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>
53 #include "interrupt.h"
56 #include "pervasive.h"
60 #define DBG(fmt...) udbg_printf(fmt)
65 static void cell_show_cpuinfo(struct seq_file *m)
67 struct device_node *root;
68 const char *model = "";
70 root = of_find_node_by_path("/");
72 model = get_property(root, "model", NULL);
73 seq_printf(m, "machine\t\t: CHRP %s\n", model);
77 static void cell_progress(char *s, unsigned short hex)
79 printk("*** %04x : %s\n", hex, s ? s : "");
82 static void __init cell_setup_arch(void)
84 ppc_md.init_IRQ = iic_init_IRQ;
85 ppc_md.get_irq = iic_get_irq;
86 #ifdef CONFIG_SPU_BASE
87 spu_priv1_ops = &spu_priv1_mmio_ops;
100 /* init to some ~sane value until calibrate_delay() runs */
101 loops_per_jiffy = 50000000;
104 printk("No ramdisk, default root is /dev/hda2\n");
105 ROOT_DEV = Root_HDA2;
108 /* Find and initialize PCI host bridges */
109 init_pci_config_tokens();
110 find_and_init_phbs();
112 cbe_pervasive_init();
113 #ifdef CONFIG_DUMMY_CONSOLE
114 conswitchp = &dummy_con;
121 * Early initialization. Relocation is on but do not reference unbolted pages
123 static void __init cell_init_early(void)
125 DBG(" -> cell_init_early()\n");
129 ppc64_interrupt_controller = IC_CELL_PIC;
131 DBG(" <- cell_init_early()\n");
135 static int __init cell_probe(void)
137 unsigned long root = of_get_flat_dt_root();
139 if (!of_flat_dt_is_compatible(root, "IBM,CBEA") &&
140 !of_flat_dt_is_compatible(root, "IBM,CPBW-1.0"))
143 #ifdef CONFIG_UDBG_RTAS_CONSOLE
144 udbg_init_rtas_console();
153 * Cell has no legacy IO; anything calling this function has to
154 * fail or bad things will happen
156 static int cell_check_legacy_ioport(unsigned int baseport)
161 define_machine(cell) {
164 .setup_arch = cell_setup_arch,
165 .init_early = cell_init_early,
166 .show_cpuinfo = cell_show_cpuinfo,
167 .restart = rtas_restart,
168 .power_off = rtas_power_off,
170 .get_boot_time = rtas_get_boot_time,
171 .get_rtc_time = rtas_get_rtc_time,
172 .set_rtc_time = rtas_set_rtc_time,
173 .calibrate_decr = generic_calibrate_decr,
174 .check_legacy_ioport = cell_check_legacy_ioport,
175 .progress = cell_progress,
177 .machine_kexec = default_machine_kexec,
178 .machine_kexec_prepare = default_machine_kexec_prepare,
179 .machine_crash_shutdown = default_machine_crash_shutdown,