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, 164 insertions, 0 deletions

diff --git a/src/southbridge/intel/i82801gx/pcie.c b/src/southbridge/intel/i82801gx/pcie.c
new file mode 100644
index 0000000000..d69bc6d07d
--- /dev/null
+++ b/src/southbridge/intel/i82801gx/pcie.c
@@ -0,0 +1,164 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2008-2009 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 <console/console.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+
+static void pci_init(struct device *dev)
+{
+	u16 reg16;
+	u32 reg32;
+
+	printk(BIOS_DEBUG, "Initializing ICH7 PCIe bridge.\n");
+
+	/* Enable Bus Master */
+	reg32 = pci_read_config32(dev, PCI_COMMAND);
+	reg32 |= PCI_COMMAND_MASTER;
+	pci_write_config32(dev, PCI_COMMAND, reg32);
+
+	/* Set Cache Line Size to 0x10 */
+	// This has no effect but the OS might expect it
+	pci_write_config8(dev, 0x0c, 0x10);
+
+	reg16 = pci_read_config16(dev, 0x3e);
+	reg16 &= ~(1 << 0); /* disable parity error response */
+	// reg16 &= ~(1 << 1); /* disable SERR */
+	reg16 |= (1 << 2); /* ISA enable */
+	pci_write_config16(dev, 0x3e, reg16);
+
+	/* Enable IO xAPIC on this PCIe port */
+	reg32 = pci_read_config32(dev, 0xd8);
+	reg32 |= (1 << 7);
+	pci_write_config32(dev, 0xd8, reg32);
+
+	/* Enable Backbone Clock Gating */
+	reg32 = pci_read_config32(dev, 0xe1);
+	reg32 |= (1 << 3) | (1 << 2) | (1 << 1) | (1 << 0);
+	pci_write_config32(dev, 0xe1, reg32);
+
+#if CONFIG_MMCONF_SUPPORT
+	/* Set VC0 transaction class */
+	reg32 = pci_mmio_read_config32(dev, 0x114);
+	reg32 &= 0xffffff00;
+	reg32 |= 1;
+	pci_mmio_write_config32(dev, 0x114, reg32);
+
+	/* Mask completion timeouts */
+	reg32 = pci_mmio_read_config32(dev, 0x148);
+	reg32 |= (1 << 14);
+	pci_mmio_write_config32(dev, 0x148, reg32);
+#else
+#error "MMIO needed for ICH7 PCIe"
+#endif
+	/* Enable common clock configuration */
+	// Are there cases when we don't want that?
+	reg16 = pci_read_config16(dev, 0x50);
+	reg16 |= (1 << 6);
+	pci_write_config16(dev, 0x50, reg16);
+
+#ifdef EVEN_MORE_DEBUG
+	reg32 = pci_read_config32(dev, 0x20);
+	printk(BIOS_SPEW, "    MBL    = 0x%08x\n", reg32);
+	reg32 = pci_read_config32(dev, 0x24);
+	printk(BIOS_SPEW, "    PMBL   = 0x%08x\n", reg32);
+	reg32 = pci_read_config32(dev, 0x28);
+	printk(BIOS_SPEW, "    PMBU32 = 0x%08x\n", reg32);
+	reg32 = pci_read_config32(dev, 0x2c);
+	printk(BIOS_SPEW, "    PMLU32 = 0x%08x\n", reg32);
+#endif
+
+	/* Clear errors in status registers */
+	reg16 = pci_read_config16(dev, 0x06);
+	//reg16 |= 0xf900;
+	pci_write_config16(dev, 0x06, reg16);
+
+	reg16 = pci_read_config16(dev, 0x1e);
+	//reg16 |= 0xf900;
+	pci_write_config16(dev, 0x1e, reg16);
+}
+
+static void pcie_set_subsystem(device_t dev, unsigned vendor, unsigned device)
+{
+	/* NOTE: This is not the default position! */
+	if (!vendor || !device) {
+		pci_write_config32(dev, 0x94,
+				pci_read_config32(dev, 0));
+	} else {
+		pci_write_config32(dev, 0x94,
+				((device & 0xffff) << 16) | (vendor & 0xffff));
+	}
+}
+
+static struct pci_operations pci_ops = {
+	.set_subsystem = pcie_set_subsystem,
+};
+
+static struct device_operations device_ops = {
+	.read_resources		= pci_bus_read_resources,
+	.set_resources		= pci_dev_set_resources,
+	.enable_resources	= pci_bus_enable_resources,
+	.init			= pci_init,
+	.scan_bus		= pci_scan_bridge,
+	.ops_pci		= &pci_ops,
+};
+
+/* 82801GB/GR/GDH/GBM/GHM (ICH7/ICH7R/ICH7DH/ICH7-M/ICH7-M DH) */
+static const struct pci_driver i82801gx_pcie_port1 __pci_driver = {
+	.ops	= &device_ops,
+	.vendor	= PCI_VENDOR_ID_INTEL,
+	.device	= 0x27d0,
+};
+
+/* 82801GB/GR/GDH/GBM/GHM (ICH7/ICH7R/ICH7DH/ICH7-M/ICH7-M DH) */
+static const struct pci_driver i82801gx_pcie_port2 __pci_driver = {
+	.ops	= &device_ops,
+	.vendor	= PCI_VENDOR_ID_INTEL,
+	.device	= 0x27d2,
+};
+
+/* 82801GB/GR/GDH/GBM/GHM (ICH7/ICH7R/ICH7DH/ICH7-M/ICH7-M DH) */
+static const struct pci_driver i82801gx_pcie_port3 __pci_driver = {
+	.ops	= &device_ops,
+	.vendor	= PCI_VENDOR_ID_INTEL,
+	.device	= 0x27d4,
+};
+
+/* 82801GB/GR/GDH/GBM/GHM (ICH7/ICH7R/ICH7DH/ICH7-M/ICH7-M DH) */
+static const struct pci_driver i82801gx_pcie_port4 __pci_driver = {
+	.ops	= &device_ops,
+	.vendor	= PCI_VENDOR_ID_INTEL,
+	.device	= 0x27d6,
+};
+
+/* 82801GR/GDH/GHM (ICH7R/ICH7DH/ICH7-M DH) */
+static const struct pci_driver i82801gx_pcie_port5 __pci_driver = {
+	.ops	= &device_ops,
+	.vendor	= PCI_VENDOR_ID_INTEL,
+	.device	= 0x27e0,
+};
+
+/* 82801GR/GDH/GHM (ICH7R/ICH7DH/ICH7-M DH) */
+static const struct pci_driver i82801gx_pcie_port6 __pci_driver = {
+	.ops	= &device_ops,
+	.vendor	= PCI_VENDOR_ID_INTEL,
+	.device	= 0x27e2,
+};