1*4882a593Smuzhiyun /* 2*4882a593Smuzhiyun * (C) Copyright 2007-2008 3*4882a593Smuzhiyun * Stelian Pop <stelian@popies.net> 4*4882a593Smuzhiyun * Lead Tech Design <www.leadtechdesign.com> 5*4882a593Smuzhiyun * 6*4882a593Smuzhiyun * (C) Copyright 2013 7*4882a593Smuzhiyun * Bo Shen <voice.shen@atmel.com> 8*4882a593Smuzhiyun * 9*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+ 10*4882a593Smuzhiyun */ 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun #include <common.h> 13*4882a593Smuzhiyun #include <asm/io.h> 14*4882a593Smuzhiyun #include <asm/arch/hardware.h> 15*4882a593Smuzhiyun #include <asm/arch/at91_rstc.h> 16*4882a593Smuzhiyun 17*4882a593Smuzhiyun /* Reset the cpu by telling the reset controller to do so */ reset_cpu(ulong ignored)18*4882a593Smuzhiyunvoid reset_cpu(ulong ignored) 19*4882a593Smuzhiyun { 20*4882a593Smuzhiyun at91_rstc_t *rstc = (at91_rstc_t *)ATMEL_BASE_RSTC; 21*4882a593Smuzhiyun 22*4882a593Smuzhiyun writel(AT91_RSTC_KEY 23*4882a593Smuzhiyun | AT91_RSTC_CR_PROCRST /* Processor Reset */ 24*4882a593Smuzhiyun | AT91_RSTC_CR_PERRST /* Peripheral Reset */ 25*4882a593Smuzhiyun #ifdef CONFIG_AT91RESET_EXTRST 26*4882a593Smuzhiyun | AT91_RSTC_CR_EXTRST /* External Reset (assert nRST pin) */ 27*4882a593Smuzhiyun #endif 28*4882a593Smuzhiyun , &rstc->cr); 29*4882a593Smuzhiyun /* never reached */ 30*4882a593Smuzhiyun do { } while (1); 31*4882a593Smuzhiyun } 32