board/utx8245/utx8245.c

   1 /*
   2  * (C) Copyright 2001
   3  * Rob Taylor, Flying Pig Systems. robt@flyingpig.com.
   4  *
   5  * (C) Copyright 2002
   6  * Gregory E. Allen, gallen@arlut.utexas.edu
   7  * Matthew E. Karger, karger@arlut.utexas.edu
   8  * Applied Research Laboratories, The University of Texas at Austin
   9  *
  10  * See file CREDITS for list of people who contributed to this
  11  * project.
  12  *
  13  * This program is free software; you can redistribute it and/or
  14  * modify it under the terms of the GNU General Public License as
  15  * published by the Free Software Foundation; either version 2 of
  16  * the License, or (at your option) any later version.
  17  *
  18  * This program is distributed in the hope that it will be useful,
  19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21  * GNU General Public License for more details.
  22  *
  23  * You should have received a copy of the GNU General Public License
  24  * along with this program; if not, write to the Free Software
  25  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  26  * MA 02111-1307 USA
  27  */
  28
  29 #include <common.h>
  30 #include <mpc824x.h>
  31 #include <asm/processor.h>
  32 #include <asm/io.h>
  33 #include <asm/mmu.h>
  34 #include <pci.h>
  35
  36 #define SAVE_SZ 32
  37
  38
  39 int checkboard(void)
  40 {
  41         ulong busfreq  = get_bus_freq(0);
  42         char  buf[32];
  43
  44         printf("Board: UTX8245 Local Bus at %s MHz\n", strmhz(buf, busfreq));
  45         return 0;
  46 }
  47
  48
  49 long int initdram(int board_type)
  50 {
  51         long size;
  52         long new_bank0_end;
  53         long new_bank1_end;
  54         long mear1;
  55         long emear1;
  56
  57         size = get_ram_size(CFG_SDRAM_BASE, CFG_MAX_RAM_SIZE);
  58
  59         new_bank0_end = size/2 - 1;
  60         new_bank1_end = size - 1;
  61         mear1 = mpc824x_mpc107_getreg(MEAR1);
  62         emear1 = mpc824x_mpc107_getreg(EMEAR1);
  63
  64         mear1 = (mear1  & 0xFFFF0000) |
  65                 ((new_bank0_end & MICR_ADDR_MASK) >> MICR_ADDR_SHIFT) |
  66                 ((new_bank1_end & MICR_ADDR_MASK) >> MICR_ADDR_SHIFT << 8);
  67         emear1 = (emear1 & 0xFFFF0000) |
  68                 ((new_bank0_end & MICR_EADDR_MASK) >> MICR_EADDR_SHIFT) |
  69                 ((new_bank1_end & MICR_EADDR_MASK) >> MICR_EADDR_SHIFT << 8);
  70
  71         mpc824x_mpc107_setreg(MEAR1, mear1);
  72         mpc824x_mpc107_setreg(EMEAR1, emear1);
  73
  74         return (size);
  75 }
  76
  77
  78 /*
  79  * Initialize PCI Devices, report devices found.
  80  */
  81
  82 static struct pci_config_table pci_utx8245_config_table[] = {
  83 #ifndef CONFIG_PCI_PNP
  84         { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, 0x0C, PCI_ANY_ID,
  85           pci_cfgfunc_config_device, { PCI_ENET0_IOADDR,
  86                                        PCI_ENET0_MEMADDR,
  87                                        PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER }},
  88         { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, 0x0B, PCI_ANY_ID,
  89           pci_cfgfunc_config_device, { PCI_FIREWIRE_IOADDR,
  90                                        PCI_FIREWIRE_MEMADDR,
  91                                        PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER }},
  92 #endif /*CONFIG_PCI_PNP*/
  93         { }
  94 };
  95
  96
  97 static void pci_utx8245_fixup_irq(struct pci_controller *hose, pci_dev_t dev)
  98 {
  99         if (PCI_DEV(dev) == 11)
 100                 /* assign serial interrupt line 9 (int25) to FireWire */
 101                 pci_hose_write_config_byte(hose, dev, PCI_INTERRUPT_LINE, 25);
 102
 103         else if (PCI_DEV(dev) == 12)
 104                 /* assign serial interrupt line 8 (int24) to Ethernet */
 105                 pci_hose_write_config_byte(hose, dev, PCI_INTERRUPT_LINE, 24);
 106
 107         else if (PCI_DEV(dev) == 14)
 108                 /* assign serial interrupt line 0 (int16) to PMC slot 0 */
 109                 pci_hose_write_config_byte(hose, dev, PCI_INTERRUPT_LINE, 16);
 110
 111         else if (PCI_DEV(dev) == 15)
 112                 /* assign serial interrupt line 1 (int17) to PMC slot 1 */
 113                 pci_hose_write_config_byte(hose, dev, PCI_INTERRUPT_LINE, 17);
 114 }
 115
 116 static struct pci_controller utx8245_hose = {
 117 #ifndef CONFIG_PCI_PNP
 118         config_table: pci_utx8245_config_table,
 119         fixup_irq: pci_utx8245_fixup_irq,
 120         write_byte: pci_hose_write_config_byte
 121 #endif /*CONFIG_PCI_PNP*/
 122 };
 123
 124 void pci_init_board (void)
 125 {
 126         pci_mpc824x_init(&utx8245_hose);
 127
 128         icache_enable();
 129 }