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| author | Anton Staaf <robotboy@chromium.org> | 2015-02-11 15:34:52 -0800 |
|---|---|---|
| committer | ChromeOS Commit Bot <chromeos-commit-bot@chromium.org> | 2015-02-17 18:19:14 +0000 |
| commit | 6c83a4d3a560c84e4f7030d3dcad583e92781f8b (patch) | |
| tree | b575a9c5b03d838f11be5731b746e84a61edead9 /common | |
| parent | 2e6bee5642be6d863c8a87b8bf60643b99c64f62 (diff) | |
| download | chrome-ec-6c83a4d3a560c84e4f7030d3dcad583e92781f8b.tar.gz | |
USB: fix memcpy_to_usbram
A change to the toolchain or environment surfaced an issue where the writes to
packet RAM were being split into two 16-bit writes. This was interacting
poorly with the AHB2APB bridge.
Marking the packet RAM destination pointer volatile forces the compiler to use
full 32-bit writes.
Signed-off-by: Anton Staaf <robotboy@chromium.org>
BRANCH=None
BUG=None
TEST=make buildall -j
Check that Ryu's console is accessible over USB
Change-Id: I0c3db08c704389a627570b90ef97bce81ab553fa
Reviewed-on: https://chromium-review.googlesource.com/248840
Trybot-Ready: Anton Staaf <robotboy@chromium.org>
Tested-by: Anton Staaf <robotboy@chromium.org>
Reviewed-by: Vic Yang <victoryang@chromium.org>
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
Commit-Queue: Anton Staaf <robotboy@chromium.org>
Diffstat (limited to 'common')
0 files changed, 0 insertions, 0 deletions