From d098575b0e8440da33eceaf715967ea8273bbaf2 Mon Sep 17 00:00:00 2001 From: Zheng Bao Date: Thu, 20 Jan 2011 04:45:48 +0000 Subject: This sb800 code is derived from sb700. Signed-off-by: Zheng Bao Acked-by: Stefan Reinauer git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6277 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1 --- src/southbridge/amd/sb800/enable_usbdebug.c | 52 +++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 src/southbridge/amd/sb800/enable_usbdebug.c (limited to 'src/southbridge/amd/sb800/enable_usbdebug.c') diff --git a/src/southbridge/amd/sb800/enable_usbdebug.c b/src/southbridge/amd/sb800/enable_usbdebug.c new file mode 100644 index 0000000000..d58437a68e --- /dev/null +++ b/src/southbridge/amd/sb800/enable_usbdebug.c @@ -0,0 +1,52 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2010 Advanced Micro Devices, 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 +#include +#include +#include +#include +#include "sb800.h" + +#ifndef SB800_DEVN_BASE +#define SB800_DEVN_BASE 0 +#endif + +#define EHCI_EOR (CONFIG_EHCI_BAR + 0x20) +#define DEBUGPORT_MISC_CONTROL (EHCI_EOR + 0x80) + +void set_debug_port(unsigned int port) +{ + u32 reg32; + + /* Write the port number to DEBUGPORT_MISC_CONTROL[31:28]. */ + reg32 = read32(DEBUGPORT_MISC_CONTROL); + reg32 &= ~(0xf << 28); + reg32 |= (port << 28); + reg32 |= (1 << 27); /* Enable Debug Port port number remapping. */ + write32(DEBUGPORT_MISC_CONTROL, reg32); +} + + +void sb800_enable_usbdebug(unsigned int port) +{ + pci_write_config32(PCI_DEV(0, SB800_DEVN_BASE + 0x13, 5), + EHCI_BAR_INDEX, CONFIG_EHCI_BAR); + pci_write_config8(PCI_DEV(0, SB800_DEVN_BASE + 0x13, 5), 0x04, 0x2); /* mem space enabe */ + set_debug_port(port); +} -- cgit v1.2.3