]> Git Repo - J-linux.git/blob - arch/mips/ralink/reset.c
Merge tag 'kbuild-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy...
[J-linux.git] / arch / mips / ralink / reset.c
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  *
4  * Copyright (C) 2008-2009 Gabor Juhos <[email protected]>
5  * Copyright (C) 2008 Imre Kaloz <[email protected]>
6  * Copyright (C) 2013 John Crispin <[email protected]>
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);
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