Rockbox Development > New Ports
Ingenic Jz4740/Jz4732 players
jaining:
--- Quote from: mcuelenaere on January 21, 2009, 10:38:30 AM ---
--- Quote from: jaining on January 21, 2009, 10:32:56 AM ---Thank you for quick reply. I hope to use the code after u comitt to the SVN. please reply when u do.
For storage, i look at wiki page, shows that FLT not known yet. But that is needed only if we want to run both original FW of player as well as rockbox. what if we format the flash with known FS like FAT, and run only rockbox? please tell if i miss something here.
thanks
--- End quote ---
Yes, that's possible but how would you know which blocks are currently marked as a bad block?
If you would ignore that, you would get in trouble pretty quickly as on every NAND chip there are several bad blocks.
When a NAND chip is shipped, the manufacturer has marked these blocks in a way like they described in the datasheet; but as we currently don't know the FTL we also don't know which blocks are bad.
Also, there will always be a need to run the OF (especially in the beginning, when not all drivers are fully developed/working) so it would be better when we use the original FTL.
If you really want to get some storage working, I would say you should look after microSD.
I did a little bit of groundwork there, but got stuck at some point.
And just 'formatting' the NAND as FAT won't work either, there's really a *need* for a FTL (bad block management, Google for more information).
--- End quote ---
mcuelenaere,
thanks for replying. i will look up. pardon my ignorance on flash, i will study and see what i do about microSD.
mcuelenaere:
I committed a working USB driver (receiving data on the device is a bit flaky) and an AFAICS working NAND driver.
Now we're able to dump the NAND, but I'm not sure whether the NAND driver outputs the data in the correct order (I'll need to look further into this issue).
If you want to test the code, you'll need to edit the bootloader and you can use this patch for it (you'll also need to define USB_STORAGE in usb_core.h).
jaining:
thanks i will check out this week
jaining:
--- Quote from: mcuelenaere on January 21, 2009, 07:13:43 PM ---I committed a working USB driver (receiving data on the device is a bit flaky) and an AFAICS working NAND driver.
--- End quote ---
hi mcuelenaere, do u have app.lds file for vx747? it is missing from tree.
mcuelenaere:
--- Quote from: jaining on January 29, 2009, 09:19:40 AM ---hi mcuelenaere, do u have app.lds file for vx747? it is missing from tree.
--- End quote ---
No, I haven't added that yet because there's no point in adding support for the main Rockbox firmware due to the lack of (working) storage drivers..
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