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, 253 insertions, 0 deletions

diff --git a/src/southbridge/amd/sb700/usb.c b/src/southbridge/amd/sb700/usb.c
new file mode 100644
index 0000000000..3b3ad584a7
--- /dev/null
+++ b/src/southbridge/amd/sb700/usb.c
@@ -0,0 +1,253 @@
+/*
+ * 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 <usbdebug.h>
+#include <arch/io.h>
+#include "sb700.h"
+
+static struct pci_operations lops_pci = {
+	.set_subsystem = pci_dev_set_subsystem,
+};
+
+static void usb_init(struct device *dev)
+{
+	u8 byte;
+	u16 word;
+
+	/* 6.1 Enable OHCI0-4 and EHCI Controllers */
+	device_t sm_dev;
+	sm_dev = dev_find_slot(0, PCI_DEVFN(0x14, 0));
+	byte = pci_read_config8(sm_dev, 0x68);
+	byte |= 0xFF;
+	pci_write_config8(sm_dev, 0x68, byte);
+
+	/* RPR 6.2 Enables the USB PME Event,Enable USB resume support */
+	byte = pm_ioread(0x61);
+	byte |= 1 << 6;
+	pm_iowrite(0x61, byte);
+	byte = pm_ioread(0x65);
+	byte |= 1 << 2;
+	pm_iowrite(0x65, byte);
+
+	/* RPR 6.3 Support USB device wakeup from the S4/S5 state */
+	byte = pm_ioread(0x65);
+	byte &= ~(1 << 0);
+	pm_iowrite(0x65, byte);
+
+	/* RPR 6.5 Enable the USB controller to get reset by any software that generate a PCIRst# condition */
+	byte = pm_ioread(0x65);
+	byte |= (1 << 4);
+	pm_iowrite(0x65, byte);
+
+	/* RPR 6.10 Disable OHCI MSI Capability. */
+	word = pci_read_config16(dev, 0x40);
+	word |= (0x3 << 8);
+	pci_write_config16(dev, 0x40, word);
+}
+
+static void usb_init2(struct device *dev)
+{
+	u32 dword;
+	u32 usb2_bar0;
+	device_t sm_dev;
+	u8 rev;
+
+	sm_dev = dev_find_slot(0, PCI_DEVFN(0x14, 0));
+	rev = get_sb700_revision(sm_dev);
+
+	/* dword = pci_read_config32(dev, 0xf8); */
+	/* dword |= 40; */
+	/* pci_write_config32(dev, 0xf8, dword); */
+
+	usb2_bar0 = pci_read_config32(dev, 0x10) & ~0xFF;
+	printk(BIOS_INFO, "usb2_bar0=0x%x\n", usb2_bar0);
+
+	/* RPR6.4 Enables the USB PHY auto calibration resister to match 45ohm resistance */
+	dword = 0x00020F00;
+	write32(usb2_bar0 + 0xC0, dword);
+
+	/* RPR6.9 Sets In/OUT FIFO threshold for best performance */
+	dword = 0x00400040;
+	write32(usb2_bar0 + 0xA4, dword);
+
+	/* RPR6.11 Disabling EHCI Advance Asynchronous Enhancement */
+	dword = pci_read_config32(dev, 0x50);
+	dword |= (1 << 28);
+	pci_write_config32(dev, 0x50, dword);
+
+	/* RPR 6.12 EHCI Advance PHY Power Savings */
+	/* RPR says it is just for A12. CIMM sets it when it is above A11. */
+	/* But it makes the linux crash, so we skip it */
+	#if 0
+	dword = pci_read_config32(dev, 0x50);
+	dword |= 1 << 31;
+	pci_write_config32(dev, 0x50, dword);
+	#endif
+
+	/* RPR6.13 Enabling Fix for EHCI Controller Driver Yellow Sign Issue */
+	/* RPR says it is just for A12. CIMx sets it when it is above A11. */
+	dword = pci_read_config32(dev, 0x50);
+	dword |= (1 << 20);
+	pci_write_config32(dev, 0x50, dword);
