arch/arm-raspi/exec/platform_init.c

   1 /*
   2     Copyright © 2013, The AROS Development Team. All rights reserved.
   3     $Id$
   4 */
   5
   6 #define DEBUG 1
   7
   8 #include <aros/debug.h>
   9 #include <aros/kernel.h>
  10 #include <aros/symbolsets.h>
  11 #include <exec/memory.h>
  12 #include <exec/tasks.h>
  13 #include <exec/alerts.h>
  14 #include <exec/execbase.h>
  15 #include <asm/io.h>
  16 #include <proto/exec.h>
  17 #include <strings.h>
  18
  19 #include <asm/bcm2835.h>
  20
  21 /* Linked from kernel.resource,
  22  * need to retrieve in a cleaner fashion .. */
  23 extern IPTR stack[];
  24
  25 extern void IdleTask(struct ExecBase *);
  26
  27 struct Task *sysIdleTask = NULL;
  28
  29 static int PlatformInit(struct ExecBase *SysBase)
  30 {
  31     D(bug("[Exec] PlatformInit()\n"));
  32
  33     struct Task *BootTask = SysBase->ThisTask;
  34     D(bug("[Exec] PlatformInit: Boot Task @ 0x%p\n", BootTask));
  35
  36     /* for our sanity we will tell exec about the correct stack for the boot task */
  37     BootTask->tc_SPLower = stack;
  38     BootTask->tc_SPUpper = stack + STACK_SIZE;
  39
  40     sysIdleTask = NewCreateTask(TASKTAG_NAME       , "System Idle",
  41                       TASKTAG_PRI        , -127,
  42                       TASKTAG_PC         , IdleTask,
  43                       TASKTAG_ARG1       , SysBase,
  44                       TAG_DONE);
  45
  46     sysIdleTask->tc_State      = TS_WAIT;
  47
  48     D(bug("[Exec] PlatformInit: Idle Task @ 0x%p\n", sysIdleTask));
  49
  50     return TRUE;
  51 }
  52
  53 ADD2INITLIB(PlatformInit, 0)