diff options
Diffstat (limited to 'src/southbridge/amd/cs5530/cs5530_ide.c')
| -rw-r--r-- | src/southbridge/amd/cs5530/cs5530_ide.c | 72 |
1 files changed, 60 insertions, 12 deletions
diff --git a/src/southbridge/amd/cs5530/cs5530_ide.c b/src/southbridge/amd/cs5530/cs5530_ide.c index e1b932d942..2d8b2c4622 100644 --- a/src/southbridge/amd/cs5530/cs5530_ide.c +++ b/src/southbridge/amd/cs5530/cs5530_ide.c @@ -1,30 +1,78 @@ +/* + * This file is part of the LinuxBIOS project. + * + * Copyright (C) 2007 Uwe Hermann <uwe@hermann-uwe.de> + * + * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + #include <console/console.h> #include <device/device.h> #include <device/pci.h> #include <device/pci_ids.h> -#include <device/pci_ops.h> #include "cs5530.h" +/** + * Initialize the IDE controller. + * + * Depending on the configuration variables 'ide0_enable' and 'ide1_enable' + * enable or disable the primary and secondary IDE interface, respectively. + * + * @param dev The device to use. + */ static void ide_init(struct device *dev) { - printk_spew("cs5530_ide: %s\n", __FUNCTION__); -} + uint8_t reg8; + struct southbridge_amd_cs5530_config *conf = dev->chip_info; -static void ide_enable(struct device *dev) -{ - printk_spew("cs5530_ide: %s\n", __FUNCTION__); + reg8 = pci_read_config8(dev, DECODE_CONTROL_REG2); + + /* Enable/disable the primary IDE interface. */ + if (conf->ide0_enable) { + reg8 |= PRIMARY_IDE_ENABLE; + } else { + reg8 &= ~(PRIMARY_IDE_ENABLE); + } + + /* Enable/disable the secondary IDE interface. */ + if (conf->ide1_enable) { + reg8 |= SECONDARY_IDE_ENABLE; + } else { + reg8 &= ~(SECONDARY_IDE_ENABLE); + } + + pci_write_config8(dev, DECODE_CONTROL_REG2, reg8); + + printk_info("%s IDE interface %s\n", "Primary", + conf->ide0_enable ? "enabled" : "disabled"); + printk_info("%s IDE interface %s\n", "Secondary", + conf->ide1_enable ? "enabled" : "disabled"); } static struct device_operations ide_ops = { - .read_resources = pci_dev_read_resources, - .set_resources = pci_dev_set_resources, - .enable_resources = pci_dev_enable_resources, - .init = ide_init, - .enable = ide_enable, + .read_resources = pci_dev_read_resources, + .set_resources = pci_dev_set_resources, + .enable_resources = pci_dev_enable_resources, + .init = ide_init, + .enable = 0, + .scan_bus = scan_static_bus, + .ops_pci = 0, }; static struct pci_driver ide_driver __pci_driver = { - .ops = &ide_ops, + .ops = &ide_ops, .vendor = PCI_VENDOR_ID_CYRIX, .device = PCI_DEVICE_ID_CYRIX_5530_IDE, }; |