esp-idf/components/bootloader_support
Michael (XIAO Xufeng) d4fd54f8ce spi_flash: fix the corruption of ROM after calling bootloader_execute_flash_command
The user register, especially dummy related ones, needs to be restored, otherwise the ROM function will not work.

Introduced in dd40123129bc5670ae081c31d519907f0125e4db.
2021-10-15 02:18:03 +08:00
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Bootloader Support Component
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Overview
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"Bootloader support" contains APIs which are used by the bootloader but are also needed for the main app.

Code in this component needs to be aware of being executed in a bootloader environment (no RTOS available, BOOTLOADER_BUILD macro set) or in an esp-idf app environment (RTOS running, need locking support.)