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, 128 insertions, 0 deletions

diff --git a/src/southbridge/amd/sb700/pci.c b/src/southbridge/amd/sb700/pci.c
new file mode 100644
index 0000000000..d1e9851b9d
--- /dev/null
+++ b/src/southbridge/amd/sb700/pci.c
@@ -0,0 +1,128 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2010 Advanced Micro Devices, Inc.
+ *
+ * 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 "sb700.h"
+
+static void pci_init(struct device *dev)
+{
+	u32 dword;
+	u16 word;
+	u8 byte;
+
+	/* RPR 5.1 Enables the PCI-bridge subtractive decode */
+	/* This setting is strongly recommended since it supports some legacy PCI add-on cards,such as BIOS debug cards */
+	byte = pci_read_config8(dev, 0x4B);
+	byte |= 1 << 7;
+	pci_write_config8(dev, 0x4B, byte);
+	byte = pci_read_config8(dev, 0x40);
+	byte |= 1 << 5;
+	pci_write_config8(dev, 0x40, byte);
+
+	/* RPR5.2 PCI-bridge upstream dual address window */
+	/* this setting is applicable if the system memory is more than 4GB,and the PCI device can support dual address access */
+	byte = pci_read_config8(dev, 0x50);
+	byte |= 1 << 0;
+	pci_write_config8(dev, 0x50, byte);
+
+	/* RPR 5.3 PCI bus 64-byte DMA read access */
+	/* Enhance the PCI bus DMA performance */
+	byte = pci_read_config8(dev, 0x4B);
+	byte |= 1 << 4;
+	pci_write_config8(dev, 0x4B, byte);
+
+	/* RPR 5.4 Enables the PCIB writes to be cacheline aligned. */
+	/* The size of the writes will be set in the Cacheline Register */
+	byte = pci_read_config8(dev, 0x40);
+	byte |= 1 << 1;
+	pci_write_config8(dev, 0x40, byte);
+
+	/* RPR 5.5 Enables the PCIB to retain ownership of the bus on the Primary side and on the Secondary side when GNT# is deasserted */
+	pci_write_config8(dev, 0x0D, 0x40);
+	pci_write_config8(dev, 0x1B, 0x40);
+
+	/* RPR 5.6 Enable the command matching checking function on "Memory Read" & "Memory Read Line" commands */
+	byte = pci_read_config8(dev, 0x4B);
+	byte |= 1 << 6;
+	pci_write_config8(dev, 0x4B, byte);
+
+	/* RPR 5.7 When enabled, the PCI arbiter checks for the Bus Idle before asserting GNT# */
+	byte = pci_read_config8(dev, 0x4B);
+	byte |= 1 << 0;
+	pci_write_config8(dev, 0x4B, byte);
+
+	/* RPR 5.8 Adjusts the GNT# de-assertion time */
+	word = pci_read_config16(dev, 0x64);
+	word |= 1 << 12;
+	pci_write_config16(dev, 0x64, word);
+
+	/* RPR 5.9 Fast Back to Back transactions support */
+	byte = pci_read_config8(dev, 0x48);
+	byte |= 1 << 2;
+	/* pci_write_config8(dev, 0x48, byte); */
+
+	/* RPR 5.10 Enable Lock Operation */
+	/* byte = pci_read_config8(dev, 0x48); */
+	byte |= 1 << 3;
+	pci_write_config8(dev, 0x48, byte);
+
+	/* RPR 5.11 Enable additional optional PCI clock */
+	word = pci_read_config16(dev, 0x64);
+	word |= 1 << 8;
+	pci_write_config16(dev, 0x64, word);
+
+	/* RPR 5.12 Enable One-Prefetch-Channel Mode */
+	dword = pci_read_config32(dev, 0x64);
+	dword |= 1 << 20;
+	pci_write_config32(dev, 0x64, dword);
+
+	/* RPR 5.13 Disable PCIB MSI Capability */
+	byte = pci_read_config8(dev, 0x40);
+	byte &= ~(1 << 3);
+	pci_write_config8(dev, 0x40, byte);
+
+	/* rpr5.14 Adjusting CLKRUN# */
+	dword = pci_read_config32(dev, 0x64);
+	dword |= (1 << 15);
+	pci_write_config32(dev, 0x64, dword);
+}
+
+static struct pci_operations lops_pci = {
+	.set_subsystem = 0,
+};
+
+static struct device_operations pci_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,
+	.reset_bus = pci_bus_reset,
+	.ops_pci = &lops_pci,
+};
+
+static const struct pci_driver pci_driver __pci_driver = {
+	.ops = &pci_ops,
+	.vendor = PCI_VENDOR_ID_ATI,
+	.device = PCI_DEVICE_ID_ATI_SB700_PCI,
+};