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authorPaul Mackerras <paulus@samba.org>2005-10-26 03:11:18 -0400
committerPaul Mackerras <paulus@samba.org>2005-10-26 03:11:18 -0400
commit03501dab035ab7da5e1373f5e130cfd6346d3f21 (patch)
tree53f8299442806612d8d2a73361b754063ce043fa /arch/powerpc
parent033ef338b6e007dc081c6282a4f2a9dd761f8cd2 (diff)
powerpc: Pull common bits of setup_{32,64}.c into setup-common.c
This creates a new arch/powerpc/kernel/setup-common.c with various bits that setup_32.c and setup_64.c had in common - functions like machine_shutdown/restart/power_off, show_cpuinfo, set_preferred_console etc. Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/kernel/Makefile2
-rw-r--r--arch/powerpc/kernel/ppc_ksyms.c2
-rw-r--r--arch/powerpc/kernel/setup-common.c412
-rw-r--r--arch/powerpc/kernel/setup_32.c249
4 files changed, 417 insertions, 248 deletions
diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index eaedb7e63315..30101762f7c0 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -32,7 +32,7 @@ extra-$(CONFIG_PPC_FPU) += fpu.o
32extra-y += vmlinux.lds 32extra-y += vmlinux.lds
33 33
34obj-y += process.o init_task.o time.o \ 34obj-y += process.o init_task.o time.o \
35 prom.o systbl.o traps.o 35 prom.o systbl.o traps.o setup-common.o
36obj-$(CONFIG_PPC32) += entry_32.o idle_6xx.o setup_32.o misc_32.o 36obj-$(CONFIG_PPC32) += entry_32.o idle_6xx.o setup_32.o misc_32.o
37obj-$(CONFIG_PPC64) += setup_64.o misc_64.o 37obj-$(CONFIG_PPC64) += setup_64.o misc_64.o
38obj-$(CONFIG_PPC_OF) += prom_init.o 38obj-$(CONFIG_PPC_OF) += prom_init.o
diff --git a/arch/powerpc/kernel/ppc_ksyms.c b/arch/powerpc/kernel/ppc_ksyms.c
index 254bf9c0b5bb..5f3a12bb8961 100644
--- a/arch/powerpc/kernel/ppc_ksyms.c
+++ b/arch/powerpc/kernel/ppc_ksyms.c
@@ -14,7 +14,6 @@
14#include <linux/pci.h> 14#include <linux/pci.h>
15#include <linux/delay.h> 15#include <linux/delay.h>
16#include <linux/ide.h> 16#include <linux/ide.h>
17#include <linux/pm.h>
18#include <linux/bitops.h> 17#include <linux/bitops.h>
19 18
20#include <asm/page.h> 19#include <asm/page.h>
@@ -231,7 +230,6 @@ EXPORT_SYMBOL(screen_info);
231#endif 230#endif
232 231
233#ifdef CONFIG_PPC32 232#ifdef CONFIG_PPC32
234EXPORT_SYMBOL(pm_power_off);
235EXPORT_SYMBOL(__delay); 233EXPORT_SYMBOL(__delay);
236EXPORT_SYMBOL(timer_interrupt); 234EXPORT_SYMBOL(timer_interrupt);
237EXPORT_SYMBOL(irq_desc); 235EXPORT_SYMBOL(irq_desc);
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
new file mode 100644
index 000000000000..d4f0a4c3b5bc
--- /dev/null
+++ b/arch/powerpc/kernel/setup-common.c
@@ -0,0 +1,412 @@
1/*
2 * Common boot and setup code for both 32-bit and 64-bit.
3 * Extracted from arch/powerpc/kernel/setup_64.c.
4 *
5 * Copyright (C) 2001 PPC64 Team, IBM Corp
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version
10 * 2 of the License, or (at your option) any later version.
