/* * (C) Copyright 2007 * Gary Jennejohn, DENX Software Engineering, garyj@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 * */ /* sil680.c - ide support functions for the Sil0680A controller */ /* * The following parameters must be defined in the configuration file * of the target board: * * #define CONFIG_IDE_SIL680 * * #define CONFIG_PCI_PNP * NOTE it may also be necessary to define this if the default of 8 is * incorrect for the target board (e.g. the sequoia board requires 0). * #define CONFIG_SYS_PCI_CACHE_LINE_SIZE 0 * * #define CONFIG_CMD_IDE * #undef CONFIG_IDE_8xx_DIRECT * #undef CONFIG_IDE_LED * #undef CONFIG_IDE_RESET * #define CONFIG_IDE_PREINIT * #define CONFIG_SYS_IDE_MAXBUS 2 - modify to suit * #define CONFIG_SYS_IDE_MAXDEVICE (CONFIG_SYS_IDE_MAXBUS*2) - modify to suit * #define CONFIG_SYS_ATA_BASE_ADDR 0 * #define CONFIG_SYS_ATA_IDE0_OFFSET 0 * #define CONFIG_SYS_ATA_IDE1_OFFSET 0 * #define CONFIG_SYS_ATA_DATA_OFFSET 0 * #define CONFIG_SYS_ATA_REG_OFFSET 0 * #define CONFIG_SYS_ATA_ALT_OFFSET 0x0004 * * The mapping for PCI IO-space. * NOTE this is the value for the sequoia board. Modify to suit. * #define CONFIG_SYS_PCI0_IO_SPACE 0xE8000000 */ #include <common.h> #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; for (l = 0; l < CONFIG_SYS_IDE_MAXBUS; l++) { ide_bus_offset[l] = -ATA_STATUS; } devbusfn = pci_find_device (0x1095, 0x0680, 0); if (devbusfn != -1) { status = 0; pci_read_config_dword (devbusfn, PCI_BASE_ADDRESS_0, (u32 *) &ide_bus_offset[0]); ide_bus_offset[0] &= 0xfffffff8; ide_bus_offset[0] += CONFIG_SYS_PCI0_IO_SPACE; pci_read_config_dword (devbusfn, PCI_BASE_ADDRESS_2, (u32 *) &ide_bus_offset[1]); ide_bus_offset[1] &= 0xfffffff8; ide_bus_offset[1] += CONFIG_SYS_PCI0_IO_SPACE; /* init various things - taken from the Linux driver */ /* set PIO mode */ pci_write_config_byte(devbusfn, 0x80, 0x00); pci_write_config_byte(devbusfn, 0x84, 0x00); /* IDE0 */ pci_write_config_byte(devbusfn, 0xA1, 0x02); pci_write_config_word(devbusfn, 0xA2, 0x328A); pci_write_config_dword(devbusfn, 0xA4, 0x62DD62DD); pci_write_config_dword(devbusfn, 0xA8, 0x43924392); pci_write_config_dword(devbusfn, 0xAC, 0x40094009); /* IDE1 */ pci_write_config_byte(devbusfn, 0xB1, 0x02); pci_write_config_word(devbusfn, 0xB2, 0x328A); pci_write_config_dword(devbusfn, 0xB4, 0x62DD62DD); pci_write_config_dword(devbusfn, 0xB8, 0x43924392); pci_write_config_dword(devbusfn, 0xBC, 0x40094009); } return (status); } void ide_set_reset (int flag) { return; }