcm,bcm7271-uart + - brcm,bcm7278-uart + + reg: + minItems: 1 + maxItems: 5 + + reg-names: + description: The UART register block and optionally the DMA register blocks. + oneOf: + - items: + - const: uart + - items: + - const: uart + - const: dma_arb + - const: dma_rx + - const: dma_tx + - const: dma_intr2 + + clocks: + minItems: 1 + + clock-names: + const: sw_baud + + interrupts: + minItems: 1 + maxItems: 2 + + interrupt-names: + description: The UART interrupt and optionally the DMA interrupt. + minItems: 1 + items: + - const: uart + - const: dma + +required: + - compatible + - reg + - reg-names + - clocks + - clock-names + - interrupts + - interrupt-names + +unevaluatedProperties: false + +examples: + - | + serial@840d000 { + compatible = "brcm,bcm7271-uart"; + reg = <0x840d000 0x20>; + reg-names = "uart"; + interrupts = <0x0 0x62 0x4>; + interrupt-names = "uart"; + clocks = <&scmi_clk 190>; + clock-names = "sw_baud"; + }; + + serial@840e000 { + compatible = "brcm,bcm7271-uart"; + reg = <0x840e000 0x20>, + <0x840e080 0x8>, + <0x840e100 0xa8>, + <0x840e200 0x4c>, + <0x840e300 0x30>; + reg-names = "uart", "dma_arb", "dma_rx", "dma_tx", "dma_intr2"; + interrupts = <0x0 0x62 0x4>, <0x0 0x75 0x4>; + interrupt-names = "uart", "dma"; + clocks = <&scmi_clk 190>; + clock-names = "sw_baud"; + }; |