From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marek Vasut Date: Wed, 1 Feb 2012 11:11:09 +0100 Subject: [U-Boot] Can u-Boot Ran from RAM? In-Reply-To: <201201311015.31431.vapier@gentoo.org> References: <201201311015.31431.vapier@gentoo.org> Message-ID: <201202011111.09465.marek.vasut@gmail.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de > On Monday 30 January 2012 23:07:05 Bud Miljkovic wrote: > > While getting acquainted with possible u-Boot development issues, I read > > FAQ "14.2.1. Can U-Boot be configured such that it can be started in > > RAM?" and was puzzled to learn that u-Boot cannot run from RAM. > > you misread it. the question is for people who have loaded u-boot, and > then want to load another copy of u-boot into ram and then execute that > directly. > > so the question is "can u-boot be *started in ram*" and the answer is "no". The answer is "yes if you know how to do it" ;-) > normally u-boot is bootstrapped from non-ram storage (via a bootrom, or > some bit of code being latched in at a hardcoded address, or some other > cpu-specific magic). > -mike