From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: To: Ryan Wilkins From: Wolfgang Denk Mime-version: 1.0 Content-type: text/plain; charset=ISO-8859-1 In-reply-to: Your message of "Sun, 24 Oct 2004 16:33:44 EDT." <002D5C38-25FC-11D9-BA35-0050E4B0DC64@elevated-networks.com> Date: Sun, 24 Oct 2004 22:45:50 +0200 Sender: wd@denx.de Message-Id: <20041024204555.C38ECC1430@atlas.denx.de> Cc: linuxppc-embedded@ozlabs.com Subject: Re: MPC850 and GDB help List-Id: Linux on Embedded PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , In message <002D5C38-25FC-11D9-BA35-0050E4B0DC64@elevated-networks.com> you wrote: > > What about running the Linux kernel from ram? Will I encounter the > same difficulties? No, this is what Linux is designed for. But this doesn't help you. Before Linux can run, you need a working boot loader to initialize the hardware. Before you start you should ask yourself if you have all required documentation available. You will need a detailed hardware descrip- tion, which documents which pins of the MPC8xx are used for which purpose, what board control registers, CPLDs etc. are there and how they are expected to be initialized, etc. With all the documentation available, you will need to get a thorough understanding of the hardware. Only then you should try porting a boot loader. Best regards, Wolfgang Denk -- Software Engineering: Embedded and Realtime Systems, Embedded Linux Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de Carelessly planned projects take three times longer to complete than expected. Carefully planned projects take four times longer to complete than expected, mostly because the planners expect their planning to reduce the time it takes.