Chrome EC

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Revision as of 00:04, 16 January 2016 by Stepan (talk | contribs) (Building the Chrome EC)
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Documentation is now handled by the same processes we use for code: Add something to the Documentation/ directory in the coreboot repo, and it will be rendered to https://doc.coreboot.org/. Contributions welcome!

Chrome EC

The Chrome EC is used in almost all Chrome OS devices, and an increasing number of accessories, like Google's Type C chargers. It is based on the Chromium EC code base.

Building the Chrome EC

Building in the ChromiumOS environment

Getting started building EC images quickly

Building outside of the ChromiumOS chroot

You will need:

  • GNU Make 4.1 (older versions are having trouble with the Makefiles)
  • an ARM cross compiler (I used coreboot's armv7-a-eabi- toolchain)

Let's go:

$ sudo aptitude install libftdi-dev
$ git clone https://chromium.googlesource.com/chromiumos/platform/ec
[..]
$ cd ec
$ CROSS_COMPILE=armv7-a-eabi- HOST_CROSS_COMPILE= make BOARD=chell
  HOSTCC  util/ectool
  HOSTCC  util/lbplay
  HOSTCC  util/stm32mon
  HOSTCC  util/ec_sb_firmware_update
  HOSTCC  util/lbcc
  In file included from include/common.h:11:0,
                from chip/mec1322/registers.h:11,
                from board/chell/board.h:130,
                from include/config.h:2063:
  .../4.9.2/include/stdint.h:9:26: fatal error: stdint.h: No such file or directory
  # include_next <stdint.h>
                         ^
  compilation terminated.
  [..]