thanks , I have understanded. ------------------ hacklu.uboot 2011-04-18
------------------------------------------------------------- å件人ï¼Wolfgang Denk åéæ¥æï¼2011-04-15 18:21:23 æ¶ä»¶äººï¼hacklu.uboot æéï¼u-boot 主é¢ï¼Re:Re: Re: [U-Boot] is any bug in cp? Dear "=?utf-8?B?aGFja2x1LnVib290?=", In message <201104151715238470...@gmail.com> you wrote: > em.. > how linux does that? What exactly are you doing in Linux? Are we talking about user-space access through a file sytem (and thus block devices) based on the MTD layer? Or about raw access to the flash devices? Or about in-kernel code directly accessing some CFI driver routines? > does linux read the data to mem first before it write to the same bank of a > nor flash? For user space operations on file system level: yes. 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: w...@denx.de In any group of employed individuals the only naturally early riser is _always_ the office manager, who will _always_ leave reproachful little notes ... on the desks of their subordinates. - Terry Pratchett, _Lords and Ladies_
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