ia64/linux-2.6.18-xen.hg

view arch/m68k/apollo/config.c @ 452:c7ed6fe5dca0

kexec: dont initialise regions in reserve_memory()

There is no need to initialise efi_memmap_res and boot_param_res in
reserve_memory() for the initial xen domain as it is done in
machine_kexec_setup_resources() using values from the kexec hypercall.

Signed-off-by: Simon Horman <horms@verge.net.au>
author Keir Fraser <keir.fraser@citrix.com>
date Thu Feb 28 10:55:18 2008 +0000 (2008-02-28)
parents 831230e53067
children
line source
1 #include <linux/types.h>
2 #include <linux/kernel.h>
3 #include <linux/mm.h>
4 #include <linux/tty.h>
5 #include <linux/console.h>
6 #include <linux/rtc.h>
7 #include <linux/vt_kern.h>
8 #include <linux/interrupt.h>
10 #include <asm/setup.h>
11 #include <asm/bootinfo.h>
12 #include <asm/system.h>
13 #include <asm/pgtable.h>
14 #include <asm/apollohw.h>
15 #include <asm/irq.h>
16 #include <asm/rtc.h>
17 #include <asm/machdep.h>
19 u_long sio01_physaddr;
20 u_long sio23_physaddr;
21 u_long rtc_physaddr;
22 u_long pica_physaddr;
23 u_long picb_physaddr;
24 u_long cpuctrl_physaddr;
25 u_long timer_physaddr;
26 u_long apollo_model;
28 extern void dn_sched_init(irqreturn_t (*handler)(int,void *,struct pt_regs *));
29 extern void dn_init_IRQ(void);
30 extern unsigned long dn_gettimeoffset(void);
31 extern int dn_dummy_hwclk(int, struct rtc_time *);
32 extern int dn_dummy_set_clock_mmss(unsigned long);
33 extern void dn_dummy_reset(void);
34 extern void dn_dummy_waitbut(void);
35 extern struct fb_info *dn_fb_init(long *);
36 extern void dn_dummy_debug_init(void);
37 extern irqreturn_t dn_process_int(int irq, struct pt_regs *fp);
38 #ifdef CONFIG_HEARTBEAT
39 static void dn_heartbeat(int on);
40 #endif
41 static irqreturn_t dn_timer_int(int irq,void *, struct pt_regs *);
42 static void dn_get_model(char *model);
43 static const char *apollo_models[] = {
44 [APOLLO_DN3000-APOLLO_DN3000] = "DN3000 (Otter)",
45 [APOLLO_DN3010-APOLLO_DN3000] = "DN3010 (Otter)",
46 [APOLLO_DN3500-APOLLO_DN3000] = "DN3500 (Cougar II)",
47 [APOLLO_DN4000-APOLLO_DN3000] = "DN4000 (Mink)",
48 [APOLLO_DN4500-APOLLO_DN3000] = "DN4500 (Roadrunner)"
49 };
51 int apollo_parse_bootinfo(const struct bi_record *record) {
53 int unknown = 0;
54 const unsigned long *data = record->data;
56 switch(record->tag) {
57 case BI_APOLLO_MODEL:
58 apollo_model=*data;
59 break;
61 default:
62 unknown=1;
63 }
65 return unknown;
66 }
68 void dn_setup_model(void) {
71 printk("Apollo hardware found: ");
72 printk("[%s]\n", apollo_models[apollo_model - APOLLO_DN3000]);
74 switch(apollo_model) {
75 case APOLLO_UNKNOWN:
76 panic("Unknown apollo model");
77 break;
78 case APOLLO_DN3000:
79 case APOLLO_DN3010:
80 sio01_physaddr=SAU8_SIO01_PHYSADDR;
81 rtc_physaddr=SAU8_RTC_PHYSADDR;
82 pica_physaddr=SAU8_PICA;
83 picb_physaddr=SAU8_PICB;
84 cpuctrl_physaddr=SAU8_CPUCTRL;
85 timer_physaddr=SAU8_TIMER;
86 break;
87 case APOLLO_DN4000:
88 sio01_physaddr=SAU7_SIO01_PHYSADDR;
89 sio23_physaddr=SAU7_SIO23_PHYSADDR;
90 rtc_physaddr=SAU7_RTC_PHYSADDR;
91 pica_physaddr=SAU7_PICA;
92 picb_physaddr=SAU7_PICB;
93 cpuctrl_physaddr=SAU7_CPUCTRL;
94 timer_physaddr=SAU7_TIMER;
95 break;
96 case APOLLO_DN4500:
97 panic("Apollo model not yet supported");
98 break;
99 case APOLLO_DN3500:
100 sio01_physaddr=SAU7_SIO01_PHYSADDR;
101 sio23_physaddr=SAU7_SIO23_PHYSADDR;
102 rtc_physaddr=SAU7_RTC_PHYSADDR;
103 pica_physaddr=SAU7_PICA;
104 picb_physaddr=SAU7_PICB;
105 cpuctrl_physaddr=SAU7_CPUCTRL;
106 timer_physaddr=SAU7_TIMER;
107 break;
108 default:
109 panic("Undefined apollo model");
110 break;
111 }
114 }
116 int dn_serial_console_wait_key(struct console *co) {
