LXR uboot/arch/arm/mach-uniphier/reset.c

   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * Copyright (C) 2012-2014 Panasonic Corporation
   4 * Copyright (C) 2015-2016 Socionext Inc.
   5 *   Author: Masahiro Yamada <yamada.masahiro@socionext.com>
   6 */
   7
   8#include <cpu_func.h>
   9#include <linux/io.h>
  10#include <asm/secure.h>
  11
  12#include "sc-regs.h"
  13
  14/* If PSCI is enabled, this is used for SYSTEM_RESET function */
  15#ifdef CONFIG_ARMV7_PSCI
  16#define __SECURE        __secure
  17#else
  18#define __SECURE
  19#endif
  20
  21void __SECURE reset_cpu(void)
  22{
  23        u32 tmp;
  24
  25        writel(5, sc_base + SC_IRQTIMSET); /* default value */
  26
  27        tmp  = readl(sc_base + SC_SLFRSTSEL);
  28        tmp &= ~0x3; /* mask [1:0] */
  29        tmp |= 0x0;  /* XRST reboot */
  30        writel(tmp, sc_base + SC_SLFRSTSEL);
  31
  32        tmp = readl(sc_base + SC_SLFRSTCTL);
  33        tmp |= 0x1;
  34        writel(tmp, sc_base + SC_SLFRSTCTL);
  35}
  36