11 */
12#include <linux/config.h>
13#include <linux/module.h>
14#include <linux/string.h>
15#include <linux/sched.h>
16#include <linux/init.h>
17#include <linux/kernel.h>
18#include <linux/reboot.h>
19#include <linux/delay.h>
20#include <linux/initrd.h>
21#include <linux/ide.h>
22#include <linux/seq_file.h>
23#include <linux/ioport.h>
24#include <linux/console.h>
25#include <linux/utsname.h>
26#include <linux/tty.h>
27#include <linux/root_dev.h>
28#include <linux/notifier.h>
29#include <linux/cpu.h>
30#include <linux/unistd.h>
31#include <linux/serial.h>
32#include <linux/serial_8250.h>
33#include <asm/io.h>
34#include <asm/prom.h>
35#include <asm/processor.h>
36#include <asm/pgtable.h>
37#include <asm/bootinfo.h>
38#include <asm/smp.h>
39#include <asm/elf.h>
40#include <asm/machdep.h>
41#include <asm/time.h>
42#include <asm/cputable.h>
43#include <asm/sections.h>
44#include <asm/btext.h>
45#include <asm/nvram.h>
46#include <asm/setup.h>
47#include <asm/system.h>
48#include <asm/rtas.h>
49#include <asm/iommu.h>
50#include <asm/serial.h>
51#include <asm/cache.h>
52#include <asm/page.h>
53#include <asm/mmu.h>
54#include <asm/lmb.h>
55
56#undef DEBUG
57
58#ifdef DEBUG
59#define DBG(fmt...) udbg_printf(fmt)
60#else
61#define DBG(fmt...)
62#endif
63
64/*
65 * This still seems to be needed... -- paulus
66 */
67struct screen_info screen_info = {
68 .orig_x = 0,
69 .orig_y = 25,
70 .orig_video_cols = 80,
71 .orig_video_lines = 25,
72 .orig_video_isVGA = 1,
73 .orig_video_points = 16
74};
75
76#ifdef __DO_IRQ_CANON
77/* XXX should go elsewhere eventually */
78int ppc_do_canonicalize_irqs;
79EXPORT_SYMBOL(ppc_do_canonicalize_irqs);
80#endif
81
82/* also used by kexec */
83void machine_shutdown(void)
84{
85 if (ppc_md.nvram_sync)
86 ppc_md.nvram_sync();
87}
88
89void machine_restart(char *cmd)
90{
91 machine_shutdown();
92 ppc_md.restart(cmd);
93#ifdef CONFIG_SMP
94 smp_send_stop();
95#endif
96 printk(KERN_EMERG "System Halted, OK to turn off power\n");
97 local_irq_disable();
98 while (1) ;
99}
100
101void machine_power_off(void)
102{
103 machine_shutdown();
104 ppc_md.power_off();
105#ifdef CONFIG_SMP
106 smp_send_stop();
107#endif
108 printk(KERN_EMERG "System Halted, OK to turn off power\n");
109 local_irq_disable();
110 while (1) ;
111}
112/* Used by the G5 thermal driver */
113EXPORT_SYMBOL_GPL(machine_power_off);
114
115void (*pm_power_off)(void) = machine_power_off;
116EXPORT_SYMBOL_GPL(pm_power_off);
117
118void machine_halt(void)
119{
120 machine_shutdown();
121 ppc_md.halt();
122#ifdef CONFIG_SMP
123 smp_send_stop();
124#endif
125 printk(KERN_EMERG "System Halted, OK to turn off power\n");
126 local_irq_disable();
127 while (1) ;
128}
129
130
131#ifdef CONFIG_TAU
132extern u32 cpu_temp(unsigned long cpu);
133extern u32 cpu_temp_both(unsigned long cpu);
134#endif /* CONFIG_TAU */
135
136#ifdef CONFIG_SMP
137DEFINE_PER_CPU(unsigned int, pvr);
138#endif
139
