1 /* 2 * Copyright 2017 CS Systemes d'Information 3 * 4 * SPDX-License-Identifier: GPL-2.0+ 5 */ 6 7 #include <common.h> 8 #include <mpc8xx.h> 9 #include <asm/cpm_8xx.h> 10 #include <asm/io.h> 11 12 DECLARE_GLOBAL_DATA_PTR; 13 14 void hw_watchdog_reset(void) 15 { 16 immap_t __iomem *immap = (immap_t __iomem *)CONFIG_SYS_IMMR; 17 18 out_be16(&immap->im_siu_conf.sc_swsr, 0x556c); /* write magic1 */ 19 out_be16(&immap->im_siu_conf.sc_swsr, 0xaa39); /* write magic2 */ 20 } 21 22