tree 13bc1f3589ed23fba146511add4e8bcfcc1ebdb8
parent 5446c88186d3ada16cf62f4b9c45e3af325fee93
author Vadim Bendebury <vbendeb@chromium.org> 1378843652 -0700
committer chrome-internal-fetch <chrome-internal-fetch@google.com> 1378844961 +0000

Unroll loops for all firmware platforms

Unrolling loops shaves 20ms off pit ro boot time. This option was
enabled before but inadvertently got disabled for ARM.

BUG=chrome-os-partner:2115
BRANCH=pit
TEST=manual
Build for pit, see that code size increases slignly but RO boot time
drops by about 24ms.

Original size:
   text    data     bss     dec     hex filename
 422482   17580  334796  774858   bd2ca b/chromeos_peach/u-boot
  14938    1111       0   16049    3eb1 b/chromeos_peach/spl/u-boot-spl

New size:
 429322   17580  334788  781690   bed7a b/chromeos_peach/u-boot
  14938    1111       0   16049    3eb1 b/chromeos_peach/spl/u-boot-spl

Change-Id: I1ded0ed3369de9d72220112b92c322777d1ba2d5
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/168803
Reviewed-by: Randall Spangler <rspangler@chromium.org>