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/*
* (C) Copyright 2001 Sysgo Real-Time Solutions, GmbH <www.elinos.com>
* Andreas Heppel <aheppel@sysgo.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
*/
/*
* Enable IDE controller of the W83C553F chip.
*/
#include <console/console.h>
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <device/pci_ops.h>
#include "w83c553f.h"
#ifndef CONFIG_IDE_MAXBUS
#define CONFIG_IDE_MAXBUS 2
#endif
#ifndef CONFIG_IDE_MAXDEVICE
#define CONFIG_IDE_MAXDEVICE (CONFIG_IDE_MAXBUS*2)
#endif
uint32_t ide_base[CONFIG_IDE_MAXBUS];
static void
w83c553_ide_init(struct device *dev)
{
unsigned char reg8;
unsigned short reg16;
unsigned int reg32;
printk_info("Configure W83C553F IDE (Function 1)\n");
/*
* Enable native mode on IDE ports and set base address.
*/
reg8 = W83C553F_PIR_P1NL | W83C553F_PIR_P0NL;
pci_write_config8(dev, W83C553F_PIR, reg8);
pci_write_config32(dev, PCI_BASE_ADDRESS_0, 0xffffffff);
reg32 = pci_read_config32(dev, PCI_BASE_ADDRESS_0);
pci_write_config32(dev, PCI_BASE_ADDRESS_0, 0x1f0);
reg32 = pci_read_config32(dev, PCI_BASE_ADDRESS_0);
pci_write_config32(dev, PCI_BASE_ADDRESS_1, 0xffffffff);
reg32 = pci_read_config32(dev, PCI_BASE_ADDRESS_1);
pci_write_config32(dev, PCI_BASE_ADDRESS_1, 0x3f6);
reg32 = pci_read_config32(dev, PCI_BASE_ADDRESS_1);
pci_write_config32(dev, PCI_BASE_ADDRESS_2, 0xffffffff);
reg32 = pci_read_config32(dev, PCI_BASE_ADDRESS_2);
pci_write_config32(dev, PCI_BASE_ADDRESS_2, 0x170);
reg32 = pci_read_config32(dev, PCI_BASE_ADDRESS_2);
pci_write_config32(dev, PCI_BASE_ADDRESS_3, 0xffffffff);
reg32 = pci_read_config32(dev, PCI_BASE_ADDRESS_3);
pci_write_config32(dev, PCI_BASE_ADDRESS_3, 0x376);
reg32 = pci_read_config32(dev, PCI_BASE_ADDRESS_3);
/*
* Set read-ahead duration to 0xff
* Enable P0 and P1
*/
reg32 = 0x00ff0000 | W83C553F_IDECSR_P1EN | W83C553F_IDECSR_P0EN;
pci_write_config32(dev, W83C553F_IDECSR, reg32);
ide_base[0] = pci_read_config32(dev, PCI_BASE_ADDRESS_0);
printk_debug("ide bus offset = 0x%x\n", ide_base[0]);
ide_base[0] &= ~1;
#if CONFIG_IDE_MAXBUS > 1
ide_base[1] = pci_read_config32(dev, PCI_BASE_ADDRESS_2);
ide_base[1] &= ~1;
#endif
/*
* Enable function 1, IDE -> busmastering and IO space access
*/
reg16 = pci_read_config16(dev, PCI_COMMAND);
reg16 |= PCI_COMMAND_MASTER | PCI_COMMAND_IO;
pci_write_config16(dev, PCI_COMMAND, reg16);
printk_info("IDE configuration complete\n");
}
struct device_operations w83c553_ide_ops = {
.read_resources = pci_dev_read_resources,
.set_resources = pci_dev_set_resources,
.enable_resources = pci_dev_enable_resources,
.init = w83c553_ide_init,
.scan_bus = 0,
};
struct pci_driver w83c553f_ide_pci_driver __pci_driver = {
/* w83c553f_ide */
.ops = &w83c553_ide_ops,
.device = PCI_DEVICE_ID_WINBOND_82C105,
.vendor = PCI_VENDOR_ID_WINBOND,
};
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