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/* $Id: bootstrap.c,v 1.4 2008-06-30 10:14:59 sybreon Exp $

**

** BOOTSTRAP

** Copyright (C) 2008 Shawn Tan <shawn.tan@aeste.net>

**

** This file is part of AEMB.

**

** AEMB is free software: you can redistribute it and/or modify it

** under the terms of the GNU General Public License as published by

** the Free Software Foundation, either version 3 of the License, or

** (at your option) any later version.

**

** AEMB is distributed in the hope that it will be useful, but WITHOUT

** ANY WARRANTY; without even the implied warranty of MERCHANTABILITY

** or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public

** License for more details.

**

** You should have received a copy of the GNU General Public License

** along with AEMB.  If not, see <http://www.gnu.org/licenses/>.

*/

/*

#define SRAM_BASE 0x00008000

The base address of the RAM block

#define SRAM_SIZE 0x8000

The size of the RAM block

#define BOOT_BASE 0x00004000

The base address of the boot loader

*/

#include "memtest.hh"

/**

   MEMORY TEST

 */

static inline int memtest (int base, int len)

{

  return (

#ifdef TEST_LONG

          (memTestDataBus(base) != 0) ||

          (memTestAddrBus(base, len) != 0) ||

          (memTestFullDev(base, len) != 0) // takes long time

#else

          (memTestDataBus(base) != 0) ||

          (memTestAddrBus(base, len) != 0)

#endif

           ) ? 0 : -1;

}

/**

   START BOOT LOADER

 */

static inline void runboot(int base)

{

  asm volatile ("brai %0"::"i"(base));

  //void *fsboot = (void *) base;

  //fsboot = (void *) base;

  //goto *fsboot;  

}

/**

   STRING IT ALL TOGETHER

 */

int main ()

{

  if (memtest(SRAM_BASE, SRAM_SIZE) == 0)

    runboot(BOOT_BASE);

  else

    while (1); // asm volatile ("");  

}

/*

  $Log: not supported by cvs2svn $

  Revision 1.3  2008/06/24 10:34:40  sybreon

  updated

  Revision 1.2  2008/06/24 00:45:36  sybreon

  basic version

  Revision 1.1  2008/06/23 22:18:04  sybreon

  initial import

 */