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Commit | Line | Data |
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fef1c772 | 1 | /* |
f3f66f59 | 2 | * linux/arch/powerpc/platforms/cell/cell_setup.c |
fef1c772 AB |
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 | |
f3f66f59 | 8 | * Modified by Cell Team, IBM Deutschland Entwicklung GmbH |
fef1c772 AB |
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 | ||
fef1c772 AB |
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> | |
bed120c6 JS |
31 | #include <linux/mutex.h> |
32 | #include <linux/memory_hotplug.h> | |
fef1c772 AB |
33 | |
34 | #include <asm/mmu.h> | |
35 | #include <asm/processor.h> | |
36 | #include <asm/io.h> | |
3d1229d6 | 37 | #include <asm/kexec.h> |
fef1c772 AB |
38 | #include <asm/pgtable.h> |
39 | #include <asm/prom.h> | |
40 | #include <asm/rtas.h> | |
41 | #include <asm/pci-bridge.h> | |
42 | #include <asm/iommu.h> | |
43 | #include <asm/dma.h> | |
44 | #include <asm/machdep.h> | |
45 | #include <asm/time.h> | |
46 | #include <asm/nvram.h> | |
47 | #include <asm/cputable.h> | |
d387899f | 48 | #include <asm/ppc-pci.h> |
40ef8cbc | 49 | #include <asm/irq.h> |
bed120c6 | 50 | #include <asm/spu.h> |
540270d8 | 51 | #include <asm/spu_priv1.h> |
609c9991 | 52 | #include <asm/udbg.h> |
21fb5a1d | 53 | #include <asm/mpic.h> |
96289b07 | 54 | #include <asm/of_platform.h> |
fef1c772 | 55 | |
f3f66f59 | 56 | #include "interrupt.h" |
acf7d768 | 57 | #include "cbe_regs.h" |
c902be71 | 58 | #include "pervasive.h" |
acf7d768 | 59 | #include "ras.h" |
fef1c772 AB |
60 | |
61 | #ifdef DEBUG | |
62 | #define DBG(fmt...) udbg_printf(fmt) | |
63 | #else | |
64 | #define DBG(fmt...) | |
65 | #endif | |
66 | ||
8fce10a3 | 67 | static void cell_show_cpuinfo(struct seq_file *m) |
fef1c772 AB |
68 | { |
69 | struct device_node *root; | |
70 | const char *model = ""; | |
71 | ||
72 | root = of_find_node_by_path("/"); | |
73 | if (root) | |
e2eb6392 | 74 | model = of_get_property(root, "model", NULL); |
f3f66f59 | 75 | seq_printf(m, "machine\t\t: CHRP %s\n", model); |
fef1c772 AB |
76 | of_node_put(root); |
77 | } | |
78 | ||
f3f66f59 | 79 | static void cell_progress(char *s, unsigned short hex) |
fef1c772 AB |
80 | { |
81 | printk("*** %04x : %s\n", hex, s ? s : ""); | |
82 | } | |
83 | ||
96289b07 BH |
84 | static int __init cell_publish_devices(void) |
85 | { | |
86810878 BH |
86 | if (!machine_is(cell)) |
87 | return 0; | |
88 | ||
86810878 BH |
89 | /* Publish OF platform devices for southbridge IOs */ |
90 | of_platform_bus_probe(NULL, NULL, NULL); | |
91 | ||
96289b07 BH |
92 | return 0; |
93 | } | |
94 | device_initcall(cell_publish_devices); | |
95 | ||
21fb5a1d BH |
96 | static void cell_mpic_cascade(unsigned int irq, struct irq_desc *desc) |
97 | { | |
98 | struct mpic *mpic = desc->handler_data; | |
99 | unsigned int virq; | |
100 | ||
101 | virq = mpic_get_one_irq(mpic); | |
102 | if (virq != NO_IRQ) | |
103 | generic_handle_irq(virq); | |
104 | desc->chip->eoi(irq); | |
105 | } | |
106 | ||
107 | static void __init mpic_init_IRQ(void) | |
108 | { | |
109 | struct device_node *dn; | |
110 | struct mpic *mpic; | |
111 | unsigned int virq; | |
112 | ||
113 | for (dn = NULL; | |
114 | (dn = of_find_node_by_name(dn, "interrupt-controller"));) { | |
115 | if (!device_is_compatible(dn, "CBEA,platform-open-pic")) | |
116 | continue; | |
117 | ||
118 | /* The MPIC driver will get everything it needs from the | |
119 | * device-tree, just pass 0 to all arguments | |
120 | */ | |
