From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wolfgang Denk Date: Mon, 12 Sep 2011 13:43:11 +0200 Subject: [U-Boot] Bottleneck of NAND copy speed In-Reply-To: <4E6DEB26.4020409@gmail.com> References: <4E6DEB26.4020409@gmail.com> Message-ID: <20110912114311.D98BF140876C@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 Simon Schwarz, In message <4E6DEB26.4020409@gmail.com> you wrote: > > ATM I'm working on a DMA transfer from NAND to RAM of the Linux-image in > my SPL. ... > Does anyone has an idea where the bottleneck could be? Is my calculation > wrong? Caches still turned off? 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 "Anyone attempting to generate random numbers by deterministic means is, of course, living in a state of sin." - John Von Neumann