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

From: [email-masked] (Santosh Shilimkar)
Date: Tue, 22 Apr 2014 14:39:37 -0400

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 <[email-masked]>
> Cc: Russell King <[email-masked]>
> Cc: Nishanth Menon <[email-masked]>
> Cc: Tony Lindgren <[email-masked]>
> Signed-off-by: Joel Fernandes <[email-masked]>
> ---
>  arch/arm/mach-omap2/omap-headsmp.S |    8 ++++++--
>  1 file changed, 6 insertions(+), 2 deletions(-)
> 
Looks fine to me ..
Acked-by: Santosh Shilimkar <[email-masked]>