arch/m68knommu/platform/68EZ328/config.c

   1 /*
   2  *  linux/arch/$(ARCH)/platform/$(PLATFORM)/config.c
   3  *
   4  *  Copyright (C) 1993 Hamish Macdonald
   5  *  Copyright (C) 1999 D. Jeff Dionne
   6  *
   7  * This file is subject to the terms and conditions of the GNU General Public
   8  * License.  See the file COPYING in the main directory of this archive
   9  * for more details.
  10  */
  11
  12 #include <stdarg.h>
  13 #include <linux/config.h>
  14 #include <linux/types.h>
  15 #include <linux/kernel.h>
  16 #include <linux/mm.h>
  17 #include <linux/tty.h>
  18 #include <linux/console.h>
  19
  20 #include <asm/setup.h>
  21 #include <asm/system.h>
  22 #include <asm/pgtable.h>
  23 #include <asm/irq.h>
  24 #include <asm/machdep.h>
  25 #include <asm/MC68EZ328.h>
  26 #ifdef CONFIG_UCSIMM
  27 #include <asm/bootstd.h>
  28 #endif
  29 #ifdef CONFIG_PILOT
  30 #include "PalmV/romfs.h"
  31 #endif
  32
  33 void BSP_sched_init(void (*timer_routine)(int, void *, struct pt_regs *))
  34 {
  35   /* Restart mode, Enable int, 32KHz, Enable timer */
  36   TCTL = TCTL_OM | TCTL_IRQEN | TCTL_CLKSOURCE_32KHZ | TCTL_TEN;
  37   /* Set prescaler (Divide 32KHz by 32)*/
  38   TPRER = 31;
  39   /* Set compare register  32Khz / 32 / 10 = 100 */
  40   TCMP = 10;
  41
  42   request_irq(TMR_IRQ_NUM, timer_routine, IRQ_FLG_LOCK, "timer", NULL);
  43 }
  44
  45 void BSP_tick(void)
  46 {
  47         /* Reset Timer1 */
  48         TSTAT &= 0;
  49 }
  50
  51 unsigned long BSP_gettimeoffset (void)
  52 {
  53   return 0;
  54 }
  55
  56 void BSP_gettod (int *yearp, int *monp, int *dayp,
  57                    int *hourp, int *minp, int *secp)
  58 {
  59 }
  60
  61 int BSP_hwclk(int op, struct hwclk_time *t)
  62 {
  63   if (!op) {
  64     /* read */
  65   } else {
  66     /* write */
  67   }
  68   return 0;
  69 }
  70
  71 int BSP_set_clock_mmss (unsigned long nowtime)
  72 {
  73 #if 0
  74   short real_seconds = nowtime % 60, real_minutes = (nowtime / 60) % 60;
  75
  76   tod->second1 = real_seconds / 10;
  77   tod->second2 = real_seconds % 10;
  78   tod->minute1 = real_minutes / 10;
  79   tod->minute2 = real_minutes % 10;
  80 #endif
  81   return 0;
  82 }
  83
  84 void BSP_reset (void)
  85 {
  86   local_irq_disable();
  87   asm volatile ("
  88     moveal #0x10c00000, %a0;
  89     moveb #0, 0xFFFFF300;
  90     moveal 0(%a0), %sp;
  91     moveal 4(%a0), %a0;
  92     jmp (%a0);
  93     ");
  94 }
  95
  96 unsigned char *cs8900a_hwaddr;
  97 static int errno;
  98
  99 #ifdef CONFIG_UCSIMM
 100 _bsc0(char *, getserialnum)
 101 _bsc1(unsigned char *, gethwaddr, int, a)
 102 _bsc1(char *, getbenv, char *, a)
 103 #endif
 104
 105 void config_BSP(char *command, int len)
 106 {
 107   unsigned char *p;
 108
 109   printk(KERN_INFO "\n68EZ328 DragonBallEZ support (C) 1999 Rt-Control, Inc\n");
 110
 111 #ifdef CONFIG_UCSIMM
 112   printk(KERN_INFO "uCsimm serial string [%s]\n",getserialnum());
 113   p = cs8900a_hwaddr = gethwaddr(0);
 114   printk(KERN_INFO "uCsimm hwaddr %.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n",
 115          p[0], p[1], p[2], p[3], p[4], p[5]);
 116
 117   p = getbenv("APPEND");
 118   if (p) strcpy(p,command);
 119   else command[0] = 0;
 120 #endif
 121
 122   mach_sched_init      = BSP_sched_init;
 123   mach_tick            = BSP_tick;
 124   mach_gettimeoffset   = BSP_gettimeoffset;
 125   mach_gettod          = BSP_gettod;
 126   mach_hwclk           = NULL;
 127   mach_set_clock_mmss  = NULL;
 128   mach_reset           = BSP_reset;
 129 }