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| author | Michal Simek <michal.simek@xilinx.com> | 2013-03-20 13:50:12 +0100 |
|---|---|---|
| committer | Michal Simek <michal.simek@xilinx.com> | 2013-04-04 09:24:00 +0200 |
| commit | aa7eb2bb4e4a22e41bbe4612ff46e5885b13c33e (patch) | |
| tree | ef3f5e0578ee98f1e95b686796a64a80807ef795 /arch/arm/mach-zynq/headsmp.S | |
| parent | 2f34e0a58f34db094257e33b461d58b578004b67 (diff) | |
| download | blackbird-op-linux-aa7eb2bb4e4a22e41bbe4612ff46e5885b13c33e.tar.gz blackbird-op-linux-aa7eb2bb4e4a22e41bbe4612ff46e5885b13c33e.zip | |
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 <michal.simek@xilinx.com>
Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Diffstat (limited to 'arch/arm/mach-zynq/headsmp.S')
| -rw-r--r-- | arch/arm/mach-zynq/headsmp.S | 24 |
1 files changed, 24 insertions, 0 deletions
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 <s.trumtrar@pengutronix.de> + * 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 <linux/linkage.h> +#include <linux/init.h> + + __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) |
