On 08/15/2012 11:05 AM, Koteswararao Nelakurthi wrote:
> Hi,
>
> While executing reboot call on my ARMv7 board, the system hangs during
> cpu_proc_fin() call.
>
> Commenting out this line of code, the reboot works properly.
>
> Index: mvlinux/arch/arm/mm/proc-v7.S
> ===================================================================
> --- mvlinux.orig/arch/arm/mm/proc-v7.S 2012-08-15 14:12:50.396190110 +0900
> +++ mvlinux/arch/arm/mm/proc-v7.S 2012-08-15 14:21:28.730760416 +0900
> @@ -51,7 +51,7 @@
> mrc p15, 0, r0, c1, c0, 0 @ ctrl register
> bic r0, r0, #0x1000 @ ...i............
> bic r0, r0, #0x0006 @ .............ca.
> - mcr p15, 0, r0, c1, c0, 0 @ disable caches
> + #mcr p15, 0, r0, c1, c0, 0 @ disable caches
> ldmfd sp!, {pc}
> ENDPROC(cpu_v7_proc_fin)
>
> is it a CPU_V7 specific issue?
>
> Please provide your valuable input to fix the issue.
>
> Any hint also..will help me in debugging further in this issue.
>
> I have seen above fix in one of the linaro mailing list.
>
> Regards,
> koteswararao.
>
I don't think there is any issue with cpu_v7_proc_fin. In case of the
issue that I was facing, it was fixed by adding a proper reset hook to
my platform.
Please go through following link. I hope that would help.
http://www.mail-archive.com/linux-samsung-soc@vger.kernel.org/msg06170.html
--
Tushar Behera
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