Hello, I try to modify the env toll for accessing nand flash.
My problem the structure of the enviroment: If I understand: 4 byte crc; 1 byte flags, 0x20000-5 byte data. The Enviroment has a size of 0x20000 bytes. There is a redundant enviroment too.(same size) The CRC is over the data bytes,( not the flags byte included) , right ?? What about the flag byte, which values should I have to write here ? Thank you very much Manuel Sahm Wolfgang Denk schrieb: > In message <[EMAIL PROTECTED]> you wrote: > >> I took the U-Boot version 1.3.2; now I am able to generate the make env >> -> fw_printenv utility. >> >> I copy the jw_printenv binary and rename it to fw_setenv. >> > ... > >> I want to access a NAND flash. [Pagesize = 0x800; ERASEBLOCKSIZE=0x20000] >> > ... > >> Is this correct ? >> > > No. the fw_env tools are written with NOR flash support in mind. Don't > expect this to work unchanged on NAND flash. > > Best regards, > > Wolfgang Denk > > -- Freundliche Grüße / Best regards Manuel Sahm Research & Development FEIG ELECTRONIC GmbH Lange Straße 4 35781 Weilburg Germany Tel.: +49 (0)6471-3109.492 Fax.: +49 (0)6471-3109.99 email: [EMAIL PROTECTED] internet: http://www.feig.de ------------------------------------------------------------------------ Amtsgericht Limburg HRB 3178 Geschäftsführer: Dipl.-Ing. Wolfgang Feig ------------------------------------------------------------------------ ------------------------------------------------------------------------ Diese Email (eingeschlossen die Anhaenge) unterliegt Urheberrecht, die Informationen sind vertraulich und rechtswirksam privilegiert. Der Gebrauch dieser Email oder der Anhaenge von einem anderen als den Adressaten ist nicht gestattet und unrechtmaessig. This email (including any attachments) is subject to copyright, the information in it is confidential, and it is legally privileged. Use of this email or of any information in it other than by the addressee is unauthorised and unlawful. ------------------------------------------------------------------------ ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace _______________________________________________ U-Boot-Users mailing list U-Boot-Users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/u-boot-users
