53e17c4c22
SPI driver for Microchip MEC5 HAL based QSPI controller. QSPI hardware supports full duplex, dual, and quad operation. MEC5 QSPI controller also includes three local DMA channels per direction to off load firmware. The driver API supports full or half-duplex. Due to QSPI hardware not supporting one wire half-duplex, this driver supports full-duplex only. QSPI hardware design requires it to control chip select and current hardware supports up to two chip selects. Zephyr's SPI DT macros store the child SPI device's reg properity as the "slave" member of the SPI configuration structure. The driver uses the "slave" value as the chip select. Additional timing settings specific to SPI flash devices are in a new SPI device YAM file: "microchip,mec5-qspi-device.yaml" which includes the standard "spi-device.yaml". If the new YAML is not used, the QSPI controller will use default timing values for chip select and I/O line taps. Signed-off-by: Scott Worley <scott.worley@microchip.com>
13 lines
295 B
Plaintext
13 lines
295 B
Plaintext
# Microchip MEC5 QSPI
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# Copyright (c) 2025 Microchip Technology Inc.
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# SPDX-License-Identifier: Apache-2.0
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config SPI_MEC5_QSPI
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bool "Microchip MEC5 QSPI driver"
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default y
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depends on DT_HAS_MICROCHIP_MEC5_QSPI_ENABLED
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select PINCTRL
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help
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Enable support for Microchip MEC5 QSPI driver.
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