Re: Build Kernel 5.5 RC3 for Raspberry4
Looks like device tree's dtb's, as I said seems that your missing alot
as per the fist errors ( GPIO's ) and the size difference you saw.
more info here
https://github.com/raspberrypi/linux/issues/2543
with the link pointing here
https://github.com/raspberrypi/firmware/tree/master/boot
Nige
On Wed, Jan 1, 2020 at 6:15 AM basti <mailinglist@unix-solution.de> wrote:
>
> The kernel was build with
>
> make ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- defconfig
> make ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- menuconfig
> (to check if raspberry pi stuff is enablend)
> make -j`nproc` ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- bindeb-pkg
>
> I get also firmware errors when I boot the original ubuntu image (log
> attached).
> so i think it doesn't matter.
>
> Boot the debian kernel I miss something like:
>
> [ 4.541716] mmc0: new ultra high speed DDR50 SDHC card at address aaaa
> [ 4.555228] mmcblk0: mmc0:aaaa SC32G 29.7 GiB
> [ 4.569103] mmcblk0: p1 p2
>
> RASPBERRYPI_FIRMWARE is set in kernel config. I'm not sure what this
> mean, what steps i have to do that the kernel use the firmware.
> In the log attached you can find this:
>
> [ 0.096980] raspberrypi-firmware soc:firmware: Attached to firmware
> from 2019-08-15 12:03, variant start
> [ 0.100911] raspberrypi-firmware soc:firmware: Firmware hash is
> 9f8431fb7839c7f00f52b81f5822ddab2b31d0db
>
> which file is used there?
>
> On 01.01.20 05:23, Nigel Sollars wrote:
> > Just took a look at the bootlog there, those GPIO failures arnt
> > clever, missing firmware I would take a wild guess that things in the
> > latest kernel tree has changed I did also see an article about newer
> > support for the Pi 4 in the latest kernel ( cant remember if its 5.4
> > or 5.5 ). Do you use 'make menuconfig'?. the size difference you
> > mention with those errors do point to you not enabling the needful
> >
> > Looks like 4.19 has been the latest for along time, I would diff your
> > 5.5 config with the 4.19 and see what you have missing / what has
> > moved / changed. A quick google does not yield much so you could be
> > very much on your own / pioneering this one.
> >
> > Hopefully helpful links
> >
> > Someone to perhaps reach out to for info,
> > https://forum.manjaro.org/t/raspberry-pi-4-5-4-1-kernel/114273
> >
> > 5.5 Graphics / better support by all accounts,
> >
> > https://www.phoronix.com/scan.php?page=article&item=linux-55-features&num=1
> > https://www.linux-arm.info/index.php/1537-linux-5-5-lands-broadcom-bcm2711-raspberry-pi-4-bits
> >
> > again hope this helps
> >
> > Nige
> >
> > On Tue, Dec 31, 2019 at 5:18 AM basti <mailinglist@unix-solution.de> wrote:
> >> Hello,
> >>
> >> I have try to build kernel for raspi4 from upstream (5.5-rc3). Kernel
> >> boot but can't find the SD Card, so there is no partition, no root-fs
> >> and end up in initramfs/busybox.
> >>
> >> Log of serial console is attached. I have used U-boot and dtb from
> >> ubuntu image. My dtb build during kernel build is a half size of the
> >> ubuntu one and doesn't work.
> >>
> >> the custom build kernel works on rpi3 out of the box.
> >>
> >> best regards
> >>
> >> p.s. i build it as deb package
> >>
> >>
> >
>
--
“Science is a differential equation. Religion is a boundary condition.”
Alan Turing
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