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         bx      lr
  23 ENDPROC(save_boot_params)
  24
  25 ENTRY(set_pl310_ctrl_reg)
  26         PUSH    {r4-r11, lr}    @ save registers - ROM code may pollute
  27                                 @ our registers
  28         LDR     r12, =0x102     @ Set PL310 control register - value in R0
  29         .word   0xe1600070      @ SMC #0 - hand assembled because -march=armv5
  30                                 @ call ROM Code API to set control register
  31         POP     {r4-r11, pc}
  32 ENDPROC(set_pl310_ctrl_reg)