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    from ecb9e03  fs/mmap: Update mmap documentation of possible return values
     add a68a39c  xtensa/esp32: Move internal heap to the beginning of region 2.
     add cba4492  arch/xtensa/esp32: Part of the ROM regions in middle of DRAM 
are not used, retrieve them as heap.
     add 5c7d041  arch/xtensa/esp32: In SMP case move the internal memory to 
region 3. Region 2 is only 15KB in SMP, so we don't have enough memory to play 
with.
     add 7fbc350  xtensa/esp32: Warn about unused memory regions.
     add 9cfc30f  memory_layout.h: Fix the start of region2 when a QEMU image 
generation is enabled.
     add 8389e83  esp32/memory_layout.h: Update the layout taking under 
consideration the changes to the heap regions and to the internal heap.
     add 2816082  arch/xtensa/esp32: ~6KB of memory at address 0x3ffae6f0 is 
not used by the ROM bootloader, add that to the heap as well.

No new revisions were added by this update.

Summary of changes:
 arch/xtensa/Kconfig                                |  14 +--
 arch/xtensa/include/esp32/memory_layout.h          | 102 +++++++++++++++++----
 arch/xtensa/src/esp32/esp32_allocateheap.c         |  58 +++++++++---
 arch/xtensa/src/esp32/esp32_imm.c                  |  16 +---
 .../esp32/esp32-devkitc/configs/aes/defconfig      |   2 +-
 .../esp32/esp32-devkitc/configs/leds/defconfig     |   2 +-
 .../esp32/esp32-devkitc/configs/mcp2515/defconfig  |   2 +-
 .../esp32/esp32-devkitc/configs/mmcsdspi/defconfig |   2 +-
 .../esp32/esp32-devkitc/configs/netnsh/defconfig   |   2 +-
 .../esp32/esp32-devkitc/configs/nsh/defconfig      |   2 +-
 .../esp32/esp32-devkitc/configs/ostest/defconfig   |   2 +-
 .../esp32/esp32-devkitc/configs/pm/defconfig       |   2 +-
 .../esp32/esp32-devkitc/configs/psram/defconfig    |   2 +-
 .../esp32/esp32-devkitc/configs/random/defconfig   |   2 +-
 .../esp32/esp32-devkitc/configs/smp/defconfig      |   2 +-
 .../esp32/esp32-devkitc/configs/spiflash/defconfig |   2 +-
 .../esp32/esp32-devkitc/configs/timer/defconfig    |   2 +-
 .../esp32/esp32-devkitc/configs/wapi/defconfig     |   2 +-
 .../esp32/esp32-devkitc/configs/wapi_smp/defconfig |   2 +-
 .../esp32/esp32-devkitc/configs/watchdog/defconfig |   2 +-
 .../esp32/esp32-devkitc/configs/watcher/defconfig  |   2 +-
 boards/xtensa/esp32/esp32-devkitc/src/esp32_boot.c |  14 +++
 .../esp32-ethernet-kit/configs/ethernet/defconfig  |   2 +-
 .../esp32/esp32-ethernet-kit/configs/nsh/defconfig |   2 +-
 .../esp32-ethernet-kit/configs/wapi/defconfig      |   2 +-
 .../esp32/esp32-ethernet-kit/src/esp32_boot.c      |  14 +++
 .../esp32-wrover-kit/configs/bmp180/defconfig      |   2 +-
 .../esp32/esp32-wrover-kit/configs/gpio/defconfig  |   2 +-
 .../esp32/esp32-wrover-kit/configs/leds/defconfig  |   2 +-
 .../esp32/esp32-wrover-kit/configs/nsh/defconfig   |   2 +-
 .../esp32/esp32-wrover-kit/configs/wapi/defconfig  |   2 +-
 .../xtensa/esp32/esp32-wrover-kit/src/esp32_boot.c |  14 +++
 32 files changed, 199 insertions(+), 83 deletions(-)

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