Support for Ibexpeak southbridge

Part of X201 port.

Change-Id: If17d707004aba9f08459dbd8f3a146fa3c076aa9
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/4052
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Tested-by: build bot (Jenkins)

1 files changed, 98 insertions, 0 deletions

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 <console/console.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+#include "pch.h"
+#include <usbdebug.h>
+#include <arch/io.h>
+
+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,
+};