From mboxrd@z Thu Jan 1 00:00:00 1970 From: Martin Reichherzer Date: Tue, 4 Oct 2016 18:44:00 +0200 Subject: [U-Boot] imx53 performance issue after updating to version 2016.9 (tftp download, hash calculation) 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 After updating a mx53 based custom design to u-boot version 2016.9 from 2013.10 I?m facing performance problems. Change in performance can be observed e.g. during following situations: - TFTP download has decreased from 3 MiB/s to only 517.6 KiB/s - Hash value calculation (sha1) during FIT image format check. Hash calculation now takes a noticeable amount of time instead of finishing virtually immediately. Unfortunately I don?t have access to a Freescale evaluation board to cross check my problems with another i.Mx53 based design. My first assumption was a connection with caching, but according to lowlevel_init.S L2 cache is enabled. Same for D-cache and I-cache. Is anybody facing the same problems or could state information about the behavior on other MX53 boards? Any other suggestions? Regards Martin