board/sbc8240/sbc8240.c

   1 /*
   2  * (C) Copyright 2001
   3  * Rob Taylor, Flying Pig Systems. robt@flyingpig.com.
   4  *
   5  * (C) Copyright 2001, 2002
   6  * Wolfgang Denk, DENX Software Engineering, <wd@denx.de>
   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 <mpc824x.h>
  29 #include <asm/processor.h>
  30 #include <pci.h>
  31
  32 DECLARE_GLOBAL_DATA_PTR;
  33
  34 #define BOARD_REV_REG 0xFE80002B
  35
  36 int checkboard (void)
  37 {
  38         char  revision = *(volatile char *)(BOARD_REV_REG);
  39         char  buf[32];
  40
  41         puts ("Board: sbc8240 ");
  42         printf("Revision %d ", revision);
  43         printf("Local Bus at %s MHz\n", strmhz(buf, gd->bus_clk));
  44
  45         return 0;
  46 }
  47
  48 long int initdram(int board_type)
  49 {
  50         long size;
  51         long new_bank0_end;
  52         long mear1;
  53         long emear1;
  54
  55         size = get_ram_size(CFG_SDRAM_BASE, CFG_MAX_RAM_SIZE);
  56
  57         new_bank0_end = size - 1;
  58         mear1 = mpc824x_mpc107_getreg(MEAR1);
  59         emear1 = mpc824x_mpc107_getreg(EMEAR1);
  60         mear1 = (mear1  & 0xFFFFFF00) |
  61                 ((new_bank0_end & MICR_ADDR_MASK) >> MICR_ADDR_SHIFT);
  62         emear1 = (emear1 & 0xFFFFFF00) |
  63                 ((new_bank0_end & MICR_ADDR_MASK) >> MICR_EADDR_SHIFT);
  64         mpc824x_mpc107_setreg(MEAR1,  mear1);
  65         mpc824x_mpc107_setreg(EMEAR1, emear1);
  66
  67         return (size);
  68 }
  69
  70 /*
  71  * Initialize PCI Devices, report devices found.
  72  */
  73 #ifndef CONFIG_PCI_PNP
  74 static struct pci_config_table pci_sandpoint_config_table[] = {
  75         { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, 0x0f, PCI_ANY_ID,
  76           pci_cfgfunc_config_device, { PCI_ENET0_IOADDR,
  77                                        PCI_ENET0_MEMADDR,
  78                                        PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER }},
  79
  80         { }
  81 };
  82 #endif
  83
  84 struct pci_controller hose = {
  85 #ifndef CONFIG_PCI_PNP
  86         config_table: pci_sandpoint_config_table,
  87 #endif
  88 };
  89
  90 void pci_init_board(void)
  91 {
  92         pci_mpc824x_init(&hose);
  93 }
  94
  95 #ifdef CONFIG_MISC_INIT_R
  96 /* ------------------------------------------------------------------------- */
  97 int misc_init_r (void)
  98 {
  99 #ifdef CFG_LED_BASE
 100         *((unsigned char *) (CFG_LED_BASE)) = 0xFF;
 101 #endif /* CFG_LED_BASE */
 102
 103         return (0);
 104 }
 105 #endif /* CONFIG_MISC_INIT_R */