Re: arm: how to operate leds on zaurus?

[Pavel Machek <pavel@ucw.cz>]

Hi!

> > 2.6.12-rc5 (and newer) does not boot on sharp zaurus sl-5500. It
> > blinks with green led, fast; what does it mean? I'd like to verify if
> > it at least reaches .c code in setup.c. I inserted this code at
> > begining of setup.c:674...
> > 
> > #define locomo_writel(val,addr) ({ *(volatile u16 *)(addr) = (val); })
> > #define LOCOMO_LPT_TOFH         0x80
> > #define LOCOMO_LED              0xe8
> > #define LOCOMO_LPT0             0x00
> > 
> >       locomo_writel(LOCOMO_LPT_TOFH, LOCOMO_LPT0 + LOCOMO_LED);
> > 
> > ...but that does not seem to do a trick -- it only breaks the boot :-(
> 
> Basically because you do not have access to IO during the early boot.
> The easiest debugging solution is to enable CONFIG_DEBUG_LL and
> throw a printascii(printk_buf) into printk.c, after vscnprintf.
> That might get you some boot messages through the serial port (if
> it's implemented it correctly.)

I'm afraid I do not have serial cable :-(. I'll try to get one [erik,
do you have one you don't need?], but zaurus has "little" nonstandard
connector.

Would code above work if executed later?
								Pavel
-- 
teflon -- maybe it is a trademark, but it should not be.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/