| # Copyright (c) 2020, Linaro limited |
| # SPDX-License-Identifier: Apache-2.0 |
| |
| description: | |
| STM32 QSPI Flash controller supporting the JEDEC CFI interface |
| |
| Representation of a serial flash on a quadspi bus: |
| |
| mx25r6435f: qspi-nor-flash@0 { |
| compatible = "st,stm32-qspi-nor"; |
| label = "MX25R6435F"; |
| reg = <0>; |
| qspi-max-frequency = <80000000>; |
| size = <0x4000000>; |
| reset-gpios = <&gpiod 3 GPIO_ACTIVE_LOW>; |
| reset-gpios-duration = <1>; |
| spi-bus-width = <4>; |
| status = "okay"; |
| }; |
| |
| compatible: "st,stm32-qspi-nor" |
| |
| include: ["flash-controller.yaml", "jedec,jesd216.yaml"] |
| |
| on-bus: qspi |
| |
| properties: |
| reg: |
| required: true |
| qspi-max-frequency: |
| type: int |
| required: true |
| description: Maximum clock frequency of device's QSPI interface in Hz |
| label: |
| required: true |
| size: |
| required: true |
| description: Flash Memory size in bits |
| reset-gpios: |
| type: phandle-array |
| required: false |
| description: RESETn pin |
| reset-gpios-duration: |
| type: int |
| required: false |
| description: The duration (in ms) for the flash memory reset pulse |
| spi-bus-width: |
| type: int |
| required: false |
| description: The width of (Q)SPI bus to which flash memory is connected. |
| Now only value of 4 (when using SIO[0123]) is supported. |