140static int show_cpuinfo(struct seq_file *m, void *v)
141{
142 unsigned long cpu_id = (unsigned long)v - 1;
143 unsigned int pvr;
144 unsigned short maj;
145 unsigned short min;
146
147 if (cpu_id == NR_CPUS) {
148#if defined(CONFIG_SMP) && defined(CONFIG_PPC32)
149 unsigned long bogosum = 0;
150 int i;
151 for (i = 0; i < NR_CPUS; ++i)
152 if (cpu_online(i))
153 bogosum += loops_per_jiffy;
154 seq_printf(m, "total bogomips\t: %lu.%02lu\n",
155 bogosum/(500000/HZ), bogosum/(5000/HZ) % 100);
156#endif /* CONFIG_SMP && CONFIG_PPC32 */
157 seq_printf(m, "timebase\t: %lu\n", ppc_tb_freq);
158
159 if (ppc_md.show_cpuinfo != NULL)
160 ppc_md.show_cpuinfo(m);
161
162 return 0;
163 }
164
165 /* We only show online cpus: disable preempt (overzealous, I
166 * knew) to prevent cpu going down. */
167 preempt_disable();
168 if (!cpu_online(cpu_id)) {
169 preempt_enable();
170 return 0;
171 }
172
173#ifdef CONFIG_SMP
174#ifdef CONFIG_PPC64 /* XXX for now */
175 pvr = per_cpu(pvr, cpu_id);
176#else
177 pvr = cpu_data[cpu_id].pvr;
178#endif
179#else
180 pvr = mfspr(SPRN_PVR);
181#endif
182 maj = (pvr >> 8) & 0xFF;
183 min = pvr & 0xFF;
184
185 seq_printf(m, "processor\t: %lu\n", cpu_id);
186 seq_printf(m, "cpu\t\t: ");
187
188 if (cur_cpu_spec->pvr_mask)
189 seq_printf(m, "%s", cur_cpu_spec->cpu_name);
190 else
191 seq_printf(m, "unknown (%08x)", pvr);
192
193#ifdef CONFIG_ALTIVEC
194 if (cpu_has_feature(CPU_FTR_ALTIVEC))
195 seq_printf(m, ", altivec supported");
196#endif /* CONFIG_ALTIVEC */
197
198 seq_printf(m, "\n");
199
200#ifdef CONFIG_TAU
201 if (cur_cpu_spec->cpu_features & CPU_FTR_TAU) {
202#ifdef CONFIG_TAU_AVERAGE
203 /* more straightforward, but potentially misleading */
204 seq_printf(m, "temperature \t: %u C (uncalibrated)\n",
205 cpu_temp(i));
206#else
207 /* show the actual temp sensor range */
208 u32 temp;
209 temp = cpu_temp_both(i);
210 seq_printf(m, "temperature \t: %u-%u C (uncalibrated)\n",
211 temp & 0xff, temp >> 16);
212#endif
213 }
214#endif /* CONFIG_TAU */
215
216 /*
217 * Assume here that all clock rates are the same in a
218 * smp system. -- Cort
219 */
220 if (ppc_proc_freq)
221 seq_printf(m, "clock\t\t: %lu.%06luMHz\n",
222 ppc_proc_freq / 1000000, ppc_proc_freq % 1000000);
223
224 if (ppc_md.show_percpuinfo != NULL)
225 ppc_md.show_percpuinfo(m, cpu_id);
226
227 /* If we are a Freescale core do a simple check so
228 * we dont have to keep adding cases in the future */
229 if (PVR_VER(pvr) & 0x8000) {
230 maj = PVR_MAJ(pvr);
231 min = PVR_MIN(pvr);
232 } else {
233 switch (PVR_VER(pvr)) {
234 case 0x0020: /* 403 family */
235 maj = PVR_MAJ(pvr) + 1;
236 min = PVR_MIN(pvr);
237 break;
238 case 0x1008: /* 740P/750P ?? */
239 maj = ((pvr >> 8) & 0xFF) - 1;
240 min = pvr & 0xFF;
241 break;
242 default:
243 maj = (pvr >> 8) & 0xFF;
244 min = pvr & 0xFF;
245 break;
246 }
247 }
248
249 seq_printf(m, "revision\t: %hd.%hd (pvr %04x %04x)\n",
