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review.trustedfirmware.org / mirror / mcuboot / 1d0467e8339f91b0dac9cb0bcedb131cdf7ac63d
commit1d0467e8339f91b0dac9cb0bcedb131cdf7ac63d[log] [tgz]
authorJerzy Kasenberg <jerzy.kasenberg@codecoup.pl>Sat Nov 21 23:45:34 2020 +0100
committerFabio Utzig <utzig@utzig.org>Wed Nov 25 12:36:10 2020 -0300
tree0d2a981d04fe4ef28ac869e97286aa08e409deb7
parenta8e12dae381080e898cea0c6f7408009b0163f9f [diff]
boot/mynewt: De-initialize peripherals before calling app

mynewt code calls hal_bsp_init() at start of bootloader.
This may initialize some resources (timer/uart/dma).
mynewt has now hal_bsp_deinit() function that should be called
before application is executed.
This new function allows to stop resources that were started.

This can stop cputimer which was started including enabled
interrupt. This timer interrupt was very likely to fire
for STM devices that has 16 bits timer used, when mcuboot
did not started LSE and application wanted to.
Starting LSE oscillator takes so much time in some cases
that timer interrupt will execute MCU from mcuboot vector
after RAM was already cleared by startup code and that
would lead to crash loop.
Blocking interrupts before starting application would
also help but leaving peripherals in reset state
seems reasonable.

Signed-off-by: Jerzy Kasenberg <jerzy.kasenberg@codecoup.pl>
1 file changed
tree: 0d2a981d04fe4ef28ac869e97286aa08e409deb7
  1. .github/
  2. boot/
  3. ci/
  4. docs/
  5. ext/
  6. ptest/
  7. samples/
  8. scripts/
  9. sim/
  10. testplan/
  11. zephyr/
  12. .gitignore
  13. .gitmodules
  14. .mbedignore
  15. .travis.yml
  16. enc-aes128kw.b64
  17. enc-ec256-priv.pem
  18. enc-ec256-pub.pem
  19. enc-rsa2048-priv.pem
  20. enc-rsa2048-pub.pem
  21. enc-x25519-priv.pem
  22. enc-x25519-pub.pem
  23. go.mod
  24. LICENSE
  25. NOTICE
  26. project.yml
  27. README.md
  28. repository.yml
  29. root-ec-p256-pkcs8.pem
  30. root-ec-p256.pem
  31. root-ed25519.pem
  32. root-rsa-2048.pem
  33. root-rsa-3072.pem
README.md

mcuboot

Package on PyPI Coverity Scan Build Status Build Status (Sim) Build Status (Mynewt) Publishing Status (imgtool) Build Status (Travis CI) Apache 2.0

This is mcuboot version 1.7.0

MCUboot is a secure bootloader for 32-bit MCUs. The goal of MCUboot is to define a common infrastructure for the bootloader, system flash layout on microcontroller systems, and to provide a secure bootloader that enables simple software upgrades.

MCUboot is operating system and hardware independent and relies on hardware porting layers from the operating. Currently, mcuboot works with both the Apache Mynewt and Zephyr operating systems, but more ports are planned in the future. RIOT is currently supported as a boot target with a complete port planned.

Using MCUboot

Instructions for different operating systems can be found here:

Roadmap

The issues being planned and worked on are tracked using GitHub issues. To participate please visit:

MCUBoot GitHub Issues

Issues were previously tracked on MCUboot JIRA , but it is now deprecated.

Browsing

Information and documentation on the bootloader are stored within the source.

It was previously also documented on confluence: MCUBoot Confluence however, it is now deprecated and not currently maintained

For more information in the source, here are some pointers:

  • boot/bootutil: The core of the bootloader itself.
  • boot/boot_serial: Support for serial upgrade within the bootloader itself.
  • boot/zephyr: Port of the bootloader to Zephyr
  • boot/mynewt: Mynewt bootloader app
  • imgtool: A tool to securely sign firmware images for booting by mcuboot.
  • sim: A bootloader simulator for testing and regression

Joining

Developers welcome!