Merge git://git.kernel.org/pub/scm/linux/kernel/git/jk/spufs
[linux-2.6] / arch / powerpc / platforms / cell / celleb_setup.c
1 /*
2  * Celleb setup code
3  *
4  * (C) Copyright 2006-2007 TOSHIBA CORPORATION
5  *
6  * This code is based on arch/powerpc/platforms/cell/setup.c:
7  *  Copyright (C) 1995  Linus Torvalds
8  *  Adapted from 'alpha' version by Gary Thomas
9  *  Modified by Cort Dougan (cort@cs.nmt.edu)
10  *  Modified by PPC64 Team, IBM Corp
11  *  Modified by Cell Team, IBM Deutschland Entwicklung GmbH
12  *
13  * This program is free software; you can redistribute it and/or modify
14  * it under the terms of the GNU General Public License as published by
15  * the Free Software Foundation; either version 2 of the License, or
16  * (at your option) any later version.
17  *
18  * This program is distributed in the hope that it will be useful,
19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
21  * GNU General Public License for more details.
22  *
23  * You should have received a copy of the GNU General Public License along
24  * with this program; if not, write to the Free Software Foundation, Inc.,
25  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
26  */
27
28 #undef DEBUG
29
30 #include <linux/cpu.h>
31 #include <linux/sched.h>
32 #include <linux/kernel.h>
33 #include <linux/mm.h>
34 #include <linux/stddef.h>
35 #include <linux/unistd.h>
36 #include <linux/reboot.h>
37 #include <linux/init.h>
38 #include <linux/delay.h>
39 #include <linux/irq.h>
40 #include <linux/seq_file.h>
41 #include <linux/root_dev.h>
42 #include <linux/console.h>
43 #include <linux/of_platform.h>
44
45 #include <asm/mmu.h>
46 #include <asm/processor.h>
47 #include <asm/io.h>
48 #include <asm/kexec.h>
49 #include <asm/prom.h>
50 #include <asm/machdep.h>
51 #include <asm/cputable.h>
52 #include <asm/irq.h>
53 #include <asm/time.h>
54 #include <asm/spu_priv1.h>
55 #include <asm/firmware.h>
56 #include <asm/rtas.h>
57 #include <asm/cell-regs.h>
58
59 #include "beat_interrupt.h"
60 #include "beat_wrapper.h"
61 #include "beat.h"
62 #include "celleb_pci.h"
63 #include "interrupt.h"
64 #include "pervasive.h"
65 #include "ras.h"
66
67 static char celleb_machine_type[128] = "Celleb";
68
69 static void celleb_show_cpuinfo(struct seq_file *m)
70 {
71         struct device_node *root;
72         const char *model = "";
73
74         root = of_find_node_by_path("/");
75         if (root)
76                 model = of_get_property(root, "model", NULL);
77         /* using "CHRP" is to trick anaconda into installing FCx into Celleb */
78         seq_printf(m, "machine\t\t: %s %s\n", celleb_machine_type, model);
79         of_node_put(root);
80 }
81
82 static int __init celleb_machine_type_hack(char *ptr)
83 {
84         strncpy(celleb_machine_type, ptr, sizeof(celleb_machine_type));
85         celleb_machine_type[sizeof(celleb_machine_type)-1] = 0;
86         return 0;
87 }
88
89 __setup("celleb_machine_type_hack=", celleb_machine_type_hack);
90
91 static void celleb_progress(char *s, unsigned short hex)
92 {
93         printk("*** %04x : %s\n", hex, s ? s : "");
94 }
95
96 static void __init celleb_setup_arch_common(void)
97 {
98         /* init to some ~sane value until calibrate_delay() runs */
99         loops_per_jiffy = 50000000;
100
101 #ifdef CONFIG_DUMMY_CONSOLE
102         conswitchp = &dummy_con;
103 #endif
104 }
105
106 static struct of_device_id celleb_bus_ids[] __initdata = {
107         { .type = "scc", },
108         { .type = "ioif", },    /* old style */
109         {},
110 };
111
112 static int __init celleb_publish_devices(void)
113 {
114         /* Publish OF platform devices for southbridge IOs */
115         of_platform_bus_probe(NULL, celleb_bus_ids, NULL);
116
117         return 0;
118 }
119 machine_device_initcall(celleb_beat, celleb_publish_devices);
120 machine_device_initcall(celleb_native, celleb_publish_devices);
121
122
123 /*
124  * functions for Celleb-Beat
125  */
126 static void __init celleb_setup_arch_beat(void)
127 {
128 #ifdef CONFIG_SPU_BASE
129         spu_priv1_ops           = &spu_priv1_beat_ops;
130         spu_management_ops      = &spu_management_of_ops;
131 #endif
132
133 #ifdef CONFIG_SMP
134         smp_init_celleb();
135 #endif
136
