headsmp.S 867 B

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  1. /*
  2. * linux/arch/arm/mach-integrator/headsmp.S
  3. *
  4. * Copyright (c) 2003 ARM Limited
  5. * All Rights Reserved
  6. *
  7. * This program is free software; you can redistribute it and/or modify
  8. * it under the terms of the GNU General Public License version 2 as
  9. * published by the Free Software Foundation.
  10. */
  11. #include <linux/linkage.h>
  12. #include <linux/init.h>
  13. __INIT
  14. /*
  15. * Integrator specific entry point for secondary CPUs. This provides
  16. * a "holding pen" into which all secondary cores are held until we're
  17. * ready for them to initialise.
  18. */
  19. ENTRY(integrator_secondary_startup)
  20. adr r4, 1f
  21. ldmia r4, {r5, r6}
  22. sub r4, r4, r5
  23. ldr r6, [r6, r4]
  24. pen: ldr r7, [r6]
  25. cmp r7, r0
  26. bne pen
  27. /*
  28. * we've been released from the holding pen: secondary_stack
  29. * should now contain the SVC stack for this core
  30. */
  31. b secondary_startup
  32. 1: .long .
  33. .long phys_pen_release