dts/bindings/mtd/atmel,at45.yaml

# Copyright (c) 2020 Nordic Semiconductor ASA
# SPDX-License-Identifier: Apache-2.0

description: Atmel AT45 (or compatible) SPI flash

compatible: "atmel,at45"

include: [spi-device.yaml]

properties:
  jedec-id:
    type: uint8-array
    required: true
    description: JEDEC ID as manufacturer ID (1 byte) and device ID (2 bytes).

  size:
    type: int
    required: true
    description: Flash capacity in bits.

  sector-size:
    type: int
    required: true
    description: Flash sector size in bytes.

  block-size:
    type: int
    required: true
    description: Flash block size in bytes.

  page-size:
    type: int
    required: true
    description: Flash page size in bytes.

  use-udpd:
    type: boolean
    required: false
    description: |
      When set, the driver will use the Ultra-Deep Power-Down command instead
      of the default Deep Power-Down one to put the chip into low power mode.

      From the driver perspective, as it does not rely on the contents of the
      SRAM buffers in the chip, the difference between the Deep and Ultra-Deep
      Power-Down modes is that the chip consumes far less power in the latter
      but needs some more time to enter this mode and to exit from it.

  enter-dpd-delay:
    type: int
    required: false
    default: 0
    description: |
      Time, in nanoseconds, needed by the chip to enter the Deep Power-Down
      mode (or Ultra-Deep Power-Down mode when the "use-udpd" property is set)
      after the corresponding command is issued.

  exit-dpd-delay:
    type: int
    required: false
    default: 0
    description: |
      Time, in nanoseconds, needed by the chip to exit from the Deep Power-Down
      mode (or Ultra-Deep Power-Down mode when the "use-udpd" property is set)
      after the corresponding command is issued.

  reset-gpios:
    type: phandle-array
    required: false
    description: |
      The RESET pin of AT45 is active low.
      If connected directly the MCU pin should be configured
      as active low.

  wp-gpios:
    type: phandle-array
    required: false
    description: |
      The WP pin of AT45 is active low.
      If connected directly the MCU pin should be configured
      as active low.