[PATCH v2 1/2] ARM: Add cpu_resume_arm() for firmwares that resume in ARM state

Stephen Boyd sboyd at codeaurora.org
Tue Jun 2 17:11:20 PDT 2015

On 06/03, Russell King - ARM Linux wrote:
> On Tue, Jun 02, 2015 at 12:12:57PM -0700, Stephen Boyd wrote:
> > Some platforms always enter the kernel in the ARM state even if
> > the kernel is compiled for THUMB2. Add a small wrapper on top of
> > cpu_resume() that switches into THUMB2 state.
> > 
> > This fixes a problem reported by Kevin Hilman on next-20150601
> > where the ifc6410 fails to boot a THUMB2 kernel because the
> > platform's firmware always enters the kernel in ARM mode from
> > deep idle states.
> I think this bit of the commit message isn't quite correct: this will
> only resolve the boot problem with a T2 kernel when the failing platform
> is converted to use the cpu_resume_arm() entry point.
> Apart from that, the patch looks good to me, thanks.

Sure, it could say "This provides the functionality to fix a problem
reported by..."

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