360d70a91e
This includes a basic driver for built-in flash on the Texas Intruments
SimpleLink CC13xx/CC26xx SoC series.
The driver makes use of driverlib HAL from TI's SDK and was tested on
two LaunchXL development boards with CC1352R and CC2652R SoCs:
- CC1352R1 LaunchXL
- CC26x2R1 LaunchXL
Tests were done using:
- flash shell sample (samples/drivers/flash_shell)
- littlefs filesystem sample (samples/subsys/fs/littlefs)*
- MCUboot (bootloader/mcuboot/boot/zephyr)*
* additional changes in DTS for the boards were required (partitions
table) and are not part of this changeset (will be introduced later)
Some additional information about the implementation:
1. TI's Technical Reference Manual for CC13x2 and CC26x2 points out that
"An individual 64-bit word can be programmed to change bits 1 to 0"
but it seems this 'alignment' requirement is handled internally by
the ROM function and thus 'write-block-size' is set to 1.
2. Interrupts, VIMS and line buffers are disabled during flash content
update (write or erase) and restored afterwards as recommended by TI.
3. Only RAM to flash write is supported (source of data to be written to
flash can't point to flash).
4. The driver doesn't take care of flash sector protection disable as
that functionality is handled by CCFG. Write or erase requests which
refer to a protected area will fail.
Signed-off-by: Piotr Dymacz <pepe2k@gmail.com>
107 lines
2.4 KiB
Text
107 lines
2.4 KiB
Text
# Flash driver configuration options
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# Copyright (c) 2016 Intel Corporation
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# SPDX-License-Identifier: Apache-2.0
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#
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# Flash driver
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#
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config FLASH_HAS_DRIVER_ENABLED
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bool
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help
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This option is enabled when any flash driver is enabled.
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config FLASH_HAS_PAGE_LAYOUT
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bool
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help
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This option is enabled when the SoC flash driver supports
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retrieving the layout of flash memory pages.
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config FLASH_JESD216
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bool
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help
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Selected by drivers that support JESD216-compatible flash
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devices to enable building a common support module.
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config FLASH_JESD216_API
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bool "Provide API to read JESD216 flash parameters"
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depends on FLASH_JESD216
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help
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This option extends the Zephyr flash API with the ability
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to access the Serial Flash Discoverable Parameter section
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allowing runtime determination of serial flash parameters
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for flash drivers that expose this capability.
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menuconfig FLASH
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bool "Flash hardware support"
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help
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Enable support for the flash hardware.
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if FLASH
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module = FLASH
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module-str = flash
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source "subsys/logging/Kconfig.template.log_config"
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config FLASH_SHELL
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bool "Flash shell"
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depends on SHELL && FLASH_PAGE_LAYOUT
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default y
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help
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Enable the flash shell with flash related commands such as test,
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write, read and erase.
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config FLASH_PAGE_LAYOUT
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bool "API for retrieving the layout of pages"
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depends on FLASH_HAS_PAGE_LAYOUT
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default y
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help
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Enables API for retrieving the layout of flash memory pages.
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config FLASH_INIT_PRIORITY
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int "Flash init priority"
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default KERNEL_INIT_PRIORITY_DEVICE
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help
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Flash driver device initialization priority. This initialization
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priority is used unless the driver implementation has its own
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initialization priority
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source "drivers/flash/Kconfig.b91"
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source "drivers/flash/Kconfig.cc13xx_cc26xx"
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source "drivers/flash/Kconfig.at45"
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source "drivers/flash/Kconfig.esp32"
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source "drivers/flash/Kconfig.it8xxx2"
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source "drivers/flash/Kconfig.nrf"
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source "drivers/flash/Kconfig.lpc"
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source "drivers/flash/Kconfig.mcux"
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source "drivers/flash/Kconfig.nios2_qspi"
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source "drivers/flash/Kconfig.gecko"
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source "drivers/flash/Kconfig.nor"
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source "drivers/flash/Kconfig.stm32"
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source "drivers/flash/Kconfig.stm32_qspi"
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source "drivers/flash/Kconfig.stm32_ospi"
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source "drivers/flash/Kconfig.sam0"
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source "drivers/flash/Kconfig.sam"
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source "drivers/flash/Kconfig.simulator"
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source "drivers/flash/Kconfig.rv32m1"
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source "drivers/flash/Kconfig.nordic_qspi_nor"
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endif # FLASH
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