2d4d6f05e6
The smallest region that can be erashed is one sector, so setting SPI_NOR_FLASH_LAYOUT_PAGE_SIZE=2048 will fail at runtime when the flash page API is used to erase a single (or misaligned) page. Add a compile-time check that the requested layout page size is erasable. Signed-off-by: Peter A. Bigot <pab@pabigot.com>
48 lines
1.4 KiB
Plaintext
48 lines
1.4 KiB
Plaintext
# Copyright (c) 2018 Savoir-Faire Linux.
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# SPDX-License-Identifier: Apache-2.0
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menuconfig SPI_NOR
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bool "SPI NOR Flash"
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select FLASH_HAS_DRIVER_ENABLED
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depends on SPI
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if SPI_NOR
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config SPI_NOR_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_NOR_CS_WAIT_DELAY
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int "Delay time in us"
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default 0
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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_NOR_FLASH_LAYOUT_PAGE_SIZE
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int "Page size to use for FLASH_LAYOUT feature"
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default 65536
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help
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When CONFIG_FLASH_PAGE_LAYOUT is used this driver will support
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that API. By default the page size corresponds to the block
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size (65536). Other options include the 32K-byte erase size
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(32768), the sector size (4096), or any non-zero multiple of the
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sector size.
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config SPI_NOR_IDLE_IN_DPD
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bool "Use Deep Power-Down mode when flash is not being accessed."
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help
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Where supported deep power-down mode can reduce current draw
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to as little as 0.1% of standby current. However it takes
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some milliseconds to enter and exit from this mode.
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Select this option for applications where device power
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management is not enabled, the flash remains inactive for
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long periods, and when used the impact of waiting for mode
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enter and exit delays is acceptable.
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endif # SPI_NOR
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