On 04/23/2012 11:14 AM, Tom Rini wrote: > On Mon, Apr 23, 2012 at 09:22:22AM -0700, Tom Warren wrote: >> Stephen, >> >> On Fri, Apr 20, 2012 at 2:40 PM, Stephen Warren <swar...@wwwdotorg.org> >> wrote: >>> On 04/20/2012 01:50 PM, Tom Warren wrote: >>>> This set of boot cmds from Stephen Warren provides a simple >>>> default for booting a linux kernel and DT from mmc (eMMC or >>>> SD-Card, in that order). Tested on Seaboard w/an SD card. >>> ... >>>> diff --git a/include/configs/tegra2-common.h >>>> b/include/configs/tegra2-common.h >>> ... >>>> ?#define CONFIG_EXTRA_ENV_SETTINGS \ >>> ... >>>> + ? ? "script=/boot.scr.uimg\0" \ >>> >>> It might be best to make that just /boot.scr. The reason being that I >>> looked at the Ubuntu Precise images for OMAP, and they don't have >>> ".uimg" in the filename, even though they're uImage files. It's probably >>> best to be consistent with the Ubuntu images given the only other >>> precedent is what I do locally, which can easily be adjusted. >> >> I'll change it to /boot.scr, but do we have any stats on other/more >> distros and what they use? > > Can I suggest that instead of using boot.scr files we just use a text > file that can be imported to the environment and a command run?
That sounds like a great idea; it avoids a mkimage call and generally simplifies things. Looking at the code, it's just a list of name=value, one per line. TomW, I'd suggest looking at ./include/configs/omap3_beagle.h. In particular: a) The load from MMC is only attempted if "mmc rescan" succeeds, rather than just blasting through the script with lots of failures. The hush shell might be needed for this; is it enabled on Tegra? b) See the macros loadbootenv/importbootenv which are the replacement for boot.scr. TomR, is there a reason OMAP3 uses FAT for /boot rather than ext2? Perhaps it's due to the need to load intermediate boot loaders from the filesystem, and that code needs FAT? On Tegra, we jump straight to U-Boot from the boot ROM without the need for intermediate filesystem access, and could make /boot ext2 - do you see any reason not to do this? _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
