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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2008 coresystems GmbH
*
* 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 "i82801gx.h"
typedef struct southbridge_intel_i82801gx_config config_t;
static void ide_init(struct device *dev)
{
u16 ideTimingConfig;
u32 reg32;
/* Get the chip configuration */
config_t *config = dev->chip_info;
int enable_primary = config->ide_enable_primary;
int enable_secondary = config->ide_enable_secondary;
reg32 = pci_read_config32(dev, PCI_COMMAND);
pci_write_config32(dev, PCI_COMMAND, reg32 | PCI_COMMAND_IO | PCI_COMMAND_MASTER);
/* Native Capable, but not enabled. */
pci_write_config8(dev, 0x09, 0x8a);
ideTimingConfig = pci_read_config16(dev, IDE_TIM_PRI);
ideTimingConfig &= ~IDE_DECODE_ENABLE;
ideTimingConfig |= IDE_SITRE;
if (enable_primary) {
/* Enable primary IDE interface. */
ideTimingConfig |= IDE_DECODE_ENABLE;
ideTimingConfig |= (2 << 12); // ISP = 3 clocks
ideTimingConfig |= (3 << 8); // RCT = 1 clock
ideTimingConfig |= (1 << 1); // IE0
ideTimingConfig |= (1 << 0); // TIME0
printk_debug("IDE0 ");
}
pci_write_config16(dev, IDE_TIM_PRI, ideTimingConfig);
ideTimingConfig = pci_read_config16(dev, IDE_TIM_SEC);
ideTimingConfig &= ~IDE_DECODE_ENABLE;
ideTimingConfig |= IDE_SITRE;
if (enable_secondary) {
/* Enable secondary IDE interface. */
ideTimingConfig |= IDE_DECODE_ENABLE;
ideTimingConfig |= (2 << 12); // ISP = 3 clocks
ideTimingConfig |= (3 << 8); // RCT = 1 clock
ideTimingConfig |= (1 << 1); // IE0
ideTimingConfig |= (1 << 0); // TIME0
printk_debug("IDE1 ");
}
pci_write_config16(dev, IDE_TIM_SEC, ideTimingConfig);
/* Set IDE I/O Configuration */
if (enable_secondary)
reg32 = SIG_MODE_NORMAL | FAST_PCB1 | FAST_PCB0 | PCB1 | PCB0;
else
reg32 = SIG_MODE_NORMAL | FAST_PCB1 | PCB1;
pci_write_config32(dev, IDE_CONFIG, reg32);
/* Set Interrupt Line */
/* Interrupt Pin is set by D31IP.PIP */
pci_write_config32(dev, INTR_LN, 0xff); /* Int 15 */
}
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,
.scan_bus = 0,
.enable = i82801gx_enable,
};
/* 82801GB/GR/GDH/GBM/GHM/GU (ICH7/ICH7R/ICH7DH/ICH7-M/ICH7-M DH/ICH7-U) */
static const struct pci_driver i82801gx_ide __pci_driver = {
.ops = &ide_ops,
.vendor = PCI_VENDOR_ID_INTEL,
.device = 0x27df,
};
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