Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
[linux-2.6] / arch / powerpc / platforms / cell / qpace_setup.c
1 /*
2  *  linux/arch/powerpc/platforms/cell/qpace_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  *  Modified by Benjamin Krill <ben@codiert.org>, IBM Corp.
10  *
11  * This program is free software; you can redistribute it and/or
12  * modify it under the terms of the GNU General Public License
13  * as published by the Free Software Foundation; either version
14  * 2 of the License, or (at your option) any later version.
15  */
16
17 #include <linux/sched.h>
18 #include <linux/kernel.h>
19 #include <linux/init.h>
20 #include <linux/delay.h>
21 #include <linux/irq.h>
22 #include <linux/console.h>
23 #include <linux/of_platform.h>
24
25 #include <asm/mmu.h>
26 #include <asm/processor.h>
27 #include <asm/io.h>
28 #include <asm/kexec.h>
29 #include <asm/pgtable.h>
30 #include <asm/prom.h>
31 #include <asm/rtas.h>
32 #include <asm/dma.h>
33 #include <asm/machdep.h>
34 #include <asm/time.h>
35 #include <asm/cputable.h>
36 #include <asm/irq.h>
37 #include <asm/spu.h>
38 #include <asm/spu_priv1.h>
39 #include <asm/udbg.h>
40 #include <asm/cell-regs.h>
41
42 #include "interrupt.h"
43 #include "pervasive.h"
44 #include "ras.h"
45 #include "io-workarounds.h"
46
47 static void qpace_show_cpuinfo(struct seq_file *m)
48 {
49         struct device_node *root;
50         const char *model = "";
51
52         root = of_find_node_by_path("/");
53         if (root)
54                 model = of_get_property(root, "model", NULL);
55         seq_printf(m, "machine\t\t: CHRP %s\n", model);
56         of_node_put(root);
57 }
58
59 static void qpace_progress(char *s, unsigned short hex)
60 {
61         printk("*** %04x : %s\n", hex, s ? s : "");
62 }
63
64 static int __init qpace_publish_devices(void)
65 {
66         int node;
67
68         /* Publish OF platform devices for southbridge IOs */
69         of_platform_bus_probe(NULL, NULL, NULL);
70
71         /* There is no device for the MIC memory controller, thus we create
72          * a platform device for it to attach the EDAC driver to.
73          */
74         for_each_online_node(node) {
75                 if (cbe_get_cpu_mic_tm_regs(cbe_node_to_cpu(node)) == NULL)
76                         continue;
77                 platform_device_register_simple("cbe-mic", node, NULL, 0);
78         }
79
80         return 0;
81 }
82 machine_subsys_initcall(qpace, qpace_publish_devices);
83
84 extern int qpace_notify(struct device *dev)
85 {
86         /* set dma_ops for of_platform bus */
87         if (dev->bus && dev->bus->name
88                         && !strcmp(dev->bus->name, "of_platform"))
89                 set_dma_ops(dev, &dma_direct_ops);
90
91         return 0;
92 }
93
94 static void __init qpace_setup_arch(void)
95 {
96 #ifdef CONFIG_SPU_BASE
97         spu_priv1_ops = &spu_priv1_mmio_ops;
98         spu_management_ops = &spu_management_of_ops;
99 #endif
100
101         cbe_regs_init();
102
103 #ifdef CONFIG_CBE_RAS
104         cbe_ras_init();
105 #endif
106
107 #ifdef CONFIG_SMP
108         smp_init_cell();
109 #endif
110
111         /* init to some ~sane value until calibrate_delay() runs */
112         loops_per_jiffy = 50000000;
113
114         cbe_pervasive_init();
115 #ifdef CONFIG_DUMMY_CONSOLE
116         conswitchp = &dummy_con;
117 #endif
118
119         /* set notifier function */
120         platform_notify = &qpace_notify;
121 }
122
123 static int __init qpace_probe(void)
124 {
125         unsigned long root = of_get_flat_dt_root();
126
127         if (!of_flat_dt_is_compatible(root, "IBM,QPACE"))
128                 return 0;
129
130         hpte_init_native();
131
132         return 1;
133 }
134
135 define_machine(qpace) {
136         .name                   = "QPACE",
137         .probe                  = qpace_probe,
138         .setup_arch             = qpace_setup_arch,
139         .show_cpuinfo           = qpace_show_cpuinfo,
140         .restart                = rtas_restart,
141         .power_off              = rtas_power_off,
142         .halt                   = rtas_halt,
143         .get_boot_time          = rtas_get_boot_time,
144         .calibrate_decr         = generic_calibrate_decr,
145         .progress               = qpace_progress,
146         .init_IRQ               = iic_init_IRQ,
147 #ifdef CONFIG_KEXEC
148         .machine_kexec          = default_machine_kexec,
149         .machine_kexec_prepare  = default_machine_kexec_prepare,
150         .machine_crash_shutdown = default_machine_crash_shutdown,
151 #endif
152 };