Mulin Chao 8d99bd9345 wheatley: Add CONFIG_LTO definition to reduce FW size.
Add CONFIG_LTO definition to reduce the size of FW image.

Modified drivers:
1. board.h: Add CONFIG_LTO definition.
2. header.c: Add __keep keyword to prevent linker ignore header during
optimization.

BUG=chrome-os-partner:34346
TEST=make buildall -j; test nuvoton IC specific drivers
BRANCH=none

Change-Id: I6205af37572a68f35f90dbd9b28d86230533ca8b
Signed-off-by: Mulin Chao <mlchao@nuvoton.com>
Reviewed-on: https://chromium-review.googlesource.com/319799
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-by: Shawn N <shawnn@chromium.org>
2015-12-30 20:40:48 -08:00
2015-05-07 00:00:47 +00:00
2015-12-22 21:07:25 -08:00
2012-05-11 09:11:52 -07:00
2014-04-02 19:58:53 +00:00
2015-12-08 20:05:05 -08:00

For an overview of the Embedded Controller firmware, refer to

http://www.chromium.org/chromium-os/2014-firmware-summit

For instructions on building from source, refer to

http://www.chromium.org/chromium-os/ec-development/getting-started-building-ec-images-quickly
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