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
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
|
/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr>
*/
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/delay.h>
#include <linux/bootmem.h>
#include <linux/ioport.h>
#include <linux/pm.h>
#include <asm/bootinfo.h>
#include <asm/time.h>
#include <asm/reboot.h>
#include <asm/cacheflush.h>
#include <bcm63xx_board.h>
#include <bcm63xx_cpu.h>
#include <bcm63xx_regs.h>
#include <bcm63xx_io.h>
void bcm63xx_machine_halt(void)
{
printk(KERN_INFO "System halted\n");
while (1);
}
static void bcm6348_a1_reboot(void)
{
u32 reg;
/* soft reset all blocks */
printk(KERN_INFO "soft-reseting all blocks ...\n");
reg = bcm_perf_readl(PERF_SOFTRESET_REG);
reg &= ~SOFTRESET_6348_ALL;
bcm_perf_writel(reg, PERF_SOFTRESET_REG);
mdelay(10);
reg = bcm_perf_readl(PERF_SOFTRESET_REG);
reg |= SOFTRESET_6348_ALL;
bcm_perf_writel(reg, PERF_SOFTRESET_REG);
mdelay(10);
/* Jump to the power on address. */
printk(KERN_INFO "jumping to reset vector.\n");
/* set high vectors (base at 0xbfc00000 */
set_c0_status(ST0_BEV | ST0_ERL);
/* run uncached in kseg0 */
change_c0_config(CONF_CM_CMASK, CONF_CM_UNCACHED);
__flush_cache_all();
/* remove all wired TLB entries */
write_c0_wired(0);
__asm__ __volatile__(
"jr\t%0"
:
: "r" (0xbfc00000));
while (1);
}
void bcm63xx_machine_reboot(void)
{
u32 reg;
/* mask and clear all external irq */
reg = bcm_perf_readl(PERF_EXTIRQ_CFG_REG);
reg &= ~EXTIRQ_CFG_MASK_ALL;
reg |= EXTIRQ_CFG_CLEAR_ALL;
bcm_perf_writel(reg, PERF_EXTIRQ_CFG_REG);
if (BCMCPU_IS_6348() && (bcm63xx_get_cpu_rev() == 0xa1))
bcm6348_a1_reboot();
printk(KERN_INFO "triggering watchdog soft-reset...\n");
bcm_perf_writel(SYS_PLL_SOFT_RESET, PERF_SYS_PLL_CTL_REG);
while (1);
}
static void __bcm63xx_machine_reboot(char *p)
{
bcm63xx_machine_reboot();
}
/*
* return system type in /proc/cpuinfo
*/
const char *get_system_type(void)
{
static char buf[128];
snprintf(buf, sizeof (buf), "bcm63xx/%s (0x%04x/0x%04X)",
board_get_name(),
bcm63xx_get_cpu_id(), bcm63xx_get_cpu_rev());
return buf;
}
void __init plat_time_init(void)
{
mips_hpt_frequency = bcm63xx_get_cpu_freq() / 2;
}
void __init plat_mem_setup(void)
{
add_memory_region(0, bcm63xx_get_memory_size(), BOOT_MEM_RAM);
_machine_halt = bcm63xx_machine_halt;
_machine_restart = __bcm63xx_machine_reboot;
pm_power_off = bcm63xx_machine_halt;
set_io_port_base(0);
ioport_resource.start = 0;
ioport_resource.end = ~0;
board_setup();
}
int __init bcm63xx_register_devices(void)
{
return board_register_devices();
}
arch_initcall(bcm63xx_register_devices);
|
