From mboxrd@z Thu Jan 1 00:00:00 1970 From: Michael Lawnick Date: Wed, 26 Nov 2008 16:10:21 +0100 Subject: [U-Boot] Generic CFI flash driver is not so generic? In-Reply-To: <1227702207.15327.86.camel@hades.legend.co.kr> References: <1227678669.15327.62.camel@hades.legend.co.kr> <20081126095848.C3E6D834B020@gemini.denx.de> <1227702207.15327.86.camel@hades.legend.co.kr> Message-ID: List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Choe, Hyun-ho said the following: > My second workaround is strange, too. > In ARM code, mapping physical address to logical is actually does > nothing, except re-calculating pointer with sector no. and offset. > It just eating several processor cycles. I actually have no ARM experience, but when you talk about 'mapping' the word 'cache' is coming to my mind. Any chance that you have not disabled caching for flash access address space? -- Michael Lawnick Software Design Engineer Lise-Meitner-Str. 7/1 89081 Ulm Tel: +49 731 9533 2066 Michael.Lawnick.ext at nsn.com http://www.nokiasiemensnetworks.com/global/ Think before you print