| 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 | # Copyright (C) 2022 Microchip Technology, Inc. and its subsidiaries |
| 3 | %YAML 1.2 |
| 4 | --- |
| 5 | $id: http://devicetree.org/schemas/rtc/atmel,at91sam9260-rtt.yaml# |
| 6 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 7 | |
| 8 | title: Atmel AT91 RTT |
| 9 | |
| 10 | allOf: |
| 11 | - $ref: rtc.yaml# |
| 12 | |
| 13 | maintainers: |
| 14 | - Alexandre Belloni <alexandre.belloni@bootlin.com> |
| 15 | |
| 16 | properties: |
| 17 | compatible: |
| 18 | oneOf: |
| 19 | - items: |
| 20 | - const: atmel,at91sam9260-rtt |
| 21 | - items: |
| Tom Rini | 6bb92fc | 2024-05-20 09:54:58 -0600 | [diff] [blame] | 22 | - enum: |
| 23 | - microchip,sam9x60-rtt |
| 24 | - microchip,sam9x7-rtt |
| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 25 | - const: atmel,at91sam9260-rtt |
| 26 | - items: |
| 27 | - const: microchip,sama7g5-rtt |
| 28 | - const: microchip,sam9x60-rtt |
| 29 | - const: atmel,at91sam9260-rtt |
| 30 | |
| 31 | reg: |
| 32 | maxItems: 1 |
| 33 | |
| 34 | interrupts: |
| 35 | maxItems: 1 |
| 36 | |
| 37 | clocks: |
| 38 | maxItems: 1 |
| 39 | |
| 40 | atmel,rtt-rtc-time-reg: |
| 41 | $ref: /schemas/types.yaml#/definitions/phandle-array |
| 42 | items: |
| 43 | - items: |
| 44 | - description: Phandle to the GPBR node. |
| 45 | - description: Offset within the GPBR block. |
| 46 | description: |
| 47 | Should encode the GPBR register used to store the time base when the |
| 48 | RTT is used as an RTC. The first cell should point to the GPBR node |
| 49 | and the second one encodes the offset within the GPBR block (or in |
| 50 | other words, the GPBR register used to store the time base). |
| 51 | |
| 52 | required: |
| 53 | - compatible |
| 54 | - reg |
| 55 | - interrupts |
| 56 | - clocks |
| 57 | - atmel,rtt-rtc-time-reg |
| 58 | |
| 59 | unevaluatedProperties: false |
| 60 | |
| 61 | examples: |
| 62 | - | |
| 63 | #include <dt-bindings/interrupt-controller/irq.h> |
| 64 | |
| 65 | rtc@fffffd20 { |
| 66 | compatible = "atmel,at91sam9260-rtt"; |
| 67 | reg = <0xfffffd20 0x10>; |
| 68 | interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; |
| 69 | clocks = <&clk32k>; |
| 70 | atmel,rtt-rtc-time-reg = <&gpbr 0x0>; |
| 71 | }; |