Arnd Bergmann | fef1c77 | 2005-06-23 09:43:37 +1000 | [diff] [blame] | 1 | /* |
Arnd Bergmann | f3f66f5 | 2005-10-31 20:08:37 -0500 | [diff] [blame] | 2 | * linux/arch/powerpc/platforms/cell/cell_setup.c |
Arnd Bergmann | fef1c77 | 2005-06-23 09:43:37 +1000 | [diff] [blame] | 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 |
Arnd Bergmann | f3f66f5 | 2005-10-31 20:08:37 -0500 | [diff] [blame] | 8 | * Modified by Cell Team, IBM Deutschland Entwicklung GmbH |
Arnd Bergmann | fef1c77 | 2005-06-23 09:43:37 +1000 | [diff] [blame] | 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 | |
Arnd Bergmann | fef1c77 | 2005-06-23 09:43:37 +1000 | [diff] [blame] | 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> |
Joel H Schopp | bed120c | 2006-05-01 12:16:11 -0700 | [diff] [blame] | 31 | #include <linux/mutex.h> |
| 32 | #include <linux/memory_hotplug.h> |
Arnd Bergmann | fef1c77 | 2005-06-23 09:43:37 +1000 | [diff] [blame] | 33 | |
| 34 | #include <asm/mmu.h> |
| 35 | #include <asm/processor.h> |
| 36 | #include <asm/io.h> |
Michael Ellerman | 3d1229d | 2005-11-14 23:35:00 +1100 | [diff] [blame] | 37 | #include <asm/kexec.h> |
Arnd Bergmann | fef1c77 | 2005-06-23 09:43:37 +1000 | [diff] [blame] | 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> |
Stephen Rothwell | d387899 | 2005-09-28 02:50:25 +1000 | [diff] [blame] | 48 | #include <asm/ppc-pci.h> |
Paul Mackerras | 40ef8cb | 2005-10-10 22:50:37 +1000 | [diff] [blame] | 49 | #include <asm/irq.h> |
Joel H Schopp | bed120c | 2006-05-01 12:16:11 -0700 | [diff] [blame] | 50 | #include <asm/spu.h> |
Geoff Levand | 540270d | 2006-06-19 20:33:29 +0200 | [diff] [blame] | 51 | #include <asm/spu_priv1.h> |
Dave Jones | 609c999 | 2006-06-29 16:52:53 -0400 | [diff] [blame] | 52 | #include <asm/udbg.h> |
Benjamin Herrenschmidt | 21fb5a1 | 2006-11-11 17:24:58 +1100 | [diff] [blame] | 53 | #include <asm/mpic.h> |
Benjamin Herrenschmidt | 96289b0 | 2006-11-11 17:25:00 +1100 | [diff] [blame^] | 54 | #include <asm/of_platform.h> |
Arnd Bergmann | fef1c77 | 2005-06-23 09:43:37 +1000 | [diff] [blame] | 55 | |
Arnd Bergmann | f3f66f5 | 2005-10-31 20:08:37 -0500 | [diff] [blame] | 56 | #include "interrupt.h" |
| 57 | #include "iommu.h" |
Benjamin Herrenschmidt | acf7d76 | 2006-06-19 20:33:16 +0200 | [diff] [blame] | 58 | #include "cbe_regs.h" |
Arnd Bergmann | c902be7 | 2006-01-04 19:55:53 +0000 | [diff] [blame] | 59 | #include "pervasive.h" |
Benjamin Herrenschmidt | acf7d76 | 2006-06-19 20:33:16 +0200 | [diff] [blame] | 60 | #include "ras.h" |
Arnd Bergmann | fef1c77 | 2005-06-23 09:43:37 +1000 | [diff] [blame] | 61 | |
| 62 | #ifdef DEBUG |
| 63 | #define DBG(fmt...) udbg_printf(fmt) |
| 64 | #else |
| 65 | #define DBG(fmt...) |
| 66 | #endif |
| 67 | |
Arnd Bergmann | 8fce10a | 2006-01-11 23:07:11 +0000 | [diff] [blame] | 68 | static void cell_show_cpuinfo(struct seq_file *m) |
Arnd Bergmann | fef1c77 | 2005-06-23 09:43:37 +1000 | [diff] [blame] | 69 | { |
| 70 | struct device_node *root; |
| 71 | const char *model = ""; |
| 72 | |
| 73 | root = of_find_node_by_path("/"); |
| 74 | if (root) |
| 75 | model = get_property(root, "model", NULL); |
Arnd Bergmann | f3f66f5 | 2005-10-31 20:08:37 -0500 | [diff] [blame] | 76 | seq_printf(m, "machine\t\t: CHRP %s\n", model); |
Arnd Bergmann | fef1c77 | 2005-06-23 09:43:37 +1000 | [diff] [blame] | 77 | of_node_put(root); |
| 78 | } |
| 79 | |
Arnd Bergmann | f3f66f5 | 2005-10-31 20:08:37 -0500 | [diff] [blame] | 80 | static void cell_progress(char *s, unsigned short hex) |
Arnd Bergmann | fef1c77 | 2005-06-23 09:43:37 +1000 | [diff] [blame] | 81 | { |
| 82 | printk("*** %04x : %s\n", hex, s ? s : ""); |
| 83 | } |
| 84 | |
Benjamin Herrenschmidt | 96289b0 | 2006-11-11 17:25:00 +1100 | [diff] [blame^] | 85 | static int __init cell_publish_devices(void) |
| 86 | { |
| 87 | if (machine_is(cell)) |
| 88 | of_platform_bus_probe(NULL, NULL, NULL); |
| 89 | return 0; |
| 90 | } |
| 91 | device_initcall(cell_publish_devices); |
| 92 | |
Benjamin Herrenschmidt | 21fb5a1 | 2006-11-11 17:24:58 +1100 | [diff] [blame] | 93 | static void cell_mpic_cascade(unsigned int irq, struct irq_desc *desc) |
| 94 | { |
| 95 | struct mpic *mpic = desc->handler_data; |
| 96 | unsigned int virq; |
| 97 | |
| 98 | virq = mpic_get_one_irq(mpic); |
| 99 | if (virq != NO_IRQ) |
| 100 | generic_handle_irq(virq); |
| 101 | desc->chip->eoi(irq); |
| 102 | } |
| 103 | |
| 104 | static void __init mpic_init_IRQ(void) |
| 105 | { |
| 106 | struct device_node *dn; |
| 107 | struct mpic *mpic; |
| 108 | unsigned int virq; |
| 109 | |
| 110 | for (dn = NULL; |
| 111 | (dn = of_find_node_by_name(dn, "interrupt-controller"));) { |
| 112 | if (!device_is_compatible(dn, "CBEA,platform-open-pic")) |
| 113 | continue; |
| 114 | |
| 115 | /* The MPIC driver will get everything it needs from the |
| 116 | * device-tree, just pass 0 to all arguments |
| 117 | */ |
| 118 | mpic = mpic_alloc(dn, 0, 0, 0, 0, " MPIC "); |
| 119 | if (mpic == NULL) |
| 120 | continue; |
| 121 | mpic_init(mpic); |
| 122 | |
| 123 | virq = irq_of_parse_and_map(dn, 0); |
| 124 | if (virq == NO_IRQ) |
| 125 | continue; |
| 126 | |
| 127 | printk(KERN_INFO "%s : hooking up to IRQ %d\n", |
| 128 | dn->full_name, virq); |
| 129 | set_irq_data(virq, mpic); |
| 130 | set_irq_chained_handler(virq, cell_mpic_cascade); |
| 131 | } |
| 132 | } |
| 133 | |
| 134 | |
Benjamin Herrenschmidt | b9e5b4e | 2006-07-03 19:32:51 +1000 | [diff] [blame] | 135 | static void __init cell_init_irq(void) |
| 136 | { |
| 137 | iic_init_IRQ(); |
| 138 | spider_init_IRQ(); |
Benjamin Herrenschmidt | 21fb5a1 | 2006-11-11 17:24:58 +1100 | [diff] [blame] | 139 | mpic_init_IRQ(); |
