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1// SPDX-License-Identifier: GPL-2.0-or-later
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
15#include <linux/kernel.h>
16#include <linux/initrd.h>
17#include <linux/init.h>
18#include <linux/console.h>
19#include <linux/seq_file.h>
20#define PCI_DEBUG
21#include <linux/pci.h>
22#undef PCI_DEBUG
23#include <linux/proc_fs.h>
24#include <linux/export.h>
25#include <linux/sched.h>
26#include <linux/sched/clock.h>
27#include <linux/start_kernel.h>
28
29#include <asm/cacheflush.h>
30#include <asm/processor.h>
31#include <asm/sections.h>
32#include <asm/pdc.h>
33#include <asm/led.h>
34#include <asm/machdep.h> /* for pa7300lc_init() proto */
35#include <asm/pdc_chassis.h>
36#include <asm/io.h>
37#include <asm/setup.h>
38#include <asm/unwind.h>
39#include <asm/smp.h>
40
41static char __initdata command_line[COMMAND_LINE_SIZE];
42
43/* Intended for ccio/sba/cpu statistics under /proc/bus/{runway|gsc} */
44struct proc_dir_entry * proc_runway_root __read_mostly = NULL;
45struct proc_dir_entry * proc_gsc_root __read_mostly = NULL;
46struct proc_dir_entry * proc_mckinley_root __read_mostly = NULL;
47
48void __init setup_cmdline(char **cmdline_p)
49{
50 extern unsigned int boot_args[];
51
52 /* Collect stuff passed in from the boot loader */
53
54 /* boot_args[0] is free-mem start, boot_args[1] is ptr to command line */
55 if (boot_args[0] < 64) {
56 /* called from hpux boot loader */
57 boot_command_line[0] = '\0';
58 } else {
59 strlcpy(boot_command_line, (char *)__va(boot_args[1]),
60 COMMAND_LINE_SIZE);
61
62#ifdef CONFIG_BLK_DEV_INITRD
63 if (boot_args[2] != 0) /* did palo pass us a ramdisk? */
64 {
65 initrd_start = (unsigned long)__va(boot_args[2]);
66 initrd_end = (unsigned long)__va(boot_args[3]);
67 }
68#endif
69 }
70
71 strcpy(command_line, boot_command_line);
72 *cmdline_p = command_line;
73}
74
75#ifdef CONFIG_PA11
76void __init dma_ops_init(void)
77{
78 switch (boot_cpu_data.cpu_type) {
79 case pcx:
80 /*
81 * We've got way too many dependencies on 1.1 semantics
82 * to support 1.0 boxes at this point.
83 */
84 panic( "PA-RISC Linux currently only supports machines that conform to\n"
85 "the PA-RISC 1.1 or 2.0 architecture specification.\n");
86
87 case pcxl2:
88 pa7300lc_init();
89 break;
90 default:
91 break;
92 }
93}
94#endif
95
96extern void collect_boot_cpu_data(void);
97
98void __init setup_arch(char **cmdline_p)
99{
100#ifdef CONFIG_64BIT
101 extern int parisc_narrow_firmware;
102#endif
103 unwind_init();
104
105 init_per_cpu(smp_processor_id()); /* Set Modes & Enable FP */
106
107#ifdef CONFIG_64BIT
108 printk(KERN_INFO "The 64-bit Kernel has started...\n");
109#else
110 printk(KERN_INFO "The 32-bit Kernel has started...\n");
111#endif
112
113 printk(KERN_INFO "Kernel default page size is %d KB. Huge pages ",
114 (int)(PAGE_SIZE / 1024));
115#ifdef CONFIG_HUGETLB_PAGE
116 printk(KERN_CONT "enabled with %d MB physical and %d MB virtual size",
117 1 << (REAL_HPAGE_SHIFT - 20), 1 << (HPAGE_SHIFT - 20));
118#else
119 printk(KERN_CONT "disabled");
120#endif
121 printk(KERN_CONT ".\n");
122
123 /*
124 * Check if initial kernel page mappings are sufficient.
125 * panic early if not, else we may access kernel functions
126 * and variables which can't be reached.
