arch/m68k/apollo/config.c

   1 #include <linux/config.h>
   2 #include <linux/types.h>
   3 #include <linux/kernel.h>
   4 #include <linux/mm.h>
   5 #include <linux/tty.h>
   6 #include <linux/console.h>
   7 #include <linux/rtc.h>
   8 #include <linux/vt_kern.h>
   9
  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>
  18
  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;
  27
  28 extern void dn_sched_init(void (*handler)(int,void *,struct pt_regs *));
  29 extern int dn_keyb_init(void);
  30 extern int dn_dummy_kbdrate(struct kbd_repeat *);
  31 extern void dn_init_IRQ(void);
  32 extern int dn_request_irq(unsigned int irq, void (*handler)(int, void *, struct pt_regs *), unsigned long flags, const char *devname, void *dev_id);
  33 extern void dn_free_irq(unsigned int irq, void *dev_id);
  34 extern void dn_enable_irq(unsigned int);
  35 extern void dn_disable_irq(unsigned int);
  36 extern int dn_get_irq_list(char *);
  37 extern unsigned long dn_gettimeoffset(void);
  38 extern void dn_gettod(int *, int *, int *, int *, int *, int *);
  39 extern int dn_dummy_hwclk(int, struct rtc_time *);
  40 extern int dn_dummy_set_clock_mmss(unsigned long);
  41 extern void dn_mksound(unsigned int count, unsigned int ticks);
  42 extern void dn_dummy_reset(void);
  43 extern void dn_dummy_waitbut(void);
  44 extern struct fb_info *dn_fb_init(long *);
  45 extern void dn_dummy_debug_init(void);
  46 extern void dn_dummy_video_setup(char *,int *);
  47 extern void dn_process_int(int irq, struct pt_regs *fp);
  48 #ifdef CONFIG_HEARTBEAT
  49 static void dn_heartbeat(int on);
  50 #endif
  51 static void dn_timer_int(int irq,void *, struct pt_regs *);
  52 static void (*sched_timer_handler)(int, void *, struct pt_regs *)=NULL;
  53 static void dn_get_model(char *model);
  54 static const char *apollo_models[] = {
  55         "DN3000 (Otter)",
  56         "DN3010 (Otter)",
  57         "DN3500 (Cougar II)",
  58         "DN4000 (Mink)",
  59         "DN4500 (Roadrunner)" };
  60
  61 int apollo_parse_bootinfo(const struct bi_record *record) {
  62
  63         int unknown = 0;
  64         const unsigned long *data = record->data;
  65
  66         switch(record->tag) {
  67                 case BI_APOLLO_MODEL:
  68                         apollo_model=*data;
  69                         break;
  70
  71                 default:
  72                          unknown=1;
  73         }
  74
  75         return unknown;
  76 }
  77
  78 void dn_setup_model(void) {
  79
  80
  81         printk("Apollo hardware found: ");
  82         printk("[%s]\n", apollo_models[apollo_model - APOLLO_DN3000]);
  83
  84         switch(apollo_model) {
  85                 case APOLLO_UNKNOWN:
  86                         panic("Unknown apollo model");
  87                         break;
  88                 case APOLLO_DN3000:
  89                 case APOLLO_DN3010:
  90                         sio01_physaddr=SAU8_SIO01_PHYSADDR;
  91                         rtc_physaddr=SAU8_RTC_PHYSADDR;
  92                         pica_physaddr=SAU8_PICA;
  93                         picb_physaddr=SAU8_PICB;
  94                         cpuctrl_physaddr=SAU8_CPUCTRL;
  95                         timer_physaddr=SAU8_TIMER;
  96                         break;
  97                 case APOLLO_DN4000:
  98                         sio01_physaddr=SAU7_SIO01_PHYSADDR;
