arch/powerpc/platforms/cell/celleb_setup.c

   1 /*
   2  * Celleb setup code
   3  *
   4  * (C) Copyright 2006-2007 TOSHIBA CORPORATION
   5  *
   6  * This code is based on arch/powerpc/platforms/cell/setup.c:
   7  *  Copyright (C) 1995  Linus Torvalds
   8  *  Adapted from 'alpha' version by Gary Thomas
   9  *  Modified by Cort Dougan (cort@cs.nmt.edu)
  10  *  Modified by PPC64 Team, IBM Corp
  11  *  Modified by Cell Team, IBM Deutschland Entwicklung GmbH
  12  *
  13  * This program is free software; you can redistribute it and/or modify
  14  * it under the terms of the GNU General Public License as published by
  15  * the Free Software Foundation; either version 2 of the License, or
  16  * (at your option) any later version.
  17  *
  18  * This program is distributed in the hope that it will be useful,
  19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21  * GNU General Public License for more details.
  22  *
  23  * You should have received a copy of the GNU General Public License along
  24  * with this program; if not, write to the Free Software Foundation, Inc.,
  25  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  26  */
  27
  28 #undef DEBUG
  29
  30 #include <linux/cpu.h>
  31 #include <linux/sched.h>
  32 #include <linux/kernel.h>
  33 #include <linux/mm.h>
  34 #include <linux/stddef.h>
  35 #include <linux/unistd.h>
  36 #include <linux/reboot.h>
  37 #include <linux/init.h>
  38 #include <linux/delay.h>
  39 #include <linux/irq.h>
  40 #include <linux/seq_file.h>
  41 #include <linux/root_dev.h>
  42 #include <linux/console.h>
  43 #include <linux/of_platform.h>
  44
  45 #include <asm/mmu.h>
  46 #include <asm/processor.h>
  47 #include <asm/io.h>
  48 #include <asm/kexec.h>
  49 #include <asm/prom.h>
  50 #include <asm/machdep.h>
  51 #include <asm/cputable.h>
  52 #include <asm/irq.h>
  53 #include <asm/time.h>
  54 #include <asm/spu_priv1.h>
  55 #include <asm/firmware.h>
  56 #include <asm/rtas.h>
  57 #include <asm/cell-regs.h>
  58
  59 #include "beat_interrupt.h"
  60 #include "beat_wrapper.h"
  61 #include "beat.h"
  62 #include "celleb_pci.h"
  63 #include "interrupt.h"
  64 #include "pervasive.h"
  65 #include "ras.h"
  66
  67 static char celleb_machine_type[128] = "Celleb";
  68
  69 static void celleb_show_cpuinfo(struct seq_file *m)
  70 {
  71         struct device_node *root;
  72         const char *model = "";
  73
  74         root = of_find_node_by_path("/");
  75         if (root)
  76                 model = of_get_property(root, "model", NULL);
  77         /* using "CHRP" is to trick anaconda into installing FCx into Celleb */
  78         seq_printf(m, "machine\t\t: %s %s\n", celleb_machine_type, model);
  79         of_node_put(root);
  80 }
  81
  82 static int __init celleb_machine_type_hack(char *ptr)
  83 {
  84         strncpy(celleb_machine_type, ptr, sizeof(celleb_machine_type));
  85         celleb_machine_type[sizeof(celleb_machine_type)-1] = 0;
  86         return 0;
  87 }
  88
  89 __setup("celleb_machine_type_hack=", celleb_machine_type_hack);
  90
  91 static void celleb_progress(char *s, unsigned short hex)
  92 {
  93         printk("*** %04x : %s\n", hex, s ? s : "");
  94 }
  95
  96 static void __init celleb_setup_arch_common(void)
  97 {
  98         /* init to some ~sane value until calibrate_delay() runs */
  99         loops_per_jiffy = 50000000;
 100
 101 #ifdef CONFIG_DUMMY_CONSOLE
 102         conswitchp = &dummy_con;
 103 #endif
 104 }
 105
 106 static struct of_device_id celleb_bus_ids[] __initdata = {
 107         { .type = "scc", },
 108         { .type = "ioif", },    /* old style */
 109         {},
 110 };
 111
 112 static int __init celleb_publish_devices(void)
 113 {
 114         /* Publish OF platform devices for southbridge IOs */
 115         of_platform_bus_probe(NULL, celleb_bus_ids, NULL);
 116
 117         return 0;
 118 }
 119 machine_device_initcall(celleb_beat, celleb_publish_devices);
 120 machine_device_initcall(celleb_native, celleb_publish_devices);
 121
 122
 123 /*
 124  * functions for Celleb-Beat
 125  */
 126 static void __init celleb_setup_arch_beat(void)
 127 {
 128 #ifdef CONFIG_SPU_BASE
 129         spu_priv1_ops           = &spu_priv1_beat_ops;
 130         spu_management_ops      = &spu_management_of_ops;
 131 #endif
 132
 133 #ifdef CONFIG_SMP
 134         smp_init_celleb();
