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/*
* (C) Copyright 2001
* Rob Taylor, Flying Pig Systems. robt@flyingpig.com.
*
* (C) Copyright 2002
* Gregory E. Allen, gallen@arlut.utexas.edu
* Matthew E. Karger, karger@arlut.utexas.edu
* Applied Research Laboratories, The University of Texas at Austin
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <mpc824x.h>
#include <asm/processor.h>
#include <asm/io.h>
#include <pci.h>
#define SAVE_SZ 32
int checkboard(void)
{
ulong busfreq = get_bus_freq(0);
char buf[32];
printf("Board: UTX8245 Local Bus at %s MHz\n", strmhz(buf, busfreq));
return 0;
}
long int initdram(int board_type)
{
#if 1
int i, cnt;
volatile uchar *base = CFG_SDRAM_BASE;
volatile ulong *addr;
ulong save[SAVE_SZ];
ulong val, ret = 0;
for (i=0; i<SAVE_SZ; i++) {save[i] = 0;} /* clear table */
for (i=0, cnt=(CFG_MAX_RAM_SIZE / sizeof(long)) >> 1; cnt > 0; cnt >>= 1)
{
addr = (volatile ulong *)base + cnt;
save[i++] = *addr;
*addr = ~cnt;
}
addr = (volatile ulong *)base;
save[i] = *addr;
*addr = 0;
if (*addr != 0)
{
*addr = save[i];
goto Done;
}
for (cnt = 1; cnt < CFG_MAX_RAM_SIZE / sizeof(long); cnt <<= 1)
{
addr = (volatile ulong *)base + cnt;
val = *addr;
*addr = save[--i];
if (val != ~cnt)
{
ulong new_bank0_end = cnt * sizeof(long) - 1;
ulong mear1 = mpc824x_mpc107_getreg(MEAR1);
ulong emear1 = mpc824x_mpc107_getreg(EMEAR1);
mear1 = (mear1 & 0xFFFFFF00) |
((new_bank0_end & MICR_ADDR_MASK) >> MICR_ADDR_SHIFT);
emear1 = (emear1 & 0xFFFFFF00) |
((new_bank0_end & MICR_ADDR_MASK) >> MICR_EADDR_SHIFT);
mpc824x_mpc107_setreg(MEAR1, mear1);
mpc824x_mpc107_setreg(EMEAR1, emear1);
ret = cnt * sizeof(long);
goto Done;
}
}
ret = CFG_MAX_RAM_SIZE;
Done:
return ret;
#else
return (CFG_MAX_RAM_SIZE);
#endif
}
/*
* Initialize PCI Devices, report devices found.
*/
static struct pci_config_table pci_utx8245_config_table[] = {
#ifndef CONFIG_PCI_PNP
{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
pci_cfgfunc_config_device, { PCI_ENET0_IOADDR,
PCI_ENET0_MEMADDR,
PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER }},
{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
pci_cfgfunc_config_device, { PCI_FIREWIRE_IOADDR,
PCI_FIREWIRE_MEMADDR,
PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER }},
#endif /*CONFIG_PCI_PNP*/
{ }
};
static void pci_utx8245_fixup_irq(struct pci_controller *hose, pci_dev_t dev)
{
if (PCI_DEV(dev) == 11)
/* assign serial interrupt line 9 (int25) to FireWire */
pci_hose_write_config_byte(hose, dev, PCI_INTERRUPT_LINE, 25);
else if (PCI_DEV(dev) == 12)
/* assign serial interrupt line 8 (int24) to Ethernet */
pci_hose_write_config_byte(hose, dev, PCI_INTERRUPT_LINE, 24);
}
static struct pci_controller utx8245_hose = {
#ifndef CONFIG_PCI_PNP
config_table: pci_utx8245_config_table,
fixup_irq: pci_utx8245_fixup_irq,
write_byte: pci_hose_write_config_byte
#endif /*CONFIG_PCI_PNP*/
};
void pci_init (void)
{
pci_mpc824x_init(&utx8245_hose);
icache_enable();
}
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