sorry, but the list somehow does not like my attachments. you can download the tarball from http://kodeaffe.de/powerbook-54-device_tree.tar.bz2 ----- Forwarded message from Sebastian Henschel <debian@kodeaffe.de> ----- Date: Mon, 24 May 2004 10:02:29 +0200 From: Sebastian Henschel <debian@kodeaffe.de> To: "debian-powerpc@lists.debian.org" <debian-powerpc@lists.debian.org> Subject: Re: PowerBook 5,4 (the latest alu): cpufreq/sound/eth1394 X-Operating-System: Debian GNU/Linux User-Agent: Mutt/1.5.5.1+cvs20040105i hello ben... * Benjamin Herrenschmidt <benh@kernel.crashing.org> [2004-05-24 09:09 +0200]: CPUFREQ: > > first, i thought: no problem, just pretend 5,4 to be like 5,2, but that > > did not work out. i modified pmac_feature.c at two places so far: > > - line 2120ff to add an entry for 5,4 > > - line 2624 to trigger the "bump clock speed hack" > > DO NOT DO THAT ! > > I should add a FAT BOLD warning, it's dangerous to play blind games > with the clock chip. perdiod. ok, i just thought that a younger sister of the same generation of powerbooks should behave similar to the older sister. > I'll have to find out the proper values > for this model, you can help by sending me a tarball of > /proc/device-tree attached. > > SOUND: > > for "snapper". so far, i found out, that this function is located in > > arch/ppc/syslib/prom.c. what is responsible for filling the property > > "compatible"? looking back at my cpufreq problem, do you think > > that the parsing of the openfirmware device tree somewhat fails or > > misbehaves? i feel like one important item has changed unexpectedly in the OF > > and subsequent property calls result in failures. i attached the file > > tree of /proc/device-tree if that could be useful. > Or maybe you simply have a new sound chip which isn't "snapper" ? of course, that is possible. but why should apple replace the sound chip within the same generation? nevertheless, it seems quite compatible to snapper. i suggest you will see that in the devices-tree? thanks, sebastian -- ::: .O. ::: ..O ::: OOO ::: lynx -source http://www.kodeaffe.de/shensche.pub | gpg --import ----- End forwarded message ----- -- ::: .O. ::: ..O ::: OOO ::: lynx -source http://www.kodeaffe.de/shensche.pub | gpg --import
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