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 |
Paul Menzel | a46a712 | 2013-02-23 18:37:27 +0100 | [diff] [blame] | 21 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
Morgan Tsai | 1602dd5 | 2007-10-29 21:00:14 +0000 | [diff] [blame] | 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 | |
Kyösti Mälkki | 1fd7508 | 2013-06-11 16:32:01 +0300 | [diff] [blame^] | 26 | // Use simple device model for this file even in ramstage |
| 27 | #define __SIMPLE_DEVICE__ |
| 28 | |
Uwe Hermann | dc3aa7a | 2010-09-25 23:47:15 +0000 | [diff] [blame] | 29 | #include <stdint.h> |
Patrick Georgi | 5692c57 | 2010-10-05 13:40:31 +0000 | [diff] [blame] | 30 | #include <arch/io.h> |
Uwe Hermann | dc3aa7a | 2010-09-25 23:47:15 +0000 | [diff] [blame] | 31 | #include <usbdebug.h> |
| 32 | #include <device/pci_def.h> |
Patrick Georgi | 5692c57 | 2010-10-05 13:40:31 +0000 | [diff] [blame] | 33 | #include "sis966.h" |
Uwe Hermann | dc3aa7a | 2010-09-25 23:47:15 +0000 | [diff] [blame] | 34 | |
Uwe Hermann | dc3aa7a | 2010-09-25 23:47:15 +0000 | [diff] [blame] | 35 | void set_debug_port(unsigned int port) |
Morgan Tsai | 1602dd5 | 2007-10-29 21:00:14 +0000 | [diff] [blame] | 36 | { |
Uwe Hermann | dc3aa7a | 2010-09-25 23:47:15 +0000 | [diff] [blame] | 37 | u32 dword; |
| 38 | 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] | 39 | |
Uwe Hermann | dc3aa7a | 2010-09-25 23:47:15 +0000 | [diff] [blame] | 40 | /* Write the port number to 0x74[15:12]. */ |
| 41 | dword = pci_read_config32(dev, 0x74); |
| 42 | dword &= ~(0xf << 12); |
| 43 | dword |= (port << 12); |
| 44 | pci_write_config32(dev, 0x74, dword); |
Morgan Tsai | 1602dd5 | 2007-10-29 21:00:14 +0000 | [diff] [blame] | 45 | } |
| 46 | |
Stefan Reinauer | b3ae186 | 2011-04-18 23:51:12 +0000 | [diff] [blame] | 47 | void enable_usbdebug(unsigned int port) |
Morgan Tsai | 1602dd5 | 2007-10-29 21:00:14 +0000 | [diff] [blame] | 48 | { |
Uwe Hermann | dc3aa7a | 2010-09-25 23:47:15 +0000 | [diff] [blame] | 49 | device_t dev = PCI_DEV(0, SIS966_DEVN_BASE + 2, 1); /* USB EHCI */ |
| 50 | |
| 51 | /* Mark the requested physical USB port (1-15) as the Debug Port. */ |
Morgan Tsai | 1602dd5 | 2007-10-29 21:00:14 +0000 | [diff] [blame] | 52 | set_debug_port(port); |
Morgan Tsai | 1602dd5 | 2007-10-29 21:00:14 +0000 | [diff] [blame] | 53 | |
Uwe Hermann | dc3aa7a | 2010-09-25 23:47:15 +0000 | [diff] [blame] | 54 | /* Set the EHCI BAR address. */ |
Patrick Georgi | 5692c57 | 2010-10-05 13:40:31 +0000 | [diff] [blame] | 55 | pci_write_config32(dev, EHCI_BAR_INDEX, CONFIG_EHCI_BAR); |
Uwe Hermann | dc3aa7a | 2010-09-25 23:47:15 +0000 | [diff] [blame] | 56 | |
| 57 | /* Enable access to the EHCI memory space registers. */ |
| 58 | pci_write_config8(dev, PCI_COMMAND, PCI_COMMAND_MEMORY); |
| 59 | } |