[PATCH] ARM: OMAP5: Switch to THUMB mode if needed on secondary CPU

Santosh Shilimkar santosh.shilimkar at ti.com
Tue Apr 22 11:39:37 PDT 2014

On Tuesday 22 April 2014 02:31 PM, Joel Fernandes wrote:
> On my DRA7 system, when the kernel is built in THUMB mode, the secondary CPU
> (Cortex A15) fails to come up causing SMP boot on second CPU to timeout. This
> seems to be because the CPU is in ARM mode once the ROM hands over control to
> the kernel.  Switch to THUMB mode if required once the kernel is control of
> secondary CPU. On OMAP4 on the other hand, it appears to be in THUMB mode on
> entry so this is not required and SMP boot works as is.
> Cc: Santosh Shilimkar <santosh.shilimkar at ti.com>
> Cc: Russell King <linux at arm.linux.org.uk>
> Cc: Nishanth Menon <nm at ti.com>
> Cc: Tony Lindgren <tony at atomide.com>
> Signed-off-by: Joel Fernandes <joelf at ti.com>
> ---
>  arch/arm/mach-omap2/omap-headsmp.S |    8 ++++++--
>  1 file changed, 6 insertions(+), 2 deletions(-)
Looks fine to me ..
Acked-by: Santosh Shilimkar <santosh.shilimkar at ti.com>

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