From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <3EA826C0.8050509@mvista.com> Date: Thu, 24 Apr 2003 11:02:40 -0700 From: "Mark A. Greer" MIME-Version: 1.0 To: Jerry Van Baren Cc: linuxppc-embedded@lists.linuxppc.org Subject: Re: boot/simple in ROM? References: <5.1.0.14.2.20030424134156.036e1e80@falcon.si.com> In-Reply-To: <5.1.0.14.2.20030424134156.036e1e80@falcon.si.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Sender: owner-linuxppc-embedded@lists.linuxppc.org List-Id: Jerry Van Baren wrote: > > The "simple" boot loaders are loaders, they are NOT bootroms. They > expect > the board to have a firmware/bootrom/monitor that does the necessary very > low level very hardware specific initialization (things like setting up > memory maps, initializing the SDRAM controller, etc.). The "simple" boot > loaders do the added steps necessary for starting linux, so they are > necessary but NOT sufficient. In general this is true. However, it is possible to put enough hw init in the simple boot loader (bootwrapper as I and others now call it) to run linux. This has been done in the past. Mark ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/