tree 693a88560ad495ddf33c10be0977b7a0b9b89f59
parent bf8adb5335a545948af62ebfbe40263716b1c570
author Cindy Chen <chencindy@opentitan.org> 1623437733 -0700
committer cindychip <cindy.chen0316@gmail.com> 1623774947 -0700

[dv/otp_ctrl] Low frequency read

This PR adds a sequence to backdoor load OTP memory, then use a low
clock frequency to read out the OTP memory.
This sequence might happen during chip init before the clock is
calibrated.

Signed-off-by: Cindy Chen <chencindy@opentitan.org>