127 */
128 if (__pa((unsigned long) &_end) >= KERNEL_INITIAL_SIZE)
129 panic("KERNEL_INITIAL_ORDER too small!");
130
131 pdc_console_init();
132
133#ifdef CONFIG_64BIT
134 if(parisc_narrow_firmware) {
135 printk(KERN_INFO "Kernel is using PDC in 32-bit mode.\n");
136 }
137#endif
138 setup_pdc();
139 setup_cmdline(cmdline_p);
140 collect_boot_cpu_data();
141 do_memory_inventory(); /* probe for physical memory */
142 parisc_cache_init();
143 paging_init();
144
145#ifdef CONFIG_CHASSIS_LCD_LED
146 /* initialize the LCD/LED after boot_cpu_data is available ! */
147 led_init(); /* LCD/LED initialization */
148#endif
149
150#ifdef CONFIG_PA11
151 dma_ops_init();
152#endif
153
154#if defined(CONFIG_VT) && defined(CONFIG_DUMMY_CONSOLE)
155 conswitchp = &dummy_con; /* we use do_take_over_console() later ! */
156#endif
157
158 clear_sched_clock_stable();
159}
160
161/*
162 * Display CPU info for all CPUs.
163 * for parisc this is in processor.c
164 */
165extern int show_cpuinfo (struct seq_file *m, void *v);
166
167static void *
168c_start (struct seq_file *m, loff_t *pos)
169{
170 /* Looks like the caller will call repeatedly until we return
171 * 0, signaling EOF perhaps. This could be used to sequence
172 * through CPUs for example. Since we print all cpu info in our
173 * show_cpuinfo() disregarding 'pos' (which I assume is 'v' above)
174 * we only allow for one "position". */
175 return ((long)*pos < 1) ? (void *)1 : NULL;
176}
177
178static void *
179c_next (struct seq_file *m, void *v, loff_t *pos)
180{
181 ++*pos;
182 return c_start(m, pos);
183}
184
185static void
186c_stop (struct seq_file *m, void *v)
187{
188}
189
190const struct seq_operations cpuinfo_op = {
191 .start = c_start,
192 .next = c_next,
193 .stop = c_stop,
194 .show = show_cpuinfo
195};
196
197static void __init parisc_proc_mkdir(void)
198{
199 /*
200 ** Can't call proc_mkdir() until after proc_root_init() has been
201 ** called by start_kernel(). In other words, this code can't
202 ** live in arch/.../setup.c because start_parisc() calls
203 ** start_kernel().
204 */
205 switch (boot_cpu_data.cpu_type) {
206 case pcxl:
207 case pcxl2:
208 if (NULL == proc_gsc_root)
209 {
210 proc_gsc_root = proc_mkdir("bus/gsc", NULL);
211 }
212 break;
213 case pcxt_:
214 case pcxu:
215 case pcxu_:
216 case pcxw:
217 case pcxw_:
218 case pcxw2:
219 if (NULL == proc_runway_root)
220 {
221 proc_runway_root = proc_mkdir("bus/runway", NULL);
222 }
223 break;
224 case mako:
225 case mako2:
226 if (NULL == proc_mckinley_root)
227 {
228 proc_mckinley_root = proc_mkdir("bus/mckinley", NULL);
229 }
230 break;
231 default:
232 /* FIXME: this was added to prevent the compiler
233 * complaining about missing pcx, pcxs and pcxt
234 * I'm assuming they have neither gsc nor runway */
235 break;
236 }
237}
238
239static struct resource central_bus = {
240 .name = "Central Bus",
241 .start = F_EXTEND(0xfff80000),
242 .end = F_EXTEND(0xfffaffff),
243 .flags = IORESOURCE_MEM,
244};
245
246static struct resource local_broadcast = {
247 .name = "Local Broadcast",
248 .start = F_EXTEND(0xfffb0000),
249 .end = F_EXTEND(0xfffdffff),
250 .flags = IORESOURCE_MEM,
251};
252
253static struct resource global_broadcast = {
254 .name = "Global Broadcast",
255 .start = F_EXTEND(0xfffe0000),
256 .end = F_EXTEND(0xffffffff),
257 .flags = IORESOURCE_MEM,
258};
259
260static int __init parisc_init_resources(void)
261{
262 int result;
263
264 result = request_resource(&iomem_resource, ¢ral_bus);
265 if (result < 0) {
266 printk(KERN_ERR
