arch/arm/mach-socfpga/headsmp.S

   1 /*
   2  *  Copyright (c) 2003 ARM Limited
   3  *  Copyright (c) u-boot contributors
   4  *  Copyright (c) 2012 Pavel Machek <pavel@denx.de>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  */
  10 #include <linux/linkage.h>
  11 #include <linux/init.h>
  12
  13         __CPUINIT
  14         .arch   armv7-a
  15
  16 ENTRY(secondary_trampoline)
  17         movw    r2, #:lower16:cpu1start_addr
  18         movt  r2, #:upper16:cpu1start_addr
  19
  20         /* The socfpga VT cannot handle a 0xC0000000 page offset when loading
  21                 the cpu1start_addr, we bit clear it. Tested on HW and VT. */
  22         bic     r2, r2, #0x40000000
  23
  24         ldr     r0, [r2]
  25         ldr     r1, [r0]
  26         bx      r1
  27
  28 ENTRY(secondary_trampoline_end)
  29
  30 ENTRY(socfpga_secondary_startup)
  31        bl      v7_invalidate_l1
  32        b       secondary_startup
  33 ENDPROC(socfpga_secondary_startup)