1 /* 2 * (C) Copyright 2012 Stephen Warren 3 * 4 * See file CREDITS for list of people who contributed to this 5 * project. 6 * 7 * This program is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU General Public License 9 * version 2 as published by the Free Software Foundation. 10 * 11 * This program is distributed in the hope that it will be useful, but 12 * WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 */ 16 17 #include <common.h> 18 #include <asm/io.h> 19 #include <asm/arch/wdog.h> 20 21 #define RESET_TIMEOUT 10 22 23 void reset_cpu(ulong addr) 24 { 25 struct bcm2835_wdog_regs *regs = 26 (struct bcm2835_wdog_regs *)BCM2835_WDOG_PHYSADDR; 27 uint32_t rstc; 28 29 rstc = readl(®s->rstc); 30 rstc &= ~BCM2835_WDOG_RSTC_WRCFG_MASK; 31 rstc |= BCM2835_WDOG_RSTC_WRCFG_FULL_RESET; 32 33 writel(BCM2835_WDOG_PASSWORD | RESET_TIMEOUT, ®s->wdog); 34 writel(BCM2835_WDOG_PASSWORD | rstc, ®s->rstc); 35 } 36