/* * (C) Copyright 2000 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * * 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 * */ /* ide.c - ide support functions */ #include <common.h> #if defined(CONFIG_CMD_IDE) #include <ata.h> #include <ide.h> #include <pci.h> extern ulong ide_bus_offset[CONFIG_SYS_IDE_MAXBUS]; int ide_preinit (void) { int status; pci_dev_t devbusfn; int l; status = 1; if (CPCI750_SLAVE_TEST != 0) return status; for (l = 0; l < CONFIG_SYS_IDE_MAXBUS; l++) { ide_bus_offset[l] = -ATA_STATUS; } devbusfn = pci_find_device (0x1103, 0x0004, 0); if (devbusfn == -1) devbusfn = pci_find_device (0x1095, 0x3114, 0); if (devbusfn != -1) { ulong *ide_bus_offset_ptr; status = 0; ide_bus_offset_ptr = &ide_bus_offset[0]; pci_read_config_dword (devbusfn, PCI_BASE_ADDRESS_0, (u32 *)ide_bus_offset_ptr); ide_bus_offset[0] &= 0xfffffffe; ide_bus_offset[0] += CONFIG_SYS_PCI0_IO_SPACE; ide_bus_offset_ptr = &ide_bus_offset[1]; pci_read_config_dword (devbusfn, PCI_BASE_ADDRESS_2, (u32 *)ide_bus_offset_ptr); ide_bus_offset[1] &= 0xfffffffe; ide_bus_offset[1] += CONFIG_SYS_PCI0_IO_SPACE; } return status; } void ide_set_reset (int flag) { return; } #endif /* of CONFIG_CMDS_IDE */