[fastboot] Reset USB on `fastboot boot` or `fastboot continue`

Perform a full USB reset before fastboot continue/fastboot boot to
remove fastboot from the USB descriptor, so that host won't see the
device in fastboot mode.

Test: Stop after fastboot continue/boot and run `fastboot devices`
Bug: b/327281431
Change-Id: I156096549b1665fb5691f6a699ac5910531b42d8
Reviewed-on: https://turquoise-internal-review.googlesource.com/c/third_party/u-boot/+/814015
Reviewed-by: Yecheng Zhao <zyecheng@google.com>
GitOrigin-RevId: 44f3d5d4c3598cfdeaf3fbecda2c6f6c90f40741
1 file changed
tree: a28fb4041bd4293af5207e672340db6dfc7de6b8
  1. api/
  2. arch/
  3. bl2/
  4. bl30/
  5. bl31/
  6. bl31_1.3/
  7. board/
  8. common/
  9. configs/
  10. disk/
  11. doc/
  12. drivers/
  13. dts/
  14. examples/
  15. fip/
  16. fs/
  17. include/
  18. lib/
  19. Licenses/
  20. net/
  21. post/
  22. scripts/
  23. test/
  24. tools/
  25. vim3_aml_tools/
  26. .checkpatch.conf
  27. .clang-format
  28. .gitignore
  29. .mailmap
  30. amlogic_help.sh
  31. build_uboot_vim3_zircon.sh
  32. check_compile.sh
  33. config.mk
  34. fuchsia_upload.py
  35. Kbuild
  36. Kconfig
  37. MAINTAINERS
  38. MAKEALL
  39. Makefile
  40. mk
  41. README
  42. README.md
  43. snapshot.commit
README.md

SPDX-License-Identifier: GPL-2.0+

u-boot

This is a version of u-boot, modified to support Fuchsia on the Khadas vim3

Building vim3 Bootloader for Fuchsia

To build the vim3 bootloader for Fuchsia:

Prerequisites - arm and aarch64 toolchains. On Debian/Ubuntu systems, for example:

apt-get install gcc-arm-none-eabi gcc-aarch64-linux-gnu

Run the build script from repo root

./build_uboot_vim3_zircon.sh

You now have a build/u-boot.bin.unsigned that you can flash to a target using fastboot.