On Wed, Aug 04, 2010 at 09:48:48AM +0200, Eric Bénard wrote: > Hi Sascha, > > Le 04/08/2010 09:42, Sascha Hauer a écrit : >> On Fri, Jul 30, 2010 at 11:49:55AM +0200, Eric Bénard wrote: >>> newer Numonyx Strataflash P3x have 1024b buffer, thus, it's possible >>> to write a buffer size of 0x200 which the actual flash_write_cmd >>> doesn't permit as it's limited to a uchar parameter. >> >> So I guess these chips have 16 data lines? >> > actual flash_write_cmd is also used on chips with 16 data lines (like > P30 or P33 Numonyx). Yes. I meant that 8 wouldn't be enough because the command gets wider than 8bit. > >> > >Unfortunately this won't work when two of these are parallel. You'd have >> to duplicate the command for the upper 16 bit. >> > Does actual flash_write_cmd works when 2 chips are parallel ? At least it's supposed to ;) See flash_make_cmd, it iterates over all bytes in info->portwidth and writes cmd or 0 into the buffer depending on info->chipwidth. 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
