[PATCH 3.10 108/143] ARM: SoCFPGA: Fix secondary CPU startup in thumb2 kernel

[Willy Tarreau]

From: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>

commit 5616f36713ea77f57ae908bf2fef641364403c9f upstream.

The secondary CPU starts up in ARM mode. When the kernel is compiled in
thumb2 mode we have to explicitly compile the secondary startup
trampoline in ARM mode, otherwise the CPU will go to Nirvana.

Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
Reported-by: Steffen Trumtrar <s.trumtrar@xxxxxxxxxxxxxx>
Suggested-by: Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx>
Signed-off-by: Dinh Nguyen <dinguyen@xxxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Kevin Hilman <khilman@xxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Willy Tarreau <w@xxxxxx>
---
 arch/arm/mach-socfpga/headsmp.S | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-socfpga/headsmp.S b/arch/arm/mach-socfpga/headsmp.S
index 9004bfb..a6f5519 100644
--- a/arch/arm/mach-socfpga/headsmp.S
+++ b/arch/arm/mach-socfpga/headsmp.S
@@ -12,6 +12,7 @@
 
 	__CPUINIT
 	.arch	armv7-a
+	.arm
 
 ENTRY(secondary_trampoline)
 	movw	r2, #:lower16:cpu1start_addr
-- 
2.8.0.rc2.1.gbe9624a