Benjamin Herrenschmidt | b9e5b4e | 2006-07-03 19:32:51 +1000 | [diff] [blame] | 140 | } |
| 141 | |
Arnd Bergmann | f3f66f5 | 2005-10-31 20:08:37 -0500 | [diff] [blame] | 142 | static void __init cell_setup_arch(void) |
Arnd Bergmann | fef1c77 | 2005-06-23 09:43:37 +1000 | [diff] [blame] | 143 | { |
Geoff Levand | 540270d | 2006-06-19 20:33:29 +0200 | [diff] [blame] | 144 | #ifdef CONFIG_SPU_BASE |
| 145 | spu_priv1_ops = &spu_priv1_mmio_ops; |
| 146 | #endif |
Arnd Bergmann | cebf589 | 2005-06-23 09:43:43 +1000 | [diff] [blame] | 147 | |
Benjamin Herrenschmidt | acf7d76 | 2006-06-19 20:33:16 +0200 | [diff] [blame] | 148 | cbe_regs_init(); |
| 149 | |
| 150 | #ifdef CONFIG_CBE_RAS |
| 151 | cbe_ras_init(); |
| 152 | #endif |
| 153 | |
Arnd Bergmann | fef1c77 | 2005-06-23 09:43:37 +1000 | [diff] [blame] | 154 | #ifdef CONFIG_SMP |
Arnd Bergmann | f3f66f5 | 2005-10-31 20:08:37 -0500 | [diff] [blame] | 155 | smp_init_cell(); |
Arnd Bergmann | fef1c77 | 2005-06-23 09:43:37 +1000 | [diff] [blame] | 156 | #endif |
| 157 | |
| 158 | /* init to some ~sane value until calibrate_delay() runs */ |
| 159 | loops_per_jiffy = 50000000; |
| 160 | |
| 161 | if (ROOT_DEV == 0) { |
| 162 | printk("No ramdisk, default root is /dev/hda2\n"); |
| 163 | ROOT_DEV = Root_HDA2; |
| 164 | } |
| 165 | |
| 166 | /* Find and initialize PCI host bridges */ |
| 167 | init_pci_config_tokens(); |
| 168 | find_and_init_phbs(); |
Benjamin Herrenschmidt | acf7d76 | 2006-06-19 20:33:16 +0200 | [diff] [blame] | 169 | cbe_pervasive_init(); |
Arnd Bergmann | fef1c77 | 2005-06-23 09:43:37 +1000 | [diff] [blame] | 170 | #ifdef CONFIG_DUMMY_CONSOLE |
| 171 | conswitchp = &dummy_con; |
| 172 | #endif |
| 173 | |
Arnd Bergmann | f3f66f5 | 2005-10-31 20:08:37 -0500 | [diff] [blame] | 174 | mmio_nvram_init(); |
Arnd Bergmann | fef1c77 | 2005-06-23 09:43:37 +1000 | [diff] [blame] | 175 | } |
| 176 | |
| 177 | /* |
| 178 | * Early initialization. Relocation is on but do not reference unbolted pages |
| 179 | */ |
Arnd Bergmann | f3f66f5 | 2005-10-31 20:08:37 -0500 | [diff] [blame] | 180 | static void __init cell_init_early(void) |
Arnd Bergmann | fef1c77 | 2005-06-23 09:43:37 +1000 | [diff] [blame] | 181 | { |
Arnd Bergmann | f3f66f5 | 2005-10-31 20:08:37 -0500 | [diff] [blame] | 182 | DBG(" -> cell_init_early()\n"); |
Arnd Bergmann | fef1c77 | 2005-06-23 09:43:37 +1000 | [diff] [blame] | 183 | |
Arnd Bergmann | f3f66f5 | 2005-10-31 20:08:37 -0500 | [diff] [blame] | 184 | cell_init_iommu(); |
Arnd Bergmann | fef1c77 | 2005-06-23 09:43:37 +1000 | [diff] [blame] | 185 | |
Arnd Bergmann | f3f66f5 | 2005-10-31 20:08:37 -0500 | [diff] [blame] | 186 | DBG(" <- cell_init_early()\n"); |
Arnd Bergmann | fef1c77 | 2005-06-23 09:43:37 +1000 | [diff] [blame] | 187 | } |
| 188 | |
| 189 | |
