Morgan Tsai | 1602dd5 | 2007-10-29 21:00:14 +0000 | [diff] [blame] | 1 | /* |
Stefan Reinauer | 7e61e45 | 2008-01-18 10:35:56 +0000 | [diff] [blame] | 2 | * This file is part of the coreboot project. |
Morgan Tsai | 1602dd5 | 2007-10-29 21:00:14 +0000 | [diff] [blame] | 3 | * |
| 4 | * Copyright (C) 2004 Tyan Computer |
| 5 | * Written by Yinghai Lu <yhlu@tyan.com> for Tyan Computer. |
| 6 | * Copyright (C) 2006,2007 AMD |
| 7 | * Written by Yinghai Lu <yinghai.lu@amd.com> for AMD. |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or modify |
| 10 | * it under the terms of the GNU General Public License as published by |
| 11 | * the Free Software Foundation; either version 2 of the License, or |
| 12 | * (at your option) any later version. |
| 13 | * |
| 14 | * This program is distributed in the hope that it will be useful, |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | * GNU General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License |
| 20 | * along with this program; if not, write to the Free Software |
| 21 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 22 | */ |
| 23 | |
Uwe Hermann | dc3aa7a | 2010-09-25 23:47:15 +0000 | [diff] [blame] | 24 | /* TODO: Check whether this actually works (might be copy-paste leftover). */ |
| 25 | |
| 26 | #include <stdint.h> |
Patrick Georgi | 5692c57 | 2010-10-05 13:40:31 +0000 | [diff] [blame^] | 27 | #include <arch/io.h> |
| 28 | #include <arch/romcc_io.h> |
Uwe Hermann | dc3aa7a | 2010-09-25 23:47:15 +0000 | [diff] [blame] | 29 | #include <usbdebug.h> |
| 30 | #include <device/pci_def.h> |
Patrick Georgi | 5692c57 | 2010-10-05 13:40:31 +0000 | [diff] [blame^] | 31 | #include "sis966.h" |
Uwe Hermann | dc3aa7a | 2010-09-25 23:47:15 +0000 | [diff] [blame] | 32 | |
Stefan Reinauer | 0867062 | 2009-06-30 15:17:49 +0000 | [diff] [blame] | 33 | #if CONFIG_HT_CHAIN_END_UNITID_BASE < CONFIG_HT_CHAIN_UNITID_BASE |
Uwe Hermann | dc3aa7a | 2010-09-25 23:47:15 +0000 | [diff] [blame] | 34 | #define SIS966_DEVN_BASE CONFIG_HT_CHAIN_END_UNITID_BASE |
Morgan Tsai | 1602dd5 | 2007-10-29 21:00:14 +0000 | [diff] [blame] | 35 | #else |
Uwe Hermann | dc3aa7a | 2010-09-25 23:47:15 +0000 | [diff] [blame] | 36 | #define SIS966_DEVN_BASE CONFIG_HT_CHAIN_UNITID_BASE |
Morgan Tsai | 1602dd5 | 2007-10-29 21:00:14 +0000 | [diff] [blame] | 37 | #endif |
| 38 | |
Uwe Hermann | dc3aa7a | 2010-09-25 23:47:15 +0000 | [diff] [blame] | 39 | void set_debug_port(unsigned int port) |
Morgan Tsai | 1602dd5 | 2007-10-29 21:00:14 +0000 | [diff] [blame] | 40 | { |
Uwe Hermann | dc3aa7a | 2010-09-25 23:47:15 +0000 | [diff] [blame] | 41 | u32 dword; |
| 42 | device_t dev = PCI_DEV(0, SIS966_DEVN_BASE + 2, 1); /* USB EHCI */ |
Morgan Tsai | 1602dd5 | 2007-10-29 21:00:14 +0000 | [diff] [blame] | 43 | |
Uwe Hermann | dc3aa7a | 2010-09-25 23:47:15 +0000 | [diff] [blame] | 44 | /* Write the port number to 0x74[15:12]. */ |
| 45 | dword = pci_read_config32(dev, 0x74); |
| 46 | dword &= ~(0xf << 12); |
| 47 | dword |= (port << 12); |
| 48 | pci_write_config32(dev, 0x74, dword); |
Morgan Tsai | 1602dd5 | 2007-10-29 21:00:14 +0000 | [diff] [blame] | 49 | } |
| 50 | |
Patrick Georgi | 5692c57 | 2010-10-05 13:40:31 +0000 | [diff] [blame^] | 51 | void sis966_enable_usbdebug(unsigned int port) |
Morgan Tsai | 1602dd5 | 2007-10-29 21:00:14 +0000 | [diff] [blame] | 52 | { |
Uwe Hermann | dc3aa7a | 2010-09-25 23:47:15 +0000 | [diff] [blame] | 53 | device_t dev = PCI_DEV(0, SIS966_DEVN_BASE + 2, 1); /* USB EHCI */ |
| 54 | |
| 55 | /* Mark the requested physical USB port (1-15) as the Debug Port. */ |
Morgan Tsai | 1602dd5 | 2007-10-29 21:00:14 +0000 | [diff] [blame] | 56 | set_debug_port(port); |
Morgan Tsai | 1602dd5 | 2007-10-29 21:00:14 +0000 | [diff] [blame] | 57 | |
Uwe Hermann | dc3aa7a | 2010-09-25 23:47:15 +0000 | [diff] [blame] | 58 | /* Set the EHCI BAR address. */ |
Patrick Georgi | 5692c57 | 2010-10-05 13:40:31 +0000 | [diff] [blame^] | 59 | pci_write_config32(dev, EHCI_BAR_INDEX, CONFIG_EHCI_BAR); |
Uwe Hermann | dc3aa7a | 2010-09-25 23:47:15 +0000 | [diff] [blame] | 60 | |
| 61 | /* Enable access to the EHCI memory space registers. */ |
| 62 | pci_write_config8(dev, PCI_COMMAND, PCI_COMMAND_MEMORY); |
| 63 | } |