267 "%s: failed to claim %s address space!\n",
268 __FILE__, central_bus.name);
269 return result;
270 }
271
272 result = request_resource(&iomem_resource, &local_broadcast);
273 if (result < 0) {
274 printk(KERN_ERR
275 "%s: failed to claim %saddress space!\n",
276 __FILE__, local_broadcast.name);
277 return result;
278 }
279
280 result = request_resource(&iomem_resource, &global_broadcast);
281 if (result < 0) {
282 printk(KERN_ERR
283 "%s: failed to claim %s address space!\n",
284 __FILE__, global_broadcast.name);
285 return result;
286 }
287
288 return 0;
289}
290
291extern void gsc_init(void);
292extern void processor_init(void);
293extern void ccio_init(void);
294extern void hppb_init(void);
295extern void dino_init(void);
296extern void iosapic_init(void);
297extern void lba_init(void);
298extern void sba_init(void);
299extern void eisa_init(void);
300
301static int __init parisc_init(void)
302{
303 u32 osid = (OS_ID_LINUX << 16);
304
305 parisc_proc_mkdir();
306 parisc_init_resources();
307 do_device_inventory(); /* probe for hardware */
308
309 parisc_pdc_chassis_init();
310
311 /* set up a new led state on systems shipped LED State panel */
312 pdc_chassis_send_status(PDC_CHASSIS_DIRECT_BSTART);
313
314 /* tell PDC we're Linux. Nevermind failure. */
315 pdc_stable_write(0x40, &osid, sizeof(osid));
316
317 /* start with known state */
318 flush_cache_all_local();
319 flush_tlb_all_local(NULL);
320
321 processor_init();
322#ifdef CONFIG_SMP
323 pr_info("CPU(s): %d out of %d %s at %d.%06d MHz online\n",
324 num_online_cpus(), num_present_cpus(),
325#else
326 pr_info("CPU(s): 1 x %s at %d.%06d MHz\n",
327#endif
328 boot_cpu_data.cpu_name,
329 boot_cpu_data.cpu_hz / 1000000,
330 boot_cpu_data.cpu_hz % 1000000 );
331
332#if defined(CONFIG_64BIT) && defined(CONFIG_SMP)
333 /* Don't serialize TLB flushes if we run on one CPU only. */
334 if (num_online_cpus() == 1)
335 pa_serialize_tlb_flushes = 0;
336#endif
337
338 apply_alternatives_all();
339 parisc_setup_cache_timing();
340
341 /* These are in a non-obvious order, will fix when we have an iotree */
342#if defined(CONFIG_IOSAPIC)
343 iosapic_init();
344#endif
345#if defined(CONFIG_IOMMU_SBA)
346 sba_init();
347#endif
348#if defined(CONFIG_PCI_LBA)
349 lba_init();
350#endif
351
352 /* CCIO before any potential subdevices */
353#if defined(CONFIG_IOMMU_CCIO)
354 ccio_init();
355#endif
356
357 /*
358 * Need to register Asp & Wax before the EISA adapters for the IRQ
359 * regions. EISA must come before PCI to be sure it gets IRQ region
360 * 0.
361 */
362#if defined(CONFIG_GSC_LASI) || defined(CONFIG_GSC_WAX)
363 gsc_init();
364#endif
365#ifdef CONFIG_EISA
366 eisa_init();
367#endif
368
369#if defined(CONFIG_HPPB)
370 hppb_init();
371#endif
372
373#if defined(CONFIG_GSC_DINO)
374 dino_init();
375#endif
376
377#ifdef CONFIG_CHASSIS_LCD_LED
378 register_led_regions(); /* register LED port info in procfs */
379#endif
380
381 return 0;
382}
383arch_initcall(parisc_init);
384
385void __init start_parisc(void)
386{
387 extern void early_trap_init(void);
388
389 int ret, cpunum;
390 struct pdc_coproc_cfg coproc_cfg;
391
392 /* check QEMU/SeaBIOS marker in PAGE0 */
393 running_on_qemu = (memcmp(&PAGE0->pad0, "SeaBIOS", 8) == 0);
394
395 cpunum = smp_processor_id();
396
397 init_cpu_topology();
398
399 set_firmware_width_unlocked();
400
401 ret = pdc_coproc_cfg_unlocked(&coproc_cfg);
402 if (ret >= 0 && coproc_cfg.ccr_functional) {
403 mtctl(coproc_cfg.ccr_functional, 10);
404
405 per_cpu(cpu_data, cpunum).fp_rev = coproc_cfg.revision;
