On Mon, Nov 15, 2010, Wolfgang Denk wrote: > Do you have a working qemu setup and/or documentation how to run > U-Boot on such an ARM config?
Sometimes I do ;-) I use either: * Ubuntu QEMU packages - qemu-kvm-extras package has qemu-system-arm; it's usually fairly old because it's built from the qemu-kvm trees/releases * Linaro QEMU packages - currently the "qemu-maemo" package in this PPA https://launchpad.net/~linaro-maintainers/+archive/tools/+packages provides the qemu-maemo-system-arm command; can be installed along qemu-kvm-extras; this has patches to support OMAP machines from the qemu-maemo/-meego projects, hence the name; in the future, this might be a qemu-linaro instead * upstream QEMU built from git While U-Boot supports integrator, versatile and vexpress, QEMU only supports the first two. I get varying success depending on the exact combination of emulated machine and version of QEMU. Today, I tried the binary u-boot downloads from http://arm.com/community/software-enablement/linux.php (Linux OS Downloads tab) with with qemu-maemo 0.0~20100921+871d996-0ubuntu1~linaro1 and qemu-kvm-extras 0.13.0+noroms-0ubuntu3: machine: | realview-eb realview-pbx-a9 versatilepb QEMU: | ----------------+---------------------------------------- qemu-maemo | partial[1] works works qemu-kvm-extras | partial[1] works crash[2] Unfortunately, these are not built from upstream u-boot sources; I tried building some ARM boards from upstream u-boot with v2010.09 and got these results: machine: | integratorcp versatilepb QEMU: | ----------------+------------------------- qemu-maemo | crash[3] partial[4] qemu-kvm-extras | crash[3] partial[4] So I'm afraid I couldn't find a fully working combination of U-Boot supported board + QEMU, but I didn't try QEMU tip; I'm Cc:ing Peter who cares for QEMU in Linaro, maybe he has more idea or is tempted to try a tip QEMU :-) If you want to reproduce, run something like: qemu-system-arm -M versatilepb -serial stdio \ -kernel u-boot_bin_u-boot_versatilepb.axf or: qemu-system-arm -nographic -M versatilepb \ -kernel u-boot_bin_u-boot_versatilepb.axf replace qemu-system-arm with qemu-maemo-system-arm if you use qemu-maemo [1] crashes while initializing the NIC; qemu: hardware error: smc91c111_write: Bad reg 0:6 [2] qemu: hardware error: arm_timer_write: Bad offset 101e1fe0 [3] qemu: hardware error: pl011_write: Bad offset 14 [4] crashes after detecting 0 Bytes of DRAM: DRAM: 0 Bytes qemu: fatal: Trying to execute code outside RAM or ROM at 0x34000000 -- Loïc Minier _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot