This patch contains some significant updates to the i82801gx component and will
be required for a series of later patches. Roughly it contains:
* fixed SMBus driver (was not compiled in before)
* fixed S-ATA/P-ATA combination
* Added warnings to drivers being called with a NULL dev->chip_info
* Set subsystem ids for those boards that have none specified in Options.lb
* Fix license headers. The code was originally released under GPL v2 but
some files sneaked in with a v2 or later header.
* some attempts to fix azalia/Intel HDA.. not working yet
* clean up and fix pci bridge handling code
* Add Config based GPI handling to LPC driver
* Add HPET enable function
* Enable clock gating where appropriate
* first attempt at USB debug console support (not working yet)
* Add required options to kontron board
* many other minor changes
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Myles Watson <mylesgw@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3991 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
diff --git a/src/southbridge/intel/i82801gx/i82801gx_usb_debug.c b/src/southbridge/intel/i82801gx/i82801gx_usb_debug.c
new file mode 100644
index 0000000..be524ca
--- /dev/null
+++ b/src/southbridge/intel/i82801gx/i82801gx_usb_debug.c
@@ -0,0 +1,36 @@
+/*
+ * 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
+ */
+
+// An arbitrary address for the BAR
+#define EHCI_BAR 0xFEF00000
+// These could be read from DEBUG_BASE (0:1d.7 R 0x5A 16bit)
+#define EHCI_BAR_INDEX 0x10
+#define EHCI_DEBUG_OFFSET 0xA0
+
+static void set_debug_port(unsigned port)
+{
+ // Nothing for now?
+}
+
+static void i82801gx_enable_usbdebug_direct(unsigned port)
+{
+ pci_write_config32(PCI_DEV(0, 0x1d, 7), EHCI_BAR_INDEX, EHCI_BAR);
+ pci_write_config8(PCI_DEV(0, 0x1d, 7), 0x04, 0x2); // Memory Space Enable
+}
+