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