esp-idf

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nilesh.kale 9b243dcf26 fix(esp_hw_support): Keep D-ROM PMP entry so newer apps boot on old bootloaders

ESP32-C6/H2 bootloaders <= v5.2.1 configure and lock PMP entries 3-4 as their
D-ROM region; a locked PMP entry cannot be reconfigured until CPU reset.
Commit 366e4ee944 ("Remove redundant PMP entry for ROM region") dropped the
D-ROM entry, and commit d4167fea60 (which also restructured C6/H2 PMP setup)
then renumbered the regions down, placing the application IRAM/DRAM split on
entries 3-4. On an already-deployed older bootloader those entries are locked,
so IRAM never gains execute permission and the chip resets before app_main()
(GitHub issue #18769).

Restore the separate (redundant) D-ROM PMP entry on indices 3-4 so the
application IRAM/DRAM split stays on entries 5-7, clear of the locked range.
This keeps newer applications bootable on older bootloaders.

Closes https://github.com/espressif/esp-idf/issues/18769

2026-07-03 20:57:04 +05:30

esp32

fix(iomux): move clock source gating to IOMUX consumers

2026-05-22 19:10:08 +08:00

esp32c2

fix(iomux): move clock source gating to IOMUX consumers

2026-05-22 19:10:08 +08:00

esp32c3

fix(iomux): move clock source gating to IOMUX consumers

2026-05-22 19:10:08 +08:00

esp32c5

feat(esp_hw_support): support PMU clock ICG management for esp32s31