From aa7eb2bb4e4a22e41bbe4612ff46e5885b13c33e Mon Sep 17 00:00:00 2001 From: Michal Simek Date: Wed, 20 Mar 2013 13:50:12 +0100 Subject: arm: zynq: Add smp support Zynq is dual core Cortex A9 which starts always at zero. Using simple trampoline ensure long jump to secondary_startup code. Signed-off-by: Michal Simek Signed-off-by: Steffen Trumtrar --- arch/arm/mach-zynq/headsmp.S | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 arch/arm/mach-zynq/headsmp.S (limited to 'arch/arm/mach-zynq/headsmp.S') diff --git a/arch/arm/mach-zynq/headsmp.S b/arch/arm/mach-zynq/headsmp.S new file mode 100644 index 000000000000..d183cd234a9b --- /dev/null +++ b/arch/arm/mach-zynq/headsmp.S @@ -0,0 +1,24 @@ +/* + * Copyright (c) 2013 Steffen Trumtrar + * Copyright (c) 2012-2013 Xilinx + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include +#include + + __CPUINIT + +ENTRY(zynq_secondary_trampoline) + ldr r0, [pc] + bx r0 +.globl zynq_secondary_trampoline_jump +zynq_secondary_trampoline_jump: + /* Space for jumping address */ + .word /* cpu 1 */ +.globl zynq_secondary_trampoline_end +zynq_secondary_trampoline_end: + +ENDPROC(zynq_secondary_trampoline) -- cgit v1.2.1