blob: 5551875da6294ca8ea149a80a055de743e1ad42e (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
|
/*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
*
* Copyright (C) 2010 John Crispin <blogic@openwrt.org>
*/
#include <linux/init.h>
#include <linux/io.h>
#include <linux/ioport.h>
#include <linux/pm.h>
#include <linux/module.h>
#include <asm/reboot.h>
#include <lantiq_soc.h>
#include "../machtypes.h"
#include <base_reg.h>
#include <sys1_reg.h>
#include <boot_reg.h>
#include <ebu_reg.h>
static struct svip_reg_sys1 *const sys1 = (struct svip_reg_sys1 *)LTQ_SYS1_BASE;
static struct svip_reg_ebu *const ebu = (struct svip_reg_ebu *)LTQ_EBU_BASE;
#define CPLD_CMDREG3 ((volatile unsigned char*)(KSEG1 + 0x120000f3))
extern void switchip_reset(void);
static void ltq_machine_restart(char *command)
{
printk(KERN_NOTICE "System restart\n");
local_irq_disable();
if (mips_machtype == LANTIQ_MACH_EASY33016 ||
mips_machtype == LANTIQ_MACH_EASY336) {
/* We just use the CPLD function to reset the entire system as a
workaround for the switch reset problem */
local_irq_disable();
ebu_w32(0x120000f1, addr_sel_2);
ebu_w32(0x404027ff, con_2);
if (mips_machtype == LANTIQ_MACH_EASY336)
/* set bit 0 to reset SVIP */
*CPLD_CMDREG3 = (1<<0);
else
/* set bit 7 to reset SVIP, set bit 3 to reset xT */
*CPLD_CMDREG3 = (1<<7) | (1<<3);
} else {
*LTQ_BOOT_RVEC(0) = 0;
/* reset all except PER, SUBSYS and CPU0 */
sys1_w32(0x00043F3E, rreqr);
/* release WDT0 reset */
sys1_w32(0x00000100, rrlsr);
/* restore reset value for clock enables */
sys1_w32(~0x0c000040, clkclr);
/* reset SUBSYS (incl. DDR2) and CPU0 */
sys1_w32(0x00030001, rbtr);
}
for (;;)
;
}
static void ltq_machine_halt(void)
{
printk(KERN_NOTICE "System halted.\n");
local_irq_disable();
for (;;)
;
}
static void ltq_machine_power_off(void)
{
printk(KERN_NOTICE "Please turn off the power now.\n");
local_irq_disable();
for (;;)
;
}
/* This function is used by the watchdog driver */
int ltq_reset_cause(void)
{
return 0;
}
EXPORT_SYMBOL_GPL(ltq_reset_cause);
static int __init mips_reboot_setup(void)
{
_machine_restart = ltq_machine_restart;
_machine_halt = ltq_machine_halt;
pm_power_off = ltq_machine_power_off;
return 0;
}
arch_initcall(mips_reboot_setup);
|
