arch/arm/mach-exynos/soc.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (c) 2010 Samsung Electronics.
   4  * Minkyu Kang <mk7.kang@samsung.com>
   5  */
   6
   7 #include <common.h>
   8 #include <asm/io.h>
   9 #include <asm/system.h>
  10
  11 #ifdef CONFIG_TARGET_ESPRESSO7420
  12 /*
  13  * Exynos7420 uses CPU0 of Cluster-1 as boot CPU. Due to this, branch_if_master
  14  * fails to identify as the boot CPU as the master CPU. As temporary workaround,
  15  * setup the slave CPU boot address as "_main".
  16  */
  17 extern void _main(void);
  18 void *secondary_boot_addr = (void *)_main;
  19 #endif /* CONFIG_TARGET_ESPRESSO7420 */
  20
  21 void reset_cpu(ulong addr)
  22 {
  23 #ifdef CONFIG_CPU_V7A
  24         writel(0x1, samsung_get_base_swreset());
  25 #endif
  26 }
  27
  28 #if !CONFIG_IS_ENABLED(SYS_DCACHE_OFF)
  29 void enable_caches(void)
  30 {
  31         /* Enable D-cache. I-cache is already enabled in start.S */
  32         dcache_enable();
  33 }
  34 #endif