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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2004 Tyan Computer
* Written by Yinghai Lu <yhlu@tyan.com> for Tyan Computer.
* Copyright (C) 2006,2007 AMD
* Written by Yinghai Lu <yinghai.lu@amd.com> for AMD.
*
* 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 "mcp55.h"
static void ide_init(struct device *dev)
{
struct southbridge_nvidia_mcp55_config *conf;
/* Enable ide devices so the linux ide driver will work */
uint32_t dword;
uint16_t word;
uint8_t byte;
conf = dev->chip_info;
word = pci_read_config16(dev, 0x50);
/* Ensure prefetch is disabled */
word &= ~((1 << 15) | (1 << 13));
if (conf->ide1_enable) {
/* Enable secondary ide interface */
word |= (1<<0);
printk(BIOS_DEBUG, "IDE1 \t");
}
if (conf->ide0_enable) {
/* Enable primary ide interface */
word |= (1<<1);
printk(BIOS_DEBUG, "IDE0\n");
}
word |= (1<<12);
word |= (1<<14);
pci_write_config16(dev, 0x50, word);
byte = 0x20 ; // Latency: 64-->32
pci_write_config8(dev, 0xd, byte);
dword = pci_read_config32(dev, 0xf8);
dword |= 12;
pci_write_config32(dev, 0xf8, dword);
#if CONFIG_PCI_ROM_RUN == 1
pci_dev_init(dev);
#endif
}
static void lpci_set_subsystem(device_t dev, unsigned vendor, unsigned device)
{
pci_write_config32(dev, 0x40,
((device & 0xffff) << 16) | (vendor & 0xffff));
}
static struct pci_operations lops_pci = {
.set_subsystem = lpci_set_subsystem,
};
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 = mcp55_enable,
.ops_pci = &lops_pci,
};
static const struct pci_driver ide_driver __pci_driver = {
.ops = &ide_ops,
.vendor = PCI_VENDOR_ID_NVIDIA,
.device = PCI_DEVICE_ID_NVIDIA_MCP55_IDE,
};
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