diff options
Diffstat (limited to 'src/southbridge/nvidia/mcp55/ide.c')
| -rw-r--r-- | src/southbridge/nvidia/mcp55/ide.c | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/src/southbridge/nvidia/mcp55/ide.c b/src/southbridge/nvidia/mcp55/ide.c new file mode 100644 index 0000000000..90dd2bf48d --- /dev/null +++ b/src/southbridge/nvidia/mcp55/ide.c @@ -0,0 +1,87 @@ +/* + * 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 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 = &mcp55_pci_ops, +}; + +static const struct pci_driver ide_driver __pci_driver = { + .ops = &ide_ops, + .vendor = PCI_VENDOR_ID_NVIDIA, + .device = PCI_DEVICE_ID_NVIDIA_MCP55_IDE, +}; + |