From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tor Krill Date: Fri, 04 Jun 2010 14:37:39 +0200 Subject: [U-Boot] Unaligned data transfers? Message-ID: <1275655059.2450.78.camel@tor-desktop> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Hi, I have a question regarding (disk) transfers. For example Sata read and write takes an unspecified address which very well could be an unaligned byte address. Many DMA-controllers though require 16 or 32bit alignments for transfers. Is it safe to assume that the address is correct or bail out with an error message if source/destinaton address isn't correctly aligned for the underlaying HW? /Tor