Hi Graeme,
On Wed, Apr 17, 2013 at 7:53 PM, Graeme Russ <graeme.r...@gmail.com> wrote:
> Hi Simon,
>
>
> On Thu, Apr 18, 2013 at 12:13 PM, Simon Glass <s...@chromium.org> wrote:
>>
>> While we don't want PCAT timers for timing, we want timer 2 so that we can
>> still make a beep. Re-purpose the PCAT driver for this, and enable it in
>> coreboot.
>>
>> Signed-off-by: Simon Glass <s...@chromium.org>
>> ---
>> arch/x86/include/asm/u-boot-x86.h | 1 +
>> arch/x86/lib/Makefile | 2 +-
>> arch/x86/lib/pcat_timer.c | 69
>> ++-------------------------------------
>> arch/x86/lib/tsc_timer.c | 6 +++-
>> include/configs/coreboot.h | 1 +
>> 5 files changed, 11 insertions(+), 68 deletions(-)
>
> [snip]
>
>> -/* this is not very exact */
>> -void __udelay(unsigned long usec)
>> -{
>> - int counter;
>> - int wraps;
>> -
>> - if (timer_init_done) {
>> - counter = read_pit();
>> - wraps = usec / 1000;
>> - usec = usec % 1000;
>> -
>> - usec *= 1194;
>> - usec /= 1000;
>> - usec += counter;
>> -
>> - while (usec > 1194) {
>> - usec -= 1194;
>> - wraps++;
>> - }
>> -
>> - while (1) {
>> - int new_count = read_pit();
>> -
>> - if (((new_count < usec) && !wraps) || wraps < 0)
>> - break;
>> -
>> - if (new_count > counter)
>> - wraps--;
>> -
>> - counter = new_count;
>> - }
>> - }
>> -
>> -}
>
> This does not seem related...
It really should be in a clean-up patch. But now that I am squashing
them, I will just add it to the squashed patch.
Regards,
Simon
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