  99                         sio23_physaddr=SAU7_SIO23_PHYSADDR;
 100                         rtc_physaddr=SAU7_RTC_PHYSADDR;
 101                         pica_physaddr=SAU7_PICA;
 102                         picb_physaddr=SAU7_PICB;
 103                         cpuctrl_physaddr=SAU7_CPUCTRL;
 104                         timer_physaddr=SAU7_TIMER;
 105                         break;
 106                 case APOLLO_DN4500:
 107                         panic("Apollo model not yet supported");
 108                         break;
 109                 case APOLLO_DN3500:
 110                         sio01_physaddr=SAU7_SIO01_PHYSADDR;
 111                         sio23_physaddr=SAU7_SIO23_PHYSADDR;
 112                         rtc_physaddr=SAU7_RTC_PHYSADDR;
 113                         pica_physaddr=SAU7_PICA;
 114                         picb_physaddr=SAU7_PICB;
 115                         cpuctrl_physaddr=SAU7_CPUCTRL;
 116                         timer_physaddr=SAU7_TIMER;
 117                         break;
 118                 default:
 119                         panic("Undefined apollo model");
 120                         break;
 121         }
 122
 123
 124 }
 125
 126 int dn_serial_console_wait_key(struct console *co) {
 127
 128         while(!(sio01.srb_csrb & 1))
 129                 barrier();
 130         return sio01.rhrb_thrb;
 131 }
 132
 133 void dn_serial_console_write (struct console *co, const char *str,unsigned int count)
 134 {
 135    while(count--) {
 136         if (*str == '\n') {
 137         sio01.rhrb_thrb = (unsigned char)'\r';
 138         while (!(sio01.srb_csrb & 0x4))
 139                 ;
 140         }
 141     sio01.rhrb_thrb = (unsigned char)*str++;
 142     while (!(sio01.srb_csrb & 0x4))
 143             ;
 144   }
 145 }
 146
 147 void dn_serial_print (const char *str)
 148 {
 149     while (*str) {
 150         if (*str == '\n') {
 151             sio01.rhrb_thrb = (unsigned char)'\r';
 152             while (!(sio01.srb_csrb & 0x4))
 153                 ;
 154         }
 155         sio01.rhrb_thrb = (unsigned char)*str++;
 156         while (!(sio01.srb_csrb & 0x4))
 157             ;
 158     }
 159 }
 160
 161 void config_apollo(void) {
 162
 163         int i;
 164
 165         dn_setup_model();
 166
 167         mach_sched_init=dn_sched_init; /* */
 168 #ifdef CONFIG_VT
 169         mach_keyb_init=dn_keyb_init;
 170         mach_kbdrate=dn_dummy_kbdrate;
 171         kd_mksound           = dn_mksound;
 172 #endif
 173         mach_init_IRQ=dn_init_IRQ;
 174         mach_default_handler=NULL;
 175         mach_request_irq     = dn_request_irq;
 176         mach_free_irq        = dn_free_irq;
 177         enable_irq      = dn_enable_irq;
 178         disable_irq     = dn_disable_irq;
 179         mach_get_irq_list    = dn_get_irq_list;
 180         mach_gettimeoffset   = dn_gettimeoffset;
 181         mach_gettod          = dn_gettod; /* */
 182         mach_max_dma_address = 0xffffffff;
 183         mach_hwclk           = dn_dummy_hwclk; /* */
 184         mach_set_clock_mmss  = dn_dummy_set_clock_mmss; /* */
 185         mach_process_int     = dn_process_int;
 186         mach_reset           = dn_dummy_reset;  /* */
 187 #ifdef CONFIG_DUMMY_CONSOLE
 188         conswitchp           = &dummy_con;
 189 #endif
 190 #ifdef CONFIG_HEARTBEAT
 191         mach_heartbeat = dn_heartbeat;
 192 #endif
