13 lines
508 B
Plaintext
13 lines
508 B
Plaintext
# Copyright (c) 2017 Linaro Ltd.
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# SPDX-License-Identifier: Apache-2.0
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config GPIO_MMIO32
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bool
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help
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This is a driver for accessing a simple, fixed purpose, 32-bit
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memory-mapped i/o register using the same APIs as GPIO drivers. This
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is useful when an SoC or board has registers that aren't part of a
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GPIO IP block and these registers are used to control things that
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Zephyr normally expects to be specified using a GPIO pin, e.g. for
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driving an LED, or chip-select line for an SPI device.
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