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