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author | Luka Perkov <luka@openwrt.org> | 2012-11-06 11:16:41 +0000 |
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committer | Luka Perkov <luka@openwrt.org> | 2012-11-06 11:16:41 +0000 |
commit | 5fabd70da11abc93096d3008376cbc3ba891fd47 (patch) | |
tree | c33c664da49037a91a25597c2d522b2810428e8e /target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/headsmp.S | |
parent | ce0ec8cf6f2d8b65aa59faaa0f8cb60bf56dce17 (diff) | |
download | upstream-5fabd70da11abc93096d3008376cbc3ba891fd47.tar.gz upstream-5fabd70da11abc93096d3008376cbc3ba891fd47.tar.bz2 upstream-5fabd70da11abc93096d3008376cbc3ba891fd47.zip |
cns3xxx: use files directory
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@34101 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/headsmp.S')
-rw-r--r-- | target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/headsmp.S | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/headsmp.S b/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/headsmp.S new file mode 100644 index 0000000000..456fd67f97 --- /dev/null +++ b/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/headsmp.S @@ -0,0 +1,42 @@ +/* + * linux/arch/arm/mach-cns3xxx/headsmp.S + * + * Cloned from linux/arch/arm/plat-versatile/headsmp.S + * + * 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 + +/* + * CNS3XXX specific entry point for secondary CPUs. This provides + * a "holding pen" into which all secondary cores are held until we're + * ready for them to initialise. + */ +ENTRY(cns3xxx_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 +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 + + .align +1: .long . + .long pen_release |