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
|
/*
* SBC8641D board specific routines
*
* Copyright 2008 Wind River Systems Inc.
*
* By Paul Gortmaker (see MAINTAINERS for contact information)
*
* Based largely on the 8641 HPCN support by 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/mpc86xx.h>
#include <asm/prom.h>
#include <mm/mmu_decl.h>
#include <asm/udbg.h>
#include <asm/mpic.h>
#include <sysdev/fsl_pci.h>
#include <sysdev/fsl_soc.h>
#include "mpc86xx.h"
static void __init
sbc8641_setup_arch(void)
{
#ifdef CONFIG_PCI
struct device_node *np;
#endif
if (ppc_md.progress)
ppc_md.progress("sbc8641_setup_arch()", 0);
#ifdef CONFIG_PCI
for_each_compatible_node(np, "pci", "fsl,mpc8641-pcie")
fsl_add_bridge(np, 0);
#endif
printk("SBC8641 board from Wind River\n");
#ifdef CONFIG_SMP
mpc86xx_smp_init();
#endif
}
static void
sbc8641_show_cpuinfo(struct seq_file *m)
{
uint svid = mfspr(SPRN_SVR);
seq_printf(m, "Vendor\t\t: Wind River Systems\n");
seq_printf(m, "SVR\t\t: 0x%x\n", svid);
}
/*
* Called very early, device-tree isn't unflattened
*/
static int __init sbc8641_probe(void)
{
unsigned long root = of_get_flat_dt_root();
if (of_flat_dt_is_compatible(root, "wind,sbc8641"))
return 1; /* Looks good */
return 0;
}
static long __init
mpc86xx_time_init(void)
{
unsigned int temp;
/* Set the time base to zero */
mtspr(SPRN_TBWL, 0);
mtspr(SPRN_TBWU, 0);
temp = mfspr(SPRN_HID0);
temp |= HID0_TBEN;
mtspr(SPRN_HID0, temp);
asm volatile("isync");
return 0;
}
static __initdata struct of_device_id of_bus_ids[] = {
{ .compatible = "simple-bus", },
{ .compatible = "gianfar", },
{},
};
static int __init declare_of_platform_devices(void)
{
of_platform_bus_probe(NULL, of_bus_ids, NULL);
return 0;
}
machine_device_initcall(sbc8641, declare_of_platform_devices);
define_machine(sbc8641) {
.name = "SBC8641D",
.probe = sbc8641_probe,
.setup_arch = sbc8641_setup_arch,
.init_IRQ = mpc86xx_init_irq,
.show_cpuinfo = sbc8641_show_cpuinfo,
.get_irq = mpic_get_irq,
.restart = fsl_rstcr_restart,
.time_init = mpc86xx_time_init,
.calibrate_decr = generic_calibrate_decr,
.progress = udbg_progress,
#ifdef CONFIG_PCI
.pcibios_fixup_bus = fsl_pcibios_fixup_bus,
#endif
};
|
