blob: bfc33fb2c7c42fac707577c19a59abe4931f1e3a [file] [log] [blame]
Geoff Levandf58a9d12006-11-23 00:46:51 +01001/*
2 * PS3 platform setup routines.
3 *
4 * Copyright (C) 2006 Sony Computer Entertainment Inc.
5 * Copyright 2006 Sony Corp.
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; version 2 of the License.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 */
20
21#include <linux/kernel.h>
22#include <linux/delay.h>
23#include <linux/fs.h>
24#include <linux/root_dev.h>
25#include <linux/console.h>
26#include <linux/kexec.h>
Geert Uytterhoevenfbdb3e5b2007-02-12 00:55:22 -080027#include <linux/bootmem.h>
Geoff Levandf58a9d12006-11-23 00:46:51 +010028
29#include <asm/machdep.h>
30#include <asm/firmware.h>
31#include <asm/time.h>
32#include <asm/iommu.h>
33#include <asm/udbg.h>
34#include <asm/prom.h>
35#include <asm/lv1call.h>
36
37#include "platform.h"
38
39#if defined(DEBUG)
Geert Uytterhoeven83bb6432007-06-16 07:19:23 +100040#define DBG udbg_printf
Geoff Levandf58a9d12006-11-23 00:46:51 +010041#else
Geert Uytterhoeven83bb6432007-06-16 07:19:23 +100042#define DBG pr_debug
Geoff Levandf58a9d12006-11-23 00:46:51 +010043#endif
44
Geert Uytterhoeven9b82f3e2008-10-30 08:12:58 +000045/* mutex synchronizing GPU accesses and video mode changes */
46DEFINE_MUTEX(ps3_gpu_mutex);
47EXPORT_SYMBOL_GPL(ps3_gpu_mutex);
48
Geoff Levandfde5efd2007-02-07 12:20:01 -080049#if !defined(CONFIG_SMP)
50static void smp_send_stop(void) {}
51#endif
52
Masakazu Mokuno13228102007-06-16 07:18:48 +100053static union ps3_firmware_version ps3_firmware_version;
54
55void ps3_get_firmware_version(union ps3_firmware_version *v)
Geoff Levand66b44952007-01-26 19:08:21 -080056{
Masakazu Mokuno13228102007-06-16 07:18:48 +100057 *v = ps3_firmware_version;
Geoff Levand66b44952007-01-26 19:08:21 -080058}
59EXPORT_SYMBOL_GPL(ps3_get_firmware_version);
60
Masakazu Mokuno13228102007-06-16 07:18:48 +100061int ps3_compare_firmware_version(u16 major, u16 minor, u16 rev)
62{
63 union ps3_firmware_version x;
64
65 x.pad = 0;
66 x.major = major;
67 x.minor = minor;
68 x.rev = rev;
69
Masakazu Mokunofc43dca2007-08-29 20:30:25 +090070 return (ps3_firmware_version.raw > x.raw) -
71 (ps3_firmware_version.raw < x.raw);
Masakazu Mokuno13228102007-06-16 07:18:48 +100072}
73EXPORT_SYMBOL_GPL(ps3_compare_firmware_version);
74
Geoff Levandf58a9d12006-11-23 00:46:51 +010075static void ps3_power_save(void)
76{
77 /*
78 * lv1_pause() puts the PPE thread into inactive state until an
79 * irq on an unmasked plug exists. MSR[EE] has no effect.
80 * flags: 0 = wake on DEC interrupt, 1 = ignore DEC interrupt.
