first round name simplification. drop the <component>_ prefix.

the prefix was introduced in the early v2 tree many years ago
because our old build system "newconfig" could not handle two files with
the same name in different paths like /path/to/usb.c and
/another/path/to/usb.c correctly. Only one of the files would end up
being compiled into the final image.

Since Kconfig (actually since shortly before we switched to Kconfig) we
don't suffer from that problem anymore. So we could drop the sb700_
prefix from all those filenames (or, the <componentname>_ prefix in general)

- makes it easier to fork off a new chipset
- makes it easier to diff against other chipsets
- storing redundant information in filenames seems wrong

Signed-off-by: <stepan@coresystems.de>

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



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6149 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

1 files changed, 61 insertions, 0 deletions

diff --git a/src/southbridge/nvidia/ck804/usb.c b/src/southbridge/nvidia/ck804/usb.c
new file mode 100644
index 0000000000..45ee734eb1
--- /dev/null
+++ b/src/southbridge/nvidia/ck804/usb.c
@@ -0,0 +1,61 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2004 Tyan Computer
+ * Written by Yinghai Lu <yhlu@tyan.com> for Tyan Computer.
+ *
+ * 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 <device/pci_ops.h>
+#include "ck804.h"
+
+static void usb1_init(struct device *dev)
+{
+	struct southbridge_nvidia_ck804_config const *conf = dev->chip_info;
+	if (conf->usb1_hc_reset) {
+		/*
+		 * Somehow the warm reset does not really reset the USB
+		 * controller. Later, during boot, when the Bus Master bit is
+		 * set, the USB controller trashes the memory, causing weird
+		 * misbehavior. Was detected on Sun Ultra40, where mptable
+		 * was damaged.
+		 */
+		uint32_t bar0 = pci_read_config32(dev, 0x10);
+		uint32_t *regs = (uint32_t *) (bar0 & ~0xfff);
+
+		/* OHCI USB HCCommandStatus Register, HostControllerReset bit */
+		regs[2] |= 1;
+	}
+}
+
+static struct device_operations usb_ops = {
+	.read_resources   = pci_dev_read_resources,
+	.set_resources    = pci_dev_set_resources,
+	.enable_resources = pci_dev_enable_resources,
+	.init             = usb1_init,
+	// .enable        = ck804_enable,
+	.scan_bus         = 0,
+	.ops_pci          = &ck804_pci_ops,
+};
+
+static const struct pci_driver usb_driver __pci_driver = {
+	.ops    = &usb_ops,
+	.vendor = PCI_VENDOR_ID_NVIDIA,
+	.device = PCI_DEVICE_ID_NVIDIA_CK804_USB,
+};