From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Korsgaard Date: Wed, 13 Jan 2010 21:54:11 +0100 Subject: [U-Boot] u-boot on ARM PIC? In-Reply-To: <20100113205017.6891D3F6DA@gemini.denx.de> (Wolfgang Denk's message of "Wed, 13 Jan 2010 21:50:17 +0100") References: <87ockyqoio.fsf@macbook.be.48ers.dk> <20100113205017.6891D3F6DA@gemini.denx.de> Message-ID: <87bpgxraj0.fsf@macbook.be.48ers.dk> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de >>>>> "Wolfgang" == Wolfgang Denk writes: Hi, >> I'll soon start an ARM based project (at91sam9g45), and am looking into >> booting options. I normally use PPC, so I'm not really familiar with the >> finer details of U-Boot on ARM. I would like to use a failsafe setup >> with 2x U-Boot images in NOR flash, and a mini bootloader (probably >> at91bootstrap based) to decide which to use. For that to work nicely, >> U-Boot would have to be PIC (pre-relocation). Wolfgang> Not really. Two different images linked for the respective Wolfgang> addresses would do fine, too. Sure, but having a single image (certainly for a ping-pong system, E.G. where you keep the current and previous image) a single position independent image is nicer. Does that work with u-boot on at91 given !SKIP_RELOCATE_UBOOT & !CONFIG_LOWLEVEL_INIT? -- Bye, Peter Korsgaard