--- Log opened Mon Sep 27 00:00:02 2004
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12:52 < dpalffy> Hi pbrook!
12:52 < pbrook> hi
12:53 < dpalffy> did you really find out how the g4 boots?
12:53 < pbrook> Well, I figured out how the firmware file is organised, so can load modified firmwares.
12:53 < dpalffy> I was trying to find the sense begind the different boot images, but I didn't have the hardware...
12:53 < pbrook> Haven't got the thing to boot yet, looks like everything has moved.
12:54 < dpalffy> yup, it has a completely different memory map, I know
12:54 < pbrook> Basically they've added 512 bytes of padding the start of the image, which appears to be ignored.
12:54 < pbrook> So I haveked make_fw to add that padding and it works.
12:55 < dpalffy> fsck... i really didn't think it was so simple...
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12:55 < pbrook> Heh. I was expecting it to be some sort of crypto key.
12:55 < dpalffy> could you send me your make_fw? 
12:55 < pbrook> Sure.
12:56 < dpalffy> i thought it was related to des somehow. It always had 8 bytes of 0x00
12:56 < dpalffy> so it was a total of 504 bytes, which is a multiple of 56
12:57 -!- oxygen77_ is now known as oxygen77
12:57 < pbrook> Well, I zeroed out all 512 bytes on original firmware, and it still seems happy.
12:58 < dpalffy> the difficult thing is that the diags firmware upgrade is still encrypted in the images. And rev.engineering the full image is quite difficult
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13:00 < pbrook> Email address for my changes, or should I just post them to the list?
13:00 < dpalffy> i think the list would be the best
13:01 < pbrook> ok
13:01 < dpalffy> then bern can also have a look. 
13:06 < dpalffy> the on-chip ram is still at 0x40000000 as far as i see...
13:07 < pbrook> Yes.
13:08 < pbrook> main ram seems to be at 0x10000000, and cpu id is at 0x60000000
13:08 < pbrook> Haven't managed to figure anything else out, but the coprocessor suspend location seems to have moved.
13:09 < dpalffy> i've already looked once at the dump, and also an the dump of a mini... they seem quite similar
13:10 < dpalffy> both have the pp5020
13:11 < dpalffy> i'll look at the images to find out if the serial ports are moved too...
13:11 < pbrook> I'm fairly sure the lcd has moved/changes also.
13:11 < dpalffy> and after that we only have to find where the flash is mapped. And do a serial dump of the flash
13:12 < pbrook> Or the bootloader doesn't work anyway.
13:12 < dpalffy> i think we should do the bare minimum of RE on the main image and get the contents of the flash. it's easier to work with, anyways.
13:13 < pbrook> right
13:15 < dpalffy> ok, then i'll try to locate the serial port code and find out the i/o addresses. But i'm quite flooded with work, so i'm not quite sure when i'll have time for it.
13:17 < pbrook> np, I'm quite busy with "real work" also :)
13:18 < dpalffy> i'm quite interested in the mini/4g too. It's CPU cache actually works according to some rio (?) developer...
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13:20 < dpalffy> it might be much easier to get the 4g play vorbis files
14:13 < dpalffy> bye, i have to go
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21:14 < mogorman> morning
21:14 < mogorman> just got my 3g ipod, and was wondering where the project was and where it is heading
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22:34 < mogorman> hello?
22:47 < KuRcZ> hey
22:52 < mogorman> what is the state of the development for ipod linux?
22:52 < mogorman> i was debating putting it on my gen3
22:53 < KuRcZ> its in beta...i think
22:54 < KuRcZ> its pretty cool
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23:01 < mogorman> but can i play mp3s with mad or is it still not their and apps
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--- Log closed Tue Sep 28 00:00:01 2004