/* * Copyright 2006 Freescale Semiconductor. * * 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 <pci.h> /* Config the VIA chip */ void mpc85xx_config_via(struct pci_controller *hose, pci_dev_t dev, struct pci_config_table *tab) { pci_dev_t bridge; unsigned int cmdstat; /* Enable USB and IDE functions */ pci_hose_write_config_byte(hose, dev, 0x48, 0x08); pci_hose_read_config_dword(hose, dev, PCI_COMMAND, &cmdstat); cmdstat |= PCI_COMMAND_IO | PCI_COMMAND_MEMORY| PCI_COMMAND_MASTER; pci_hose_write_config_dword(hose, dev, PCI_COMMAND, cmdstat); pci_hose_write_config_byte(hose, dev, PCI_CACHE_LINE_SIZE, 0x08); pci_hose_write_config_byte(hose, dev, PCI_LATENCY_TIMER, 0x80); /* * Force the backplane P2P bridge to have a window * open from 0x00000000-0x00001fff in PCI I/O space. * This allows legacy I/O (i8259, etc) on the VIA * southbridge to be accessed. */ bridge = PCI_BDF(0,BRIDGE_ID,0); pci_hose_write_config_byte(hose, bridge, PCI_IO_BASE, 0); pci_hose_write_config_word(hose, bridge, PCI_IO_BASE_UPPER16, 0); pci_hose_write_config_byte(hose, bridge, PCI_IO_LIMIT, 0x10); pci_hose_write_config_word(hose, bridge, PCI_IO_LIMIT_UPPER16, 0); } /* Function 1, IDE */ void mpc85xx_config_via_usbide(struct pci_controller *hose, pci_dev_t dev, struct pci_config_table *tab) { pciauto_config_device(hose, dev); /* * Since the P2P window was forced to cover the fixed * legacy I/O addresses, it is necessary to manually * place the base addresses for the IDE and USB functions * within this window. */ pci_hose_write_config_dword(hose, dev, PCI_BASE_ADDRESS_0, 0x1ff8); pci_hose_write_config_dword(hose, dev, PCI_BASE_ADDRESS_1, 0x1ff4); pci_hose_write_config_dword(hose, dev, PCI_BASE_ADDRESS_2, 0x1fe8); pci_hose_write_config_dword(hose, dev, PCI_BASE_ADDRESS_3, 0x1fe4); pci_hose_write_config_dword(hose, dev, PCI_BASE_ADDRESS_4, 0x1fd0); } /* Function 2, USB ports 0-1 */ void mpc85xx_config_via_usb(struct pci_controller *hose, pci_dev_t dev, struct pci_config_table *tab) { pciauto_config_device(hose, dev); pci_hose_write_config_dword(hose, dev, PCI_BASE_ADDRESS_4, 0x1fa0); } /* Function 3, USB ports 2-3 */ void mpc85xx_config_via_usb2(struct pci_controller *hose, pci_dev_t dev, struct pci_config_table *tab) { pciauto_config_device(hose, dev); pci_hose_write_config_dword(hose, dev, PCI_BASE_ADDRESS_4, 0x1f80); } /* Function 5, Power Management */ void mpc85xx_config_via_power(struct pci_controller *hose, pci_dev_t dev, struct pci_config_table *tab) { pciauto_config_device(hose, dev); pci_hose_write_config_dword(hose, dev, PCI_BASE_ADDRESS_0, 0x1e00); pci_hose_write_config_dword(hose, dev, PCI_BASE_ADDRESS_1, 0x1dfc); pci_hose_write_config_dword(hose, dev, PCI_BASE_ADDRESS_2, 0x1df8); } /* Function 6, AC97 Interface */ void mpc85xx_config_via_ac97(struct pci_controller *hose, pci_dev_t dev, struct pci_config_table *tab) { pciauto_config_device(hose, dev); pci_hose_write_config_dword(hose, dev, PCI_BASE_ADDRESS_0, 0x1c00); }