From mboxrd@z Thu Jan 1 00:00:00 1970 From: Terry Barnaby Date: Wed, 03 Nov 2004 16:38:31 +0000 Subject: [U-Boot-Users] Compressed U-Boot image In-Reply-To: <20041103161939.6F469C1430@atlas.denx.de> References: <20041103161939.6F469C1430@atlas.denx.de> Message-ID: <41890987.6090107@beam.ltd.uk> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Wolfgang Denk wrote: > In message <4188F7C5.6010303@beam.ltd.uk> you wrote: > >>The u-boot image is quite large. > > > 120...240 kB is no much for a boot loader with the capabilities of U-Boot. > > >>Has anyone done any working in getting a compressed u-boot image to boot >>ala the Linux kernel ? > > > Some people did (like for the AT91RM9200), but it makes little sense, > unless you abandon very basic design principles, like doing as much > as possible in standard C code, providing console output as early as > possible, making ports to new CPUs and boards as easy as possible, > etc. > > On the AT91RM9200 we're right now in the process of getting od of the > binary boot loader that loads a compressed U-Boot image: it's a PITA > to have yet another piece of software that needs to be ported, > debugged and maintained, and that does nothing but adding lots of > delays to the boot time. > > > While technically possible (and not exactly difficult) it makes no > sense to me to implement such a feature. > > Best regards, > > Wolfgang Denk > In my case I was hoping to use u-boot simply as a network boot loader without all of the debugging options. However I have only 32KByte to store the code in .... Is there another PPC based network boot loader you know off that would be better at this than u-boot ? Cheers Terry -- Dr Terry Barnaby BEAM Ltd Phone: +44 1454 324512 Northavon Business Center, Dean Rd Fax: +44 1454 313172 Yate, Bristol, BS37 5NH, UK Email: terry at beam.ltd.uk Web: www.beam.ltd.uk BEAM for: Visually Impaired X-Terminals, Parallel Processing, Software "Tandems are twice the fun !"