baytrail: add reset support

Bay Trail has the following types of resets it supports:
 - Soft reset (INIT# to cpu) - write 0x1 to I/O 0x92
 - Soft reset (INIT# to cpu)- write 0x4 to I/0 0xcf9
 - Cold reset (S0->S5->S0) - write 0xe to I/0 0xcf9
 - Warm reset (PMC_PLTRST# assertion) - write 0x6 to I/O 0xcf9
 - Global reset (S0->S5->S0 with TXE reset) - write 0x6 or 0xe to
   0xcf9 but with ETR[20] set.

While these are documented this support currently provides support
for 2nd soft reset as well as cold and warm reset.

BUG=chrome-os-partner:23249
BRANCH=None
TEST=Built and booted.

Change-Id: I9746e7c8aed0ffc29e7afa137798e38c5da9c888
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/172710
Reviewed-by: Shawn Nematbakhsh <shawnn@chromium.org>
Reviewed-on: http://review.coreboot.org/4878
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>

0 files changed, 0 insertions, 0 deletions