In message <[EMAIL PROTECTED]> you wrote: > ... > > from a flash? We are developing our app with the canyonlands > > board, but we won't be able to try the PCI boot until we have our > > own board finished. > > U-Boot is a bootloader. What you are describing here > circumvents needing a bootloader.
This is not necessarily true. Ther emay be many reasons why you still want to run a boot loader (like U-Boot) on the PCI device's local processor. > If you want to boot your board over PCI, then the board > will most likely be a peripheral board (a host would need > to boot and setup bridges, so you would have a hard time > booting a host through a bridge that is not configured). > The host CPU would hold the image of the kernel that you were > planning to boot onto the PCI peripheral board. However, > your host would need to perform all of the tasks normally > performed by the bootloader; setup the memory map, memory > controllers, and peripherals that Linux expects to find > configured. Then even trickier, is to setup the kernel > boot command line arguments and device tree. My guess would > be that you would have to hardwire that info into your kernel > image, or add a small bootloader to the kernel image to > setup the arguments to the kernel proper. You see? There is plenty of good reasons to have a well-known, powerful boot loader available :-) > Save yourself a lot of trouble, and no community support, Who says "no community support"? This is a perfectly legal way of using U-Boot, and we we can, we will help. Best regards, Wolfgang Denk -- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: [EMAIL PROTECTED] It is easier to change the specification to fit the program than vice versa. ------------------------------------------------------------------------- This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. Use priority code J8TL2D2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone _______________________________________________ U-Boot-Users mailing list U-Boot-Users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/u-boot-users
