Hi, Stefano, 2011/1/9 Stefano Babic <sba...@denx.de>: > Hi, > > My target is a mx35 board (not yet in mainline). According to the manual > and checking the register set and their functionality, the MX.35 has the > same nand controller as the i.MX25 processor (MXC_NFC_V1_1 in the > mxc_nand driver). Probably there is the same issue with the i.MX25, too. > > The storage is a Samsung 2GiB (8-bit), 2KB page, sector size 256KiB, and > CONFIG_SYS_NAND_LARGEPAGE is set. > > The flash is recognized correctly. However, after reading/writing, only > the first 512 bytes of each page are correct. The rest is filled with > random bytes. Under Linux (2.6.37) everything works flawlessy, however > the driver in Linux is quite different as what we have in u-boot, and > this makes a comparison quite difficult. Any hint how can I better > investigate this issue ?
Have you set the page_size correctly with the following register? 49.4.3.7 Reset Control and Sourse Register - RCSR: NFC_4K This bit is used to config the NandFlash page size. It is defined by PAGE_SIZE while boot up, and it can be configured by software after boot up. 0 not 4k page 1 4k page 8 NFC_FMS This bit is used to config the NandFlash page size.It is defined by PAGE_SIZE while boot up,and it can be configured by software after boot up. 0 not 2k page 1 2k page > > Best regards, > Stefano Babic > > -- > ===================================================================== > DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel > HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany > Phone: +49-8142-66989-0 Fax: +49-8142-66989-80 Email: off...@denx.de > ===================================================================== > _______________________________________________ > U-Boot mailing list > U-Boot@lists.denx.de > http://lists.denx.de/mailman/listinfo/u-boot > _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