250 maj, min, PVR_VER(pvr), PVR_REV(pvr));
251
252#ifdef CONFIG_PPC32
253 seq_printf(m, "bogomips\t: %lu.%02lu\n",
254 loops_per_jiffy / (500000/HZ),
255 (loops_per_jiffy / (5000/HZ)) % 100);
256#endif
257
258#ifdef CONFIG_SMP
259 seq_printf(m, "\n");
260#endif
261
262 preempt_enable();
263 return 0;
264}
265
266static void *c_start(struct seq_file *m, loff_t *pos)
267{
268 unsigned long i = *pos;
269
270 return i <= NR_CPUS ? (void *)(i + 1) : NULL;
271}
272
273static void *c_next(struct seq_file *m, void *v, loff_t *pos)
274{
275 ++*pos;
276 return c_start(m, pos);
277}
278
279static void c_stop(struct seq_file *m, void *v)
280{
281}
282
283struct seq_operations cpuinfo_op = {
284 .start =c_start,
285 .next = c_next,
286 .stop = c_stop,
287 .show = show_cpuinfo,
288};
289
290#ifdef CONFIG_PPC_MULTIPLATFORM
291static int __init set_preferred_console(void)
292{
293 struct device_node *prom_stdout = NULL;
294 char *name;
295 u32 *spd;
296 int offset = 0;
297
298 DBG(" -> set_preferred_console()\n");
299
300 /* The user has requested a console so this is already set up. */
301 if (strstr(saved_command_line, "console=")) {
302 DBG(" console was specified !\n");
303 return -EBUSY;
304 }
305
306 if (!of_chosen) {
307 DBG(" of_chosen is NULL !\n");
308 return -ENODEV;
309 }
310 /* We are getting a weird phandle from OF ... */
311 /* ... So use the full path instead */
312 name = (char *)get_property(of_chosen, "linux,stdout-path", NULL);
313 if (name == NULL) {
314 DBG(" no linux,stdout-path !\n");
315 return -ENODEV;
316 }
317 prom_stdout = of_find_node_by_path(name);
318 if (!prom_stdout) {
319 DBG(" can't find stdout package %s !\n", name);
320 return -ENODEV;
321 }
322 DBG("stdout is %s\n", prom_stdout->full_name);
323
324 name = (char *)get_property(prom_stdout, "name", NULL);
325 if (!name) {
326 DBG(" stdout package has no name !\n");
327 goto not_found;
328 }
329 spd = (u32 *)get_property(prom_stdout, "current-speed", NULL);
330
331 if (0)
332 ;
333#ifdef CONFIG_SERIAL_8250_CONSOLE
334 else if (strcmp(name, "serial") == 0) {
335 int i;
336 u32 *reg = (u32 *)get_property(prom_stdout, "reg", &i);
337 if (i > 8) {
338 switch (reg[1]) {
339 case 0x3f8:
340 offset = 0;
341 break;
342 case 0x2f8:
343 offset = 1;
344 break;
345 case 0x898:
346 offset = 2;
347 break;
348 case 0x890:
349 offset = 3;
350 break;
351 default:
352 /* We dont recognise the serial port */
353 goto not_found;
354 }
355 }
356 }
357#endif /* CONFIG_SERIAL_8250_CONSOLE */
358#ifdef CONFIG_PPC_PSERIES
359 else if (strcmp(name, "vty") == 0) {
360 u32 *reg = (u32 *)get_property(prom_stdout, "reg", NULL);
361 char *compat = (char *)get_property(prom_stdout, "compatible", NULL);
362
363 if (reg && compat && (strcmp(compat, "hvterm-protocol") == 0)) {
364 /* Host Virtual Serial Interface */
365 int offset;
366 switch (reg[0]) {
367 case 0x30000000:
368 offset = 0;
369 break;
370 case 0x30000001:
371 offset = 1;
