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+# 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: /schemas/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";
+ };