1 /* 2 * Copyright 2013 Broadcom Corporation. 3 * 4 * SPDX-License-Identifier: GPL-2.0+ 5 */ 6 7 #include <common.h> 8 #include <asm/io.h> 9 #include <asm/arch/sysmap.h> 10 11 #define EN_MASK 0x08000000 /* Enable timer */ 12 #define SRSTEN_MASK 0x04000000 /* Enable soft reset */ 13 #define CLKS_SHIFT 20 /* Clock period shift */ 14 #define LD_SHIFT 0 /* Reload value shift */ 15 16 void reset_cpu(ulong ignored) 17 { 18 /* 19 * Set WD enable, RST enable, 20 * 3.9 msec clock period (8), reload value (8*3.9ms) 21 */ 22 u32 reg = EN_MASK + SRSTEN_MASK + (8 << CLKS_SHIFT) + (8 << LD_SHIFT); 23 writel(reg, SECWD2_BASE_ADDR); 24 25 while (1) 26 ; /* loop forever till reset */ 27 } 28