board/versatile/versatile.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  * (C) Copyright 2004
  14  * ARM Ltd.
  15  * Philippe Robin, <philippe.robin@arm.com>
  16  *
  17  * See file CREDITS for list of people who contributed to this
  18  * project.
  19  *
  20  * This program is free software; you can redistribute it and/or
  21  * modify it under the terms of the GNU General Public License as
  22  * published by the Free Software Foundation; either version 2 of
  23  * the License, or (at your option) any later version.
  24  *
  25  * This program is distributed in the hope that it will be useful,
  26  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  27  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  28  * GNU General Public License for more details.
  29  *
  30  * You should have received a copy of the GNU General Public License
  31  * along with this program; if not, write to the Free Software
  32  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  33  * MA 02111-1307 USA
  34  */
  35
  36 #include <common.h>
  37
  38 DECLARE_GLOBAL_DATA_PTR;
  39
  40 void flash__init (void);
  41 void ether__init (void);
  42 void peripheral_power_enable (void);
  43
  44 #if defined(CONFIG_SHOW_BOOT_PROGRESS)
  45 void show_boot_progress(int progress)
  46 {
  47     printf("Boot reached stage %d\n", progress);
  48 }
  49 #endif
  50
  51 #define COMP_MODE_ENABLE ((unsigned int)0x0000EAEF)
  52
  53 static inline void delay (unsigned long loops)
  54 {
  55         __asm__ volatile ("1:\n"
  56                 "subs %0, %1, #1\n"
  57                 "bne 1b":"=r" (loops):"0" (loops));
  58 }
  59
  60 /*
  61  * Miscellaneous platform dependent initialisations
  62  */
  63
  64 int board_init (void)
  65 {
  66         /*
  67          * set clock frequency:
  68          *      VERSATILE_REFCLK is 32KHz
  69          *      VERSATILE_TIMCLK is 1MHz
  70          */
  71         *(volatile unsigned int *)(VERSATILE_SCTL_BASE) |=
  72           ((VERSATILE_TIMCLK << VERSATILE_TIMER1_EnSel) | (VERSATILE_TIMCLK << VERSATILE_TIMER2_EnSel) |
  73            (VERSATILE_TIMCLK << VERSATILE_TIMER3_EnSel) | (VERSATILE_TIMCLK << VERSATILE_TIMER4_EnSel));
  74
  75         /* arch number of Versatile Board */
  76         gd->bd->bi_arch_number = MACH_TYPE_VERSATILE_PB;
  77
  78         /* adress of boot parameters */
  79         gd->bd->bi_boot_params = 0x00000100;
  80
  81         gd->flags = 0;
  82
  83         icache_enable ();
  84
  85         flash__init ();
  86         ether__init ();
  87         return 0;
  88 }
  89
  90
  91 int misc_init_r (void)
  92 {
  93         setenv("verify", "n");
  94         return (0);
  95 }
  96
  97 /******************************
  98  Routine:
  99  Description:
 100 ******************************/
 101 void flash__init (void)
 102 {
 103 }
 104 /*************************************************************
 105  Routine:ether__init
 106  Description: take the Ethernet controller out of reset and wait
 107                            for the EEPROM load to complete.
 108 *************************************************************/
 109 void ether__init (void)
 110 {
 111 }
 112
 113 /******************************
 114  Routine:
 115  Description:
 116 ******************************/
 117 int dram_init (void)
 118 {
 119         return 0;
 120 }