delay: timeout detection support

Introduce timeout_init_us/timeout_elapsed() delay tracking with CNTPCT.

timeout_init_us(some_timeout_us); returns a reference to detect
timeout for the provided microsecond delay value from current time.

timeout_elapsed(reference) return true/false whether the reference
timeout is elapsed.

Cherry picked from OP-TEE implementation [1].
  [1] commit 33d30a74502b ("core: timeout detection support")

- Remove stm32mp platform duplicated implementation.
- Add new include in marvell

Signed-off-by: Etienne Carriere <>
Signed-off-by: Lionel Debieve <>
Change-Id: Iaef6d43c11a2e6992fb48efdc674a0552755ad9c
3 files changed