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
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
|
/*
* Board setup routines for the GEFanuc C2K board
*
* Author: Remi Machet <rmachet@slac.stanford.edu>
*
* Originated from prpmc2800.c
*
* 2008 (c) Stanford University
* 2007 (c) MontaVista, Software, Inc.
*
* 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.
*/
#include <linux/stddef.h>
#include <linux/kernel.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/seq_file.h>
#include <linux/time.h>
#include <linux/of.h>
#include <linux/kexec.h>
#include <asm/machdep.h>
#include <asm/prom.h>
#include <asm/system.h>
#include <asm/time.h>
#include <mm/mmu_decl.h>
#include <sysdev/mv64x60.h>
#define MV64x60_MPP_CNTL_0 0x0000
#define MV64x60_MPP_CNTL_2 0x0008
#define MV64x60_GPP_IO_CNTL 0x0000
#define MV64x60_GPP_LEVEL_CNTL 0x0010
#define MV64x60_GPP_VALUE_SET 0x0018
static void __iomem *mv64x60_mpp_reg_base;
static void __iomem *mv64x60_gpp_reg_base;
static void __init c2k_setup_arch(void)
{
struct device_node *np;
phys_addr_t paddr;
const unsigned int *reg;
/*
* ioremap mpp and gpp registers in case they are later
* needed by c2k_reset_board().
*/
np = of_find_compatible_node(NULL, NULL, "marvell,mv64360-mpp");
reg = of_get_property(np, "reg", NULL);
paddr = of_translate_address(np, reg);
of_node_put(np);
mv64x60_mpp_reg_base = ioremap(paddr, reg[1]);
np = of_find_compatible_node(NULL, NULL, "marvell,mv64360-gpp");
reg = of_get_property(np, "reg", NULL);
paddr = of_translate_address(np, reg);
of_node_put(np);
mv64x60_gpp_reg_base = ioremap(paddr, reg[1]);
#ifdef CONFIG_PCI
mv64x60_pci_init();
#endif
}
static void c2k_reset_board(void)
{
u32 temp;
local_irq_disable();
temp = in_le32(mv64x60_mpp_reg_base + MV64x60_MPP_CNTL_0);
temp &= 0xFFFF0FFF;
out_le32(mv64x60_mpp_reg_base + MV64x60_MPP_CNTL_0, temp);
temp = in_le32(mv64x60_gpp_reg_base + MV64x60_GPP_LEVEL_CNTL);
temp |= 0x00000004;
out_le32(mv64x60_gpp_reg_base + MV64x60_GPP_LEVEL_CNTL, temp);
temp = in_le32(mv64x60_gpp_reg_base + MV64x60_GPP_IO_CNTL);
temp |= 0x00000004;
out_le32(mv64x60_gpp_reg_base + MV64x60_GPP_IO_CNTL, temp);
temp = in_le32(mv64x60_mpp_reg_base + MV64x60_MPP_CNTL_2);
temp &= 0xFFFF0FFF;
out_le32(mv64x60_mpp_reg_base + MV64x60_MPP_CNTL_2, temp);
temp = in_le32(mv64x60_gpp_reg_base + MV64x60_GPP_LEVEL_CNTL);
temp |= 0x00080000;
out_le32(mv64x60_gpp_reg_base + MV64x60_GPP_LEVEL_CNTL, temp);
temp = in_le32(mv64x60_gpp_reg_base + MV64x60_GPP_IO_CNTL);
temp |= 0x00080000;
out_le32(mv64x60_gpp_reg_base + MV64x60_GPP_IO_CNTL, temp);
out_le32(mv64x60_gpp_reg_base + MV64x60_GPP_VALUE_SET, 0x00080004);
}
static void c2k_restart(char *cmd)
{
c2k_reset_board();
msleep(100);
panic("restart failed\n");
}
#ifdef CONFIG_NOT_COHERENT_CACHE
#define COHERENCY_SETTING "off"
#else
#define COHERENCY_SETTING "on"
#endif
void c2k_show_cpuinfo(struct seq_file *m)
{
uint memsize = total_memory;
seq_printf(m, "Vendor\t\t: GEFanuc\n");
seq_printf(m, "Memory\t\t: %d MB\n", memsize / (1024 * 1024));
seq_printf(m, "coherency\t: %s\n", COHERENCY_SETTING);
}
/*
* Called very early, device-tree isn't unflattened
*/
static int __init c2k_probe(void)
{
unsigned long root = of_get_flat_dt_root();
if (!of_flat_dt_is_compatible(root, "GEFanuc,C2K"))
return 0;
printk(KERN_INFO "Detected a GEFanuc C2K board\n");
_set_L2CR(0);
_set_L2CR(L2CR_L2E | L2CR_L2PE | L2CR_L2I);
return 1;
}
define_machine(c2k) {
.name = "C2K",
.probe = c2k_probe,
.setup_arch = c2k_setup_arch,
.init_early = mv64x60_init_early,
.show_cpuinfo = c2k_show_cpuinfo,
.init_IRQ = mv64x60_init_irq,
.get_irq = mv64x60_get_irq,
.restart = c2k_restart,
.calibrate_decr = generic_calibrate_decr,
#ifdef CONFIG_KEXEC
.machine_kexec = default_machine_kexec,
.machine_kexec_prepare = default_machine_kexec_prepare,
.machine_crash_shutdown = default_machine_crash_shutdown,
#endif
};
|
