Booting nuvoton qemu machine with -kernel

[Joel Stanley]

Hello nuvoton qemu people,

I was attempting to use the npcm750-evb machine to boot test some
Linux kernel changes, by running the kernel directly without a
filesystem (and therefore not running the bootrom or u-boot). I do
this with the Aspeed machines quite often, and it's really useful.

The machine appeared to hang; attaching gdb showed it jumping around
various addresses but nothing that matched up with the symbols in my
vmlinux.

To reproduce grab these two files:

wget https://builds.tuxbuild.com/1oDtoGMge0cGKE1uoNPpnSSnqwi/zImage
wget 
https://builds.tuxbuild.com/1oDuLU3E0keoRISk6R06PYBeW2G/dtbs/nuvoton-npcm750-evb.dtb

My command line looked like this:

 qemu-system-arm -M npcm750-evb  -nographic -kernel zImage -dtb
nuvoton-npcm750-evb.dtb

Is this something you've tested? Is there something I'm missing?

Cheers,

Joel