board/ns9750dev/ns9750dev.c

   1 /*
   2  * (C) Copyright 2002
   3  * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
   4  * Marius Groeger <mgroeger@sysgo.de>
   5  *
   6  * (C) Copyright 2002
   7  * David Mueller, ELSOFT AG, <d.mueller@elsoft.ch>
   8  *
   9  * (C) Copyright 2003
  10  * Texas Instruments, <www.ti.com>
  11  * Kshitij Gupta <Kshitij@ti.com>
  12  *
  13  * Copyright (C) 2004 by FS Forth-Systeme GmbH.
  14  * All rights reserved.
  15  * Markus Pietrek <mpietrek@fsforth.de>
  16  * derived from omap1610innovator.c
  17  * @References: [1] NS9750 Hardware Reference/December 2003
  18  *
  19  * See file CREDITS for list of people who contributed to this
  20  * project.
  21  *
  22  * This program is free software; you can redistribute it and/or
  23  * modify it under the terms of the GNU General Public License as
  24  * published by the Free Software Foundation; either version 2 of
  25  * the License, or (at your option) any later version.
  26  *
  27  * This program is distributed in the hope that it will be useful,
  28  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  29  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  30  * GNU General Public License for more details.
  31  *
  32  * You should have received a copy of the GNU General Public License
  33  * along with this program; if not, write to the Free Software
  34  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  35  * MA 02111-1307 USA
  36  */
  37
  38 #include <common.h>
  39 #if defined(CONFIG_NS9750DEV)
  40 # include <./configs/ns9750dev.h>
  41 # include <./ns9750_bbus.h>
  42 #endif
  43
  44 DECLARE_GLOBAL_DATA_PTR;
  45
  46 void flash__init( void );
  47 void ether__init( void );
  48
  49 static inline void delay( unsigned long loops )
  50 {
  51         __asm__ volatile ("1:\n"
  52                 "subs %0, %1, #1\n"
  53                 "bne 1b":"=r" (loops):"0" (loops));
  54 }
  55
  56
  57 /***********************************************************************
  58  * @Function: board_init
  59  * @Return: 0
  60  * @Descr: Enables BBUS modules and other devices
  61  ***********************************************************************/
  62
  63 int board_init( void )
  64 {
  65         /* Active BBUS modules */
  66         *get_bbus_reg_addr( NS9750_BBUS_MASTER_RESET ) = 0;
  67
  68 #warning Please register your machine at http://www.arm.linux.org.uk/developer/machines/?action=new
  69         /* arch number of OMAP 1510-Board */
  70         /* to be changed for OMAP 1610 Board */
  71         gd->bd->bi_arch_number = 234;
  72
  73         /* adress of boot parameters */
  74         gd->bd->bi_boot_params = 0x10000100;
  75
  76
  77 /* this speeds up your boot a quite a bit.  However to make it
  78  *  work, you need make sure your kernel startup flush bug is fixed.
  79  *  ... rkw ...
  80  */
  81         icache_enable();
  82
  83         flash__init();
  84         ether__init();
  85         return 0;
  86 }
  87
  88
  89 int misc_init_r (void)
  90 {
  91         /* currently empty */
  92         return (0);
  93 }
  94
  95 /******************************
  96  Routine:
  97  Description:
  98 ******************************/
  99 void flash__init (void)
 100 {
 101 }
 102 /*************************************************************
 103  Routine:ether__init
 104  Description: take the Ethernet controller out of reset and wait
 105                            for the EEPROM load to complete.
 106 *************************************************************/
 107 void ether__init (void)
 108 {
 109 }
 110
 111 /******************************
 112  Routine:
 113  Description:
 114 ******************************/
 115 int dram_init (void)
 116 {
 117         gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
 118         gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
 119
 120 #if CONFIG_NR_DRAM_BANKS > 1
 121         gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
 122         gd->bd->bi_dram[1].size = PHYS_SDRAM_2_SIZE;
 123 #endif
 124         return 0;
 125 }