timer: Add Goldfish timer driver

Add support for the Goldfish timer driver. This driver utilizes the
Goldfish RTC hardware to provide a nanosecond-resolution timer. This
virtual device is commonly found in QEMU virtual machines (such as the
m68k virt machine) and Android emulators.

The driver implements the standard U-Boot timer UCLASS interface,
exposing a 64-bit monotonically increasing counter with a 1GHz clock
rate derived from the RTC registers.

Signed-off-by: Kuan-Wei Chiu <[email protected]>
Tested-by: Daniel Palmer <[email protected]>
Reviewed-by: Yao Zi <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Reviewed-by: Angelo Dureghello <[email protected]>

0 files changed, 0 insertions, 0 deletions