projects / people / ms / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 041a2554 GJ |
1 | /* |
| 2 | * (C) Copyright 2007 | |
| 3 | * Gary Jennejohn, DENX Software Engineering, garyj@denx.de. | |
| 4 | * | |
| 5 | * See file CREDITS for list of people who contributed to this | |
| 6 | * project. | |
| 7 | * | |
| 8 | * This program is free software; you can redistribute it and/or | |
| 9 | * modify it under the terms of the GNU General Public License as | |
| 10 | * published by the Free Software Foundation; either version 2 of | |
| 11 | * the License, or (at your option) any later version. | |
| 12 | * | |
| 13 | * This program is distributed in the hope that it will be useful, | |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 16 | * GNU General Public License for more details. | |
| 17 | * | |
| 18 | * You should have received a copy of the GNU General Public License | |
| 19 | * along with this program; if not, write to the Free Software | |
| 20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
| 21 | * MA 02111-1307 USA | |
| 22 | * | |
| 23 | */ | |
| 24 | /* sil680.c - ide support functions for the Sil0680A controller */ | |
| 25 | ||
| 26 | /* | |
| 27 | * The following parameters must be defined in the configuration file | |
| 28 | * of the target board: | |
| 29 | * | |
| 30 | * #define CFG_IDE_SIL680 | |
| 31 | * | |
| 32 | * #define CONFIG_PCI_PNP | |
| 33 | * NOTE it may also be necessary to define this if the default of 8 is | |
| 34 | * incorrect for the target board (e.g. the sequoia board requires 0). | |
| 35 | * #define CFG_PCI_CACHE_LINE_SIZE 0 | |
| 36 | * | |
| 37 | * #define CONFIG_CMD_IDE | |
| 38 | * #undef CONFIG_IDE_8xx_DIRECT | |
| 39 | * #undef CONFIG_IDE_LED | |
| 40 | * #undef CONFIG_IDE_RESET | |
| 41 | * #define CONFIG_IDE_PREINIT | |
| 42 | * #define CFG_IDE_MAXBUS 2 - modify to suit | |
| 43 | * #define CFG_IDE_MAXDEVICE (CFG_IDE_MAXBUS*2) - modify to suit | |
| 44 | * #define CFG_ATA_BASE_ADDR 0 | |
| 45 | * #define CFG_ATA_IDE0_OFFSET 0 | |
| 46 | * #define CFG_ATA_IDE1_OFFSET 0 | |
| 47 | * #define CFG_ATA_DATA_OFFSET 0 | |
| 48 | * #define CFG_ATA_REG_OFFSET 0 | |
| 49 | * #define CFG_ATA_ALT_OFFSET 0x0004 | |
| 50 | * | |
| 51 | * The mapping for PCI IO-space. | |
| 52 | * NOTE this is the value for the sequoia board. Modify to suit. | |
| 53 | * #define CFG_PCI0_IO_SPACE 0xE8000000 | |
| 54 | */ | |
| 55 | ||
| 56 | #include <common.h> | |
| 57 | #if defined(CFG_IDE_SIL680) | |
| 58 | #include <ata.h> | |
| 59 | #include <ide.h> | |
| 60 | #include <pci.h> | |
| 61 | ||
| 62 | extern ulong ide_bus_offset[CFG_IDE_MAXBUS]; | |
| 63 | ||
| 64 | int ide_preinit (void) | |
| 65 | { | |
| 66 | int status; | |
| 67 | pci_dev_t devbusfn; | |
| 68 | int l; | |
| 69 | ||
| 70 | status = 1; | |
| 71 | for (l = 0; l < CFG_IDE_MAXBUS; l++) { | |
| 72 | ide_bus_offset[l] = -ATA_STATUS; | |
| 73 | } | |
| 74 | devbusfn = pci_find_device (0x1095, 0x0680, 0); | |
| 75 | if (devbusfn != -1) { | |
| 76 | status = 0; | |
| 77 | ||
| 78 | pci_read_config_dword (devbusfn, PCI_BASE_ADDRESS_0, | |
| 79 | (u32 *) &ide_bus_offset[0]); | |
| 80 | ide_bus_offset[0] &= 0xfffffff8; | |
| 81 | ide_bus_offset[0] += CFG_PCI0_IO_SPACE; | |
| 82 | pci_read_config_dword (devbusfn, PCI_BASE_ADDRESS_2, | |
| 83 | (u32 *) &ide_bus_offset[1]); | |
| 84 | ide_bus_offset[1] &= 0xfffffff8; | |
| 85 | ide_bus_offset[1] += CFG_PCI0_IO_SPACE; | |
| 86 | /* init various things - taken from the Linux driver */ | |
| 87 | /* set PIO mode */ | |
| 88 | pci_write_config_byte(devbusfn, 0x80, 0x00); | |
| 89 | pci_write_config_byte(devbusfn, 0x84, 0x00); | |
| 90 | /* IDE0 */ | |
| 91 | pci_write_config_byte(devbusfn, 0xA1, 0x02); | |
| 92 | pci_write_config_word(devbusfn, 0xA2, 0x328A); | |
| 93 | pci_write_config_dword(devbusfn, 0xA4, 0x62DD62DD); | |
| 94 | pci_write_config_dword(devbusfn, 0xA8, 0x43924392); | |
| 95 | pci_write_config_dword(devbusfn, 0xAC, 0x40094009); | |
| 96 | /* IDE1 */ | |
| 97 | pci_write_config_byte(devbusfn, 0xB1, 0x02); | |
| 98 | pci_write_config_word(devbusfn, 0xB2, 0x328A); | |
| 99 | pci_write_config_dword(devbusfn, 0xB4, 0x62DD62DD); | |
| 100 | pci_write_config_dword(devbusfn, 0xB8, 0x43924392); | |
| 101 | pci_write_config_dword(devbusfn, 0xBC, 0x40094009); | |
| 102 | } | |
| 103 | return (status); | |
| 104 | } | |
| 105 | ||
| 106 | void ide_set_reset (int flag) { | |
| 107 | return; | |
| 108 | } | |
| 109 | ||
| 110 | #endif /* CFG_IDE_SIL680 */ |