372 break;
373 default:
374 goto not_found;
375 }
376 of_node_put(prom_stdout);
377 DBG("Found hvsi console at offset %d\n", offset);
378 return add_preferred_console("hvsi", offset, NULL);
379 } else {
380 /* pSeries LPAR virtual console */
381 of_node_put(prom_stdout);
382 DBG("Found hvc console\n");
383 return add_preferred_console("hvc", 0, NULL);
384 }
385 }
386#endif /* CONFIG_PPC_PSERIES */
387#ifdef CONFIG_SERIAL_PMACZILOG_CONSOLE
388 else if (strcmp(name, "ch-a") == 0)
389 offset = 0;
390 else if (strcmp(name, "ch-b") == 0)
391 offset = 1;
392#endif /* CONFIG_SERIAL_PMACZILOG_CONSOLE */
393 else
394 goto not_found;
395 of_node_put(prom_stdout);
396
397 DBG("Found serial console at ttyS%d\n", offset);
398
399 if (spd) {
400 static char __initdata opt[16];
401 sprintf(opt, "%d", *spd);
402 return add_preferred_console("ttyS", offset, opt);
403 } else
404 return add_preferred_console("ttyS", offset, NULL);
405
406 not_found:
407 DBG("No preferred console found !\n");
408 of_node_put(prom_stdout);
409 return -ENODEV;
410}
411console_initcall(set_preferred_console);
412#endif /* CONFIG_PPC_MULTIPLATFORM */
diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c
index c6a67c65852a..295d5c77f020 100644
--- a/arch/powerpc/kernel/setup_32.c
+++ b/arch/powerpc/kernel/setup_32.c
@@ -41,6 +41,8 @@
41#include <asm/xmon.h> 41#include <asm/xmon.h>
42#include <asm/time.h> 42#include <asm/time.h>
43 43
44#define DBG(fmt...)
45
44#if defined CONFIG_KGDB 46#if defined CONFIG_KGDB
45#include <asm/kgdb.h> 47#include <asm/kgdb.h>
46#endif 48#endif
@@ -108,168 +110,6 @@ struct screen_info screen_info = {
108}; 110};
109#endif /* CONFIG_VGA_CONSOLE || CONFIG_FB_VGA16 || CONFIG_FB_VESA */ 111#endif /* CONFIG_VGA_CONSOLE || CONFIG_FB_VGA16 || CONFIG_FB_VESA */
110 112
111void machine_restart(char *cmd)
112{
113#ifdef CONFIG_NVRAM
114 nvram_sync();
115#endif
116 ppc_md.restart(cmd);
117}
118
119void machine_power_off(void)
120{
121#ifdef CONFIG_NVRAM
122 nvram_sync();
123#endif
124 ppc_md.power_off();
125}
126
127void machine_halt(void)
128{
129#ifdef CONFIG_NVRAM
130 nvram_sync();
131#endif
132 ppc_md.halt();
133}
134
135void (*pm_power_off)(void) = machine_power_off;
136
137#ifdef CONFIG_TAU
138extern u32 cpu_temp(unsigned long cpu);
139extern u32 cpu_temp_both(unsigned long cpu);
140#endif /* CONFIG_TAU */
141
142int show_cpuinfo(struct seq_file *m, void *v)
143{
144 int i = (int) v - 1;
145 unsigned int pvr;
146 unsigned short maj, min;
147 unsigned long lpj;
148
149 if (i >= NR_CPUS) {
150 /* Show summary information */
151#ifdef CONFIG_SMP
152 unsigned long bogosum = 0;
153 for (i = 0; i < NR_CPUS; ++i)
154 if (cpu_online(i))
155 bogosum += cpu_data[i].loops_per_jiffy;
156 seq_printf(m, "total bogomips\t: %lu.%02lu\n",
157 bogosum/(500000/HZ), bogosum/(5000/HZ) % 100);
158#endif /* CONFIG_SMP */
159
160 if (ppc_md.show_cpuinfo != NULL)
161 ppc_md.show_cpuinfo(m);
