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cos / mirrors / cros / chromiumos / third_party / coreboot / 7274ba360d51d8ca8278708225661d9291fd3c60 / . / src / northbridge / via / vx800 / ide.c
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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2009 One Laptop per Child, Association, Inc.
*
* 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; version 2 of the License.
*
* 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 <device/device.h>
#include <device/pci.h>
#include <device/pci_ops.h>
#include <device/pci_ids.h>
#include <console/console.h>
#include <arch/io.h>
#include "vx800.h"
static const u8 idedevicepcitable[16 * 12] = {
/*
0x02, 0x00, 0x00, 0x00, 0x00, 0x82, 0x00, 0x00,
0x00, 0x00, 0xA8, 0xA8, 0xF0, 0x00, 0x00, 0xB6,
0x00, 0x00, 0x01, 0x21, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x01, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x01, 0x09, 0xC4, 0x06, 0x11, 0x09, 0xC4,
0x00, 0xC2, 0xF9, 0x01, 0x10, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x0C, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x02, 0x01, 0x24, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
*/
0x02, 0x00, 0x00, 0x00, 0x00, 0x82, 0x00, 0x00,
0x00, 0x00, 0x99, 0x20, 0xf0, 0x00, 0x00, 0x20,
0x00, 0x00, 0x17, 0xF1, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x01, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x01, 0x09, 0xC4, 0x06, 0x11, 0x09, 0xC4,
0x00, 0xc2, 0x09, 0x01, 0x10, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x0c, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x02, 0x01, 0x24, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* Legacy BIOS XP PCI value */
/*
0x02, 0x00, 0x00, 0x00, 0x00, 0x82, 0x00, 0x00,
0x00, 0x00, 0xa8, 0x20, 0x00, 0x00, 0x00, 0xb6,
0x00, 0x00, 0x16, 0xF1, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x01, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x01, 0x09, 0xC4, 0x06, 0x11, 0x09, 0xC4,
0x00, 0x02, 0x09, 0x00, 0x18, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x34, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x02, 0x01, 0x24, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
*/
/* ROM legacy BIOS on cn_8562b */
/*
0x03, 0x00, 0x00, 0x00, 0x00, 0x82, 0x00, 0x00,
0x00, 0x00, 0x99, 0x20, 0x60, 0x00, 0x00, 0x20,
0x00, 0x00, 0x1E, 0xF1, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x01, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x01, 0x09, 0xC4, 0x06, 0x11, 0x09, 0xC4,
0x00, 0x02, 0x09, 0x01, 0x18, 0x0C, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x34, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x02, 0x01, 0x24, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
*/
/* From legacy BIOS on c7_8562b */
/*
0x03, 0x00, 0x00, 0x00, 0x00, 0x82, 0x00, 0x00,
0x00, 0x00, 0x5E, 0x20, 0x60, 0x00, 0x00, 0xB6,
0x00, 0x00, 0x1E, 0xF1, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x01, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x01, 0x09, 0xC4, 0x06, 0x11, 0x09, 0xC4,
0x00, 0x02, 0x09, 0x01, 0x18, 0x0C, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x34, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x02, 0x01, 0x24, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
*/
};
static void ide_init(struct device *dev)
{
u8 i, data;
printk(BIOS_INFO, "ide_init\n");
/* these 3 lines help to keep interl back door for DID VID SUBID untouched */
u16 data16_1, data16_2;
data16_1 = pci_read_config16(dev, 0xba);
data16_2 = pci_read_config16(dev, 0xbe);
for (i = 0; i < (16 * 12); i++) {
pci_write_config8(dev, 0x40 + i, idedevicepcitable[i]);
}
//pci_write_config8(dev, 0x0d, 0x20);
data = pci_read_config8(dev, 0x0d);
data &= 0x0f;
data |= 0x40;
pci_write_config8(dev, 0x0d, data);
//these 2 lines help to keep interl back door for DID VID SUBID untouched
pci_write_config16(dev, 0xba, data16_1);
pci_write_config16(dev, 0xbe, data16_2);
/* Force interrupts to use compat mode. */
pci_write_config8(dev, PCI_INTERRUPT_PIN, 0x0);
pci_write_config8(dev, PCI_INTERRUPT_LINE, 0xff);
#if 0
u8 enables;
u32 cablesel;
pci_write_config16(dev, 0x04, 0x0007);
enables = pci_read_config8(dev, IDE_CS) & ~0x3;
enables |= 0x02;
pci_write_config8(dev, IDE_CS, enables);
enables = pci_read_config8(dev, IDE_CS);
printk(BIOS_DEBUG, "Enables in reg 0x40 read back as 0x%x\n", enables);
/* Enable only compatibility mode. */
enables = pci_read_config8(dev, IDE_CONF_II);
enables &= ~0xc0;
pci_write_config8(dev, IDE_CONF_II, enables);
enables = pci_read_config8(dev, IDE_CONF_II);
printk(BIOS_DEBUG, "Enables in reg 0x42 read back as 0x%x\n", enables);
/* Enable prefetch buffers. */
enables = pci_read_config8(dev, IDE_CONF_I);
enables |= 0xf0;
pci_write_config8(dev, IDE_CONF_I, enables);
/* Flush FIFOs at half. */
enables = pci_read_config8(dev, IDE_CONF_FIFO);
enables &= 0xf0;
enables |= (1 << 2) | (1 << 0);
pci_write_config8(dev, IDE_CONF_FIFO, enables);
/* PIO read prefetch counter, Bus Master IDE Status Reg. Read Retry. */
enables = pci_read_config8(dev, IDE_MISC_I);
enables &= 0xe2;
enables |= (1 << 4) | (1 << 3);
pci_write_config8(dev, IDE_MISC_I, enables);
/* Use memory read multiple, Memory-Write-and-Invalidate. */
enables = pci_read_config8(dev, IDE_MISC_II);
enables |= (1 << 2) | (1 << 3);
pci_write_config8(dev, IDE_MISC_II, enables);
/* Force interrupts to use compat mode. */
pci_write_config8(dev, PCI_INTERRUPT_PIN, 0x0);
pci_write_config8(dev, PCI_INTERRUPT_LINE, 0xff);
/* Cable guy... */
cablesel = pci_read_config32(dev, IDE_UDMA);
cablesel &= ~((1 << 28) | (1 << 20) | (1 << 12) | (1 << 4));
cablesel |= (sb->ide0_80pin_cable << 28) |
(sb->ide0_80pin_cable << 20) |
(sb->ide1_80pin_cable << 12) | (sb->ide1_80pin_cable << 4);
pci_write_config32(dev, IDE_UDMA, cablesel);
#endif
}
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 = 0,
.ops_pci = 0,
};
static const struct pci_driver via_ide_driver __pci_driver = {
.ops = &ide_ops,
.vendor = PCI_VENDOR_ID_VIA,
.device = PCI_DEVICE_ID_VIA_VX855_IDE,
};