Latest Rockbox not working on Nano

[saratoga]

amiconn clocked one of the PP502x chips at 100MHz a while back with no issues, so I don't think its clock speed.  Probably just a matter of us inadvertently using an ATA setting somewhere thats meant for lower clock speeds and not knowing how to fix it (yet).

[soap]

In an attempt to clarify and clean this thread - I am going to post what I think stands as the official word.
I am also going to close this thread - as the signal is getting lost amongst the noise.  The same questions keep getting asked again and again, probably because of the eleven pages of thread.

To summarize a conversation I had with amiconn (the developer who changed the maximum clock speed to 80 from 75) earlier tonight:
1 - The Nano is now running at 80Mhz, not because the original firmware does, but because an overwhelming preponderance of the evidence suggests this is correct.
2 - The Nano uses the exact same processor as the Video.  The iPod Video is the most popular Rockbox target.  If there was a problem running this processor at 80Mhz, the complaints of problems with the Video would far overshadow the numbers of those (myself included) with Nano problems.




< Soap > amiconn, Do I recall correctly that you said that 80 is what you found the Original Firmware uses?
< amiconn > no
< amiconn > I said that 80 is what the OF goes up to when load is high. That's based on the PP product briefs
< amiconn > H10 and Sansas definitely use 80MHz, because that's what they have set when our bootloader takes control
< amiconn > iPods come out of their loader with the pll disabled (i.e. running at 24MHz)
< amiconn > Well, the PP5020 is specced up to 80 MHz. H10 uses PP5020, and comes out of its bootloader at 80MHz
< amiconn > PP5022 is specced up to 100MHz. Sansa uses PP5022/5024, and comes out of its bootloader at 80MHz
< amiconn > PP5021 has no product brief, and identifies itself as PP5022 when reading the respective registers
< amiconn > So I'm 99% sure that PP5021 is just a PP5022 that doesn't reach the full 100MHz specs
< amiconn > And the 5021 in the Nano running *slower* than the 5020 in the mini 1st gen, 4th gen grayscale, and color is *very* unlikely
< Soap > and the Video runs at 80 fine, suggesting yet again that the processor can do 80.
< amiconn > Additionally, there already *is* an ata problem on the nano which is just hacked around
< amiconn > The video runs fine even at  >80MHz
< amiconn > (ask w1lliam)
< Soap > (at least those tested do) We do have a massive test basis for 80 on the video.
< amiconn > yeah