arch/arm/cpu/armv7/omap-common/lowlevel_init.S

   1 /*
   2  * Board specific setup info
   3  *
   4  * (C) Copyright 2010
   5  * Texas Instruments, <www.ti.com>
   6  *
   7  * Author :
   8  *      Aneesh V        <aneesh@ti.com>
   9  *
  10  * SPDX-License-Identifier:     GPL-2.0+
  11  */
  12
  13 #include <config.h>
  14 #include <asm/arch/omap.h>
  15 #include <asm/omap_common.h>
  16 #include <asm/arch/spl.h>
  17 #include <linux/linkage.h>
  18
  19 ENTRY(save_boot_params)
  20         ldr     r1, =OMAP_SRAM_SCRATCH_BOOT_PARAMS
  21         str     r0, [r1]
  22         b       save_boot_params_ret
  23 ENDPROC(save_boot_params)
  24
  25 ENTRY(omap_smc1)
  26         PUSH    {r4-r12, lr}    @ save registers - ROM code may pollute
  27                                 @ our registers
  28         MOV     r12, r0         @ Service
  29         MOV     r0, r1          @ Argument
  30         DSB
  31         DMB
  32 #if __GNUC__ >= 4 && __GNUC_MINOR__ >= 6 && defined(__ARM_ARCH_7A__)
  33         .arch_extension sec
  34         smc     #0              @ call ROM Code API to set control register
  35 #else
  36         .word   0xe1600070
  37 #endif
  38         POP     {r4-r12, pc}
  39 ENDPROC(omap_smc1)