406 per_cpu(cpu_data, cpunum).fp_model = coproc_cfg.model;
407
408 asm volatile ("fstd %fr0,8(%sp)");
409 } else {
410 panic("must have an fpu to boot linux");
411 }
412
413 early_trap_init(); /* initialize checksum of fault_vector */
414
415 start_kernel();
416 // not reached
417}
1// SPDX-License-Identifier: GPL-2.0-or-later
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
15#include <linux/kernel.h>
16#include <linux/initrd.h>
17#include <linux/init.h>
18#include <linux/console.h>
19#include <linux/seq_file.h>
20#define PCI_DEBUG
21#include <linux/pci.h>
22#undef PCI_DEBUG
23#include <linux/proc_fs.h>
24#include <linux/export.h>
25#include <linux/sched.h>
26#include <linux/sched/clock.h>
27#include <linux/start_kernel.h>
28
29#include <asm/cacheflush.h>
30#include <asm/processor.h>
31#include <asm/sections.h>
32#include <asm/pdc.h>
33#include <asm/led.h>
34#include <asm/machdep.h> /* for pa7300lc_init() proto */
35#include <asm/pdc_chassis.h>
36#include <asm/io.h>
37#include <asm/setup.h>
38#include <asm/unwind.h>
39#include <asm/smp.h>
40
41static char __initdata command_line[COMMAND_LINE_SIZE];
42
43/* Intended for ccio/sba/cpu statistics under /proc/bus/{runway|gsc} */
44struct proc_dir_entry * proc_runway_root __read_mostly = NULL;
45struct proc_dir_entry * proc_gsc_root __read_mostly = NULL;
46struct proc_dir_entry * proc_mckinley_root __read_mostly = NULL;
47
48void __init setup_cmdline(char **cmdline_p)
49{
50 extern unsigned int boot_args[];
51
52 /* Collect stuff passed in from the boot loader */
53
54 /* boot_args[0] is free-mem start, boot_args[1] is ptr to command line */
55 if (boot_args[0] < 64) {
56 /* called from hpux boot loader */
57 boot_command_line[0] = '\0';
58 } else {
59 strlcpy(boot_command_line, (char *)__va(boot_args[1]),
60 COMMAND_LINE_SIZE);
61
62#ifdef CONFIG_BLK_DEV_INITRD
63 if (boot_args[2] != 0) /* did palo pass us a ramdisk? */
64 {
65 initrd_start = (unsigned long)__va(boot_args[2]);
66 initrd_end = (unsigned long)__va(boot_args[3]);
67 }
68#endif
69 }
70
71 strcpy(command_line, boot_command_line);
72 *cmdline_p = command_line;
73}
74
75#ifdef CONFIG_PA11
76void __init dma_ops_init(void)
77{
78 switch (boot_cpu_data.cpu_type) {
79 case pcx:
80 /*
81 * We've got way too many dependencies on 1.1 semantics
82 * to support 1.0 boxes at this point.
83 */
84 panic( "PA-RISC Linux currently only supports machines that conform to\n"
85 "the PA-RISC 1.1 or 2.0 architecture specification.\n");
86
87 case pcxl2:
88 pa7300lc_init();
89 break;
90 default:
91 break;
92 }
93}
94#endif
95
96extern void collect_boot_cpu_data(void);
97
98void __init setup_arch(char **cmdline_p)
99{
100#ifdef CONFIG_64BIT
101 extern int parisc_narrow_firmware;
102#endif
103 unwind_init();
104
105 init_per_cpu(smp_processor_id()); /* Set Modes & Enable FP */
106
107#ifdef CONFIG_64BIT
108 printk(KERN_INFO "The 64-bit Kernel has started...\n");
109#else
110 printk(KERN_INFO "The 32-bit Kernel has started...\n");
111#endif
112
113 printk(KERN_INFO "Kernel default page size is %d KB. Huge pages ",
114 (int)(PAGE_SIZE / 1024));
115#ifdef CONFIG_HUGETLB_PAGE
116 printk(KERN_CONT "enabled with %d MB physical and %d MB virtual size",
117 1 << (REAL_HPAGE_SHIFT - 20), 1 << (HPAGE_SHIFT - 20));
118#else
119 printk(KERN_CONT "disabled");
120#endif
121 printk(KERN_CONT ".\n");
122
123 /*
124 * Check if initial kernel page mappings are sufficient.
125 * panic early if not, else we may access kernel functions
126 * and variables which can't be reached.