162 return 0;
163 }
164
165#ifdef CONFIG_SMP
166 if (!cpu_online(i))
167 return 0;
168 pvr = cpu_data[i].pvr;
169 lpj = cpu_data[i].loops_per_jiffy;
170#else
171 pvr = mfspr(SPRN_PVR);
172 lpj = loops_per_jiffy;
173#endif
174
175 seq_printf(m, "processor\t: %d\n", i);
176 seq_printf(m, "cpu\t\t: ");
177
178 if (cur_cpu_spec->pvr_mask)
179 seq_printf(m, "%s", cur_cpu_spec->cpu_name);
180 else
181 seq_printf(m, "unknown (%08x)", pvr);
182#ifdef CONFIG_ALTIVEC
183 if (cur_cpu_spec->cpu_features & CPU_FTR_ALTIVEC)
184 seq_printf(m, ", altivec supported");
185#endif
186 seq_printf(m, "\n");
187
188#ifdef CONFIG_TAU
189 if (cur_cpu_spec->cpu_features & CPU_FTR_TAU) {
190#ifdef CONFIG_TAU_AVERAGE
191 /* more straightforward, but potentially misleading */
192 seq_printf(m, "temperature \t: %u C (uncalibrated)\n",
193 cpu_temp(i));
194#else
195 /* show the actual temp sensor range */
196 u32 temp;
197 temp = cpu_temp_both(i);
198 seq_printf(m, "temperature \t: %u-%u C (uncalibrated)\n",
199 temp & 0xff, temp >> 16);
200#endif
201 }
202#endif /* CONFIG_TAU */
203
204 if (ppc_md.show_percpuinfo != NULL)
205 ppc_md.show_percpuinfo(m, i);
206
207 /* If we are a Freescale core do a simple check so
208 * we dont have to keep adding cases in the future */
209 if (PVR_VER(pvr) & 0x8000) {
210 maj = PVR_MAJ(pvr);
211 min = PVR_MIN(pvr);
212 } else {
213 switch (PVR_VER(pvr)) {
214 case 0x0020: /* 403 family */
215 maj = PVR_MAJ(pvr) + 1;
216 min = PVR_MIN(pvr);
217 break;
218 case 0x1008: /* 740P/750P ?? */
219 maj = ((pvr >> 8) & 0xFF) - 1;
220 min = pvr & 0xFF;
221 break;
222 default:
223 maj = (pvr >> 8) & 0xFF;
224 min = pvr & 0xFF;
225 break;
226 }
227 }
228
229 /*
230 * Assume here that all clock rates are the same in a
231 * smp system. -- Cort
232 */
233 seq_printf(m, "clock\t\t: %lu.%06luMHz\n", ppc_proc_freq / 1000000,
234 ppc_proc_freq % 1000000);
235
236 seq_printf(m, "revision\t: %hd.%hd (pvr %04x %04x)\n",
237 maj, min, PVR_VER(pvr), PVR_REV(pvr));
238
239 seq_printf(m, "bogomips\t: %lu.%02lu\n",
240 lpj / (500000/HZ), (lpj / (5000/HZ)) % 100);
241
242#ifdef CONFIG_SMP
243 seq_printf(m, "\n");
244#endif
245
246 return 0;
247}
248
249static void *c_start(struct seq_file *m, loff_t *pos)
250{
251 int i = *pos;
252
253 return i <= NR_CPUS? (void *) (i + 1): NULL;
254}
255
256static void *c_next(struct seq_file *m, void *v, loff_t *pos)
257{
258 ++*pos;
259 return c_start(m, pos);
260}
261
262static void c_stop(struct seq_file *m, void *v)
263{
264}
265
266struct seq_operations cpuinfo_op = {
267 .start =c_start,
268 .next = c_next,
269 .stop = c_stop,
270 .show = show_cpuinfo,
271};
272
273/* 113/*
274 * We're called here very early in the boot. We determine the machine 114 * We're called here very early in the boot. We determine the machine
275 * type and call the appropriate low-level setup functions. 115 * type and call the appropriate low-level setup functions.
