On Sat, Dec 6, 2014 at 12:46 PM, Karsten Merker <[email protected]> wrote: > On Wed, Dec 03, 2014 at 03:10:37PM -0800, Vagrant Cascadian wrote: > > [providing u-boot images for armhf platforms that do not have > u-boot in non-volatile storage] > >> Simply extracting the relevent u-boot files doesn't seem like enough to >> me. They still need to be installed at particular offsets to the raw SD >> card, or in some cases, to a fat partition on the SD card, though may be >> fussy about exactly where on the fat partition it resides in a rather >> hair-pulling way... so providing just the binaries makes it a little >> easier, but not a whole lot. > > I guess it would make sense to provide both the "naked" u-boot > binaries for people who want to manually write them to an SD card > that already contains a partition table without destroying it, > and an additional tiny disk image (<1MB) that contains u-boot at > the proper place (but nothing else, i.e. no partition table if > not needed for u-boot), which can be written with common disk > image handling tools. The latter would make life a lot easier > for people setting up the installer from Windows for example. > >> Providing complete u-boot images for each platform would be 19 images >> for jessie, though each one is fairly small (each between >> 0.5-1M). Though I don't think we've consolidated all documentation >> needed to generate all those platforms with the correct offsets (though >> many are all the same, such as sunxi). > > I only know those for sunxi and i.MX6: > > - sunxi: > combined image (SPL + main image) at offset 8kB > > - i.MX6: > SPL at offet 1kB > main image at offset 42kB > > @debian-arm: Could somebody provide this information for i.MX53 > and OMAP?
omap bootrom's with the introduction of the omap4 can be dd'ed liked sunxi/i.mx5/5.. dd if=MLO of=/dev/sdX count=1 seek=1 conv=notrunc bs=128k dd if=u-boot.img of=/dev/sdX count=2 seek=1 conv=notrunc bs=384k That just leaves the omap3 family (BeagleBoard (omap34/35xx) & BeagleBoard xM (omap36xx/DM3730) stuck with reading the MLO/u-boot.img on "boot"* partition. * mainline u-boot now has patches to enable extX boot vs fat boot, but it's an either "or" situation based on sram memory size.. Regards, -- Robert Nelson http://www.rcn-ee.com/ -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected] Archive: https://lists.debian.org/caochtygnibzmumrz4rrxnzrpr7lnqykerf8j+5s2si7jvji...@mail.gmail.com
