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 #include <netdev.h>
  36
  37 #define SAVE_SZ 32
  38
  39
  40 int checkboard(void)
  41 {
  42         ulong busfreq  = get_bus_freq(0);
  43         char  buf[32];
  44
  45         printf("Board: UTX8245 Local Bus at %s MHz\n", strmhz(buf, busfreq));
  46         return 0;
  47 }
  48
  49
  50 phys_size_t initdram(int board_type)
  51 {
  52         long size;
  53         long new_bank0_end;
  54         long new_bank1_end;
  55         long mear1;
  56         long emear1;
  57
  58         size = get_ram_size(CONFIG_SYS_SDRAM_BASE, CONFIG_SYS_MAX_RAM_SIZE);
  59
  60         new_bank0_end = size/2 - 1;
  61         new_bank1_end = size - 1;
  62         mear1 = mpc824x_mpc107_getreg(MEAR1);
  63         emear1 = mpc824x_mpc107_getreg(EMEAR1);
  64
  65         mear1 = (mear1  & 0xFFFF0000) |
  66                 ((new_bank0_end & MICR_ADDR_MASK) >> MICR_ADDR_SHIFT) |
  67                 ((new_bank1_end & MICR_ADDR_MASK) >> MICR_ADDR_SHIFT << 8);
  68         emear1 = (emear1 & 0xFFFF0000) |
  69                 ((new_bank0_end & MICR_EADDR_MASK) >> MICR_EADDR_SHIFT) |
  70                 ((new_bank1_end & MICR_EADDR_MASK) >> MICR_EADDR_SHIFT << 8);
  71
  72         mpc824x_mpc107_setreg(MEAR1, mear1);
  73         mpc824x_mpc107_setreg(EMEAR1, emear1);
  74
  75         return (size);
  76 }
  77
  78
  79 /*
  80  * Initialize PCI Devices, report devices found.
  81  */
  82
  83 static struct pci_config_table pci_utx8245_config_table[] = {
  84 #ifndef CONFIG_PCI_PNP
  85         { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, 0x0C, PCI_ANY_ID,
  86           pci_cfgfunc_config_device, { PCI_ENET0_IOADDR,
  87                                        PCI_ENET0_MEMADDR,
  88                                        PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER }},
  89         { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, 0x0B, PCI_ANY_ID,
  90           pci_cfgfunc_config_device, { PCI_FIREWIRE_IOADDR,
  91                                        PCI_FIREWIRE_MEMADDR,
  92                                        PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER }},
  93 #endif /*CONFIG_PCI_PNP*/
  94         { }
  95 };
  96
  97
  98 static void pci_utx8245_fixup_irq(struct pci_controller *hose, pci_dev_t dev)
  99 {
 100         if (PCI_DEV(dev) == 11)
 101                 /* assign serial interrupt line 9 (int25) to FireWire */
 102                 pci_hose_write_config_byte(hose, dev, PCI_INTERRUPT_LINE, 25);
 103
 104         else if (PCI_DEV(dev) == 12)
 105                 /* assign serial interrupt line 8 (int24) to Ethernet */
 106                 pci_hose_write_config_byte(hose, dev, PCI_INTERRUPT_LINE, 24);
 107
 108         else if (PCI_DEV(dev) == 14)
 109                 /* assign serial interrupt line 0 (int16) to PMC slot 0 */
 110                 pci_hose_write_config_byte(hose, dev, PCI_INTERRUPT_LINE, 16);
 111
 112         else if (PCI_DEV(dev) == 15)
 113                 /* assign serial interrupt line 1 (int17) to PMC slot 1 */
 114                 pci_hose_write_config_byte(hose, dev, PCI_INTERRUPT_LINE, 17);
 115 }
 116
 117 static struct pci_controller utx8245_hose = {
 118 #ifndef CONFIG_PCI_PNP
 119         config_table: pci_utx8245_config_table,
 120         fixup_irq: pci_utx8245_fixup_irq,
 121         write_byte: pci_hose_write_config_byte
 122 #endif /*CONFIG_PCI_PNP*/
 123 };
 124
 125 void pci_init_board (void)
 126 {
 127         pci_mpc824x_init(&utx8245_hose);
 128
 129         icache_enable();
 130 }
 131
 132 int board_eth_init(bd_t *bis)
 133 {
 134         return pci_eth_init(bis);
 135 }