alex/esp-idf
1
0
Fork 0
mirror of https://github.com/espressif/esp-idf.git synced 2025-08-09 20:41:14 +00:00
Code Issues Packages Projects Releases Wiki Activity

feat(bootloader): add support to use MMU page size from app binary

Browse Source 
For the SoCs that support configurable MMU page size, it is possible
that the bootloader and application are built with different MMU page
size configuration. This mismatch is not supported at the moment and
application verification fails (at bootup or during OTA update).

Configuring MMU page size helps to optimize the flash space by having
smaller alignment and padding (secure) requirements. Please note that
the MMU page size is tied with the flash size configuration at the
moment (`ESPTOOLPY_FLASHSIZE_XMB`).

This MR ensures that application verification happens using the MMU page
size configured in its binary header. Thus, bootloader and application
can now have different MMU page sizes and different combinations shall
be supported.
This commit is contained in:
Mahavir Jain
2024-10-07 18:30:32 +05:30
parent ce6085349f
commit afa46c06a8
6 changed files with 64 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
components/bootloader_support/include/esp_image_format.h
View File

@@ -34,6 +34,7 @@ typedef struct {
uint32_t image_len; /* Length of image on flash, in bytes */
uint8_t image_digest[32]; /* appended SHA-256 digest */
uint32_t secure_version; /* secure version for anti-rollback, it is covered by sha256 (set if CONFIG_BOOTLOADER_APP_ANTI_ROLLBACK=y) */
uint32_t mmu_page_size; /* Flash MMU page size per binary header */
} esp_image_metadata_t;
typedef enum {