137         celleb_setup_arch_common();
138 }
139
140 static int __init celleb_probe_beat(void)
141 {
142         unsigned long root = of_get_flat_dt_root();
143
144         if (!of_flat_dt_is_compatible(root, "Beat"))
145                 return 0;
146
147         powerpc_firmware_features |= FW_FEATURE_CELLEB_ALWAYS
148                 | FW_FEATURE_BEAT | FW_FEATURE_LPAR;
149         hpte_init_beat_v3();
150
151         return 1;
152 }
153
154
155 /*
156  * functions for Celleb-native
157  */
158 static void __init celleb_init_IRQ_native(void)
159 {
160         iic_init_IRQ();
161         spider_init_IRQ();
162 }
163
164 static void __init celleb_setup_arch_native(void)
165 {
166 #ifdef CONFIG_SPU_BASE
167         spu_priv1_ops           = &spu_priv1_mmio_ops;
168         spu_management_ops      = &spu_management_of_ops;
169 #endif
170
171         cbe_regs_init();
172
173 #ifdef CONFIG_CBE_RAS
174         cbe_ras_init();
175 #endif
176
177 #ifdef CONFIG_SMP
178         smp_init_cell();
179 #endif
180
181         cbe_pervasive_init();
182
183         /* XXX: nvram initialization should be added */
184
185         celleb_setup_arch_common();
186 }
187
188 static int __init celleb_probe_native(void)
189 {
190         unsigned long root = of_get_flat_dt_root();
191
192         if (of_flat_dt_is_compatible(root, "Beat") ||
193             !of_flat_dt_is_compatible(root, "TOSHIBA,Celleb"))
194                 return 0;
195
196         powerpc_firmware_features |= FW_FEATURE_CELLEB_ALWAYS;
197         hpte_init_native();
198
199         return 1;
200 }
201
202
203 /*
204  * machine definitions
205  */
206 define_machine(celleb_beat) {
207         .name                   = "Cell Reference Set (Beat)",
208         .probe                  = celleb_probe_beat,
209         .setup_arch             = celleb_setup_arch_beat,
210         .show_cpuinfo           = celleb_show_cpuinfo,
211         .restart                = beat_restart,
212         .power_off              = beat_power_off,
213         .halt                   = beat_halt,
214         .get_rtc_time           = beat_get_rtc_time,
215         .set_rtc_time           = beat_set_rtc_time,
216         .calibrate_decr         = generic_calibrate_decr,
217         .progress               = celleb_progress,
218         .power_save             = beat_power_save,
219         .nvram_size             = beat_nvram_get_size,
220         .nvram_read             = beat_nvram_read,
221         .nvram_write            = beat_nvram_write,
222         .set_dabr               = beat_set_xdabr,
223         .init_IRQ               = beatic_init_IRQ,
224         .get_irq                = beatic_get_irq,
225         .pci_probe_mode         = celleb_pci_probe_mode,
226         .pci_setup_phb          = celleb_setup_phb,
227 #ifdef CONFIG_KEXEC
228         .kexec_cpu_down         = beat_kexec_cpu_down,
229         .machine_kexec          = default_machine_kexec,
230         .machine_kexec_prepare  = default_machine_kexec_prepare,
231         .machine_crash_shutdown = default_machine_crash_shutdown,
232 #endif
233 };
234
235 define_machine(celleb_native) {
236         .name                   = "Cell Reference Set (native)",
237         .probe                  = celleb_probe_native,
238         .setup_arch             = celleb_setup_arch_native,
239         .show_cpuinfo           = celleb_show_cpuinfo,
240         .restart                = rtas_restart,
241         .power_off              = rtas_power_off,
242         .halt                   = rtas_halt,
243         .get_boot_time          = rtas_get_boot_time,
244         .get_rtc_time           = rtas_get_rtc_time,
245         .set_rtc_time           = rtas_set_rtc_time,
246         .calibrate_decr         = generic_calibrate_decr,
247         .progress               = celleb_progress,
248         .pci_probe_mode         = celleb_pci_probe_mode,
249         .pci_setup_phb          = celleb_setup_phb,
250         .init_IRQ               = celleb_init_IRQ_native,
251 #ifdef CONFIG_KEXEC
252         .machine_kexec          = default_machine_kexec,
253         .machine_kexec_prepare  = default_machine_kexec_prepare,
254         .machine_crash_shutdown = default_machine_crash_shutdown,
255 #endif
256 };