a3000.c

u-boot-1.1.6 源码包

/*
 * (C) Copyright 2001
 * Rob Taylor, Flying Pig Systems. [e-mail].
 *
 * Modified during 2003 by
 * Ken Chou, [e-mail]
 *
 * 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 <pci.h>

int checkboard (void)
{
	ulong busfreq  = get_bus_freq(0);
	char  buf[32];

	printf("Board: A3000 Local Bus at %s MHz\n", strmhz(buf, busfreq));
	return 0;

}

long int initdram (int board_type)
{
	long size;
	long new_bank0_end;
	long mear1;
	long emear1;

	size = get_ram_size(CFG_SDRAM_BASE, CFG_MAX_RAM_SIZE);

	new_bank0_end = size - 1;
	mear1 = mpc824x_mpc107_getreg(MEAR1);
	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);

	return (size);
}

/*
 * Initialize PCI Devices
 */
#ifndef CONFIG_PCI_PNP
static struct pci_config_table pci_a3000_config_table[] = {
	/* vendor, device, class */
	/* bus, dev, func */
	{ PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_83815, PCI_ANY_ID,
	  PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,	/* dp83815 eth0 divice */
	  pci_cfgfunc_config_device, { PCI_ENET0_IOADDR,
				       PCI_ENET0_MEMADDR,
				       PCI_COMMAND_IO |
				       PCI_COMMAND_MEMORY |
				       PCI_COMMAND_MASTER }},
	{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
	  PCI_ANY_ID, 0x14, PCI_ANY_ID,		/* PCI slot1 */
	  pci_cfgfunc_config_device, { PCI_ENET1_IOADDR,
				       PCI_ENET1_MEMADDR,
				       PCI_COMMAND_IO |
				       PCI_COMMAND_MEMORY |
				       PCI_COMMAND_MASTER }},
	{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
	  PCI_ANY_ID, 0x15, PCI_ANY_ID, 	/* PCI slot2 */
	  pci_cfgfunc_config_device, { PCI_ENET2_IOADDR,
				       PCI_ENET2_MEMADDR,
				       PCI_COMMAND_IO |
				       PCI_COMMAND_MEMORY |
				       PCI_COMMAND_MASTER }},
	{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
	  PCI_ANY_ID, 0x16, PCI_ANY_ID,		/* PCI slot3 */
	  pci_cfgfunc_config_device, { PCI_ENET3_IOADDR,
				       PCI_ENET3_MEMADDR,
				       PCI_COMMAND_IO |
				       PCI_COMMAND_MEMORY |
				       PCI_COMMAND_MASTER }},
	{ }
};
#endif

struct pci_controller hose = {
#ifndef CONFIG_PCI_PNP
	config_table: pci_a3000_config_table,
#endif
};

void pci_init_board(void)
{
	pci_mpc824x_init(&hose);
}