| Zheng Bao | d098575 | 2011-01-20 04:45:48 +0000 | [diff] [blame] | 1 | /* |
| 2 | * This file is part of the coreboot project. |
| 3 | * |
| 4 | * Copyright (C) 2010 Advanced Micro Devices, Inc. |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; version 2 of the License. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| Zheng Bao | d098575 | 2011-01-20 04:45:48 +0000 | [diff] [blame] | 14 | */ |
| 15 | |
| 16 | #include <console/console.h> |
| 17 | #include <device/device.h> |
| 18 | #include <device/pci.h> |
| 19 | #include <device/pci_ids.h> |
| 20 | #include <device/pci_ops.h> |
| 21 | #include "sb800.h" |
| 22 | |
| 23 | static void ide_init(struct device *dev) |
| 24 | { |
| 25 | struct southbridge_amd_sb800_config *conf; |
| 26 | /* Enable ide devices so the linux ide driver will work */ |
| 27 | u32 dword; |
| 28 | u8 byte; |
| 29 | |
| 30 | conf = dev->chip_info; |
| 31 | |
| 32 | /* RPR9.1 disable MSI */ |
| 33 | /* TODO: For A14, it should set as 1. I doubt it. */ |
| 34 | dword = pci_read_config32(dev, 0x70); |
| 35 | dword &= ~(1 << 16); |
| 36 | pci_write_config32(dev, 0x70, dword); |
| 37 | |
| 38 | /* Ultra DMA mode */ |
| 39 | /* enable UDMA */ |
| 40 | byte = pci_read_config8(dev, 0x54); |
| 41 | byte |= 1 << 0; |
| 42 | pci_write_config8(dev, 0x54, byte); |
| 43 | |
| 44 | /* Enable I/O Access&& Bus Master */ |
| 45 | dword = pci_read_config16(dev, 0x4); |
| 46 | dword |= 1 << 2; |
| 47 | pci_write_config16(dev, 0x4, dword); |
| 48 | |
| 49 | /* set ide as primary, if you want to boot from IDE, you'd better set it |
| 50 | * in mainboard/Config.lb */ |
| 51 | if (conf->boot_switch_sata_ide == 1) { |
| 52 | byte = pci_read_config8(dev, 0xAD); |
| 53 | byte |= 1 << 4; |
| 54 | pci_write_config8(dev, 0xAD, byte); |
| 55 | } |
| Zheng Bao | d098575 | 2011-01-20 04:45:48 +0000 | [diff] [blame] | 56 | } |
| 57 | |
| 58 | static struct pci_operations lops_pci = { |
| 59 | .set_subsystem = pci_dev_set_subsystem, |
| 60 | }; |
| 61 | |
| 62 | static struct device_operations ide_ops = { |
| 63 | .read_resources = pci_dev_read_resources, |
| 64 | .set_resources = pci_dev_set_resources, |
| 65 | .enable_resources = pci_dev_enable_resources, |
| 66 | .init = ide_init, |
| 67 | .scan_bus = 0, |
| 68 | .ops_pci = &lops_pci, |
| 69 | }; |
| 70 | |
| 71 | static const struct pci_driver ide_driver __pci_driver = { |
| 72 | .ops = &ide_ops, |
| 73 | .vendor = PCI_VENDOR_ID_ATI, |
| 74 | .device = PCI_DEVICE_ID_ATI_SB800_IDE, |
| 75 | }; |