| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/serial/brcm,bcm7271-uart.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Broadcom 8250 based serial port |
| 8 | |
| 9 | maintainers: |
| 10 | - Al Cooper <alcooperx@gmail.com> |
| 11 | |
| 12 | allOf: |
| 13 | - $ref: serial.yaml# |
| 14 | |
| 15 | description: |+ |
| 16 | The Broadcom UART is based on the basic 8250 UART but with |
| 17 | enhancements for more accurate high speed baud rates and support |
| 18 | for DMA. |
| 19 | |
| 20 | properties: |
| 21 | compatible: |
| 22 | items: |
| 23 | - enum: |
| 24 | - brcm,bcm7271-uart |
| 25 | - brcm,bcm7278-uart |
| 26 | |
| 27 | reg: |
| 28 | minItems: 1 |
| 29 | maxItems: 5 |
| 30 | |
| 31 | reg-names: |
| 32 | description: The UART register block and optionally the DMA register blocks. |
| 33 | oneOf: |
| 34 | - items: |
| 35 | - const: uart |
| 36 | - items: |
| 37 | - const: uart |
| 38 | - const: dma_arb |
| 39 | - const: dma_rx |
| 40 | - const: dma_tx |
| 41 | - const: dma_intr2 |
| 42 | |
| 43 | clocks: |
| 44 | minItems: 1 |
| 45 | |
| 46 | clock-names: |
| 47 | const: sw_baud |
| 48 | |
| 49 | interrupts: |
| 50 | minItems: 1 |
| 51 | maxItems: 2 |
| 52 | |
| 53 | interrupt-names: |
| 54 | description: The UART interrupt and optionally the DMA interrupt. |
| 55 | minItems: 1 |
| 56 | items: |
| 57 | - const: uart |
| 58 | - const: dma |
| 59 | |
| 60 | required: |
| 61 | - compatible |
| 62 | - reg |
| 63 | - reg-names |
| 64 | - clocks |
| 65 | - clock-names |
| 66 | - interrupts |
| 67 | - interrupt-names |
| 68 | |
| 69 | unevaluatedProperties: false |
| 70 | |
| 71 | examples: |
| 72 | - | |
| 73 | serial@840d000 { |
| 74 | compatible = "brcm,bcm7271-uart"; |
| 75 | reg = <0x840d000 0x20>; |
| 76 | reg-names = "uart"; |
| 77 | interrupts = <0x0 0x62 0x4>; |
| 78 | interrupt-names = "uart"; |
| 79 | clocks = <&scmi_clk 190>; |
| 80 | clock-names = "sw_baud"; |
| 81 | }; |
| 82 | |
| 83 | serial@840e000 { |
| 84 | compatible = "brcm,bcm7271-uart"; |
| 85 | reg = <0x840e000 0x20>, |
| 86 | <0x840e080 0x8>, |
| 87 | <0x840e100 0xa8>, |
| 88 | <0x840e200 0x4c>, |
| 89 | <0x840e300 0x30>; |
| 90 | reg-names = "uart", "dma_arb", "dma_rx", "dma_tx", "dma_intr2"; |
| 91 | interrupts = <0x0 0x62 0x4>, <0x0 0x75 0x4>; |
| 92 | interrupt-names = "uart", "dma"; |
| 93 | clocks = <&scmi_clk 190>; |
| 94 | clock-names = "sw_baud"; |
| 95 | }; |