81 */
82
83 lv1_pause(0);
84}
85
Geoff Levandfde5efd2007-02-07 12:20:01 -080086static void ps3_restart(char *cmd)
87{
88 DBG("%s:%d cmd '%s'\n", __func__, __LINE__, cmd);
89
90 smp_send_stop();
91 ps3_sys_manager_restart(); /* never returns */
92}
93
94static void ps3_power_off(void)
95{
96 DBG("%s:%d\n", __func__, __LINE__);
97
98 smp_send_stop();
99 ps3_sys_manager_power_off(); /* never returns */
100}
101
Geert Uytterhoevenca052f72008-03-27 11:38:31 +1100102static void ps3_halt(void)
103{
104 DBG("%s:%d\n", __func__, __LINE__);
105
106 smp_send_stop();
107 ps3_sys_manager_halt(); /* never returns */
108}
109
Geoff Levandf58a9d12006-11-23 00:46:51 +0100110static void ps3_panic(char *str)
111{
112 DBG("%s:%d %s\n", __func__, __LINE__, str);
113
Geoff Levandf58a9d12006-11-23 00:46:51 +0100114 smp_send_stop();
Geoff Levandf58a9d12006-11-23 00:46:51 +0100115 printk("\n");
116 printk(" System does not reboot automatically.\n");
117 printk(" Please press POWER button.\n");
118 printk("\n");
119
Geert Uytterhoevenca052f72008-03-27 11:38:31 +1100120 while(1)
121 lv1_pause(1);
Geoff Levandf58a9d12006-11-23 00:46:51 +0100122}
123
Geert Uytterhoeven32d73312007-06-22 00:14:20 +1000124#if defined(CONFIG_FB_PS3) || defined(CONFIG_FB_PS3_MODULE) || \
125 defined(CONFIG_PS3_FLASH) || defined(CONFIG_PS3_FLASH_MODULE)
Stephen Rothwellcba684f2007-07-31 17:22:00 +1000126static void __init prealloc(struct ps3_prealloc *p)
Geert Uytterhoevenfbdb3e5b2007-02-12 00:55:22 -0800127{
128 if (!p->size)
129 return;
130
131 p->address = __alloc_bootmem(p->size, p->align, __pa(MAX_DMA_ADDRESS));
132 if (!p->address) {
Harvey Harrisone48b1b42008-03-29 08:21:07 +1100133 printk(KERN_ERR "%s: Cannot allocate %s\n", __func__,
Geert Uytterhoevenfbdb3e5b2007-02-12 00:55:22 -0800134 p->name);
135 return;
136 }
137
138 printk(KERN_INFO "%s: %lu bytes at %p\n", p->name, p->size,
139 p->address);
140}
Geert Uytterhoeven32d73312007-06-22 00:14:20 +1000141#endif
Geert Uytterhoevenfbdb3e5b2007-02-12 00:55:22 -0800142
Geert Uytterhoeven32d73312007-06-22 00:14:20 +1000143#if defined(CONFIG_FB_PS3) || defined(CONFIG_FB_PS3_MODULE)
Geert Uytterhoevenfbdb3e5b2007-02-12 00:55:22 -0800144struct ps3_prealloc ps3fb_videomemory = {
Geert Uytterhoeven9e6b99b2007-06-16 08:05:38 +1000145 .name = "ps3fb videomemory",
146 .size = CONFIG_FB_PS3_DEFAULT_SIZE_M*1024*1024,
147 .align = 1024*1024 /* the GPU requires 1 MiB alignment */
Geert Uytterhoevenfbdb3e5b2007-02-12 00:55:22 -0800148};
Geert Uytterhoeven9e6b99b2007-06-16 08:05:38 +1000149EXPORT_SYMBOL_GPL(ps3fb_videomemory);
Geert Uytterhoevenfbdb3e5b2007-02-12 00:55:22 -0800150#define prealloc_ps3fb_videomemory() prealloc(&ps3fb_videomemory)
151
152static int __init early_parse_ps3fb(char *p)
153{
154 if (!p)
155 return 1;
156
157 ps3fb_videomemory.size = _ALIGN_UP(memparse(p, &p),
158 ps3fb_videomemory.align);
159 return 0;
160}
161early_param("ps3fb", early_parse_ps3fb);
162#else
163#define prealloc_ps3fb_videomemory() do { } while (0)
164#endif
165
Geert Uytterhoeven32d73312007-06-22 00:14:20 +1000166#if defined(CONFIG_PS3_FLASH) || defined(CONFIG_PS3_FLASH_MODULE)
167struct ps3_prealloc ps3flash_bounce_buffer = {
168 .name = "ps3flash bounce buffer",
169 .size = 256*1024,
170 .align = 256*1024
171};
172EXPORT_SYMBOL_GPL(ps3flash_bounce_buffer);
173#define prealloc_ps3flash_bounce_buffer() prealloc(&ps3flash_bounce_buffer)
174
175static int __init early_parse_ps3flash(char *p)
176{
177 if (!p)
178 return 1;
179
180 if (!strcmp(p, "off"))
181 ps3flash_bounce_buffer.size = 0;
182
183 return 0;
184}
185early_param("ps3flash", early_parse_ps3flash);
186#else
187#define prealloc_ps3flash_bounce_buffer() do { } while (0)
188#endif
189
Geoff Levandf0a1d022007-05-01 07:00:50 +1000190static int ps3_set_dabr(u64 dabr)
191{
192 enum {DABR_USER = 1, DABR_KERNEL = 2,};
193
