On Fri, Aug 10, 2012 at 11:11:49AM +0200, Gabriel Tisan wrote: > Hi ! > > I try to boot a custom board(based on imx35) from a Micron NAND > flash(4K pagesize, 224 bytes OOB, 256K writesize). > Using a JTAG debugger, I found that the internal Freescale firmware > copied the first 4K from flash > without errors to NFC internal buffer, but then it does not jump to > this buffer how is specified in specs. > So the barebox code is never called. > If I jump manually via JTAG debugger, barebox boot up without any > problems. I use external boot and write/dump to/from flash works well. > Of course for imx35 I used just the supported 218 bytes of OOB. > > Freescale support told me that there is a boot problem with imx35 when > is used with flashes that need more time after RESET command. > On the same board I used before also a Micron flash(2K pagesize, 64 > bytes OOB, 128K writesize) that has the same hardware timing for > RESET. > However I suppose that the flash is out of RESET, because otherwise > could not copy without any ECC error the first 4K data. > > Has anybody experienced some kind of problems ? Do you see a workaround ? Never seen this. Maybe you could try internal boot mode? Sascha -- Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
