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refactor(esp_system): deduplicate ROM fast wake RTC digest reservation

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The digest length and the condition that reserves it at the end of RTC RAM were
duplicated in seven places. Hold the reservation in a hidden Kconfig value that
is zero when the feature does not apply, so every consumer subtracts it
unconditionally, and derive ESP_SECURE_BOOT_DIGEST_LEN from it.
This commit is contained in:
harshal.patil
2026-07-31 10:54:32 +08:00
committed by wuzhenghui
parent f327a4d641
commit 6dd847c8dd
13 changed files with 57 additions and 87 deletions
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components/esp_system/ld/esp32c5/memory.ld.in
+1 -1
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@@ -89,7 +89,7 @@ MEMORY
* - Bootloader retain memory (for reboot counter, OTA info, etc.)
*
* +-----------------------------+ 0x50004000 (LP RAM end)
* | Secure Boot Image Digest | ( For ROM using, must keep it at the end ESP_SECURE_BOOT_DIGEST_LEN bytes of LP RAM)
* | Secure Boot Image Digest | ( For ROM using, must keep it at the end CONFIG_SECURE_BOOT_ROM_FAST_WAKE_RESERVE_SIZE bytes of LP RAM)
* | for fast wake secure boot. |
* |(only if CONFIG_SECURE_BOOT) |
* |- - - - - - - - - - - - - - -|