Re: [fedora-arm] boot arm fedora via u-boot in qemu

Hi, Played around with u-boot a bit, trying to get it work in qemu, so you don't have to hop through loops copying the kernel+initrd from the disk image to pass it to qemu on the command line. Guess why I'm asking here? No so success so far :( What I did: Started with the fedora uboot-tools package, then tried to adapt vexpress. Look here: https://www.kraxel.org/cgit/jenkins/u-boot/tree/ Patches 1-7 come straight from the fedora package. Patch #8 is a bugfix. Patch #9 is a debug patch (send logs to console). Patch #10 adapts vexpress to the distro patches. Patch #11 makes u-boot pick up the fdt from qemu. All looks fine, uboot finds the virtual sdcard, loads kernel + initrd, passes on the fdt. kernel doesn't boot though, without printing any helpful clues to the serial console. Any ideas what this might be? Any hints how to go on with debugging? thanks, Gerd --------- [ cut here: log from a boot attempt ] ------------- + exec qemu-system-arm -nographic -M vexpress-a9 -m 1G \ -kernel build-vexpress_ca9x4/u-boot \ -dtb /path/to/vexpress-v2p-ca9.dtb -sd f21.img U-Boot 2014.10-rc3-00275-g30ed9a4 (Oct 21 2014 - 12:49:54) DRAM: 1 GiB WARNING: Caches not enabled Flash: 128 MiB MMC: MMC: 0 *** Warning - bad CRC, using default environment In: serial Out: serial Err: serial QEMU: fdt found at 60000000, using it. Net: smc911x-0 Warning: smc911x-0 using MAC address from net device Warning: Your board does not use generic board. Please read doc/README.generic-board and take action. Boards not upgraded by the late 2014 may break or be removed. Hit any key to stop autoboot: 0 switch to partitions #0, OK mmc0 is current device Scanning mmc 0:1... Found /extlinux/extlinux.conf Retrieving file: /extlinux/extlinux.conf 528 bytes read in 34 ms (14.6 KiB/s) Ignoring unknown command: ui Ignoring malformed menu command: autoboot Ignoring malformed menu command: hidden Ignoring unknown command: totaltimeout Fedora-Minimal-armhfp-21-20140905 Boot Options. 1: Fedora-Minimal-armhfp-21-20140905 (3.16.1-301.fc21.armv7hl) Enter choice: 1 1: Fedora-Minimal-armhfp-21-20140905 (3.16.1-301.fc21.armv7hl) Retrieving file: /initramfs-3.16.1-301.fc21.armv7hl.img 29202689 bytes read in 3788 ms (7.4 MiB/s) Retrieving file: /vmlinuz-3.16.1-301.fc21.armv7hl 5460688 bytes read in 762 ms (6.8 MiB/s) append: ro root=UUID=55c3c475-37c8-41f8-ac34-3c153cde02a2 console=ttyAMA0,115200n8 Kernel image @ 0x80008000 [ 0x000000 - 0x5352d0 ] ## Flattened Device Tree blob at 60000000 Booting using the fdt blob at 0x60000000 Loading Ramdisk to 7e307000, end 7fee0901 ... OK Loading Device Tree to 7e2f8000, end 7e306339 ... OK Starting kernel ...