[U-Boot-Users] [PATCH] MIPS time.c fix

Andrew Dyer amdyer at gmail.com
Fri Dec 8 16:38:14 CET 2006

On 12/8/06, Robert Deliën <robert.delien at nxp.com> wrote:
> Hi,
> The patch attached makes the MIPS timer function get_timer return time in
> CFG_HZ ticks, where CFG_HZ is set to 1000 per default.
> The functions get_ticks and get_tbclk still work using the actual number of
> COUNT register increments per second, which is equal to the cpu clock
> frequency for MIPS processors.

The above is not true for all MIPS.  A lot (almost all) of older MIPS
parts run the cpu CP0 counter at half the core clock rate.

I would suggest changing CPU_CLOCK_RATE to CPU_CP0_COUNT_RATE since
they are not always the same.

Hardware, n.:
        The parts of a computer system that can be kicked.

More information about the U-Boot mailing list