[U-Boot] [PATCH v3] arm nomadik: use 1000 as HZ value and rewrite timer code

[Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>]

On 12:52 Mon 29 Jun     , Alessandro Rubini wrote:
> From: Alessandro Rubini <rubini@unipv.it>
> 
> This sets CONFIG_SYS_HZ to 1000 as required, and completely rewrites
> timer code, which is now both correct and much smaller.  Unused
> functions like udelay_masked() have been removed as no driver uses
> them, even the ones that are not currently active for this board.
> mtu.h is copied literally from the kernel sources.
> 
> Signed-off-by: Alessandro Rubini <rubini@unipv.it>
> Acked-by: Andrea Gallo <andrea.gallo@stericsson.com>
> ---
> 
> I've used mtu.h from kernel sources and done the other changes as requested
> (the extra variable just to return it was a mishap from an earlier printf
> I needed to find a misconfig).
> 
> > for the record what is its precision now?
> 
> it counts at 2.4MHz, so the 1000HZ tick has no approximation and udelay
> is correct with sub-microsecond error. I'll use in soft_i2c, needed to
> turn on the LCD light.
> 
>  cpu/arm926ejs/nomadik/mtu.h   |   45 +++++++++++
if it's ok with I'll move it to include/asm-arm/arch-nomadik/

Best Regards,
J.