I'm looking for the source code of a specific u-boot version.

[Mario Marietto]

Hello.

Can someone provide the right link to download u-boot-2017.0.5 , please ?

I've found it here,but I'm not sure that it's the correct version :

https://src.fedoraproject.org/repo/pkgs/uboot-tools/u-boot-2017.05.tar.bz2/sha512/be270f9242a72b05463092a022bbabd54996762de1ff23bf7575124ac02e62f49572a4e2f6f571a5019047d40027e56e35593b5cc373c4a5a39b100c3377ba93/

Can you confirm it ? thanks.

On Thu, Dec 28, 2023 at 1:14 AM Tony Dinh <mibodhi at gmail.com> wrote:
>
> Hi Mario and Heinrich,
>
> On Wed, Dec 27, 2023 at 12:23 PM Mario Marietto <marietto2008 at gmail.com> wrote:
> >
> > Hello.
> >
> > I'm trying to boot FreeBSD for arm32 bit as DomU on my ARM Chromebook
> > SNOW with xen. Basically there are two ways to accomplish this task :
> >
> >
> > 1) to write a patch that allows the FreeBSD kernel to boot as a zImage
> > file. This could be accomplished applying this patch to a specific
> > file that's on the source code of FreeBSD :
> >
> >
> > https://xenbits.xen.org/gitweb/?p=p...8;hb=0782e25d98cc1391472717035f986c979edef0c9
> >
> >
> >
> > This patch was written by Julien Grall a lot of time ago and now it
> > does not work anymore. This is the reason explain by the xen
> > developers :
> >
> >
> >
> > It appears FreeBSD-CURRENT removed the last step converting the kernel
> > file to kernel.bin.The patch can be readily rebased, but without
> > kernel.bin that doesn't do too much.
> >
> >
> >
> > So,without a rebase of that patch the first option is not applicable.
> > And I'm not able to fix it.
> >
> >
> > 2) booting FreeBSD using U-Boot,as explained to me by a xen developer :
> >
> >
> > I was trying to explain why and how Julien's patch works so that you
> > could be the one to re-do something similar or fix the patch on the
> > FreeBSD kernel that you are working with. I am happy to help review
> > and write patches but I don't work with the FreeBSD kernel so I
> > wouldn't be able to help you quickly. However, I might have a
> > suggestion. Do you know if FreeBSD can be booted by U-Boot ?
> > Because
> > U-Boot definitely boots as Xen on ARM guest firmware/bootloader. You
> > should be able to build U-Boot and use the U-Boot binary as Xen guest
> > kernel, then U-Boot could load FreeBSD from disk or network and start
> > it. For instance as domU config file:
> >
> > kernel="/home/petalinux/u-boot.bin"
> > disk = [ '/home/petalinux/test.img,raw,xvda' ]
> >
> >
> > Actually I'm working on the idea n. 2. Basically I need to find the
> > proper u-boot file that's able to boot the image of FreeBSD that I
> > have installed (13.2 for arm32 bit). Maybe I found it here :
> >
> >
> > http://commondatastorage.googleapis.com/chromeos-localmirror/distfiles/nv_uboot-snow-simplefb.kpart.bz2
> >
> >
> > I found that link inside this tutorial :
> >
> >
> > https://wiki.freebsd.org/arm/Chromebook
> >
> >
> > the version of u-boot that has been embedded in that file is the following one :
> >
> >
> > # strings nv_uboot-snow-simplefb.kpart | grep U-Boot
> > U-Boot 2011.12-gc1f6280 (May 27 2013 - 15:06:59) for SMDK5250
> >
> >
> > So the question is easy : I need to find the source code of that old
> > version of u-boot,because once compiled,it will give me the proper
> > u-boot.bin kernel / bootloader file that maybe will be able to boot
> > FreeBSD.
>
> Yes, it can boot a 32-bit ARM board. I'm not a FreeBSD person, but
> I've helped a FreeBSD user booting a 32-bit ARM box with u-boot
> (GoFlexHome Marvell Kirkwood 6281). The u-boot version was 2017.05. I
> used an out-of-tree u-boot build. This u-boot executed the ubldr to
> boot FreeBSD.
>
> Please see here:
> https://forum.doozan.com/read.php?3,49039,82059#msg-82059
>
> It's been so long, I don't remember the details. Just to confirm what
> Heinrich said that u-boot can indeed boot 32-bit FreeBSD, since many
> years ago.
>
> All the best,
> Tony
>
> >
> >
> > --
> > Mario.



-- 
Mario.