Hello Ben, On Tue, Mar 15, 2005 at 10:45:12AM +0000, Jochen Voss wrote: > Can I do something else to help tracking this down?
I am currently in the process of figuring out how your patch crashes
my machine. Since I know of no better strategy I am applying the
patch piecemeal and boot with each version to see whether is crashed.
The current state: if I apply your patch but replace the function
dfs_set_cpu_speed with a dummy (which just prints its argument using
printk), then everything "works":
* the machine boots
* the machine knows that it is on low speed
* the /sys/.... entries are present so powernowd starts up
But of course one cannot switch to high speed now.
The part I disabled is really simple, now. The commands are
for switching to high speed:
pmac_call_feature(PMAC_FTR_WRITE_GPIO, NULL, voltage_gpio, 0x05);
msleep(1);
low_choose_7447a_dfs(0);
for switching to low speed:
low_choose_7447a_dfs(1);
pmac_call_feature(PMAC_FTR_WRITE_GPIO, NULL, voltage_gpio, 0x04);
msleep(1);
voltage_gpio is non-zero. Does anybody have an idea what else could
go wrong with these commands?
All the best,
Jochen
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