On Mon, Apr 06, 2020 at 11:25:40AM +0200, Corentin Labbe wrote: > On Mon, Apr 06, 2020 at 10:16:00AM +0100, Russell King - ARM Linux admin wrote: > > On Mon, Apr 06, 2020 at 10:27:20AM +0200, Corentin Labbe wrote: > > > Hello > > > > > > I am trying to add the last missing Allwinner Soc in kernelci: the A80. > > > But this SoC does not have any way to be used in kernelci, no USB nor network in uboot. > > > So I have tried to fake uboot since the kernel has network support and run the new kernel via kexec. > > > > > > But kexec 2.0.18 fail to work: > > > kexec --force /tmp/kernel --initrd /tmp/ramdisk --dtb /tmp/dtb --command-line='console=ttyS0,115200n8 root=/dev/ram0 earlycon=uart,mmio32,0x7000000 ip=dhcp' > > > > What happens if you omit the dtb argument? > > > > No change without dtb > > I have also tried to add --mem-mim and --mem-max without any change. > I given mem according to what I saw in /proc/iomem > 20000000-9fffffff : System RAM > 20008000-207fffff : Kernel code > 20900000-209a0c87 : Kernel data > So I gave --mem-min 0x30000000 --mem-max 0x9fffffff > Anyway, the result is always the same. The next step is to enable the early debugging - first in the decompressor - add #define DEBUG to the top of arch/arm/boot/compressed/head.S Also enable DEBUG_LL in the kernel and use earlyprintk to see if you can get anything from the new kernel. -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTC broadband for 0.8mile line in suburbia: sync at 10.2Mbps down 587kbps up _______________________________________________ kexec mailing list kexec@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/kexec
