112 lines
2.9 KiB
YAML
112 lines
2.9 KiB
YAML
# Copyright (c) 2019 Nordic Semiconductor ASA
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# SPDX-License-Identifier: Apache-2.0
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description: |
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QSPI NOR flash supporting the JEDEC CFI interface.
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compatible: "nordic,qspi-nor"
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include: [base.yaml, "jedec,spi-nor-common.yaml"]
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on-bus: qspi
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properties:
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reg:
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required: true
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label:
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required: true
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jedec-id:
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required: true
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size:
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type: int
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required: false
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description: |
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The size in bits. Set this or size-in-bytes, but not both.
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size-in-bytes:
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type: int
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required: false
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description: |
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The size in bytes. Set this or size, but not both.
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# Match original driver NORDIC_QSPI_NOR_QE_BIT Kconfig default.
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quad-enable-requirements:
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default: "S1B6"
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readoc:
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type: string
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required: false
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enum:
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- "fastread" # Single data line SPI, FAST_READ (0x0B)
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- "read2o" # Dual data line SPI, READ2O (0x3B)
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- "read2io" # Dual data line SPI, READ2IO (0xBB)
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- "read4o" # Quad data line SPI, READ4O (0x6B)
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- "read4io" # Quad data line SPI, READ4IO (0xEB)
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description: |
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Specify the number of data lines and opcode used for reading.
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If not provided fastread will be selected.
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writeoc:
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type: string
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required: false
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enum:
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- "pp" # Single data line SPI, PP (0x02)
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- "pp2o" # Dual data line SPI, PP2O (0xA2)
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- "pp4o" # Quad data line SPI, PP4O (0x32)
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- "pp4io" # Quad data line SPI, PP4IO (0x38)
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description: |
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Specify the number of data lines and opcode used for writing.
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If not provided pp will be selected.
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address-size-32:
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type: boolean
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required: false
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description: |
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Set to indicate that 32-bit addressing is to be used.
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If not specified 24-bit addressing will be used.
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ppsize-512:
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type: boolean
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required: false
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description: |
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Set to indicate that the write opcode operates on 512-byte pages.
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If not specified the write opcode operates on 256-byte pages.
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sck-delay:
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type: int
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required: false
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default: 0
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description: |
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Number of clock cycles CSn must be asserted before it can go low
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again, specified in nanoseconds.
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rx-delay:
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type: int
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required: false
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description: |
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Number of clock cycles from the rising edge of the SPI clock
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until the input serial data is sampled.
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cpha:
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type: boolean
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required: false
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description: |
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Set to indicate phase starts with asserted half-phase (CPHA=1).
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For this driver using this property requires also using cpol.
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cpol:
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type: boolean
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required: false
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description: |
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Set to indicate clock leading edge is falling (CPOL=1).
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For this driver using this property requires also using cpha.
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sck-frequency:
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type: int
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required: true
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description: |
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Maximum clock speed supported by the device, in Hz.
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