summaryrefslogtreecommitdiffstats
path: root/arch/powerpc/platforms/ps3/setup.c
blob: d8b5cadbe80e147cdae164e097f8d705947b8c88 (plain)
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
/*
 *  PS3 platform setup routines.
 *
 *  Copyright (C) 2006 Sony Computer Entertainment Inc.
 *  Copyright 2006 Sony Corp.
 *
 *  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; version 2 of the License.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include <linux/kernel.h>
#include <linux/delay.h>
#include <linux/fs.h>
#include <linux/root_dev.h>
#include <linux/console.h>
#include <linux/kexec.h>

#include <asm/machdep.h>
#include <asm/firmware.h>
#include <asm/time.h>
#include <asm/iommu.h>
#include <asm/udbg.h>
#include <asm/prom.h>
#include <asm/lv1call.h>

#include "platform.h"

#if defined(DEBUG)
#define DBG(fmt...) udbg_printf(fmt)
#else
#define DBG(fmt...) do{if(0)printk(fmt);}while(0)
#endif

static void ps3_show_cpuinfo(struct seq_file *m)
{
	seq_printf(m, "machine\t\t: %s\n", ppc_md.name);
}

static void ps3_power_save(void)
{
	/*
	 * lv1_pause() puts the PPE thread into inactive state until an
	 * irq on an unmasked plug exists. MSR[EE] has no effect.
	 * flags: 0 = wake on DEC interrupt, 1 = ignore DEC interrupt.
	 */

	lv1_pause(0);
}

static void ps3_panic(char *str)
{
	DBG("%s:%d %s\n", __func__, __LINE__, str);

#ifdef CONFIG_SMP
	smp_send_stop();
#endif
	printk("\n");
	printk("   System does not reboot automatically.\n");
	printk("   Please press POWER button.\n");
	printk("\n");

	for (;;) ;
}

static void __init ps3_setup_arch(void)
{
	DBG(" -> %s:%d\n", __func__, __LINE__);

	ps3_spu_set_platform();
	ps3_map_htab();

#ifdef CONFIG_SMP
	smp_init_ps3();
#endif

#ifdef CONFIG_DUMMY_CONSOLE
	conswitchp = &dummy_con;
#endif

	ppc_md.power_save = ps3_power_save;

	DBG(" <- %s:%d\n", __func__, __LINE__);
}

static void __init ps3_progress(char *s, unsigned short hex)
{
	printk("*** %04x : %s\n", hex, s ? s : "");
}

static int __init ps3_probe(void)
{
	unsigned long htab_size;
	unsigned long dt_root;

	DBG(" -> %s:%d\n", __func__, __LINE__);

	dt_root = of_get_flat_dt_root();
	if (!of_flat_dt_is_compatible(dt_root, "PS3"))
		return 0;

	powerpc_firmware_features |= FW_FEATURE_PS3_POSSIBLE;

	ps3_os_area_init();
	ps3_mm_init();
	ps3_mm_vas_create(&htab_size);
	ps3_hpte_init(htab_size);

	DBG(" <- %s:%d\n", __func__, __LINE__);
	return 1;
}

#if defined(CONFIG_KEXEC)
static void ps3_kexec_cpu_down(int crash_shutdown, int secondary)
{
	DBG(" -> %s:%d\n", __func__, __LINE__);

	if (secondary) {
		int cpu;
		for_each_online_cpu(cpu)
			if (cpu)
				ps3_smp_cleanup_cpu(cpu);
	} else
		ps3_smp_cleanup_cpu(0);

	DBG(" <- %s:%d\n", __func__, __LINE__);
}

static void ps3_machine_kexec(struct kimage *image)
{
	unsigned long ppe_id;

	DBG(" -> %s:%d\n", __func__, __LINE__);

	lv1_get_logical_ppe_id(&ppe_id);
	lv1_configure_irq_state_bitmap(ppe_id, 0, 0);
	ps3_mm_shutdown();
	ps3_mm_vas_destroy();

	default_machine_kexec(image);

	DBG(" <- %s:%d\n", __func__, __LINE__);
}
#endif

define_machine(ps3) {
	.name				= "PS3",
	.probe				= ps3_probe,
	.setup_arch			= ps3_setup_arch,
	.show_cpuinfo			= ps3_show_cpuinfo,
	.init_IRQ			= ps3_init_IRQ,
	.panic				= ps3_panic,
	.get_boot_time			= ps3_get_boot_time,
	.set_rtc_time			= ps3_set_rtc_time,
	.get_rtc_time			= ps3_get_rtc_time,
	.calibrate_decr			= ps3_calibrate_decr,
	.progress			= ps3_progress,
#if defined(CONFIG_KEXEC)
	.kexec_cpu_down			= ps3_kexec_cpu_down,
	.machine_kexec			= ps3_machine_kexec,
	.machine_kexec_prepare		= default_machine_kexec_prepare,
	.machine_crash_shutdown		= default_machine_crash_shutdown,
#endif
};