2 * linux/arch/powerpc/platforms/cell/cell_setup.c
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
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.
17 #include <linux/sched.h>
18 #include <linux/kernel.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>
35 #include <asm/processor.h>
37 #include <asm/kexec.h>
38 #include <asm/pgtable.h>
41 #include <asm/pci-bridge.h>
42 #include <asm/iommu.h>
44 #include <asm/machdep.h>
46 #include <asm/nvram.h>
47 #include <asm/cputable.h>
48 #include <asm/ppc-pci.h>
51 #include <asm/spu_priv1.h>
54 #include "interrupt.h"
57 #include "pervasive.h"
61 #define DBG(fmt...) udbg_printf(fmt)
66 static void cell_show_cpuinfo(struct seq_file
*m
)
68 struct device_node
*root
;
69 const char *model
= "";
71 root
= of_find_node_by_path("/");
73 model
= get_property(root
, "model", NULL
);
74 seq_printf(m
, "machine\t\t: CHRP %s\n", model
);
78 static void cell_progress(char *s
, unsigned short hex
)
80 printk("*** %04x : %s\n", hex
, s
? s
: "");
83 static void __init
cell_pcibios_fixup(void)
85 struct pci_dev
*dev
= NULL
;
88 pci_read_irq_line(dev
);
91 static void __init
cell_init_irq(void)
97 static void __init
cell_setup_arch(void)
99 #ifdef CONFIG_SPU_BASE
100 spu_priv1_ops
= &spu_priv1_mmio_ops
;
105 #ifdef CONFIG_CBE_RAS
113 /* init to some ~sane value until calibrate_delay() runs */
114 loops_per_jiffy
= 50000000;
117 printk("No ramdisk, default root is /dev/hda2\n");
118 ROOT_DEV
= Root_HDA2
;
121 /* Find and initialize PCI host bridges */
122 init_pci_config_tokens();
123 find_and_init_phbs();
124 cbe_pervasive_init();
125 #ifdef CONFIG_DUMMY_CONSOLE
126 conswitchp
= &dummy_con
;
133 * Early initialization. Relocation is on but do not reference unbolted pages
135 static void __init
cell_init_early(void)
137 DBG(" -> cell_init_early()\n");
141 DBG(" <- cell_init_early()\n");
145 static int __init
cell_probe(void)
147 unsigned long root
= of_get_flat_dt_root();
149 if (!of_flat_dt_is_compatible(root
, "IBM,CBEA") &&
150 !of_flat_dt_is_compatible(root
, "IBM,CPBW-1.0"))
153 #ifdef CONFIG_UDBG_RTAS_CONSOLE
154 udbg_init_rtas_console();
163 * Cell has no legacy IO; anything calling this function has to
164 * fail or bad things will happen
166 static int cell_check_legacy_ioport(unsigned int baseport
)
171 define_machine(cell
) {
174 .setup_arch
= cell_setup_arch
,
175 .init_early
= cell_init_early
,
176 .show_cpuinfo
= cell_show_cpuinfo
,
177 .restart
= rtas_restart
,
178 .power_off
= rtas_power_off
,
180 .get_boot_time
= rtas_get_boot_time
,
181 .get_rtc_time
= rtas_get_rtc_time
,
182 .set_rtc_time
= rtas_set_rtc_time
,
183 .calibrate_decr
= generic_calibrate_decr
,
184 .check_legacy_ioport
= cell_check_legacy_ioport
,
185 .progress
= cell_progress
,
186 .init_IRQ
= cell_init_irq
,
187 .pcibios_fixup
= cell_pcibios_fixup
,
189 .machine_kexec
= default_machine_kexec
,
190 .machine_kexec_prepare
= default_machine_kexec_prepare
,
191 .machine_crash_shutdown
= default_machine_crash_shutdown
,