From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wolfgang Denk Date: Sat, 14 Jan 2012 00:26:37 +0100 Subject: [U-Boot] Bug of NOR Flash CFI Driver In-Reply-To: <6FE7F5133E344F8BB49547A07A987714@DyingPC> References: <6FE7F5133E344F8BB49547A07A987714@DyingPC> Message-ID: <20120113232637.D503D11CDEDB@gemini.denx.de> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Dear "Robert Ding", In message <6FE7F5133E344F8BB49547A07A987714@DyingPC> you wrote: > > I found a bug on NOR Flash CFI drivers during my development. In the This is not bug. It is a limitation, or you may call it a feature... > To which the address of src point is a RAM address, the code is OK. But > if it points to a address of the same NOR Flash, the code will cause > some problems, which > cannot read the correct data from the NOR Flash. This is a known limitation. You are not supposed to copy data from one part of a NOR device to another part. > I hope u-boot to fix this bug in the new version. Patches that improve U-Boot are always welcoem. Please see http://www.denx.de/wiki/U-Boot/Patches for hints hot to submit patches. Thanks. 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: wd at denx.de A verbal contract isn't worth the paper it's written on. -- Samuel Goldwyn