From 888d559b0373cb956314b8087439378c14a16918 Mon Sep 17 00:00:00 2001 From: Vladimir Serbinenko Date: Wed, 13 Nov 2013 17:53:38 +0100 Subject: Support for Ibexpeak southbridge Part of X201 port. Change-Id: If17d707004aba9f08459dbd8f3a146fa3c076aa9 Signed-off-by: Vladimir Serbinenko Reviewed-on: http://review.coreboot.org/4052 Reviewed-by: Ronald G. Minnich Tested-by: build bot (Jenkins) --- src/southbridge/intel/ibexpeak/usb_ehci.c | 98 +++++++++++++++++++++++++++++++ 1 file changed, 98 insertions(+) create mode 100644 src/southbridge/intel/ibexpeak/usb_ehci.c (limited to 'src/southbridge/intel/ibexpeak/usb_ehci.c') diff --git a/src/southbridge/intel/ibexpeak/usb_ehci.c b/src/southbridge/intel/ibexpeak/usb_ehci.c new file mode 100644 index 0000000000..d941438999 --- /dev/null +++ b/src/southbridge/intel/ibexpeak/usb_ehci.c @@ -0,0 +1,98 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2008-2009 coresystems GmbH + * Copyright (C) 2013 Vladimir Serbinenko + * + * 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 "pch.h" +#include +#include + +static void usb_ehci_init(struct device *dev) +{ + u32 reg32; + + /* Disable Wake on Disconnect in RMH */ + reg32 = RCBA32(0x35b0); + reg32 |= 0x22; + RCBA32(0x35b0) = reg32; + + printk(BIOS_DEBUG, "EHCI: Setting up controller.. "); + + pci_write_config32(dev, 0x84, 0x130c8911); + pci_write_config32(dev, 0x88, 0xa0); + pci_write_config32(dev, 0xf4, 0x80808588); + pci_write_config32(dev, 0xf4, 0x00808588); + pci_write_config32(dev, 0xf4, 0x00808588); + pci_write_config32(dev, 0xfc, 0x301b1728); + + reg32 = pci_read_config32(dev, PCI_COMMAND); + reg32 |= PCI_COMMAND_MASTER; + //reg32 |= PCI_COMMAND_SERR; + pci_write_config32(dev, PCI_COMMAND, reg32); + + printk(BIOS_DEBUG, "done.\n"); +} + +static void usb_ehci_set_subsystem(device_t dev, unsigned vendor, + unsigned device) +{ + u8 access_cntl; + + access_cntl = pci_read_config8(dev, 0x80); + + /* Enable writes to protected registers. */ + pci_write_config8(dev, 0x80, access_cntl | 1); + + if (!vendor || !device) { + pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID, + pci_read_config32(dev, PCI_VENDOR_ID)); + } else { + pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID, + ((device & 0xffff) << 16) | (vendor & + 0xffff)); + } + + /* Restore protection. */ + pci_write_config8(dev, 0x80, access_cntl); +} + + +static struct pci_operations lops_pci = { + .set_subsystem = &usb_ehci_set_subsystem, +}; + +static struct device_operations usb_ehci_ops = { + .read_resources = pci_ehci_read_resources, + .set_resources = pci_dev_set_resources, + .init = usb_ehci_init, + .scan_bus = 0, + .ops_pci = &lops_pci, +}; + +static const unsigned short pci_device_ids[] = { 0x3b34, 0x3b3c, 0 }; + +static const struct pci_driver pch_usb_ehci __pci_driver = { + .ops = &usb_ehci_ops, + .vendor = PCI_VENDOR_ID_INTEL, + .devices = pci_device_ids, +}; -- cgit v1.2.3