aboutsummaryrefslogtreecommitdiffstats
path: root/arch/parisc/kernel/setup.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/parisc/kernel/setup.c
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'arch/parisc/kernel/setup.c')
-rw-r--r--arch/parisc/kernel/setup.c368
1 files changed, 368 insertions, 0 deletions
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
new file mode 100644
index 000000000000..73e9c34b0948
--- /dev/null
+++ b/arch/parisc/kernel/setup.c
@@ -0,0 +1,368 @@
1/* $Id: setup.c,v 1.8 2000/02/02 04:42:38 prumpf Exp $
2 *
3 * Initial setup-routines for HP 9000 based hardware.
4 *
5 * Copyright (C) 1991, 1992, 1995 Linus Torvalds
6 * Modifications for PA-RISC (C) 1999 Helge Deller <deller@gmx.de>
7 * Modifications copyright 1999 SuSE GmbH (Philipp Rumpf)
8 * Modifications copyright 2000 Martin K. Petersen <mkp@mkp.net>
9 * Modifications copyright 2000 Philipp Rumpf <prumpf@tux.org>
10 * Modifications copyright 2001 Ryan Bradetich <rbradetich@uswest.net>
11 *
12 * Initial PA-RISC Version: 04-23-1999 by Helge Deller
13 *
14 * This program is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License as published by
16 * the Free Software Foundation; either version 2, or (at your option)
17 * any later version.
18 *
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
23 *
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
27 *
28 */
29
30#include <linux/config.h>
31#include <linux/kernel.h>
32#include <linux/initrd.h>
33#include <linux/init.h>
34#include <linux/console.h>
35#include <linux/seq_file.h>
36#define PCI_DEBUG
37#include <linux/pci.h>
38#undef PCI_DEBUG
39#include <linux/proc_fs.h>
40
41#include <asm/processor.h>
42#include <asm/pdc.h>
43#include <asm/led.h>
44#include <asm/machdep.h> /* for pa7300lc_init() proto */
45#include <asm/pdc_chassis.h>
46#include <asm/io.h>
47#include <asm/setup.h>
48
49char command_line[COMMAND_LINE_SIZE];
50
51/* Intended for ccio/sba/cpu statistics under /proc/bus/{runway|gsc} */
52struct proc_dir_entry * proc_runway_root = NULL;
53struct proc_dir_entry * proc_gsc_root = NULL;
54struct proc_dir_entry * proc_mckinley_root = NULL;
55
56#if !defined(CONFIG_PA20) && (defined(CONFIG_IOMMU_CCIO) || defined(CONFIG_IOMMU_SBA))
57int parisc_bus_is_phys = 1; /* Assume no IOMMU is present */
58EXPORT_SYMBOL(parisc_bus_is_phys);
59#endif
60
61/* This sets the vmerge boundary and size, it's here because it has to
62 * be available on all platforms (zero means no-virtual merging) */
63unsigned long parisc_vmerge_boundary = 0;
64unsigned long parisc_vmerge_max_size = 0;
65
66void __init setup_cmdline(char **cmdline_p)
67{
68 extern unsigned int boot_args[];
69
70 /* Collect stuff passed in from the boot loader */
71
72 /* boot_args[0] is free-mem start, boot_args[1] is ptr to command line */
73 if (boot_args[0] < 64) {
74 /* called from hpux boot loader */
75 saved_command_line[0] = '\0';
76 } else {
77 strcpy(saved_command_line, (char *)__va(boot_args[1]));
78
79#ifdef CONFIG_BLK_DEV_INITRD
80 if (boot_args[2] != 0) /* did palo pass us a ramdisk? */
81 {
82 initrd_start = (unsigned long)__va(boot_args[2]);
83 initrd_end = (unsigned long)__va(boot_args[3]);
84 }
85#endif
86 }
87
88 strcpy(command_line, saved_command_line);
89 *cmdline_p = command_line;
90}
91
92#ifdef CONFIG_PA11
93void __init dma_ops_init(void)
94{
95 switch (boot_cpu_data.cpu_type) {
96 case pcx:
97 /*
98 * We've got way too many dependencies on 1.1 semantics
99 * to support 1.0 boxes at this point.
