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Diffstat (limited to 'arch/arm/mach-ux500/headsmp.S')
-rw-r--r-- | arch/arm/mach-ux500/headsmp.S | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/arch/arm/mach-ux500/headsmp.S b/arch/arm/mach-ux500/headsmp.S new file mode 100644 index 0000000..a6be2cd --- /dev/null +++ b/arch/arm/mach-ux500/headsmp.S @@ -0,0 +1,38 @@ +/* + * Copyright (c) 2009 ST-Ericsson + * This file is based ARM Realview platform + * Copyright (c) 2003 ARM Limited + * All Rights Reserved + * + * 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> + + __INIT + +/* + * U8500 specific entry point for secondary CPUs. + */ +ENTRY(u8500_secondary_startup) + mrc p15, 0, r0, c0, c0, 5 + and r0, r0, #15 + adr r4, 1f + ldmia r4, {r5, r6} + sub r4, r4, r5 + add r6, r6, r4 + dsb +pen: ldr r7, [r6] + cmp r7, r0 + bne pen + + /* + * we've been released from the holding pen: secondary_stack + * should now contain the SVC stack for this core + */ + b secondary_startup + +1: .long . + .long pen_release |