Benjamin Herrenschmidt | e822250 | 2006-03-28 23:15:54 +1100 | [diff] [blame] | 190 | static int __init cell_probe(void) |
Arnd Bergmann | fef1c77 | 2005-06-23 09:43:37 +1000 | [diff] [blame] | 191 | { |
Benjamin Herrenschmidt | e822250 | 2006-03-28 23:15:54 +1100 | [diff] [blame] | 192 | unsigned long root = of_get_flat_dt_root(); |
Arnd Bergmann | fef1c77 | 2005-06-23 09:43:37 +1000 | [diff] [blame] | 193 | |
Michael Ellerman | 7d0daae | 2006-06-23 18:16:38 +1000 | [diff] [blame] | 194 | if (!of_flat_dt_is_compatible(root, "IBM,CBEA") && |
| 195 | !of_flat_dt_is_compatible(root, "IBM,CPBW-1.0")) |
| 196 | return 0; |
Arnd Bergmann | 133dda1 | 2006-06-07 12:04:18 +1000 | [diff] [blame] | 197 | |
Michael Ellerman | 7d0daae | 2006-06-23 18:16:38 +1000 | [diff] [blame] | 198 | hpte_init_native(); |
| 199 | |
| 200 | return 1; |
Arnd Bergmann | fef1c77 | 2005-06-23 09:43:37 +1000 | [diff] [blame] | 201 | } |
| 202 | |
David Woodhouse | d52771f | 2005-12-09 19:04:21 +0100 | [diff] [blame] | 203 | /* |
| 204 | * Cell has no legacy IO; anything calling this function has to |
| 205 | * fail or bad things will happen |
| 206 | */ |
| 207 | static int cell_check_legacy_ioport(unsigned int baseport) |
| 208 | { |
| 209 | return -ENODEV; |
| 210 | } |
| 211 | |
Benjamin Herrenschmidt | e822250 | 2006-03-28 23:15:54 +1100 | [diff] [blame] | 212 | define_machine(cell) { |
| 213 | .name = "Cell", |
Arnd Bergmann | f3f66f5 | 2005-10-31 20:08:37 -0500 | [diff] [blame] | 214 | .probe = cell_probe, |
| 215 | .setup_arch = cell_setup_arch, |
| 216 | .init_early = cell_init_early, |
| 217 | .show_cpuinfo = cell_show_cpuinfo, |
Arnd Bergmann | fef1c77 | 2005-06-23 09:43:37 +1000 | [diff] [blame] | 218 | .restart = rtas_restart, |
| 219 | .power_off = rtas_power_off, |
| 220 | .halt = rtas_halt, |
| 221 | .get_boot_time = rtas_get_boot_time, |
| 222 | .get_rtc_time = rtas_get_rtc_time, |
| 223 | .set_rtc_time = rtas_set_rtc_time, |
| 224 | .calibrate_decr = generic_calibrate_decr, |
David Woodhouse | d52771f | 2005-12-09 19:04:21 +0100 | [diff] [blame] | 225 | .check_legacy_ioport = cell_check_legacy_ioport, |
Arnd Bergmann | f3f66f5 | 2005-10-31 20:08:37 -0500 | [diff] [blame] | 226 | .progress = cell_progress, |
Benjamin Herrenschmidt | b9e5b4e | 2006-07-03 19:32:51 +1000 | [diff] [blame] | 227 | .init_IRQ = cell_init_irq, |
Michael Ellerman | 3d1229d | 2005-11-14 23:35:00 +1100 | [diff] [blame] | 228 | #ifdef CONFIG_KEXEC |
| 229 | .machine_kexec = default_machine_kexec, |
| 230 | .machine_kexec_prepare = default_machine_kexec_prepare, |
Michael Ellerman | cc53291 | 2005-12-04 18:39:43 +1100 | [diff] [blame] | 231 | .machine_crash_shutdown = default_machine_crash_shutdown, |
Michael Ellerman | 3d1229d | 2005-11-14 23:35:00 +1100 | [diff] [blame] | 232 | #endif |
Arnd Bergmann | fef1c77 | 2005-06-23 09:43:37 +1000 | [diff] [blame] | 233 | }; |