Before:
The cache won't be disabled when XIP on psram. But during flash
erasing/programming, read data will be courrupt.
When XIP in psram is enabled, the image is not mapped to the cache so
usually there will be no flash access. The only way to read from flash
is via the driver or use mmap. The driver has protection during erasing,
while th mmap region not.
Now:
Mmap APIs provide a flag to make mmap->unmap region mutually exclusive
to flash erase/programming when XIP from psram. SPI Flash write APIs
will benefit from this. When the flag is used, no concurrent access to
mapped region will happen while writing; otherwise the cache will be
disable to avoid data corruption.
Most ESP-IDF APIs calls mmap with this flag. As for users calling
mmap-like APIs directly, they can choose whether to enable this by a
flag.
Closes https://github.com/espressif/esp-idf/issues/14897
The TLSF ROM patch code (rom_patch_tlsf.c, rom_patch_multi_heap.c),
their headers, and the per-target *.rom.heap.ld linker scripts are
semantically owned by the heap component, not esp_rom. Move them
accordingly:
- components/esp_rom/patches/esp_rom_tlsf.c
→ components/heap/rom_patches/rom_patch_tlsf.c
- components/esp_rom/patches/esp_rom_multi_heap.c
→ components/heap/rom_patches/rom_patch_multi_heap.c
- components/esp_rom/include/esp_rom_tlsf.h
→ components/heap/rom_patches/include/rom_patch_tlsf.h
- components/esp_rom/include/esp_rom_multi_heap.h
→ components/heap/rom_patches/include/rom_patch_multi_heap.h
- components/esp_rom/<target>/ld/<target>.rom.heap.ld (×8)
→ components/heap/port/<target>/ld/<target>.rom.heap.ld
Update heap/CMakeLists.txt to:
- use target_linker_script() directly for *.rom.heap.ld
- guard post-registration ROM patch setup with NOT BOOTLOADER_BUILD
- drop stale CONFIG_HEAP_TLSF_CHECK_PATCH symbol reference
- drop esp_rom_include_multi_heap_patch from TLSF_CHECK_PATCH guard
Remove the corresponding entries from esp_rom/CMakeLists.txt.
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
nilesh.kale
Xiao Xufeng
harshal.patil
Mahavir Jain
Song Ruo Jing
Jiang Jiang Jian
Jack
hebinglin
wanglei
Marius Vikhammer
Guillaume Souchere
morris
Konstantin Kondrashov
Wu Zheng Hui
Chen Chen
Chen Jichang
C.S.M
Alexey Lapshin
armando
gaoxu
wanckl