SoCFPGA with CONFIG_THUMB2_KERNEL boot error

[Sascha Hauer]

On Wed, Apr 20, 2016 at 11:43:30AM +0200, Ard Biesheuvel wrote:
> (replying to self)
> 
> On 20 April 2016 at 11:39, Ard Biesheuvel <ard.biesheuvel at linaro.org> wrote:
> > (+ Arnd)
> >
> > On 20 April 2016 at 11:25, Dave Martin <Dave.Martin at arm.com> wrote:
> >> On Tue, Apr 19, 2016 at 04:02:20PM +0200, Steffen Trumtrar wrote:
> >>> Hi!
> >>>
> >>> According to kernelci.org (and validating on my own hardware), the current
> >>> socfpga mainline kernel has an issue with CONFIG_THUMB2_KERNEL enabled.
> >>>
> >>> https://storage.kernelci.org/mainline/v4.6-rc4-11-g12566cc35d0e/arm-multi_v7_defconfig/lab-khilman/boot-socfpga_cyclone5_de0_sockit.html
> >>>
> >>> vs
> >>>
> >>> https://storage.kernelci.org/mainline/v4.6-rc4-11-g12566cc35d0e/arm-multi_v7_defconfig+CONFIG_THUMB2_KERNEL=y/lab-khilman/boot-socfpga_cyclone5_de0_sockit.html
> >>>
> >>> Both boot successfully, but notice that the board fails to bring up CPU1 if
> >>> thumb2 support is enabled.
> >>>
> >>> Any ideas why this might be happening?
> >>
> 
> Actually, this looks like a problem with the secondary entry point to
> me. Could you try this?

Been there, done that. Unfortunately this does not solve the problem.

Sascha

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