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
|
/*
* Based on MPC8560 ADS and arch/ppc tqm85xx ports
*
* Maintained by Kumar Gala (see MAINTAINERS for contact information)
*
* Copyright 2008 Freescale Semiconductor Inc.
*
* Copyright (c) 2005-2006 DENX Software Engineering
* Stefan Roese <sr@denx.de>
*
* Based on original work by
* Kumar Gala <kumar.gala@freescale.com>
* Copyright 2004 Freescale Semiconductor Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#include <linux/stddef.h>
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/kdev_t.h>
#include <linux/delay.h>
#include <linux/seq_file.h>
#include <linux/of_platform.h>
#include <asm/system.h>
#include <asm/time.h>
#include <asm/machdep.h>
#include <asm/pci-bridge.h>
#include <asm/mpic.h>
#include <asm/prom.h>
#include <mm/mmu_decl.h>
#include <asm/udbg.h>
#include <sysdev/fsl_soc.h>
#include <sysdev/fsl_pci.h>
#ifdef CONFIG_CPM2
#include <asm/cpm2.h>
#include <sysdev/cpm2_pic.h>
static void cpm2_cascade(unsigned int irq, struct irq_desc *desc)
{
int cascade_irq;
while ((cascade_irq = cpm2_get_irq()) >= 0)
generic_handle_irq(cascade_irq);
desc->chip->eoi(irq);
}
#endif /* CONFIG_CPM2 */
static void __init tqm85xx_pic_init(void)
{
struct mpic *mpic;
struct resource r;
struct device_node *np;
#ifdef CONFIG_CPM2
int irq;
#endif
np = of_find_node_by_type(NULL, "open-pic");
if (!np) {
printk(KERN_ERR "Could not find open-pic node\n");
return;
}
if (of_address_to_resource(np, 0, &r)) {
printk(KERN_ERR "Could not map mpic register space\n");
of_node_put(np);
return;
}
mpic = mpic_alloc(np, r.start,
MPIC_PRIMARY | MPIC_WANTS_RESET | MPIC_BIG_ENDIAN,
0, 256, " OpenPIC ");
BUG_ON(mpic == NULL);
of_node_put(np);
mpic_init(mpic);
#ifdef CONFIG_CPM2
/* Setup CPM2 PIC */
np = of_find_compatible_node(NULL, NULL, "fsl,cpm2-pic");
if (np == NULL) {
printk(KERN_ERR "PIC init: can not find fsl,cpm2-pic node\n");
return;
}
irq = irq_of_parse_and_map(np, 0);
if (irq == NO_IRQ) {
of_node_put(np);
printk(KERN_ERR "PIC init: got no IRQ for cpm cascade\n");
return;
}
cpm2_pic_init(np);
of_node_put(np);
set_irq_chained_handler(irq, cpm2_cascade);
#endif
}
/*
* Setup the architecture
*/
static void __init tqm85xx_setup_arch(void)
{
#ifdef CONFIG_PCI
struct device_node *np;
#endif
if (ppc_md.progress)
ppc_md.progress("tqm85xx_setup_arch()", 0);
#ifdef CONFIG_CPM2
cpm2_reset();
#endif
#ifdef CONFIG_PCI
for_each_node_by_type(np, "pci") {
if (of_device_is_compatible(np, "fsl,mpc8540-pci") ||
of_device_is_compatible(np, "fsl,mpc8548-pcie")) {
struct resource rsrc;
if (!of_address_to_resource(np, 0, &rsrc)) {
if ((rsrc.start & 0xfffff) == 0x8000)
fsl_add_bridge(np, 1);
else
fsl_add_bridge(np, 0);
}
}
}
#endif
}
static void tqm85xx_show_cpuinfo(struct seq_file *m)
{
uint pvid, svid, phid1;
pvid = mfspr(SPRN_PVR);
svid = mfspr(SPRN_SVR);
seq_printf(m, "Vendor\t\t: TQ Components\n");
seq_printf(m, "PVR\t\t: 0x%x\n", pvid);
seq_printf(m, "SVR\t\t: 0x%x\n", svid);
/* Display cpu Pll setting */
phid1 = mfspr(SPRN_HID1);
seq_printf(m, "PLL setting\t: 0x%x\n", ((phid1 >> 24) & 0x3f));
}
static struct of_device_id __initdata of_bus_ids[] = {
{ .compatible = "simple-bus", },
{},
};
static int __init declare_of_platform_devices(void)
{
of_platform_bus_probe(NULL, of_bus_ids, NULL);
return 0;
}
machine_device_initcall(tqm85xx, declare_of_platform_devices);
/*
* Called very early, device-tree isn't unflattened
*/
static int __init tqm85xx_probe(void)
{
unsigned long root = of_get_flat_dt_root();
if ((of_flat_dt_is_compatible(root, "tqc,tqm8540")) ||
(of_flat_dt_is_compatible(root, "tqc,tqm8541")) ||
(of_flat_dt_is_compatible(root, "tqc,tqm8548")) ||
(of_flat_dt_is_compatible(root, "tqc,tqm8555")) ||
(of_flat_dt_is_compatible(root, "tqc,tqm8560")))
return 1;
return 0;
}
define_machine(tqm85xx) {
.name = "TQM85xx",
.probe = tqm85xx_probe,
.setup_arch = tqm85xx_setup_arch,
.init_IRQ = tqm85xx_pic_init,
.show_cpuinfo = tqm85xx_show_cpuinfo,
.get_irq = mpic_get_irq,
.restart = fsl_rstcr_restart,
.calibrate_decr = generic_calibrate_decr,
.progress = udbg_progress,
};
|
