Files
system76-coreboot/src/southbridge/intel/sch/usb_debug.c
Patrick Georgi be61a17351 Support Intel SCH (Poulsbo) and add iwave/iWRainbowG6 board
which uses it.

Compiles, but not boot tested lately.
Many things missing (eg. SMM support, proper ACPI, ...)

Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de>
Acked-by: Peter Stuge <peter@stuge.se>


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6198 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2010-12-18 07:48:43 +00:00

50 lines
1.6 KiB
C

/*
* This file is part of the coreboot project.
*
* Copyright (C) 2009 coresystems GmbH
*
* 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 <arch/romcc_io.h>
#include <console/console.h>
#include <usbdebug.h>
#include <device/pci_def.h>
/* Required for successful build, but currently empty. */
void set_debug_port(unsigned int port)
{
/* Not needed, the southbridges hardcode physical USB port 1. */
}
void sch_enable_usbdebug(unsigned int port)
{
u32 dbgctl;
device_t dev = PCI_DEV(0, 0x1d, 7); /* USB EHCI, D29:F7 */
/* Set the EHCI BAR address. */
pci_write_config32(dev, EHCI_BAR_INDEX, CONFIG_EHCI_BAR);
/* Enable access to the EHCI memory space registers. */
pci_write_config8(dev, PCI_COMMAND, PCI_COMMAND_MEMORY);
/* Force ownership of the Debug Port to the EHCI controller. */
printk(BIOS_DEBUG, "Enabling OWNER_CNT\n");
dbgctl = read32(CONFIG_EHCI_BAR + CONFIG_EHCI_DEBUG_OFFSET);
dbgctl |= (1 << 30);
write32(CONFIG_EHCI_BAR + CONFIG_EHCI_DEBUG_OFFSET, dbgctl);
}