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refactor(spi_flash): reorganize header files and improve API encapsulation

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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
This commit is contained in:
Xiao Xufeng
2026-01-29 03:28:30 +08:00
parent 170061e971
commit 3411286544
78 changed files with 371 additions and 220 deletions
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components/esp_system/system_init_fn.txt
+1 -1
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@@ -113,7 +113,7 @@ SECONDARY: 151: nvs_sec_provider_register_hmac_scheme in components/nvs_sec_prov
# the rest of the components which are initialized from startup_funcs.c
# [refactor-todo]: move init calls into respective components
SECONDARY: 201: init_pm in components/esp_system/startup_funcs.c on BIT(0)
SECONDARY: 202: init_pm_flash_freq_limit in components/esp_system/startup_funcs.c on BIT(0)
SECONDARY: 202: init_pm_flash_freq_limit in components/esp_pm/pm_c5_flash_freq_limit.c on BIT(0)
SECONDARY: 203: init_apb_dma in components/esp_system/startup_funcs.c on BIT(0)
SECONDARY: 204: init_coexist in components/esp_system/startup_funcs.c on BIT(0)
SECONDARY: 205: init_bootloader_offset in components/esp_system/startup_funcs.c on BIT(0)