121 | mpic = mpic_alloc(dn, 0, 0, 0, 0, " MPIC "); | |
122 | if (mpic == NULL) | |
123 | continue; | |
124 | mpic_init(mpic); | |
125 | ||
126 | virq = irq_of_parse_and_map(dn, 0); | |
127 | if (virq == NO_IRQ) | |
128 | continue; | |
129 | ||
130 | printk(KERN_INFO "%s : hooking up to IRQ %d\n", | |
131 | dn->full_name, virq); | |
132 | set_irq_data(virq, mpic); | |
133 | set_irq_chained_handler(virq, cell_mpic_cascade); | |
134 | } | |
135 | } | |
136 | ||
137 | ||
b9e5b4e6 BH |
138 | static void __init cell_init_irq(void) |
139 | { | |
140 | iic_init_IRQ(); | |
141 | spider_init_IRQ(); | |
21fb5a1d | 142 | mpic_init_IRQ(); |
b9e5b4e6 BH |
143 | } |
144 | ||
f3f66f59 | 145 | static void __init cell_setup_arch(void) |
fef1c772 | 146 | { |
540270d8 | 147 | #ifdef CONFIG_SPU_BASE |
e28b0031 GL |
148 | spu_priv1_ops = &spu_priv1_mmio_ops; |
149 | spu_management_ops = &spu_management_of_ops; | |
540270d8 | 150 | #endif |
cebf589c | 151 | |
acf7d768 BH |
152 | cbe_regs_init(); |
153 | ||
154 | #ifdef CONFIG_CBE_RAS | |
155 | cbe_ras_init(); | |
156 | #endif | |
157 | ||
fef1c772 | 158 | #ifdef CONFIG_SMP |
f3f66f59 | 159 | smp_init_cell(); |
fef1c772 | 160 | #endif |
fef1c772 AB |
161 | /* init to some ~sane value until calibrate_delay() runs */ |
162 | loops_per_jiffy = 50000000; | |
163 | ||
164 | if (ROOT_DEV == 0) { | |
165 | printk("No ramdisk, default root is /dev/hda2\n"); | |
166 | ROOT_DEV = Root_HDA2; | |
167 | } | |
168 | ||
169 | /* Find and initialize PCI host bridges */ | |
170 | init_pci_config_tokens(); | |
171 | find_and_init_phbs(); | |
acf7d768 | 172 | cbe_pervasive_init(); |
fef1c772 AB |
173 | #ifdef CONFIG_DUMMY_CONSOLE |
174 | conswitchp = &dummy_con; | |
175 | #endif | |
176 | ||
f3f66f59 | 177 | mmio_nvram_init(); |
fef1c772 AB |
178 | } |
179 | ||
e8222502 | 180 | static int __init cell_probe(void) |
fef1c772 | 181 | { |
e8222502 | 182 | unsigned long root = of_get_flat_dt_root(); |
fef1c772 | 183 | |
7d0daae4 ME |
184 | if (!of_flat_dt_is_compatible(root, "IBM,CBEA") && |
185 | !of_flat_dt_is_compatible(root, "IBM,CPBW-1.0")) | |
186 | return 0; | |
187 | ||
188 | hpte_init_native(); | |
133dda1e | 189 | |
7d0daae4 | 190 | return 1; |
fef1c772 AB |
191 | } |
192 | ||
d52771fc DW |
193 | /* |
194 | * Cell has no legacy IO; anything calling this function has to | |
195 | * fail or bad things will happen | |
196 | */ | |
197 | static int cell_check_legacy_ioport(unsigned int baseport) | |
198 | { | |
199 | return -ENODEV; | |
200 | } | |
201 | ||
e8222502 BH |
202 | define_machine(cell) { |
203 | .name = "Cell", | |
f3f66f59 AB |
204 | .probe = cell_probe, |
205 | .setup_arch = cell_setup_arch, | |
f3f66f59 | 206 | .show_cpuinfo = cell_show_cpuinfo, |
fef1c772 AB |
207 | .restart = rtas_restart, |
208 | .power_off = rtas_power_off, | |
209 | .halt = rtas_halt, | |
210 | .get_boot_time = rtas_get_boot_time, | |
211 | .get_rtc_time = rtas_get_rtc_time, | |
212 | .set_rtc_time = rtas_set_rtc_time, | |
213 | .calibrate_decr = generic_calibrate_decr, | |
d52771fc | 214 | .check_legacy_ioport = cell_check_legacy_ioport, |
f3f66f59 | 215 | .progress = cell_progress, |
b9e5b4e6 | 216 | .init_IRQ = cell_init_irq, |
4c9d2800 | 217 | .pci_setup_phb = rtas_setup_phb, |
3d1229d6 ME |
218 | #ifdef CONFIG_KEXEC |
219 | .machine_kexec = default_machine_kexec, | |
220 | .machine_kexec_prepare = default_machine_kexec_prepare, | |
cc532915 | 221 | .machine_crash_shutdown = default_machine_crash_shutdown, |
3d1229d6 | 222 | #endif |
fef1c772 | 223 | }; |