soc/ipq806x: Replace GPT with fine grained DGT timer.

Support 1MHz libpayload restriction on timer implementation
by using DGT (debug) timer instead of GPT (general purpose) timer.

BUG=chrome-os-partner:28880
TEST=manual
  verified DGT timer functions in coreboot and depthcharge.

Original-Change-Id: Iab322d7e863e3959c027e9ce876223a64eb7e257
Original-Signed-off-by: Deepa Dinamani <deepad@codeaurora.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/201574
Original-Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
Original-Commit-Queue: Vadim Bendebury <vbendeb@chromium.org>
Original-Tested-by: Vadim Bendebury <vbendeb@chromium.org>
(cherry picked from commit ddf11eee5ec2d86a62095e932dbec9313b8fb9e1)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>

Change-Id: Id73e805801fd8d135b607df9f4f8caf567ec5b83
Reviewed-on: http://review.coreboot.org/8596
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
1 file changed