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
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
|
/*
* Board setup routines for the Buffalo Linkstation / Kurobox Platform.
*
* Copyright (C) 2006 G. Liakhovetski (g.liakhovetski@gmx.de)
*
* Based on sandpoint.c by Mark A. Greer
*
* This file is licensed under the terms of the GNU General Public License
* version 2. This program is licensed "as is" without any warranty of
* any kind, whether express or implied.
*/
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/initrd.h>
#include <linux/mtd/physmap.h>
#include <asm/time.h>
#include <asm/prom.h>
#include <asm/mpic.h>
#include <asm/mpc10x.h>
#include <asm/pci-bridge.h>
static struct mtd_partition linkstation_physmap_partitions[] = {
{
.name = "mtd_firmimg",
.offset = 0x000000,
.size = 0x300000,
},
{
.name = "mtd_bootcode",
.offset = 0x300000,
.size = 0x070000,
},
{
.name = "mtd_status",
.offset = 0x370000,
.size = 0x010000,
},
{
.name = "mtd_conf",
.offset = 0x380000,
.size = 0x080000,
},
{
.name = "mtd_allflash",
.offset = 0x000000,
.size = 0x400000,
},
{
.name = "mtd_data",
.offset = 0x310000,
.size = 0x0f0000,
},
};
static int __init linkstation_add_bridge(struct device_node *dev)
{
#ifdef CONFIG_PCI
int len;
struct pci_controller *hose;
const int *bus_range;
printk("Adding PCI host bridge %s\n", dev->full_name);
bus_range = of_get_property(dev, "bus-range", &len);
if (bus_range == NULL || len < 2 * sizeof(int))
printk(KERN_WARNING "Can't get bus-range for %s, assume"
" bus 0\n", dev->full_name);
hose = pcibios_alloc_controller(dev);
if (hose == NULL)
return -ENOMEM;
hose->first_busno = bus_range ? bus_range[0] : 0;
hose->last_busno = bus_range ? bus_range[1] : 0xff;
setup_indirect_pci(hose, 0xfec00000, 0xfee00000, 0);
/* Interpret the "ranges" property */
/* This also maps the I/O region and sets isa_io/mem_base */
pci_process_bridge_OF_ranges(hose, dev, 1);
#endif
return 0;
}
static void __init linkstation_setup_arch(void)
{
struct device_node *np;
#ifdef CONFIG_MTD_PHYSMAP
physmap_set_partitions(linkstation_physmap_partitions,
ARRAY_SIZE(linkstation_physmap_partitions));
#endif
/* Lookup PCI host bridges */
for (np = NULL; (np = of_find_node_by_type(np, "pci")) != NULL;)
linkstation_add_bridge(np);
printk(KERN_INFO "BUFFALO Network Attached Storage Series\n");
printk(KERN_INFO "(C) 2002-2005 BUFFALO INC.\n");
}
/*
* Interrupt setup and service. Interrupts on the linkstation come
* from the four PCI slots plus onboard 8241 devices: I2C, DUART.
*/
static void __init linkstation_init_IRQ(void)
{
struct mpic *mpic;
struct device_node *dnp;
const u32 *prop;
int size;
phys_addr_t paddr;
dnp = of_find_node_by_type(NULL, "open-pic");
if (dnp == NULL)
return;
prop = of_get_property(dnp, "reg", &size);
paddr = (phys_addr_t)of_translate_address(dnp, prop);
mpic = mpic_alloc(dnp, paddr, MPIC_PRIMARY | MPIC_WANTS_RESET, 4, 32, " EPIC ");
BUG_ON(mpic == NULL);
/* PCI IRQs */
mpic_assign_isu(mpic, 0, paddr + 0x10200);
/* I2C */
mpic_assign_isu(mpic, 1, paddr + 0x11000);
/* ttyS0, ttyS1 */
mpic_assign_isu(mpic, 2, paddr + 0x11100);
mpic_init(mpic);
}
extern void avr_uart_configure(void);
extern void avr_uart_send(const char);
static void linkstation_restart(char *cmd)
{
local_irq_disable();
/* Reset system via AVR */
avr_uart_configure();
/* Send reboot command */
avr_uart_send('C');
for(;;) /* Spin until reset happens */
avr_uart_send('G'); /* "kick" */
}
static void linkstation_power_off(void)
{
local_irq_disable();
/* Power down system via AVR */
avr_uart_configure();
/* send shutdown command */
avr_uart_send('E');
for(;;) /* Spin until power-off happens */
avr_uart_send('G'); /* "kick" */
/* NOTREACHED */
}
static void linkstation_halt(void)
{
linkstation_power_off();
/* NOTREACHED */
}
static void linkstation_show_cpuinfo(struct seq_file *m)
{
seq_printf(m, "vendor\t\t: Buffalo Technology\n");
seq_printf(m, "machine\t\t: Linkstation I/Kurobox(HG)\n");
}
static int __init linkstation_probe(void)
{
unsigned long root;
root = of_get_flat_dt_root();
if (!of_flat_dt_is_compatible(root, "linkstation"))
return 0;
return 1;
}
define_machine(linkstation){
.name = "Buffalo Linkstation",
.probe = linkstation_probe,
.setup_arch = linkstation_setup_arch,
.init_IRQ = linkstation_init_IRQ,
.show_cpuinfo = linkstation_show_cpuinfo,
.get_irq = mpic_get_irq,
.restart = linkstation_restart,
.power_off = linkstation_power_off,
.halt = linkstation_halt,
.calibrate_decr = generic_calibrate_decr,
};
|
