arch/arm/mach-uniphier/reset.c

   1 /*
   2  * Copyright (C) 2012-2015 Masahiro Yamada <yamada.masahiro@socionext.com>
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0+
   5  */
   6
   7 #include <common.h>
   8 #include <linux/io.h>
   9 #include <mach/sc-regs.h>
  10
  11 void reset_cpu(unsigned long ignored)
  12 {
  13         u32 tmp;
  14
  15         writel(5, SC_IRQTIMSET); /* default value */
  16
  17         tmp  = readl(SC_SLFRSTSEL);
  18         tmp &= ~0x3; /* mask [1:0] */
  19         tmp |= 0x0;  /* XRST reboot */
  20         writel(tmp, SC_SLFRSTSEL);
  21
  22         tmp = readl(SC_SLFRSTCTL);
  23         tmp |= 0x1;
  24         writel(tmp, SC_SLFRSTCTL);
  25 }