1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 *
4 * Copyright (C) 2008-2009 Gabor Juhos <juhosg@openwrt.org>
5 * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
6 * Copyright (C) 2013 John Crispin <john@phrozen.org>
7 */
8
9 #include <linux/pm.h>
10 #include <linux/io.h>
11 #include <linux/of.h>
12 #include <linux/delay.h>
13
14 #include <asm/reboot.h>
15
16 #include <asm/mach-ralink/ralink_regs.h>
17
18 /* Reset Control */
19 #define SYSC_REG_RESET_CTRL 0x034
20
21 #define RSTCTL_RESET_PCI BIT(26)
22 #define RSTCTL_RESET_SYSTEM BIT(0)
23
24 static void ralink_restart(char *command)
25 {
26 if (IS_ENABLED(CONFIG_PCI)) {
27 rt_sysc_m32(0, RSTCTL_RESET_PCI, SYSC_REG_RESET_CTRL);
28 mdelay(50);
29 }
30
31 local_irq_disable();
32 rt_sysc_w32(RSTCTL_RESET_SYSTEM, SYSC_REG_RESET_CTRL);
33 unreachable();
34 }
35
36 static int __init mips_reboot_setup(void)
37 {
38 _machine_restart = ralink_restart;
39
40 return 0;
41 }
42
43 arch_initcall(mips_reboot_setup);
44
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