100 */
101 panic( "PA-RISC Linux currently only supports machines that conform to\n"
102 "the PA-RISC 1.1 or 2.0 architecture specification.\n");
103
104 case pcxs:
105 case pcxt:
106 hppa_dma_ops = &pcx_dma_ops;
107 break;
108 case pcxl2:
109 pa7300lc_init();
110 case pcxl: /* falls through */
111 hppa_dma_ops = &pcxl_dma_ops;
112 break;
113 default:
114 break;
115 }
116}
117#endif
118
119extern int init_per_cpu(int cpuid);
120extern void collect_boot_cpu_data(void);
121
122void __init setup_arch(char **cmdline_p)
123{
124#ifdef __LP64__
125 extern int parisc_narrow_firmware;
126#endif
127
128 init_per_cpu(smp_processor_id()); /* Set Modes & Enable FP */
129
130#ifdef __LP64__
131 printk(KERN_INFO "The 64-bit Kernel has started...\n");
132#else
133 printk(KERN_INFO "The 32-bit Kernel has started...\n");
134#endif
135
136 pdc_console_init();
137
138#ifdef __LP64__
139 if(parisc_narrow_firmware) {
140 printk(KERN_INFO "Kernel is using PDC in 32-bit mode.\n");
141 }
142#endif
143 setup_pdc();
144 setup_cmdline(cmdline_p);
145 collect_boot_cpu_data();
146 do_memory_inventory(); /* probe for physical memory */
147 parisc_cache_init();
148 paging_init();
149
150#ifdef CONFIG_CHASSIS_LCD_LED
151 /* initialize the LCD/LED after boot_cpu_data is available ! */
152 led_init(); /* LCD/LED initialization */
153#endif
154
155#ifdef CONFIG_PA11
156 dma_ops_init();
157#endif
158
159#if defined(CONFIG_VT) && defined(CONFIG_DUMMY_CONSOLE)
160 conswitchp = &dummy_con; /* we use take_over_console() later ! */
161#endif
162
163}
164
165/*
166 * Display cpu info for all cpu's.
167 * for parisc this is in processor.c
168 */
169extern int show_cpuinfo (struct seq_file *m, void *v);
170
171static void *
172c_start (struct seq_file *m, loff_t *pos)
173{
174 /* Looks like the caller will call repeatedly until we return
175 * 0, signaling EOF perhaps. This could be used to sequence
176 * through CPUs for example. Since we print all cpu info in our
177 * show_cpuinfo() disregarding 'pos' (which I assume is 'v' above)
178 * we only allow for one "position". */
179 return ((long)*pos < 1) ? (void *)1 : NULL;
180}
181
182static void *
183c_next (struct seq_file *m, void *v, loff_t *pos)
184{
185 ++*pos;
186 return c_start(m, pos);
187}
188
189static void
190c_stop (struct seq_file *m, void *v)
191{
192}
193
194struct seq_operations cpuinfo_op = {
195 .start = c_start,
196 .next = c_next,
197 .stop = c_stop,
198 .show = show_cpuinfo
199};
200
201static void __init parisc_proc_mkdir(void)
202{
203 /*
204 ** Can't call proc_mkdir() until after proc_root_init() has been
205 ** called by start_kernel(). In other words, this code can't
206 ** live in arch/.../setup.c because start_parisc() calls
207 ** start_kernel().
