diff options
Diffstat (limited to 'u-boot/board/linkstation/ide.c')
| -rw-r--r-- | u-boot/board/linkstation/ide.c | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/u-boot/board/linkstation/ide.c b/u-boot/board/linkstation/ide.c new file mode 100644 index 0000000..568fdf5 --- /dev/null +++ b/u-boot/board/linkstation/ide.c @@ -0,0 +1,101 @@ +/* + * (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> + +#ifdef CONFIG_CMD_IDE +#include <ata.h> +#include <ide.h> +#include <pci.h> + +#define IT8212_PCI_CpuCONTROL 0x5e +#define IT8212_PCI_PciModeCONTROL 0x50 +#define IT8212_PCI_IdeIoCONFIG 0x40 +#define IT8212_PCI_IdeBusSkewCONTROL 0x4c +#define IT8212_PCI_IdeDrivingCURRENT 0x42 + +extern ulong ide_bus_offset[CONFIG_SYS_IDE_MAXBUS]; +extern struct pci_controller hose; + +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(PCI_VENDOR_ID_CMD, PCI_DEVICE_ID_SII_680, 0); + if (devbusfn == -1) + devbusfn = pci_find_device(PCI_VENDOR_ID_ITE,PCI_DEVICE_ID_ITE_8212,0); + if (devbusfn != -1) { + u32 ide_bus_offset32; + + status = 0; + + pci_read_config_dword (devbusfn, PCI_BASE_ADDRESS_0, + &ide_bus_offset32); + ide_bus_offset[0] = ide_bus_offset32 & 0xfffffffe; + ide_bus_offset[0] = pci_hose_bus_to_phys(&hose, + ide_bus_offset[0] & 0xfffffffe, + PCI_REGION_IO); + pci_read_config_dword(devbusfn, PCI_BASE_ADDRESS_2, + (u32 *) &ide_bus_offset[1]); + ide_bus_offset[1] &= 0xfffffffe; + ide_bus_offset[1] = pci_hose_bus_to_phys(&hose, + ide_bus_offset[1] & 0xfffffffe, + PCI_REGION_IO); + } + + if (pci_find_device (PCI_VENDOR_ID_ITE, PCI_DEVICE_ID_ITE_8212, 0) != -1) { + pci_write_config_byte(devbusfn, IT8212_PCI_CpuCONTROL, 0x01); + pci_write_config_byte(devbusfn, IT8212_PCI_PciModeCONTROL, 0x00); + pci_write_config_word(devbusfn, PCI_COMMAND, 0x0047); +#ifdef CONFIG_IT8212_SECONDARY_ENABLE + pci_write_config_word(devbusfn, IT8212_PCI_IdeIoCONFIG, 0xA0F3); +#else + pci_write_config_word(devbusfn, IT8212_PCI_IdeIoCONFIG, 0x8031); +#endif + pci_write_config_dword(devbusfn, IT8212_PCI_IdeBusSkewCONTROL, 0x02040204); +/* __LS_COMMENT__ BUFFALO changed 2004.11.10 changed for EMI */ + pci_write_config_byte(devbusfn, IT8212_PCI_IdeDrivingCURRENT, 0x36); /* 10mA */ +/* pci_write_config_byte(dev, IT8212_PCI_IdeDrivingCURRENT, 0x09); */ /* 4mA */ +/* pci_write_config_byte(dev, IT8212_PCI_IdeDrivingCURRENT, 0x12); */ /* 6mA */ +/* pci_write_config_byte(dev, IT8212_PCI_IdeDrivingCURRENT, 0x24); */ /* 6mA,2mA */ +/* pci_write_config_byte(dev, IT8212_PCI_IdeDrivingCURRENT, 0x2D); */ /* 8mA,4mA */ + pci_write_config_byte(devbusfn, PCI_LATENCY_TIMER, 0x00); + } + + return (status); +} + +void ide_set_reset (int flag) { + return; +} + +#endif /* CONFIG_CMD_IDE */ |