127 */
128 if (__pa((unsigned long) &_end) >= KERNEL_INITIAL_SIZE)
129 panic("KERNEL_INITIAL_ORDER too small!");
130
131 pdc_console_init();
132
133#ifdef CONFIG_64BIT
134 if(parisc_narrow_firmware) {
135 printk(KERN_INFO "Kernel is using PDC in 32-bit mode.\n");
136 }
137#endif
138 setup_pdc();
139 setup_cmdline(cmdline_p);
140 collect_boot_cpu_data();
141 do_memory_inventory(); /* probe for physical memory */
142 parisc_cache_init();
143 paging_init();
144
145#ifdef CONFIG_CHASSIS_LCD_LED
146 /* initialize the LCD/LED after boot_cpu_data is available ! */
147 led_init(); /* LCD/LED initialization */
148#endif
149
150#ifdef CONFIG_PA11
151 dma_ops_init();
152#endif
153
154 clear_sched_clock_stable();
155}
156
157/*
158 * Display CPU info for all CPUs.
159 * for parisc this is in processor.c
160 */
161extern int show_cpuinfo (struct seq_file *m, void *v);
162
163static void *
164c_start (struct seq_file *m, loff_t *pos)
165{
166 /* Looks like the caller will call repeatedly until we return
167 * 0, signaling EOF perhaps. This could be used to sequence
168 * through CPUs for example. Since we print all cpu info in our
169 * show_cpuinfo() disregarding 'pos' (which I assume is 'v' above)
170 * we only allow for one "position". */
171 return ((long)*pos < 1) ? (void *)1 : NULL;
172}
173
174static void *
175c_next (struct seq_file *m, void *v, loff_t *pos)
176{
177 ++*pos;
178 return c_start(m, pos);
179}
180
181static void
182c_stop (struct seq_file *m, void *v)
183{
184}
185
186const struct seq_operations cpuinfo_op = {
187 .start = c_start,
188 .next = c_next,
189 .stop = c_stop,
190 .show = show_cpuinfo
191};
192
193static void __init parisc_proc_mkdir(void)
194{
195 /*
196 ** Can't call proc_mkdir() until after proc_root_init() has been
197 ** called by start_kernel(). In other words, this code can't
198 ** live in arch/.../setup.c because start_parisc() calls
199 ** start_kernel().
200 */
201 switch (boot_cpu_data.cpu_type) {
202 case pcxl:
203 case pcxl2:
204 if (NULL == proc_gsc_root)
205 {
206 proc_gsc_root = proc_mkdir("bus/gsc", NULL);
207 }
208 break;
209 case pcxt_:
210 case pcxu:
211 case pcxu_:
212 case pcxw:
213 case pcxw_:
214 case pcxw2:
215 if (NULL == proc_runway_root)
216 {
217 proc_runway_root = proc_mkdir("bus/runway", NULL);
218 }
219 break;
220 case mako:
221 case mako2:
222 if (NULL == proc_mckinley_root)
223 {
224 proc_mckinley_root = proc_mkdir("bus/mckinley", NULL);
225 }
226 break;
227 default:
228 /* FIXME: this was added to prevent the compiler
229 * complaining about missing pcx, pcxs and pcxt
230 * I'm assuming they have neither gsc nor runway */
231 break;
232 }
233}
234
235static struct resource central_bus = {
236 .name = "Central Bus",
237 .start = F_EXTEND(0xfff80000),
238 .end = F_EXTEND(0xfffaffff),
239 .flags = IORESOURCE_MEM,
240};
241
242static struct resource local_broadcast = {
243 .name = "Local Broadcast",
244 .start = F_EXTEND(0xfffb0000),
245 .end = F_EXTEND(0xfffdffff),
246 .flags = IORESOURCE_MEM,
247};
248
249static struct resource global_broadcast = {
250 .name = "Global Broadcast",
251 .start = F_EXTEND(0xfffe0000),
252 .end = F_EXTEND(0xffffffff),
253 .flags = IORESOURCE_MEM,
254};
255
256static int __init parisc_init_resources(void)
257{
258 int result;
259
260 result = request_resource(&iomem_resource, ¢ral_bus);
261 if (result < 0) {
262 printk(KERN_ERR
263 "%s: failed to claim %s address space!\n",
264 __FILE__, central_bus.name);
265 return result;
266 }
267
268 result = request_resource(&iomem_resource, &local_broadcast);
269 if (result < 0) {
270 printk(KERN_ERR
