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 void flash__init (void);
  39 void ether__init (void);
  40 void peripheral_power_enable (void);
  41
  42 #if defined(CONFIG_SHOW_BOOT_PROGRESS)
  43 void show_boot_progress(int progress)
  44 {
  45     printf("Boot reached stage %d\n", progress);
  46 }
  47 #endif
  48
  49 #define COMP_MODE_ENABLE ((unsigned int)0x0000EAEF)
  50
  51 static inline void delay (unsigned long loops)
  52 {
  53         __asm__ volatile ("1:\n"
  54                 "subs %0, %1, #1\n"
  55                 "bne 1b":"=r" (loops):"0" (loops));
  56 }
  57
  58 /*
  59  * Miscellaneous platform dependent initialisations
  60  */
  61
  62 int board_init (void)
  63 {
  64         DECLARE_GLOBAL_DATA_PTR;
  65
  66
  67         /*
  68          * set clock frequency:
  69          *      VERSATILE_REFCLK is 32KHz
  70          *      VERSATILE_TIMCLK is 1MHz
  71          */
  72         *(volatile unsigned int *)(VERSATILE_SCTL_BASE) |=
  73           ((VERSATILE_TIMCLK << VERSATILE_TIMER1_EnSel) | (VERSATILE_TIMCLK << VERSATILE_TIMER2_EnSel) |
  74            (VERSATILE_TIMCLK << VERSATILE_TIMER3_EnSel) | (VERSATILE_TIMCLK << VERSATILE_TIMER4_EnSel));
  75
  76         /* arch number of Versatile Board */
  77         gd->bd->bi_arch_number = MACH_TYPE_VERSATILE_PB;
  78
  79         /* adress of boot parameters */
  80         gd->bd->bi_boot_params = 0x00000100;
  81
  82         gd->flags = 0;
  83
  84         icache_enable ();
  85
  86         flash__init ();
  87         ether__init ();
  88         return 0;
  89 }
  90
  91
  92 int misc_init_r (void)
  93 {
  94         setenv("verify", "n");
  95         return (0);
  96 }
  97
  98 /******************************
  99  Routine:
 100  Description:
 101 ******************************/
 102 void flash__init (void)
 103 {
 104 }
 105 /*************************************************************
 106  Routine:ether__init
 107  Description: take the Ethernet controller out of reset and wait
 108                            for the EEPROM load to complete.
 109 *************************************************************/
 110 void ether__init (void)
 111 {
 112 }
 113
 114 /******************************
 115  Routine:
 116  Description:
 117 ******************************/
 118 int dram_init (void)
 119 {
 120         return 0;
 121 }