194 return lv1_set_dabr(dabr, DABR_KERNEL | DABR_USER) ? -1 : 0;
195}
Geert Uytterhoevenfbdb3e5b2007-02-12 00:55:22 -0800196
Geoff Levandf58a9d12006-11-23 00:46:51 +0100197static void __init ps3_setup_arch(void)
198{
Geoff Levand66b44952007-01-26 19:08:21 -0800199
Geoff Levandf58a9d12006-11-23 00:46:51 +0100200 DBG(" -> %s:%d\n", __func__, __LINE__);
201
Masakazu Mokuno13228102007-06-16 07:18:48 +1000202 lv1_get_version_info(&ps3_firmware_version.raw);
203 printk(KERN_INFO "PS3 firmware version %u.%u.%u\n",
204 ps3_firmware_version.major, ps3_firmware_version.minor,
205 ps3_firmware_version.rev);
Geoff Levand66b44952007-01-26 19:08:21 -0800206
Geoff Levandf58a9d12006-11-23 00:46:51 +0100207 ps3_spu_set_platform();
Geoff Levandf58a9d12006-11-23 00:46:51 +0100208
209#ifdef CONFIG_SMP
210 smp_init_ps3();
211#endif
212
213#ifdef CONFIG_DUMMY_CONSOLE
214 conswitchp = &dummy_con;
215#endif
216
Geert Uytterhoevenfbdb3e5b2007-02-12 00:55:22 -0800217 prealloc_ps3fb_videomemory();
Geert Uytterhoeven32d73312007-06-22 00:14:20 +1000218 prealloc_ps3flash_bounce_buffer();
219
Geoff Levandf58a9d12006-11-23 00:46:51 +0100220 ppc_md.power_save = ps3_power_save;
Geoff Levand7db19422007-10-07 07:35:47 +1000221 ps3_os_area_init();
Geoff Levandf58a9d12006-11-23 00:46:51 +0100222
223 DBG(" <- %s:%d\n", __func__, __LINE__);
224}
225
226static void __init ps3_progress(char *s, unsigned short hex)
227{
228 printk("*** %04x : %s\n", hex, s ? s : "");
229}
230
231static int __init ps3_probe(void)
232{
233 unsigned long htab_size;
234 unsigned long dt_root;
235
236 DBG(" -> %s:%d\n", __func__, __LINE__);
237
238 dt_root = of_get_flat_dt_root();
Geoff Levand90657622007-06-16 08:06:51 +1000239 if (!of_flat_dt_is_compatible(dt_root, "sony,ps3"))
Geoff Levandf58a9d12006-11-23 00:46:51 +0100240 return 0;
241
Arnd Bergmanne22ba7e2006-11-27 19:18:57 +0100242 powerpc_firmware_features |= FW_FEATURE_PS3_POSSIBLE;
Geoff Levandf58a9d12006-11-23 00:46:51 +0100243
Geoff Levand01263e82007-10-07 07:35:44 +1000244 ps3_os_area_save_params();
Geoff Levandf58a9d12006-11-23 00:46:51 +0100245 ps3_mm_init();
246 ps3_mm_vas_create(&htab_size);
247 ps3_hpte_init(htab_size);
248
249 DBG(" <- %s:%d\n", __func__, __LINE__);
250 return 1;
251}
252
253#if defined(CONFIG_KEXEC)
254static void ps3_kexec_cpu_down(int crash_shutdown, int secondary)
255{
Geoff Levand9263e852007-06-16 07:19:32 +1000256 int cpu = smp_processor_id();
Geoff Levandf58a9d12006-11-23 00:46:51 +0100257
Geoff Levand9263e852007-06-16 07:19:32 +1000258 DBG(" -> %s:%d: (%d)\n", __func__, __LINE__, cpu);
Geoff Levandf58a9d12006-11-23 00:46:51 +0100259
Geoff Levand9263e852007-06-16 07:19:32 +1000260 ps3_smp_cleanup_cpu(cpu);
261 ps3_shutdown_IRQ(cpu);
Geoff Levandf58a9d12006-11-23 00:46:51 +0100262
263 DBG(" <- %s:%d\n", __func__, __LINE__);
264}
265#endif
266
267define_machine(ps3) {
268 .name = "PS3",
269 .probe = ps3_probe,
270 .setup_arch = ps3_setup_arch,
Geoff Levandf58a9d12006-11-23 00:46:51 +0100271 .init_IRQ = ps3_init_IRQ,
272 .panic = ps3_panic,
273 .get_boot_time = ps3_get_boot_time,
274 .set_rtc_time = ps3_set_rtc_time,
275 .get_rtc_time = ps3_get_rtc_time,
Geoff Levandf0a1d022007-05-01 07:00:50 +1000276 .set_dabr = ps3_set_dabr,
Geoff Levandf58a9d12006-11-23 00:46:51 +0100277 .calibrate_decr = ps3_calibrate_decr,
278 .progress = ps3_progress,
Geoff Levandfde5efd2007-02-07 12:20:01 -0800279 .restart = ps3_restart,
280 .power_off = ps3_power_off,
Geert Uytterhoevenca052f72008-03-27 11:38:31 +1100281 .halt = ps3_halt,
Geoff Levandf58a9d12006-11-23 00:46:51 +0100282#if defined(CONFIG_KEXEC)
283 .kexec_cpu_down = ps3_kexec_cpu_down,
Geoff Levand9263e852007-06-16 07:19:32 +1000284 .machine_kexec = default_machine_kexec,
Geoff Levandf58a9d12006-11-23 00:46:51 +0100285 .machine_kexec_prepare = default_machine_kexec_prepare,
286 .machine_crash_shutdown = default_machine_crash_shutdown,
287#endif
288};