271 "%s: failed to claim %saddress space!\n",
272 __FILE__, local_broadcast.name);
273 return result;
274 }
275
276 result = request_resource(&iomem_resource, &global_broadcast);
277 if (result < 0) {
278 printk(KERN_ERR
279 "%s: failed to claim %s address space!\n",
280 __FILE__, global_broadcast.name);
281 return result;
282 }
283
284 return 0;
285}
286
287extern void gsc_init(void);
288extern void processor_init(void);
289extern void ccio_init(void);
290extern void hppb_init(void);
291extern void dino_init(void);
292extern void iosapic_init(void);
293extern void lba_init(void);
294extern void sba_init(void);
295extern void eisa_init(void);
296
297static int __init parisc_init(void)
298{
299 u32 osid = (OS_ID_LINUX << 16);
300
301 parisc_proc_mkdir();
302 parisc_init_resources();
303 do_device_inventory(); /* probe for hardware */
304
305 parisc_pdc_chassis_init();
306
307 /* set up a new led state on systems shipped LED State panel */
308 pdc_chassis_send_status(PDC_CHASSIS_DIRECT_BSTART);
309
310 /* tell PDC we're Linux. Nevermind failure. */
311 pdc_stable_write(0x40, &osid, sizeof(osid));
312
313 /* start with known state */
314 flush_cache_all_local();
315 flush_tlb_all_local(NULL);
316
317 processor_init();
318#ifdef CONFIG_SMP
319 pr_info("CPU(s): %d out of %d %s at %d.%06d MHz online\n",
320 num_online_cpus(), num_present_cpus(),
321#else
322 pr_info("CPU(s): 1 x %s at %d.%06d MHz\n",
323#endif
324 boot_cpu_data.cpu_name,
325 boot_cpu_data.cpu_hz / 1000000,
326 boot_cpu_data.cpu_hz % 1000000 );
327
328#if defined(CONFIG_64BIT) && defined(CONFIG_SMP)
329 /* Don't serialize TLB flushes if we run on one CPU only. */
330 if (num_online_cpus() == 1)
331 pa_serialize_tlb_flushes = 0;
332#endif
333
334 apply_alternatives_all();
335 parisc_setup_cache_timing();
336
337 /* These are in a non-obvious order, will fix when we have an iotree */
338#if defined(CONFIG_IOSAPIC)
339 iosapic_init();
340#endif
341#if defined(CONFIG_IOMMU_SBA)
342 sba_init();
343#endif
344#if defined(CONFIG_PCI_LBA)
345 lba_init();
346#endif
347
348 /* CCIO before any potential subdevices */
349#if defined(CONFIG_IOMMU_CCIO)
350 ccio_init();
351#endif
352
353 /*
354 * Need to register Asp & Wax before the EISA adapters for the IRQ
355 * regions. EISA must come before PCI to be sure it gets IRQ region
356 * 0.
357 */
358#if defined(CONFIG_GSC_LASI) || defined(CONFIG_GSC_WAX)
359 gsc_init();
360#endif
361#ifdef CONFIG_EISA
362 eisa_init();
363#endif
364
365#if defined(CONFIG_HPPB)
366 hppb_init();
367#endif
368
369#if defined(CONFIG_GSC_DINO)
370 dino_init();
371#endif
372
373#ifdef CONFIG_CHASSIS_LCD_LED
374 register_led_regions(); /* register LED port info in procfs */
375#endif
376
377 return 0;
378}
379arch_initcall(parisc_init);
380
381void __init start_parisc(void)
382{
383 extern void early_trap_init(void);
384
385 int ret, cpunum;
386 struct pdc_coproc_cfg coproc_cfg;
387
388 /* check QEMU/SeaBIOS marker in PAGE0 */
389 running_on_qemu = (memcmp(&PAGE0->pad0, "SeaBIOS", 8) == 0);
390
391 cpunum = smp_processor_id();
392
393 init_cpu_topology();
394
395 set_firmware_width_unlocked();
396
397 ret = pdc_coproc_cfg_unlocked(&coproc_cfg);
398 if (ret >= 0 && coproc_cfg.ccr_functional) {
399 mtctl(coproc_cfg.ccr_functional, 10);
400
401 per_cpu(cpu_data, cpunum).fp_rev = coproc_cfg.revision;
402 per_cpu(cpu_data, cpunum).fp_model = coproc_cfg.model;
403
404 asm volatile ("fstd %fr0,8(%sp)");
405 } else {
406 panic("must have an fpu to boot linux");
407 }
408
409 early_trap_init(); /* initialize checksum of fault_vector */
410
411 start_kernel();
412 // not reached
413}