86 lines
2.2 KiB
Plaintext
86 lines
2.2 KiB
Plaintext
#
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# Copyright (c) 2018 Intel Corporation
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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menuconfig SPI_FLASH_W25QXXDV
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bool "SPI NOR Flash Winbond W25QXXDV"
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select FLASH_HAS_DRIVER_ENABLED
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depends on SPI
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if SPI_FLASH_W25QXXDV
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config SPI_FLASH_W25QXXDV_SPI_NAME
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string "SPI controller device name"
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config SPI_FLASH_W25QXXDV_DRV_NAME
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string "SPI flash device name"
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default "W25QXXDV"
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config SPI_FLASH_W25QXXDV_INIT_PRIORITY
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int
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default 80
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help
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Device driver initialization priority.
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Device is connected to SPI bus, it has to
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be initialized after SPI driver.
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config SPI_FLASH_W25QXXDV_SPI_FREQ_0
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int "SPI system frequency"
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default 8000000
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help
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This option sets the SPI controller's frequency. Beware this value
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depends on the SPI controller being used and also on the system
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clock.
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config SPI_FLASH_W25QXXDV_SPI_SLAVE
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int "SPI slave linked to SPI flash"
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help
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This option sets the SPI slave number the SPI controller has to switch
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to when dealing with WinBond SPI flash chip.
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config SPI_FLASH_W25QXXDV_GPIO_SPI_CS
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bool "Manage SPI CS through a GPIO pin"
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help
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This option is useful if one needs to manage SPI CS through a GPIO
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pin to by-pass the SPI controller's CS logic.
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config SPI_FLASH_W25QXXDV_GPIO_SPI_CS_DRV_NAME
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string "GPIO driver's name to use to drive SPI CS through"
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depends on SPI_FLASH_W25QXXDV_GPIO_SPI_CS
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help
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This option is mandatory to set which GPIO controller to use in order
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to actually emulate the SPI CS.
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config SPI_FLASH_W25QXXDV_GPIO_SPI_CS_PIN
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int "GPIO PIN to use to drive SPI CS through"
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default 0
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depends on SPI_FLASH_W25QXXDV_GPIO_SPI_CS
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help
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This option is mandatory to set which GPIO pin to use in order
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to actually emulate the SPI CS.
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config SPI_FLASH_W25QXXDV_GPIO_CS_WAIT_DELAY
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int "Delay time in us"
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default 0
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depends on SPI_FLASH_W25QXXDV_GPIO_SPI_CS
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help
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This is the wait delay (in us) to allow for CS switching to take effect
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config SPI_FLASH_W25QXXDV_FLASH_SIZE
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int "Flash size in bytes"
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default 2097152
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help
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This is the flash capacity in bytes.
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config SPI_FLASH_W25QXXDV_DEVICE_ID
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hex "Device ID in hex"
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default 0x00ef4015
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help
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This is the device ID of the flash chip to use, which is 0x00ef4015 for
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the W25QXXDV
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endif # SPI_FLASH_W25QXXDV
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