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| author | Raul E Rangel <rrangel@chromium.org> | 2018-08-20 12:54:58 -0600 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2018-09-12 14:15:25 +0000 |
| commit | 370c116ca5fa9e9d04ed61f445debde882b6a1cb (patch) | |
| tree | a6862b96919b1eba74b551d31721960199420bdb /payloads/libpayload/drivers/serial/ipq806x.c | |
| parent | d63627fb846b6621be87348b1653a5f37070e12f (diff) | |
libpayload/x86/delay: Add an x86 arch_ndelay
This method has a pause instruction to help the CPU relax a little bit.
Measuring grunt it saves about 80mW.
BUG=b:109749762
TEST=Made sure that grunt boots.
Change-Id: I045a941ed42fcc4f2dbdd65b5cbb42d84813f50c
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Reviewed-on: https://review.coreboot.org/28244
Reviewed-by: Martin Roth <martinroth@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'payloads/libpayload/drivers/serial/ipq806x.c')
0 files changed, 0 insertions, 0 deletions