This commit reorganizes SPI flash header files to better reflect their
visibility and intended usage:
1. Rename `esp_flash_port/` to `esp_flash_chips/`:
- Better reflects that these headers are for chip driver implementations
- All chip driver headers moved to `esp_flash_chips/` directory
- Added README.md explaining semi-public nature of these headers
2. Move internal headers to `esp_private/`:
- `esp_flash_internal.h` -> `esp_private/esp_flash_internal.h`
- `memspi_host_driver.h` -> `esp_private/memspi_host_driver.h`
3. Move chip driver related headers to `esp_flash_chips/`:
- `esp_private/esp_flash_types.h` -> `esp_flash_chips/esp_flash_types.h`
- `spi_flash/spi_flash_defs.h` -> `esp_flash_chips/spi_flash_defs.h`
- `spi_flash_override.h` -> `esp_flash_chips/spi_flash_override.h`
- All `spi_flash_chip_*.h` headers moved to `esp_flash_chips/`
4. Code improvements:
- Remove unused includes (e.g., `spi_flash_override.h` from `cache_utils.c`)
- Use public API `esp_flash_get_size()` instead of direct member access
- Add `esp_flash_is_quad_mode` to linker.lf for IRAM placement
5. Documentation updates:
- Add README.md in `esp_flash_chips/` explaining semi-public headers
- Update programming guide with warnings about internal headers
- Update both English and Chinese documentation
6. Update all references across the codebase:
- Update includes in `spi_flash` component
- Update `bootloader_support`, `app_update`, `esp_tee`, `espcoredump`
- Update example projects
Breaking changes:
- Headers moved to new locations require include path updates
- `custom_flash_driver` example temporarily disabled until external
components are updated
Add a new example showcasing how to obtain and interpret statistics
about the usage of an NVS partition.
Also demonstrates how stats change after writing some key-value pairs
in 2 separate namespaces.
feat(sdspi): Add an option to modify the waiting time for MISO before sending next command
Closes IDFGH-15977 and IDFGH-9089
See merge request espressif/esp-idf!41175
Ensure that enum values are used When assigning `pull_up_en` and `pull_down_en`
fields of `gpio_config_t`. Helps avoid `invalid conversion` errors when
building those code snippets in C++.
feat(storage): Update emmc and perf_benchmark example to work with ESP32-P4, fix SDMMC slot deinit bug in legacy driver
Closes IDF-13394 and IDF-13483
See merge request espressif/esp-idf!39826
Adam Múdry
Tomáš Rohlínek
Xiao Xufeng
igor.udot
Ashish Sharma
C.S.M
wanckl
Alexey Lapshin
Martin Vychodil
Marius Vikhammer
armando
Martin Havlik
morris
Peter Dragun
Marek Fiala
Darian Leung
gaoxu
sonika.rathi
Chen Ji Chang