board/pxa255_idp/pxa_idp.c

   1 /*
   2  * (C) Copyright 2002
   3  * Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net
   4  *
   5  * (C) Copyright 2002
   6  * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
   7  * Marius Groeger <mgroeger@sysgo.de>
   8  *
   9  * (C) Copyright 2004
  10  * BEC Systems <http://bec-systems.com>
  11  * Cliff Brake <cliff.brake@gmail.com>
  12  * Support for Accelent/Vibren PXA255 IDP
  13  *
  14  * See file CREDITS for list of people who contributed to this
  15  * project.
  16  *
  17  * This program is free software; you can redistribute it and/or
  18  * modify it under the terms of the GNU General Public License as
  19  * published by the Free Software Foundation; either version 2 of
  20  * the License, or (at your option) any later version.
  21  *
  22  * This program is distributed in the hope that it will be useful,
  23  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  24  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  25  * GNU General Public License for more details.
  26  *
  27  * You should have received a copy of the GNU General Public License
  28  * along with this program; if not, write to the Free Software
  29  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  30  * MA 02111-1307 USA
  31  */
  32
  33 #include <common.h>
  34 #include <command.h>
  35
  36 /* ------------------------------------------------------------------------- */
  37
  38
  39 /*
  40  * Miscelaneous platform dependent initialisations
  41  */
  42
  43 int board_init (void)
  44 {
  45         DECLARE_GLOBAL_DATA_PTR;
  46
  47         /* memory and cpu-speed are setup before relocation */
  48         /* so we do _nothing_ here */
  49
  50         /* arch number of Lubbock-Board */
  51         gd->bd->bi_arch_number = MACH_TYPE_PXA_IDP;
  52
  53         /* adress of boot parameters */
  54         gd->bd->bi_boot_params = 0xa0000100;
  55
  56         /* turn on serial ports */
  57         *(volatile unsigned int *)(PXA_CS5_PHYS + 0x03C0002c) = 0x13;
  58
  59         /* set PWM for LCD */
  60         /* a value that works is 60Hz, 77% duty cycle */
  61         CKEN |= CKEN0_PWM0;
  62         PWM_CTRL0 = 0x3f;
  63         PWM_PERVAL0 = 0x3ff;
  64         PWM_PWDUTY0 = 792;
  65
  66         /* clear reset to AC97 codec */
  67         CKEN |= CKEN2_AC97;
  68         GCR = GCR_COLD_RST;
  69
  70         /* enable LCD backlight */
  71         /* *(volatile unsigned int *)(PXA_CS5_PHYS + 0x03C00030) = 0x7; */
  72
  73         /* test display */
  74         /* lcd_puts("This is a test\nTest #2\n"); */
  75
  76         return 0;
  77 }
  78
  79 int board_late_init(void)
  80 {
  81         setenv("stdout", "serial");
  82         setenv("stderr", "serial");
  83         return 0;
  84 }
  85
  86
  87 int dram_init (void)
  88 {
  89         DECLARE_GLOBAL_DATA_PTR;
  90
  91         gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
  92         gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
  93         gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
  94         gd->bd->bi_dram[1].size = PHYS_SDRAM_2_SIZE;
  95         gd->bd->bi_dram[2].start = PHYS_SDRAM_3;
  96         gd->bd->bi_dram[2].size = PHYS_SDRAM_3_SIZE;
  97         gd->bd->bi_dram[3].start = PHYS_SDRAM_4;
  98         gd->bd->bi_dram[3].size = PHYS_SDRAM_4_SIZE;
  99
 100         return 0;
 101 }
 102
 103
 104 #ifdef DEBUG_BLINKC_ENABLE
 105
 106 void delay_c(void)
 107 {
 108         /* reset OSCR to 0 */
 109         OSCR = 0;
 110         while(OSCR > 0x10000)
 111                 ;
 112
 113         while(OSCR < 0xd4000)
 114                 ;
 115 }
 116
 117 void blink_c(void)
 118 {
 119         int led_bit = (1<<10);
 120
 121         GPDR0 = led_bit;
 122         GPCR0 = led_bit;
 123         delay_c();
 124         GPSR0 = led_bit;
 125         delay_c();
 126         GPCR0 = led_bit;
 127 }
 128
 129 int do_idpcmd(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 130 {
 131         printf("IDPCMD started\n");
 132         return 0;
 133 }
 134
 135 U_BOOT_CMD(idpcmd, CFG_MAXARGS, 0, do_idpcmd,
 136            "idpcmd    - custom IDP command\n",
 137            "no args at this time\n"
 138 );
 139
 140 #endif