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android / trusty / lk / common / 9b2165fefbf6b3e193b5e8fd4d54a887cfc979aa
commit9b2165fefbf6b3e193b5e8fd4d54a887cfc979aa[log] [tgz]
authorMichael Ryleev <gmar@google.com>Thu Nov 03 21:47:51 2016 -0700
committerArve Hjønnevåg <arve@android.com>Tue Sep 19 16:38:28 2017 -0700
treeff6c12845268f230fd7deabed089674c08630ffa
parent9d29f7c43f84fa672313ce5ca73eae0b04b7502f [diff]
[dev][arm_generic_timer] Add suspend hook and supporting routines

On some platforms the state of arm-deneric timer might be lost
in suspend as well as some (deeper) cpu idle related states.
This patch adds routine to export timer state in raw and more
generic form and implements suspend hooks that saves and restores
timer state in per cpu variable across suspend/resume cycle.

Change-Id: I736fa25c933b5814bee8047c36ccb8a68d34060a
2 files changed
tree: ff6c12845268f230fd7deabed089674c08630ffa
  1. app/
  2. arch/
  3. dev/
  4. external/
  5. include/
  6. kernel/
  7. lib/
  8. make/
  9. platform/
  10. project/
  11. scripts/
  12. target/
  13. tools/
  14. top/
  15. .gitignore
  16. .travis.yml
  17. engine.mk
  18. LICENSE
  19. lk_inc.mk.example
  20. makefile
  21. README.md
README.md

LK

The LK embedded kernel. An SMP-aware kernel designed for small systems.

See https://github.com/littlekernel/lk for the latest version.

See https://github.com/littlekernel/lk/wiki for documentation.

Builds

Build Status

To build and test for ARM on linux

  1. install or build qemu. v2.4 and above is recommended.
  2. install gcc for embedded arm (see note 1)
  3. run scripts/do-qemuarm (from the lk directory)
  4. you should see ‘welcome to lk/MP’

This will get you a interactive prompt into LK which is running in qemu arm machine ‘virt’ emulation. type ‘help’ for commands.

note 1: for ubuntu: sudo apt-get install gcc-arm-none-eabi or fetch a prebuilt toolchain from http://newos.org/toolchains/arm-eabi-5.3.0-Linux-x86_64.tar.xz