Merge branches 'release', 'bugzilla-6217', 'bugzilla-6629', 'bugzilla-6933', 'bugzill...
[linux-2.6] / arch / powerpc / platforms / cell / setup.c
1 /*
2  *  linux/arch/powerpc/platforms/cell/cell_setup.c
3  *
4  *  Copyright (C) 1995  Linus Torvalds
5  *  Adapted from 'alpha' version by Gary Thomas
6  *  Modified by Cort Dougan (cort@cs.nmt.edu)
7  *  Modified by PPC64 Team, IBM Corp
8  *  Modified by Cell Team, IBM Deutschland Entwicklung GmbH
9  *
10  * This program is free software; you can redistribute it and/or
11  * modify it under the terms of the GNU General Public License
12  * as published by the Free Software Foundation; either version
13  * 2 of the License, or (at your option) any later version.
14  */
15 #undef DEBUG
16
17 #include <linux/sched.h>
18 #include <linux/kernel.h>
19 #include <linux/mm.h>
20 #include <linux/stddef.h>
21 #include <linux/unistd.h>
22 #include <linux/slab.h>
23 #include <linux/user.h>
24 #include <linux/reboot.h>
25 #include <linux/init.h>
26 #include <linux/delay.h>
27 #include <linux/irq.h>
28 #include <linux/seq_file.h>
29 #include <linux/root_dev.h>
30 #include <linux/console.h>
31 #include <linux/mutex.h>
32 #include <linux/memory_hotplug.h>
33 #include <linux/of_platform.h>
34
35 #include <asm/mmu.h>
36 #include <asm/processor.h>
37 #include <asm/io.h>
38 #include <asm/kexec.h>
39 #include <asm/pgtable.h>
40 #include <asm/prom.h>
41 #include <asm/rtas.h>
42 #include <asm/pci-bridge.h>
43 #include <asm/iommu.h>
44 #include <asm/dma.h>
45 #include <asm/machdep.h>
46 #include <asm/time.h>
47 #include <asm/nvram.h>
48 #include <asm/cputable.h>
49 #include <asm/ppc-pci.h>
50 #include <asm/irq.h>
51 #include <asm/spu.h>
52 #include <asm/spu_priv1.h>
53 #include <asm/udbg.h>
54 #include <asm/mpic.h>
55 #include <asm/cell-regs.h>
56
57 #include "interrupt.h"
58 #include "pervasive.h"
59 #include "ras.h"
60
61 #ifdef DEBUG
62 #define DBG(fmt...) udbg_printf(fmt)
63 #else
64 #define DBG(fmt...)
65 #endif
66
67 static void cell_show_cpuinfo(struct seq_file *m)
68 {
69         struct device_node *root;
70         const char *model = "";
71
72         root = of_find_node_by_path("/");
73         if (root)
74                 model = of_get_property(root, "model", NULL);
75         seq_printf(m, "machine\t\t: CHRP %s\n", model);
76         of_node_put(root);
77 }
78
79 static void cell_progress(char *s, unsigned short hex)
80 {
81         printk("*** %04x : %s\n", hex, s ? s : "");
82 }
83
84 static int __init cell_publish_devices(void)
85 {
86         int node;
87
88         /* Publish OF platform devices for southbridge IOs */
89         of_platform_bus_probe(NULL, NULL, NULL);
90
91         /* There is no device for the MIC memory controller, thus we create
92          * a platform device for it to attach the EDAC driver to.
93          */
94         for_each_online_node(node) {
95                 if (cbe_get_cpu_mic_tm_regs(cbe_node_to_cpu(node)) == NULL)
96                         continue;
97                 platform_device_register_simple("cbe-mic", node, NULL, 0);
98         }
99         return 0;
100 }
101 machine_device_initcall(cell, cell_publish_devices);
102
103 static void cell_mpic_cascade(unsigned int irq, struct irq_desc *desc)
104 {
105         struct mpic *mpic = desc->handler_data;
106         unsigned int virq;
107
108         virq = mpic_get_one_irq(mpic);
109         if (virq != NO_IRQ)
110                 generic_handle_irq(virq);
111         desc->chip->eoi(irq);
112 }
113
114 static void __init mpic_init_IRQ(void)
115 {
116         struct device_node *dn;
117         struct mpic *mpic;
118         unsigned int virq;
119
120         for (dn = NULL;
121              (dn = of_find_node_by_name(dn, "interrupt-controller"));) {
122                 if (!of_device_is_compatible(dn, "CBEA,platform-open-pic"))
123                         continue;
124
125                 /* The MPIC driver will get everything it needs from the
126                  * device-tree, just pass 0 to all arguments
127                  */
128                 mpic = mpic_alloc(dn, 0, 0, 0, 0, " MPIC     ");
129                 if (mpic == NULL)
130                         continue;
131                 mpic_init(mpic);
132
133                 virq = irq_of_parse_and_map(dn, 0);
134                 if (virq == NO_IRQ)
135                         continue;
136
137                 printk(KERN_INFO "%s : hooking up to IRQ %d\n",
138                        dn->full_name, virq);
139                 set_irq_data(virq, mpic);
140                 set_irq_chained_handler(virq, cell_mpic_cascade);
141         }
142 }
143
144
145 static void __init cell_init_irq(void)
146 {
147         iic_init_IRQ();
148         spider_init_IRQ();
149         mpic_init_IRQ();
150 }
151
152 static void __init cell_setup_arch(void)
153 {
154 #ifdef CONFIG_SPU_BASE
155         spu_priv1_ops = &spu_priv1_mmio_ops;
156         spu_management_ops = &spu_management_of_ops;
157 #endif
158
159         cbe_regs_init();
160
161 #ifdef CONFIG_CBE_RAS
162         cbe_ras_init();
163 #endif
164
165 #ifdef CONFIG_SMP
166         smp_init_cell();
167 #endif
168         /* init to some ~sane value until calibrate_delay() runs */
169         loops_per_jiffy = 50000000;
170
171         /* Find and initialize PCI host bridges */
172         init_pci_config_tokens();
173         find_and_init_phbs();
174         cbe_pervasive_init();
175 #ifdef CONFIG_DUMMY_CONSOLE
176         conswitchp = &dummy_con;
177 #endif
178
179         mmio_nvram_init();
180 }
181
182 static int __init cell_probe(void)
183 {
184         unsigned long root = of_get_flat_dt_root();
185
186         if (!of_flat_dt_is_compatible(root, "IBM,CBEA") &&
187             !of_flat_dt_is_compatible(root, "IBM,CPBW-1.0"))
188                 return 0;
189
190         hpte_init_native();
191
192         return 1;
193 }
194
195 define_machine(cell) {
196         .name                   = "Cell",
197         .probe                  = cell_probe,
198         .setup_arch             = cell_setup_arch,
199         .show_cpuinfo           = cell_show_cpuinfo,
200         .restart                = rtas_restart,
201         .power_off              = rtas_power_off,
202         .halt                   = rtas_halt,
203         .get_boot_time          = rtas_get_boot_time,
204         .get_rtc_time           = rtas_get_rtc_time,
205         .set_rtc_time           = rtas_set_rtc_time,
206         .calibrate_decr         = generic_calibrate_decr,
207         .progress               = cell_progress,
208         .init_IRQ               = cell_init_irq,
209         .pci_setup_phb          = rtas_setup_phb,
210 #ifdef CONFIG_KEXEC
211         .machine_kexec          = default_machine_kexec,
212         .machine_kexec_prepare  = default_machine_kexec_prepare,
213         .machine_crash_shutdown = default_machine_crash_shutdown,
214 #endif
215 };