(Reformat as list-mail as I realise it might have useful information in it)
Bernard, I haven't tried this but I can tell you that the kernel image on the DM355 EVM uses the hardware ECC as documented in the DM355 datasheets. I have a Ronetix PEEDI to program the flash through JTAG, as it turned out I was the first customer with a DM355 (although they advertised compatibility on their site.. hmm!) and had to work with the firmware developer, providing flash dumps of the EVM, so he could implement the ECC. (To give the guy his due, he was very helpful and got it all working quickly). This "special ECC mode" is active for programming the UBL, uboot magic (read by UBL), uboot itself, the uboot enviroment and the kernel image. We haven't got as far as programming the filesystems with PEEDI, getting a blank flash up to kernel booting was enough for me to be getting on with for now, so I don't have more information about the ECC used for YAFFS/JFFS partitions. Hope this info is useful. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Bernard Blackham Sent: 25 June 2008 16:24 To: davinci-linux-open-source@linux.davincidsp.com Subject: Flashing NAND for u-boot from Linux - ECC differences? U-boot: 1.3.3 Linux kernel: 2.6.24 + patches to approximate current git NAND: 256MiB with 128KiB blocks and 2KiB pages I tried flashing a kernel image into NAND on an mtd device using the nandwrite utility from within Linux. u-boot cannot read the image and it fails with "read error". Racelogic is a limited company registered in England. Registered number 2743719 . Registered Office Unit 10, Swan Business Centre, Osier Way, Buckingham, Bucks, MK18 1TB . The information contained in this electronic mail transmission is intended by Racelogic Ltd for the use of the named individual or entity to which it is directed and may contain information that is confidential or privileged. If you have received this electronic mail transmission in error, please delete it from your system without copying or forwarding it, and notify the sender of the error by reply email so that the sender's address records can be corrected. The views expressed by the sender of this communication do not necessarily represent those of Racelogic Ltd. Please note that Racelogic reserves the right to monitor e-mail communications passing through its network _______________________________________________ Davinci-linux-open-source mailing list Davinci-linux-open-source@linux.davincidsp.com http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
