arch/arm/cpu/armv7/s5pc1xx/reset.S

   1 /*
   2  * Copyright (c) 2009 Samsung Electronics.
   3  * Minkyu Kang <mk7.kang@samsung.com>
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 #include <asm/arch/cpu.h>
   9 #include <linux/linkage.h>
  10
  11 #define S5PC100_SWRESET                 0xE0200000
  12 #define S5PC110_SWRESET                 0xE0102000
  13
  14 ENTRY(reset_cpu)
  15         ldr     r1, =S5PC100_PRO_ID
  16         ldr     r2, [r1]
  17         ldr     r4, =0x00010000
  18         and     r4, r2, r4
  19         cmp     r4, #0
  20         bne     110f
  21         /* S5PC100 */
  22         ldr     r1, =S5PC100_SWRESET
  23         ldr     r2, =0xC100
  24         b       200f
  25 110:    /* S5PC110 */
  26         ldr     r1, =S5PC110_SWRESET
  27         mov     r2, #1
  28 200:
  29         str     r2, [r1]
  30 _loop_forever:
  31         b       _loop_forever
  32 ENDPROC(reset_cpu)