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1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright (C) 2012-2014 Panasonic Corporation
4  * Copyright (C) 2015-2016 Socionext Inc.
5  *   Author: Masahiro Yamada <yamada.masahiro@socionext.com>
6  */
7 
8 #include <common.h>
9 #include <linux/io.h>
10 #include <asm/secure.h>
11 
12 #include "sc-regs.h"
13 
14 /* If PSCI is enabled, this is used for SYSTEM_RESET function */
15 #ifdef CONFIG_ARMV7_PSCI
16 #define __SECURE	__secure
17 #else
18 #define __SECURE
19 #endif
20 
reset_cpu(unsigned long ignored)21 void __SECURE reset_cpu(unsigned long ignored)
22 {
23 	u32 tmp;
24 
25 	writel(5, sc_base + SC_IRQTIMSET); /* default value */
26 
27 	tmp  = readl(sc_base + SC_SLFRSTSEL);
28 	tmp &= ~0x3; /* mask [1:0] */
29 	tmp |= 0x0;  /* XRST reboot */
30 	writel(tmp, sc_base + SC_SLFRSTSEL);
31 
32 	tmp = readl(sc_base + SC_SLFRSTCTL);
33 	tmp |= 0x1;
34 	writel(tmp, sc_base + SC_SLFRSTCTL);
35 }
36