On Fri, 13 Sep 2019 13:32:59 +0000
Guillaume Gardet
-----Original Message----- From: Michal Suchánek
Sent: 13 September 2019 15:24 To: Guillaume Gardet Cc: opensuse-kernel@opensuse.org; Michal Kubecek ; Andreas Färber Subject: Re: [opensuse-kernel] [PATCH] rpm/config.sh: Enable building DTBs On Fri, 13 Sep 2019 12:53:44 +0000 Guillaume Gardet
wrote: -----Original Message----- From: Michal Suchánek
Sent: 13 September 2019 14:26 To: Guillaume Gardet Cc: opensuse-kernel@opensuse.org; Michal Kubecek ; Andreas Färber Subject: Re: [opensuse-kernel] [PATCH] rpm/config.sh: Enable building DTBs On Fri, 13 Sep 2019 12:04:43 +0000 Guillaume Gardet
wrote: -----Original Message----- From: Michal Suchánek
Sent: 13 September 2019 13:45 To: Guillaume Gardet Cc: opensuse-kernel@opensuse.org; Michal Kubecek ; Andreas Färber Subject: Re: [opensuse-kernel] [PATCH] rpm/config.sh: Enable building DTBs On Fri, 13 Sep 2019 11:05:27 +0000 Guillaume Gardet
wrote: > > -----Original Message----- > > From: Michal Suchánek
> > Sent: 13 September 2019 13:04 > > To: Guillaume Gardet > > Cc: opensuse-kernel@opensuse.org; Michal Kubecek ; > > Andreas Färber > > Subject: Re: [opensuse-kernel] [PATCH] rpm/config.sh: Enable > > building DTBs > > > > On Fri, 13 Sep 2019 10:51:50 +0000 Guillaume Gardet > > wrote: > > > > > Cc'ing Andreas. > > > > > > > -----Original Message----- > > > > From: Michal Suchánek > > > > Sent: 13 September 2019 12:34 > > > > To: Guillaume Gardet > > > > Cc: opensuse-kernel@opensuse.org; Michal Kubecek > > > > > > Subject: Re: [opensuse-kernel] [PATCH] rpm/config.sh: > > > > Enable building DTBs > > > > > > > > On Fri, 13 Sep 2019 09:25:37 +0200 Guillaume Gardet > > > > wrote: > > > > > > > > 1) what consumes these DTBs? > > > > > > > > They are not maintained in the SLE branches so if > > > > anything does use them it should change. > > > > > > We need DTBs for most ARM systems, so this is a mandatory requirement. > > > > I don't dispute that DTBs are needed. But do they come from > > the kernel package? > > Yes, they are. > From arch/arm/boot/dts/ and arch/arm64/boot/dts/ Yes, there are DTBs in the kernel. What exactly uses these unmaintained DTBs?
Why unmaintained? They are maintained as the rest of sources of the Linux kernel. Because nobody backports fixes for them. Non-UEFI ARM systems require those DTB to boot a Linux kernel. The DTB is passed by the bootloader (u-boot/grub).
A DTB is passed by u-boot/grub. Does it come from the kernel package, though?
Yes, it does.
How exactly?
U-Boot loads the right DTB for the current platform, from filesystem to RAM and passes the pointer to the kernel. You may find this interesting, if you do not know DTB: https://events.static.linuxfound.org/sites/events/files/slides/petazzoni-dev...
I know DTBs. What I don't know is where the DTB that gets loaded if you boot (open)SUSE comes from, specifically. Thanks Michal
Guillaume
Thanks
Michal
Guillaume
Thanks
Michal
Cheers, Guillaume
Thanks
Michal
> > Thanks, > Guillaume > > > > > Thanks > > > > Michal > > > > > > > > > > > > > 2) it will noy build due to obsolete dtc in SLE15. > > > > > > We must update dtc, then. Could you take care of it, please? > > > Because it > > must go through SLE, I think. > > > > > > Thanks, > > > Guillaume > > > > > > > > > > > > > > Thanks > > > > > > > > Michal > > > > > > > > > > > > > Signed-off-by: Guillaume Gardet > > > > >
> > > > > > > > > > --- > > > > > This patch is for 15.2 branch. > > > > > > > > > > rpm/config.sh | 2 ++ > > > > > 1 file changed, 2 insertions(+) > > > > > > > > > > diff --git a/rpm/config.sh b/rpm/config.sh index > > > > > 904bea6cf36..76cbef8def5 100644 > > > > > --- a/rpm/config.sh > > > > > +++ b/rpm/config.sh > > > > > @@ -4,6 +4,8 @@ SRCVERSION=5.3-rc8 VARIANT= # enable > > > > > kernel module compression COMPRESS_MODULES="xz" > > > > > +# Compile binary devicetrees BUILD_DTBS="Yes" > > > > > # Use new style livepatch package names > > > > > LIVEPATCH=livepatch # buildservice projects to build > > > > > the kernel against > > > > > > > > -- > > > > To unsubscribe, e-mail: opensuse- kernel+unsubscribe@opensuse.org > > > > To contact the owner, e-mail: opensuse- kernel+owner@opensuse.org > > > > > > IMPORTANT NOTICE: The contents of this email and any > > > attachments are > > confidential and may also be privileged. If you are not the > > intended recipient, please notify the sender immediately and > > do not disclose the contents to any other person, use it for > > any purpose, or store or copy the information in any medium. > > > > -- > > To unsubscribe, e-mail: opensuse- kernel+unsubscribe@opensuse.org > > To contact the owner, e-mail: opensuse- kernel+owner@opensuse.org > > IMPORTANT NOTICE: The contents of this email and any > attachments are confidential and may also be privileged. If you are not the intended recipient, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy the information in any medium. Thank you. > N_____r__y___Z)z{.___w_______&__________'__- ___w_zf___^___zG___~_ ___^___z__ -- To unsubscribe, e-mail: opensuse- kernel+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse- kernel+owner@opensuse.org
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