2 * PS3 platform setup routines.
4 * Copyright (C) 2006 Sony Computer Entertainment Inc.
5 * Copyright 2006 Sony Corp.
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.
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.
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
21 #include <linux/kernel.h>
22 #include <linux/delay.h>
24 #include <linux/root_dev.h>
25 #include <linux/console.h>
26 #include <linux/export.h>
27 #include <linux/bootmem.h>
29 #include <asm/machdep.h>
30 #include <asm/firmware.h>
32 #include <asm/iommu.h>
35 #include <asm/lv1call.h>
36 #include <asm/ps3gpu.h>
41 #define DBG udbg_printf
46 /* mutex synchronizing GPU accesses and video mode changes */
47 DEFINE_MUTEX(ps3_gpu_mutex);
48 EXPORT_SYMBOL_GPL(ps3_gpu_mutex);
50 static union ps3_firmware_version ps3_firmware_version;
52 void ps3_get_firmware_version(union ps3_firmware_version *v)
54 *v = ps3_firmware_version;
56 EXPORT_SYMBOL_GPL(ps3_get_firmware_version);
58 int ps3_compare_firmware_version(u16 major, u16 minor, u16 rev)
60 union ps3_firmware_version x;
67 return (ps3_firmware_version.raw > x.raw) -
68 (ps3_firmware_version.raw < x.raw);
70 EXPORT_SYMBOL_GPL(ps3_compare_firmware_version);
72 static void ps3_power_save(void)
75 * lv1_pause() puts the PPE thread into inactive state until an
76 * irq on an unmasked plug exists. MSR[EE] has no effect.
77 * flags: 0 = wake on DEC interrupt, 1 = ignore DEC interrupt.
83 static void ps3_restart(char *cmd)
85 DBG("%s:%d cmd '%s'\n", __func__, __LINE__, cmd);
88 ps3_sys_manager_restart(); /* never returns */
91 static void ps3_power_off(void)
93 DBG("%s:%d\n", __func__, __LINE__);
96 ps3_sys_manager_power_off(); /* never returns */
99 static void ps3_halt(void)
101 DBG("%s:%d\n", __func__, __LINE__);
104 ps3_sys_manager_halt(); /* never returns */
107 static void ps3_panic(char *str)
109 DBG("%s:%d %s\n", __func__, __LINE__, str);
113 printk(" System does not reboot automatically.\n");
114 printk(" Please press POWER button.\n");
121 #if defined(CONFIG_FB_PS3) || defined(CONFIG_FB_PS3_MODULE) || \
122 defined(CONFIG_PS3_FLASH) || defined(CONFIG_PS3_FLASH_MODULE)
123 static void __init prealloc(struct ps3_prealloc *p)
128 p->address = __alloc_bootmem(p->size, p->align, __pa(MAX_DMA_ADDRESS));
130 printk(KERN_ERR "%s: Cannot allocate %s\n", __func__,
135 printk(KERN_INFO "%s: %lu bytes at %p\n", p->name, p->size,
140 #if defined(CONFIG_FB_PS3) || defined(CONFIG_FB_PS3_MODULE)
141 struct ps3_prealloc ps3fb_videomemory = {
142 .name = "ps3fb videomemory",
143 .size = CONFIG_FB_PS3_DEFAULT_SIZE_M*1024*1024,
144 .align = 1024*1024 /* the GPU requires 1 MiB alignment */
146 EXPORT_SYMBOL_GPL(ps3fb_videomemory);
147 #define prealloc_ps3fb_videomemory() prealloc(&ps3fb_videomemory)
149 static int __init early_parse_ps3fb(char *p)
154 ps3fb_videomemory.size = _ALIGN_UP(memparse(p, &p),
155 ps3fb_videomemory.align);
158 early_param("ps3fb", early_parse_ps3fb);
160 #define prealloc_ps3fb_videomemory() do { } while (0)
163 #if defined(CONFIG_PS3_FLASH) || defined(CONFIG_PS3_FLASH_MODULE)
164 struct ps3_prealloc ps3flash_bounce_buffer = {
165 .name = "ps3flash bounce buffer",
169 EXPORT_SYMBOL_GPL(ps3flash_bounce_buffer);
170 #define prealloc_ps3flash_bounce_buffer() prealloc(&ps3flash_bounce_buffer)
172 static int __init early_parse_ps3flash(char *p)
177 if (!strcmp(p, "off"))
178 ps3flash_bounce_buffer.size = 0;
182 early_param("ps3flash", early_parse_ps3flash);
184 #define prealloc_ps3flash_bounce_buffer() do { } while (0)
187 static int ps3_set_dabr(unsigned long dabr)
189 enum {DABR_USER = 1, DABR_KERNEL = 2,};
191 return lv1_set_dabr(dabr, DABR_KERNEL | DABR_USER) ? -1 : 0;
194 static void __init ps3_setup_arch(void)
197 DBG(" -> %s:%d\n", __func__, __LINE__);
199 lv1_get_version_info(&ps3_firmware_version.raw);
200 printk(KERN_INFO "PS3 firmware version %u.%u.%u\n",
201 ps3_firmware_version.major, ps3_firmware_version.minor,
202 ps3_firmware_version.rev);
204 ps3_spu_set_platform();
210 #ifdef CONFIG_DUMMY_CONSOLE
211 conswitchp = &dummy_con;
214 prealloc_ps3fb_videomemory();
215 prealloc_ps3flash_bounce_buffer();
217 ppc_md.power_save = ps3_power_save;
220 DBG(" <- %s:%d\n", __func__, __LINE__);
223 static void __init ps3_progress(char *s, unsigned short hex)
225 printk("*** %04x : %s\n", hex, s ? s : "");
228 static int __init ps3_probe(void)
230 unsigned long htab_size;
231 unsigned long dt_root;
233 DBG(" -> %s:%d\n", __func__, __LINE__);
235 dt_root = of_get_flat_dt_root();
236 if (!of_flat_dt_is_compatible(dt_root, "sony,ps3"))
239 powerpc_firmware_features |= FW_FEATURE_PS3_POSSIBLE;
241 ps3_os_area_save_params();
243 ps3_mm_vas_create(&htab_size);
244 ps3_hpte_init(htab_size);
246 DBG(" <- %s:%d\n", __func__, __LINE__);
250 #if defined(CONFIG_KEXEC)
251 static void ps3_kexec_cpu_down(int crash_shutdown, int secondary)
253 int cpu = smp_processor_id();
255 DBG(" -> %s:%d: (%d)\n", __func__, __LINE__, cpu);
257 ps3_smp_cleanup_cpu(cpu);
258 ps3_shutdown_IRQ(cpu);
260 DBG(" <- %s:%d\n", __func__, __LINE__);
264 define_machine(ps3) {
267 .setup_arch = ps3_setup_arch,
268 .init_IRQ = ps3_init_IRQ,
270 .get_boot_time = ps3_get_boot_time,
271 .set_dabr = ps3_set_dabr,
272 .calibrate_decr = ps3_calibrate_decr,
273 .progress = ps3_progress,
274 .restart = ps3_restart,
275 .power_off = ps3_power_off,
277 #if defined(CONFIG_KEXEC)
278 .kexec_cpu_down = ps3_kexec_cpu_down,