UART with no DMA is likely to drop RX characters when system is busy. This is
because the UART interrupt is lower priority than the spi_event GPIO interrupt.
We can work around this by enabling the DMA, so no UART interrupts are required
while recieving, since everything will happen in DMA.
This replaces the other patch(CL 236089) which suggested changing UART IRQ
priority.
BUG=chrome-os-partner:33451
TEST=get firmware to poll the EC for keyboard presses, type really fast on the
keyboard, note how no character is lost anymore
TEST=faft dev mode test now passes, faft is able to type "kbpress $(insert args
for Ctrl+D) 1" correctly without missing characters because firmware is loading
the EC with keyboard polls
TEST=While '+'s are scrolling on the EC terminal paste something big like this:
"kbpress 1 1 1
kbpress 1 1 0
123456789012345678901234567890
". Both kbpresses should be interpreted/executed properly(no "kbprss") and there
should be no missing digits in the echo back.
BRANCH=None
Change-Id: I01d4eaa23f10f07083875846ea48c34da2e2f6ce
Signed-off-by: Alexandru M Stan <amstan@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/236365
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Added hibernate wakeup pin(EC_WAKE) that covers both AC_PRESENT and LID_OPEN. It pulses a
rising edge when either of them have a rising edge.
The power button was also inverted to handle hibernation better, now it's low
except when pressed it temporarly goes high.
BRANCH=None
BUG=chrome-os-partner:33269 chrome-os-partner:32782
TEST=make BOARD=jerry
Try hibernating, all wakeup sources should work, it shouldn't stay hibernated.
All signals(AC, lid, power button) should work equally well as in pinky.
Change-Id: I894135bdfd5600919296f7510dc9cd1acd567ddc
Signed-off-by: Chris Zhong <zyw@rock-chips.com>
Signed-off-by: Alexandru M Stan <amstan@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/228763
Seems that all previous boards used the subvariant specific name, and had an
alias from emerge-variant_subvariant to the ec subvariant folder.
BUG=chrome-os-partner:32331
BRANCH=None
TEST=cd board/pinky; make clean && make -j && ../../util/flash_ec --board=pinky
Change-Id: Ie6e0c977b6659687357a1b5aa2915cf0e40a5da7
Signed-off-by: Alexandru M Stan <amstan@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/221904
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Reviewed-by: David Hendricks <dhendrix@chromium.org>