@@ -297,30 +137,6 @@ unsigned long __init early_init(unsigned long dt_ptr)
297 return KERNELBASE + offset; 137 return KERNELBASE + offset;
298} 138}
299 139
300#ifdef CONFIG_PPC_OF
301void __init
302intuit_machine_type(void)
303{
304 char *model;
305 struct device_node *root;
306
307 /* ask the OF info if we're a chrp or pmac */
308 root = find_path_device("/");
309 if (root != 0) {
310 /* assume pmac unless proven to be chrp -- Cort */
311 _machine = _MACH_Pmac;
312 model = get_property(root, "device_type", NULL);
313 if (model && !strncmp("chrp", model, 4))
314 _machine = _MACH_chrp;
315 else {
316 model = get_property(root, "model", NULL);
317 if (model && !strncmp(model, "IBM", 3))
318 _machine = _MACH_chrp;
319 }
320 }
321}
322#endif
323
324#ifdef CONFIG_PPC_MULTIPLATFORM 140#ifdef CONFIG_PPC_MULTIPLATFORM
325/* 141/*
326 * The PPC_MULTIPLATFORM version of platform_init... 142 * The PPC_MULTIPLATFORM version of platform_init...
@@ -362,64 +178,7 @@ void __init platform_init(void)
362#endif 178#endif
363 } 179 }
364} 180}
365 181#endif
366#ifdef CONFIG_SERIAL_CORE_CONSOLE
367extern char *of_stdout_device;
368
369static int __init set_preferred_console(void)
370{
371 struct device_node *prom_stdout;
372 char *name;
373 int offset = 0;
374
375 if (of_stdout_device == NULL)
376 return -ENODEV;
377
378 /* The user has requested a console so this is already set up. */
379 if (strstr(saved_command_line, "console="))
380 return -EBUSY;
381
382 prom_stdout = find_path_device(of_stdout_device);
383 if (!prom_stdout)
384 return -ENODEV;
385
386 name = (char *)get_property(prom_stdout, "name", NULL);
387 if (!name)
388 return -ENODEV;
389
390 if (strcmp(name, "serial") == 0) {
391 int i;
392 u32 *reg = (u32 *)get_property(prom_stdout, "reg", &i);
393 if (i > 8) {
394 switch (reg[1]) {
395 case 0x3f8:
396 offset = 0;
397 break;
398 case 0x2f8:
399 offset = 1;
400 break;
401 case 0x898:
402 offset = 2;
403 break;
404 case 0x890:
405 offset = 3;
406 break;
407 default:
408 /* We dont recognise the serial port */
409 return -ENODEV;
410 }
411 }
412 } else if (strcmp(name, "ch-a") == 0)
413 offset = 0;
414 else if (strcmp(name, "ch-b") == 0)
415 offset = 1;
416 else
417 return -ENODEV;
418 return add_preferred_console("ttyS", offset, NULL);
419}
420console_initcall(set_preferred_console);
421#endif /* CONFIG_SERIAL_CORE_CONSOLE */
422#endif /* CONFIG_PPC_MULTIPLATFORM */
423 182
424/* 183/*
425 * Find out what kind of machine we're on and save any data we need 184 * Find out what kind of machine we're on and save any data we need
@@ -545,7 +304,7 @@ void __init setup_arch(char **cmdline_p)
545 init_boot_display(); 304 init_boot_display();
546#endif 305#endif
547 306
548#ifdef CONFIG_PPC_MULTIPLATFORM 307#ifdef CONFIG_PPC_PMAC
549 /* This could be called "early setup arch", it must be done 308 /* This could be called "early setup arch", it must be done
550 * now because xmon need it 309 * now because xmon need it
551 */ 310 */