board/total5200/total5200.c

   1 /*
   2  * (C) Copyright 2003-2004
   3  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   4  *
   5  * (C) Copyright 2004
   6  * Mark Jonas, Freescale Semiconductor, mark.jonas@freescale.com.
   7  *
   8  * See file CREDITS for list of people who contributed to this
   9  * project.
  10  *
  11  * This program is free software; you can redistribute it and/or
  12  * modify it under the terms of the GNU General Public License as
  13  * published by the Free Software Foundation; either version 2 of
  14  * the License, or (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  24  * MA 02111-1307 USA
  25  */
  26
  27 #include <common.h>
  28 #include <mpc5xxx.h>
  29 #include <pci.h>
  30
  31 #include "sdram.h"
  32
  33 #if CONFIG_TOTAL5200_REV==2
  34 #include "mt48lc32m16a2-75.h"
  35 #else
  36 #include "mt48lc16m16a2-75.h"
  37 #endif
  38
  39 long int initdram (int board_type)
  40 {
  41         sdram_conf_t sdram_conf;
  42
  43         sdram_conf.ddr = SDRAM_DDR;
  44         sdram_conf.mode = SDRAM_MODE;
  45         sdram_conf.emode = 0;
  46         sdram_conf.control = SDRAM_CONTROL;
  47         sdram_conf.config1 = SDRAM_CONFIG1;
  48         sdram_conf.config2 = SDRAM_CONFIG2;
  49 #if defined(CONFIG_MPC5200)
  50         sdram_conf.tapdelay = 0;
  51 #endif
  52 #if defined(CONFIG_MGT5100)
  53         sdram_conf.addrsel = SDRAM_ADDRSEL;
  54 #endif
  55         return mpc5xxx_sdram_init (&sdram_conf);
  56 }
  57
  58 int checkboard (void)
  59 {
  60 #if defined(CONFIG_MPC5200)
  61 #if CONFIG_TOTAL5200_REV==2
  62         puts ("Board: Total5200 Rev.2 ");
  63 #else
  64         puts ("Board: Total5200 ");
  65 #endif
  66 #elif defined(CONFIG_MGT5100)
  67         puts ("Board: Total5100 ");
  68 #endif
  69
  70 /*
  71  * Retrieve FPGA Revision.
  72  */
  73 printf ("(FPGA %08X)\n", *(vu_long *) (CFG_FPGA_BASE + 0x400));
  74
  75 /*
  76  * Take all peripherals in power-up mode.
  77  */
  78 #if CONFIG_TOTAL5200_REV==2
  79         *(vu_char *) (CFG_CPLD_BASE + 0x46) = 0x70;
  80 #else
  81         *(vu_long *) (CFG_CPLD_BASE + 0x400) = 0x70;
  82 #endif
  83
  84         return 0;
  85 }
  86
  87 #if defined(CONFIG_MGT5100)
  88 int board_early_init_r(void)
  89 {
  90         /*
  91          * Now, when we are in RAM, enable CS0
  92          * because CS_BOOT cannot be written.
  93          */
  94         *(vu_long *)MPC5XXX_ADDECR &= ~(1 << 25); /* disable CS_BOOT */
  95         *(vu_long *)MPC5XXX_ADDECR |= (1 << 16); /* enable CS0 */
  96
  97         return 0;
  98 }
  99 #endif
 100
 101 #ifdef  CONFIG_PCI
 102 static struct pci_controller hose;
 103
 104 extern void pci_mpc5xxx_init(struct pci_controller *);
 105
 106 void pci_init_board(void)
 107 {
 108         pci_mpc5xxx_init(&hose);
 109 }
 110 #endif
 111
 112 #if defined (CFG_CMD_IDE) && defined (CONFIG_IDE_RESET)
 113
 114 /* IRDA_1 aka PSC6_3 (pin C13) */
 115 #define GPIO_IRDA_1     0x20000000UL
 116
 117 void init_ide_reset (void)
 118 {
 119         debug ("init_ide_reset\n");
 120
 121         /* Configure IRDA_1 (PSC6_3) as GPIO output for ATA reset */
 122         *(vu_long *) MPC5XXX_GPIO_ENABLE |= GPIO_IRDA_1;
 123         *(vu_long *) MPC5XXX_GPIO_DIR    |= GPIO_IRDA_1;
 124 }
 125
 126 void ide_set_reset (int idereset)
 127 {
 128         debug ("ide_reset(%d)\n", idereset);
 129
 130         if (idereset) {
 131                 *(vu_long *) MPC5XXX_GPIO_DATA_O &= ~GPIO_IRDA_1;
 132         } else {
 133                 *(vu_long *) MPC5XXX_GPIO_DATA_O |=  GPIO_IRDA_1;
 134         }
 135 }
 136 #endif /* defined (CFG_CMD_IDE) && defined (CONFIG_IDE_RESET) */