118 while(!(sio01.srb_csrb & 1))
119 barrier();
120 return sio01.rhrb_thrb;
121 }
123 void dn_serial_console_write (struct console *co, const char *str,unsigned int count)
124 {
125 while(count--) {
126 if (*str == '\n') {
127 sio01.rhrb_thrb = (unsigned char)'\r';
128 while (!(sio01.srb_csrb & 0x4))
129 ;
130 }
131 sio01.rhrb_thrb = (unsigned char)*str++;
132 while (!(sio01.srb_csrb & 0x4))
133 ;
134 }
135 }
137 void dn_serial_print (const char *str)
138 {
139 while (*str) {
140 if (*str == '\n') {
141 sio01.rhrb_thrb = (unsigned char)'\r';
142 while (!(sio01.srb_csrb & 0x4))
143 ;
144 }
145 sio01.rhrb_thrb = (unsigned char)*str++;
146 while (!(sio01.srb_csrb & 0x4))
147 ;
148 }
149 }
151 void config_apollo(void) {
153 int i;
155 dn_setup_model();
157 mach_sched_init=dn_sched_init; /* */
158 mach_init_IRQ=dn_init_IRQ;
159 mach_gettimeoffset = dn_gettimeoffset;
160 mach_max_dma_address = 0xffffffff;
161 mach_hwclk = dn_dummy_hwclk; /* */
162 mach_set_clock_mmss = dn_dummy_set_clock_mmss; /* */
163 mach_reset = dn_dummy_reset; /* */
164 #ifdef CONFIG_HEARTBEAT
165 mach_heartbeat = dn_heartbeat;
166 #endif
167 mach_get_model = dn_get_model;
169 cpuctrl=0xaa00;
171 /* clear DMA translation table */
172 for(i=0;i<0x400;i++)
173 addr_xlat_map[i]=0;
175 }
177 irqreturn_t dn_timer_int(int irq, void *dev_id, struct pt_regs *fp)
178 {
179 irqreturn_t (*timer_handler)(int, void *, struct pt_regs *) = dev_id;
181 volatile unsigned char x;
183 timer_handler(irq, dev_id, fp);
185 x=*(volatile unsigned char *)(timer+3);
186 x=*(volatile unsigned char *)(timer+5);
188 return IRQ_HANDLED;
189 }
191 void dn_sched_init(irqreturn_t (*timer_routine)(int, void *, struct pt_regs *)) {
193 /* program timer 1 */
194 *(volatile unsigned char *)(timer+3)=0x01;
195 *(volatile unsigned char *)(timer+1)=0x40;
196 *(volatile unsigned char *)(timer+5)=0x09;
197 *(volatile unsigned char *)(timer+7)=0xc4;
199 /* enable IRQ of PIC B */
200 *(volatile unsigned char *)(pica+1)&=(~8);
202 #if 0
203 printk("*(0x10803) %02x\n",*(volatile unsigned char *)(timer+0x3));
204 printk("*(0x10803) %02x\n",*(volatile unsigned char *)(timer+0x3));
205 #endif
207 request_irq(IRQ_APOLLO, dn_timer_int, 0, "time", timer_routine);
208 }
210 unsigned long dn_gettimeoffset(void) {
212 return 0xdeadbeef;
214 }
216 int dn_dummy_hwclk(int op, struct rtc_time *t) {
219 if(!op) { /* read */
220 t->tm_sec=rtc->second;
221 t->tm_min=rtc->minute;
222 t->tm_hour=rtc->hours;
223 t->tm_mday=rtc->day_of_month;
224 t->tm_wday=rtc->day_of_week;
225 t->tm_mon=rtc->month;
226 t->tm_year=rtc->year;
227 } else {
228 rtc->second=t->tm_sec;
229 rtc->minute=t->tm_min;
230 rtc->hours=t->tm_hour;
231 rtc->day_of_month=t->tm_mday;
232 if(t->tm_wday!=-1)
233 rtc->day_of_week=t->tm_wday;
234 rtc->month=t->tm_mon;
235 rtc->year=t->tm_year;
236 }
238 return 0;
240 }
242 int dn_dummy_set_clock_mmss(unsigned long nowtime) {
244 printk("set_clock_mmss\n");
246 return 0;
248 }
250 void dn_dummy_reset(void) {
252 dn_serial_print("The end !\n");
254 for(;;);
256 }
258 void dn_dummy_waitbut(void) {
260 dn_serial_print("waitbut\n");
262 }
264 static void dn_get_model(char *model)
265 {
266 strcpy(model, "Apollo ");
267 if (apollo_model >= APOLLO_DN3000 && apollo_model <= APOLLO_DN4500)
268 strcat(model, apollo_models[apollo_model - APOLLO_DN3000]);
269 }
271 #ifdef CONFIG_HEARTBEAT
272 static int dn_cpuctrl=0xff00;
274 static void dn_heartbeat(int on) {
276 if(on) {
277 dn_cpuctrl&=~0x100;
278 cpuctrl=dn_cpuctrl;
279 }
280 else {
281 dn_cpuctrl&=~0x100;
282 dn_cpuctrl|=0x100;
283 cpuctrl=dn_cpuctrl;
284 }
285 }
286 #endif