AT92RM9200 Linux FAQ

Sep 23, 2003 2 Replies

I'm shuffling through the Linux port for this part, but what I am really looking for is a FAQ. Particularly, which devices on the chip have "ready to go" driver support, whether there is jffs support for MMC, SD, CF, SmartMedia, DataFlash, etc., whether there is a bootloader that supports these devices, etc. My impression is that this linux build is bare bones and these things are not addressed, but I can't find any Atmel documentation that discusses it directly.



Any ideas?


documentation

Most of the initial AT91RM9200 port was done by ourselves, SAN People, and an independent contractor by the name of Rick Bronson. Atmel provided direct technical support on the chip.

As a result, the Linux port services our and Rick Bronson's client's needs, and not much else. Of course, being open source, others have started to add other functionality to the port as well.

At present there exists no FAQ adresing your questions. In the spirit of the open sorce community, we would be willing to answer any questions via email (of course I am hesitant to set a precident that will result in us becoming a technical support desk ;-> )

The bootloader that ATMEL formally is "supporting" is U-boot - see sourceforge - but beware of board (read $5000 DK) specific code.

Regards Simon

"Ian McBride" skrev i meddelandet news:O9Xbb.1031$ snipped-for-privacy@newsread1.news.atl.earthlink.net...

documentation

As far as I know, the latest list include

SUPPORTED

  • Ethernet
  • SVGA: text, not sure about graphics
  • Serial
  • SPI
  • Dataflash
  • USB Host controller - you can connect a USB flash disk like Disk On Ke
  • PS/2 Keyboard
  • Smart Media
  • ext2 file system

----------------------- NOT SUPPORTED (yet)

  • CompactFlash
  • PS/2 Mouse
  • MMC
  • SD
  • jffs

The ROM boot loader supports loading a binary image from UART or USB to internal SRAM. I know that there are binary images supporting dataflash. You may send your questions directly to snipped-for-privacy@atmel.com if this suits you.

Best Regards, Ulf Samuelsson ulf@a-t-m-e-l.com This is a personal view which may or may not be share by my Employer Atmel Nordic AB

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