 193         mach_get_model       = dn_get_model;
 194
 195         cpuctrl=0xaa00;
 196
 197         /* clear DMA translation table */
 198         for(i=0;i<0x400;i++)
 199                 addr_xlat_map[i]=0;
 200
 201 }
 202
 203 void dn_timer_int(int irq, void *dev_id, struct pt_regs *fp) {
 204
 205         volatile unsigned char x;
 206
 207         sched_timer_handler(irq,dev_id,fp);
 208
 209         x=*(volatile unsigned char *)(timer+3);
 210         x=*(volatile unsigned char *)(timer+5);
 211
 212 }
 213
 214 void dn_sched_init(void (*timer_routine)(int, void *, struct pt_regs *)) {
 215
 216         /* program timer 1 */
 217         *(volatile unsigned char *)(timer+3)=0x01;
 218         *(volatile unsigned char *)(timer+1)=0x40;
 219         *(volatile unsigned char *)(timer+5)=0x09;
 220         *(volatile unsigned char *)(timer+7)=0xc4;
 221
 222         /* enable IRQ of PIC B */
 223         *(volatile unsigned char *)(pica+1)&=(~8);
 224
 225 #if 0
 226         printk("*(0x10803) %02x\n",*(volatile unsigned char *)(timer+0x3));
 227         printk("*(0x10803) %02x\n",*(volatile unsigned char *)(timer+0x3));
 228 #endif
 229
 230         sched_timer_handler=timer_routine;
 231         request_irq(0,dn_timer_int,0,NULL,NULL);
 232
 233 }
 234
 235 unsigned long dn_gettimeoffset(void) {
 236
 237         return 0xdeadbeef;
 238
 239 }
 240
 241 void dn_gettod(int *yearp, int *monp, int *dayp,
 242                int *hourp, int *minp, int *secp) {
 243
 244   *yearp=rtc->year;
 245   *monp=rtc->month;
 246   *dayp=rtc->day_of_month;
 247   *hourp=rtc->hours;
 248   *minp=rtc->minute;
 249   *secp=rtc->second;
 250
 251 printk("gettod: %d %d %d %d %d %d\n",*yearp,*monp,*dayp,*hourp,*minp,*secp);
 252
 253 }
 254
 255 int dn_dummy_hwclk(int op, struct rtc_time *t) {
 256
 257
 258   if(!op) { /* read */
 259     t->tm_sec=rtc->second;
 260     t->tm_min=rtc->minute;
 261     t->tm_hour=rtc->hours;
 262     t->tm_mday=rtc->day_of_month;
 263     t->tm_wday=rtc->day_of_week;
 264     t->tm_mon=rtc->month;
 265     t->tm_year=rtc->year;
 266   } else {
 267     rtc->second=t->tm_sec;
 268     rtc->minute=t->tm_min;
 269     rtc->hours=t->tm_hour;
 270     rtc->day_of_month=t->tm_mday;
 271     if(t->tm_wday!=-1)
 272       rtc->day_of_week=t->tm_wday;
 273     rtc->month=t->tm_mon;
 274     rtc->year=t->tm_year;
 275   }
 276
 277   return 0;
 278
 279 }
 280
 281 int dn_dummy_set_clock_mmss(unsigned long nowtime) {
 282
 283   printk("set_clock_mmss\n");
 284
 285   return 0;
 286
 287 }
 288
 289 void dn_dummy_reset(void) {
 290
 291   dn_serial_print("The end !\n");
 292
 293   for(;;);
 294
 295 }
 296
 297 void dn_dummy_waitbut(void) {
 298
 299   dn_serial_print("waitbut\n");
 300
 301 }
 302
 303 static void dn_get_model(char *model)
 304 {
 305     strcpy(model, "Apollo ");
 306     if (apollo_model >= APOLLO_DN3000 && apollo_model <= APOLLO_DN4500)
 307         strcat(model, apollo_models[apollo_model - APOLLO_DN3000]);
 308 }
 309
 310 #ifdef CONFIG_HEARTBEAT
 311 static int dn_cpuctrl=0xff00;
 312
 313 static void dn_heartbeat(int on) {
 314
 315         if(on) {
 316                 dn_cpuctrl&=~0x100;
 317                 cpuctrl=dn_cpuctrl;
 318         }
 319         else {
 320                 dn_cpuctrl&=~0x100;
 321                 dn_cpuctrl|=0x100;
 322                 cpuctrl=dn_cpuctrl;
 323         }
 324 }
 325 #endif
 326