> -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf > Of Jean-Philippe François > Sent: Thursday, April 23, 2009 3:39 AM > To: R. Simning > Cc: [email protected] > Subject: Re: Kernel and U-boot status for DM355 EVM > > R. Simning a écrit : > > If this is your first venture into the DaVinci development environment, > > I would strongly suggest staying within the distribution provided be TI. > > The package is reasonably complete and functional. > > I believe there are at least two significant issues to be concerned with > > when using the GIT kernel: > > The DM355 device comes in two version, 1.1 and 1.3. One of the > > differences is with how the device handles ECC. The early version only > > supported inline ECC, (512 + 16, 512 + 16, ...). The later version can > > handle either type of ECC. The TI package uses one form of ECC, the GIT > > package uses another. Google for DM35x_FlashAndBootUtils_1_50. This > > should lead you to a mirror site at the University of Kent. Unpacking > > and reading the readme files is pretty informative. I was unable to > > decompress the link on the Wiki page for these utils. > > > Thank you all for these informations. The current git tree seems to have > some trouble with the nand on my board. I guess I will start by > gathering some experience with TI's LSP.
There is no support for NAND on DM355 in the current GIT tree, since it requires 4-bit ECC support. Dave Brownell submitted patches to this mailing list (and linux-mtd) to support 4-bit ECC on DM355. But they work only for small page (512bytes) NAND chips. They are in good shape to be approved. Before this, I had submitted some patches that supported both small-page and large-page NAND chips. They required some changes such as coming up with a new ECC mode in the NAND core itself. I will start working on these changes next week. These patches will use the new standard layout - 2048+64 or 4096+128. Thanks Sneha > > > Camera Support: The TI package comes with sample drivers for the CCD and > > VPFE. I don't believe the GIT kernel provides these yet though I have > > seen a conversation discussing how best to add support for these > devices. > > > > > > > > > Jean-Philippe François wrote: > >> Hi, > >> > >> I have been looking at the wiki, and could not find what is the > >> current status of support for DM355 EVM > >> > >> Davinci git kernel tree seems to support some part of the DM355. > >> U-boot also as some support for davinci boards, but from the wiki I > >> understood that for the DM355 there was some TI provided code I could > >> not find a link too. > >> > >> Here is the quote from the wiki : > >> DM355 and similar recent DaVinci chips aren't yet supported in > >> mainline U-Boot; use the code supplied by TI. > >> > >> Is there an online, updated version of this code, or should I use the > >> DVSDK CD ? > >> > >> Thank you in advance, > >> Jean-Philippe François > >> > >> > >> _______________________________________________ > >> Davinci-linux-open-source mailing list > >> [email protected] > >> http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source > >> > >> > > > > > > > _______________________________________________ > Davinci-linux-open-source mailing list > [email protected] > http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source _______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
