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 >> >> >
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