[Qemu-devel] Odroidu2: qemu-system-arm for Exynos4212

[Qemu-devel] Odroidu2: qemu-system-arm for Exynos4212

[Parthiban Nallathambi (RBEI/ECF3)]

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Hello All,

I have an "Odroid u2" board which comes with samsung manufactured SoC Exynos4212. I have tried building the custom kernel, u-boot and rootfs with the help of hardkernel.

But i want to test this image with qemu-system-arm. I have tried searching the compatibility for this SoC, but i didn't found any. I see the qemu is supporting for "Samsung SMDKC210 board (Exynos4210)".

To add, i also tried starting the image (which is compiled for ) with SMDKC210,but i got this error message and the system is not started : "smdkc210 board supports only 2 CPU cores. Ignoring smp_cpus value".

Any help, suggestions, comments are welcome.

Thanks,
Parthiban N


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Re: [Qemu-devel] Odroidu2: qemu-system-arm for Exynos4212

[Andreas Färber]

Hello,

Am 29.01.2014 14:21, schrieb Parthiban Nallathambi (RBEI/ECF3):
> I have an "Odroid u2" board which comes with samsung manufactured SoC
> Exynos4212. I have tried building the custom kernel, u-boot and rootfs
> with the help of hardkernel.
>  
> But i want to test this image with qemu-system-arm. I have tried
> searching the compatibility for this SoC, but i didn't found any. I see
> the qemu is supporting for "Samsung SMDKC210 board (Exynos4210)".
>  
> To add, i also tried starting the image (which is compiled for ) with
> SMDKC210,but i got this error message and the system is not started :
> "smdkc210 board supports only 2 CPU cores. Ignoring smp_cpus value".

That's just a warning and can be suppressed with -smp 2.

Not sure what problem you're running into, but in general the rule of
thumb is that if want to emulate an Odroid U2 you'll need to write a
machine emulation file (reusing the relevant parts of exynos4210 code),
or if you want to emulate an SMDKC210 you'll need U-Boot/fdt/kernel for
that board even if it uses a similar SoC.

As for taking U-Boot out of the equation, you can use -kernel and
-initrd options directly. You neither mentioned your version nor your
command line btw.

Regards,
Andreas

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