 135 #endif
 136
 137         celleb_setup_arch_common();
 138 }
 139
 140 static int __init celleb_probe_beat(void)
 141 {
 142         unsigned long root = of_get_flat_dt_root();
 143
 144         if (!of_flat_dt_is_compatible(root, "Beat"))
 145                 return 0;
 146
 147         powerpc_firmware_features |= FW_FEATURE_CELLEB_ALWAYS
 148                 | FW_FEATURE_BEAT | FW_FEATURE_LPAR;
 149         hpte_init_beat_v3();
 150
 151         return 1;
 152 }
 153
 154
 155 /*
 156  * functions for Celleb-native
 157  */
 158 static void __init celleb_init_IRQ_native(void)
 159 {
 160         iic_init_IRQ();
 161         spider_init_IRQ();
 162 }
 163
 164 static void __init celleb_setup_arch_native(void)
 165 {
 166 #ifdef CONFIG_SPU_BASE
 167         spu_priv1_ops           = &spu_priv1_mmio_ops;
 168         spu_management_ops      = &spu_management_of_ops;
 169 #endif
 170
 171         cbe_regs_init();
 172
 173 #ifdef CONFIG_CBE_RAS
 174         cbe_ras_init();
 175 #endif
 176
 177 #ifdef CONFIG_SMP
 178         smp_init_cell();
 179 #endif
 180
 181         cbe_pervasive_init();
 182
 183         /* XXX: nvram initialization should be added */
 184
 185         celleb_setup_arch_common();
 186 }
 187
 188 static int __init celleb_probe_native(void)
 189 {
 190         unsigned long root = of_get_flat_dt_root();
 191
 192         if (of_flat_dt_is_compatible(root, "Beat") ||
 193             !of_flat_dt_is_compatible(root, "TOSHIBA,Celleb"))
 194                 return 0;
 195
 196         powerpc_firmware_features |= FW_FEATURE_CELLEB_ALWAYS;
 197         hpte_init_native();
 198
 199         return 1;
 200 }
 201
 202
 203 /*
 204  * machine definitions
 205  */
 206 define_machine(celleb_beat) {
 207         .name                   = "Cell Reference Set (Beat)",
 208         .probe                  = celleb_probe_beat,
 209         .setup_arch             = celleb_setup_arch_beat,
 210         .show_cpuinfo           = celleb_show_cpuinfo,
 211         .restart                = beat_restart,
 212         .power_off              = beat_power_off,
 213         .halt                   = beat_halt,
 214         .get_rtc_time           = beat_get_rtc_time,
 215         .set_rtc_time           = beat_set_rtc_time,
 216         .calibrate_decr         = generic_calibrate_decr,
 217         .progress               = celleb_progress,
 218         .power_save             = beat_power_save,
 219         .nvram_size             = beat_nvram_get_size,
 220         .nvram_read             = beat_nvram_read,
 221         .nvram_write            = beat_nvram_write,
 222         .set_dabr               = beat_set_xdabr,
 223         .init_IRQ               = beatic_init_IRQ,
 224         .get_irq                = beatic_get_irq,
 225         .pci_probe_mode         = celleb_pci_probe_mode,
 226         .pci_setup_phb          = celleb_setup_phb,
 227 #ifdef CONFIG_KEXEC
 228         .kexec_cpu_down         = beat_kexec_cpu_down,
 229         .machine_kexec          = default_machine_kexec,
 230         .machine_kexec_prepare  = default_machine_kexec_prepare,
 231         .machine_crash_shutdown = default_machine_crash_shutdown,
 232 #endif
 233 };
 234
 235 define_machine(celleb_native) {
 236         .name                   = "Cell Reference Set (native)",
 237         .probe                  = celleb_probe_native,
 238         .setup_arch             = celleb_setup_arch_native,
 239         .show_cpuinfo           = celleb_show_cpuinfo,
 240         .restart                = rtas_restart,
 241         .power_off              = rtas_power_off,
 242         .halt                   = rtas_halt,
 243         .get_boot_time          = rtas_get_boot_time,
 244         .get_rtc_time           = rtas_get_rtc_time,
 245         .set_rtc_time           = rtas_set_rtc_time,
 246         .calibrate_decr         = generic_calibrate_decr,
 247         .progress               = celleb_progress,
 248         .pci_probe_mode         = celleb_pci_probe_mode,
 249         .pci_setup_phb          = celleb_setup_phb,
 250         .init_IRQ               = celleb_init_IRQ_native,
 251 #ifdef CONFIG_KEXEC
 252         .machine_kexec          = default_machine_kexec,
 253         .machine_kexec_prepare  = default_machine_kexec_prepare,
 254         .machine_crash_shutdown = default_machine_crash_shutdown,
 255 #endif
 256 };