70 lines
1.7 KiB
YAML
70 lines
1.7 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/gnss/brcm,bcm4751.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Broadcom BCM4751 family GNSS Receiver
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maintainers:
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- Johan Hovold <johan@kernel.org>
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- Linus Walleij <linus.walleij@linaro.org>
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description:
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Broadcom GPS chips can be used over the UART or I2C bus. The UART
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bus requires CTS/RTS support. The number of the capsule is more
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elaborate than the compatibles BCM4751 may be printed
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BCM4751IFBG for example.
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allOf:
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- $ref: gnss-common.yaml#
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properties:
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compatible:
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enum:
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- brcm,bcm4751
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- brcm,bcm4752
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- brcm,bcm4753
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reg:
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description:
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The I2C Address, not required on UART buses.
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vdd-auxin-supply:
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description:
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Main voltage supply, pin name VDD_AUXIN, typically connected
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directly to a battery such as LiIon 3.8V battery or a 2.6V supply.
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vddio-supply:
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description:
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IO voltage supply, pin name VDDIO, typically 1.8V
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reset-gpios:
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maxItems: 1
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description: An optional active low reset line, should be flagged with
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GPIO_ACTIVE_LOW.
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enable-gpios:
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description: Enable GPIO line, connected to pins named REGPU or NSTANDBY.
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If the line is active low such as NSTANDBY, it should be tagged
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GPIO_ACTIVE_LOW.
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required:
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- compatible
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- enable-gpios
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unevaluatedProperties: false
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examples:
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- |
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#include <dt-bindings/gpio/gpio.h>
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serial {
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gnss {
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compatible = "brcm,bcm4751";
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vdd-auxin-supply = <&vbat>;
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reset-gpios = <&gpio0 15 GPIO_ACTIVE_LOW>;
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enable-gpios = <&gpio0 16 GPIO_ACTIVE_HIGH>;
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current-speed = <38400>;
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};
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};
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