On 01/19/2012 01:15 PM, Peter Maydell wrote: > On 19 January 2012 15:43, Mark Langsdorf <mark.langsd...@calxeda.com> wrote: >> + highbank_binfo.board_id = -1; /* provided by deviceTree */ > > This doesn't work, because arm_boot.c does: > bootloader[1] |= info->board_id & 0xff; > bootloader[2] |= (info->board_id >> 8) & 0xff; > > and so when you try to boot the kernel it does this: > > ===begin=== > cam-vm-266:maverick:qemu-jeos$ > ~/linaro/qemu-from-laptop/qemu/arm-softmmu/qemu-system-arm -kernel > build-arm/linux/arch/arm/boot/zImage -initrd build-arm/initramfs.img > -M highbank -serial stdio > > Error: unrecognized/unsupported machine ID (r1 = 0x0000ffff). > > Available machine support: > > ID (hex) NAME > ffffffff Highbank > > Please check your kernel config and/or bootloader. > ===endit===
Works for me, but it requires a kernel build with the device tree dtb appended to it. ===begin=== mlangsdorf@mjl-dell:~/work/qemu$ ./mainline_qemu/arm-softmmu/qemu-system-arm -nographic -M highbank -kernel linux-2.6/kernel_with_dtb.img -drive id=disk,if=ide,file=sataDisk -device ide-drive,drive=disk,bus=ide.0 -append "root=/dev/sda2 console=ttyAMA0,38400 debug earlyprintk" -m 4089 -smp 3 [ 0.000000] Booting Linux on physical CPU 0 [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Linux version 3.2.0+ (mlangsdorf@mjl-dell) (gcc version 4.6.1 (Ubuntu/Linaro 4.6.1-9ubuntu3) ) #72 SMP Wed Jan 18 15:10:31 CST 2012 [ 0.000000] CPU: ARMv7 Processor [410fc090] revision 0 (ARMv7), cr=10c5387d [ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache [ 0.000000] Machine: Highbank, model: Calxeda Highbank [ 0.000000] Memory policy: ECC disabled, Data cache writealloc [ 0.000000] On node 0 totalpages: 1046784 ===endit=== --Mark Langsdorf Calxeda, Inc.
