Dear Qi Wang 王起 (qiwang), In message <71cf8d7f32c5c24c9cd1d0e02d52498a770d0...@ntxxiambx02.xacn.micron.com> you wrote: > Micron Nor flash don't support read operation after send write command. As > below,
I understand you attempt to copy data between two different areas on the same NOR device? This is not supported. > If the src address locate in NOR flash, flash_read operation will be failed. > So, read out the data to DRAM before send write command operation. > --- > drivers/mtd/cfi_flash.c | 70 > +++++++++++++++++++++++++++++++---------------- > 1 file changed, 46 insertions(+), 24 deletions(-) Thanks, but NAK. If the source address range and the target address range are both in the same NOR flash device, please use a two step approach instead: first copy the data to RAM, then copy from RAM to NOR. No code changes are needed for this. Best regards, Wolfgang Denk -- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: [email protected] I wish I had a bronze torc for every user who didn't read the manual. - Terry Pratchett, _The Light Fantastic_ _______________________________________________ U-Boot mailing list [email protected] http://lists.denx.de/mailman/listinfo/u-boot
