| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2014 Google Inc. |
| * |
| * 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; version 2 of the License. |
| * |
| * 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 <stdint.h> |
| #include <arch/io.h> |
| #include <console/console.h> |
| #include <usbdebug.h> |
| #include <device/pci.h> |
| #include <device/pci_def.h> |
| #include <broadwell/pci_devs.h> |
| |
| void set_debug_port(unsigned int port) |
| { |
| /* Hardcoded to physical port 1 */ |
| } |
| |
| void enable_usbdebug(unsigned int port) |
| { |
| u32 tmp32; |
| |
| tmp32 = pci_read_config32(PCH_DEV_EHCI, PCI_VENDOR_ID); |
| if (tmp32 == 0xffffffff || tmp32 == 0) |
| return; |
| |
| /* Set the EHCI BAR address. */ |
| pci_write_config32(PCH_DEV_EHCI, EHCI_BAR_INDEX, CONFIG_EHCI_BAR); |
| |
| /* Enable access to the EHCI memory space registers. */ |
| pci_write_config8(PCH_DEV_EHCI, PCI_COMMAND, PCI_COMMAND_MEMORY); |
| |
| /* Force ownership of the Debug Port to the EHCI controller. */ |
| tmp32 = read32(CONFIG_EHCI_BAR + CONFIG_EHCI_DEBUG_OFFSET); |
| tmp32 |= (1 << 30); |
| write32(CONFIG_EHCI_BAR + CONFIG_EHCI_DEBUG_OFFSET, tmp32); |
| } |