208 */
209 switch (boot_cpu_data.cpu_type) {
210 case pcxl:
211 case pcxl2:
212 if (NULL == proc_gsc_root)
213 {
214 proc_gsc_root = proc_mkdir("bus/gsc", NULL);
215 }
216 break;
217 case pcxt_:
218 case pcxu:
219 case pcxu_:
220 case pcxw:
221 case pcxw_:
222 case pcxw2:
223 if (NULL == proc_runway_root)
224 {
225 proc_runway_root = proc_mkdir("bus/runway", NULL);
226 }
227 break;
228 case mako:
229 if (NULL == proc_mckinley_root)
230 {
231 proc_mckinley_root = proc_mkdir("bus/mckinley", NULL);
232 }
233 break;
234 default:
235 /* FIXME: this was added to prevent the compiler
236 * complaining about missing pcx, pcxs and pcxt
237 * I'm assuming they have neither gsc nor runway */
238 break;
239 }
240}
241
242static struct resource central_bus = {
243 .name = "Central Bus",
244 .start = F_EXTEND(0xfff80000),
245 .end = F_EXTEND(0xfffaffff),
246 .flags = IORESOURCE_MEM,
247};
248
249static struct resource local_broadcast = {
250 .name = "Local Broadcast",
251 .start = F_EXTEND(0xfffb0000),
252 .end = F_EXTEND(0xfffdffff),
253 .flags = IORESOURCE_MEM,
254};
255
256static struct resource global_broadcast = {
257 .name = "Global Broadcast",
258 .start = F_EXTEND(0xfffe0000),
259 .end = F_EXTEND(0xffffffff),
260 .flags = IORESOURCE_MEM,
261};
262
263static int __init parisc_init_resources(void)
264{
265 int result;
266
267 result = request_resource(&iomem_resource, &central_bus);
268 if (result < 0) {
269 printk(KERN_ERR
270 "%s: failed to claim %s address space!\n",
271 __FILE__, central_bus.name);
272 return result;
273 }
274
275 result = request_resource(&iomem_resource, &local_broadcast);
276 if (result < 0) {
277 printk(KERN_ERR
278 "%s: failed to claim %saddress space!\n",
279 __FILE__, local_broadcast.name);
280 return result;
281 }
282
283 result = request_resource(&iomem_resource, &global_broadcast);
284 if (result < 0) {
285 printk(KERN_ERR
286 "%s: failed to claim %s address space!\n",
287 __FILE__, global_broadcast.name);
288 return result;
289 }
290
291 return 0;
292}
293
294extern void gsc_init(void);
295extern void processor_init(void);
296extern void ccio_init(void);
297extern void hppb_init(void);
298extern void dino_init(void);
299extern void iosapic_init(void);
300extern void lba_init(void);
301extern void sba_init(void);
302extern void eisa_init(void);
303
304static int __init parisc_init(void)
305{
306 parisc_proc_mkdir();
307 parisc_init_resources();
308 do_device_inventory(); /* probe for hardware */
309
310 parisc_pdc_chassis_init();
311
312 /* set up a new led state on systems shipped LED State panel */
313 pdc_chassis_send_status(PDC_CHASSIS_DIRECT_BSTART);
314
315 processor_init();
316 printk(KERN_INFO "CPU(s): %d x %s at %d.%06d MHz\n",
317 boot_cpu_data.cpu_count,
318 boot_cpu_data.cpu_name,
319 boot_cpu_data.cpu_hz / 1000000,
320 boot_cpu_data.cpu_hz % 1000000 );
321
322 parisc_setup_cache_timing();
323
324 /* These are in a non-obvious order, will fix when we have an iotree */
325#if defined(CONFIG_IOSAPIC)
326 iosapic_init();
327#endif
328#if defined(CONFIG_IOMMU_SBA)
329 sba_init();
330#endif
331#if defined(CONFIG_PCI_LBA)
332 lba_init();
333#endif
334
335 /* CCIO before any potential subdevices */
336#if defined(CONFIG_IOMMU_CCIO)
337 ccio_init();
338#endif
339
340 /*
341 * Need to register Asp & Wax before the EISA adapters for the IRQ
342 * regions. EISA must come before PCI to be sure it gets IRQ region
343 * 0.
344 */
345#if defined(CONFIG_GSC_LASI) || defined(CONFIG_GSC_WAX)
346 gsc_init();
347#endif
348#ifdef CONFIG_EISA
349 eisa_init();
350#endif
351
352#if defined(CONFIG_HPPB)
353 hppb_init();
354#endif
355
356#if defined(CONFIG_GSC_DINO)
357 dino_init();
358#endif
359
360#ifdef CONFIG_CHASSIS_LCD_LED
361 register_led_regions(); /* register LED port info in procfs */
362#endif
363
364 return 0;
365}
366
367arch_initcall(parisc_init);
368