+
+	/* RPR6.15 EHCI Async Park Mode */
+	dword = pci_read_config32(dev, 0x50);
+	dword |= (1 << 23);
+	pci_write_config32(dev, 0x50, dword);
+
+	/* Each step below causes the linux crashes. Leave them here
+	 * for future debugging. */
+#if 0
+	u8 byte;
+	u16 word;
+
+	/* RPR6.16 Disable EHCI MSI support */
+	byte = pci_read_config8(dev, 0x50);
+	byte |= (1 << 6);
+	pci_write_config8(dev, 0x50, byte);
+
+	/* RPR6.17 Disable the EHCI Dynamic Power Saving feature */
+	word = read32(usb2_bar0 + 0xBC);
+	word &= ~(1 << 12);
+	write16(usb2_bar0 + 0xBC, word);
+
+	/* RPR6.19 USB Controller DMA Read Delay Tolerant. */
+	if (rev >= REV_SB700_A14) {
+		byte = pci_read_config8(dev, 0x50);
+		byte |= (1 << 7);
+		pci_write_config8(dev, 0x50, byte);
+	}
+
+	/* RPR6.20 Async Park Mode. */
+	/* RPR recommends not to set these bits. */
+	#if 0
+	dword = pci_read_config32(dev, 0x50);
+	dword |= 1 << 23;
+	if (rev >= REV_SB700_A14) {
+		dword &= ~(1 << 2);
+	}
+	pci_write_config32(dev, 0x50, dword);
+	#endif
+
+	/* RPR6.22 Advance Async Enhancement */
+	/* RPR6.23 USB Periodic Cache Setting */
+	dword = pci_read_config32(dev, 0x50);
+	if (rev == REV_SB700_A12) {
+		dword |= 1 << 28; /* 6.22 */
+		dword |= 1 << 27; /* 6.23 */
+	} else if (rev >= REV_SB700_A14) {
+		dword |= 1 << 3;
+		dword &= ~(1 << 28); /* 6.22 */
+		dword |= 1 << 8;
+		dword &= ~(1 << 27); /* 6.23 */
+	}
+	printk(BIOS_DEBUG, "rpr 6.23, final dword=%x\n", dword);
+#endif
+}
+
+static void usb_set_resources(struct device *dev)
+{
+#if CONFIG_USBDEBUG
+	struct resource *res;
+	u32 base;
+	u32 old_debug;
+
+	old_debug = get_ehci_debug();
+	set_ehci_debug(0);
+#endif
+	pci_dev_set_resources(dev);
+
+#if CONFIG_USBDEBUG
+	res = find_resource(dev, 0x10);
+	set_ehci_debug(old_debug);
+	if (!res)
+		return;
+	base = res->base;
+	set_ehci_base(base);
+	report_resource_stored(dev, res, "");
+#endif
+}
+
+static struct device_operations usb_ops = {
+	.read_resources = pci_dev_read_resources,
+	.set_resources = usb_set_resources, /* pci_dev_set_resources, */
+	.enable_resources = pci_dev_enable_resources,
+	.init = usb_init,
+	.scan_bus = 0,
+	.ops_pci = &lops_pci,
+};
+
+static const struct pci_driver usb_0_driver __pci_driver = {
+	.ops = &usb_ops,
+	.vendor = PCI_VENDOR_ID_ATI,
+	.device = PCI_DEVICE_ID_ATI_SB700_USB_18_0,
+};
+
+static const struct pci_driver usb_1_driver __pci_driver = {
+	.ops = &usb_ops,
+	.vendor = PCI_VENDOR_ID_ATI,
+	.device = PCI_DEVICE_ID_ATI_SB700_USB_18_1,
+};
+
+/* the pci id of usb ctrl 0 and 1 are the same. */
+/*
+ * static const struct pci_driver usb_3_driver __pci_driver = {
+ * 	.ops = &usb_ops,
+ * 	.vendor = PCI_VENDOR_ID_ATI,
+ * 	.device = PCI_DEVICE_ID_ATI_SB700_USB_19_0,
+ * };
+ * static const struct pci_driver usb_4_driver __pci_driver = {
+ * 	.ops = &usb_ops,
+ * 	.vendor = PCI_VENDOR_ID_ATI,
+ * 	.device = PCI_DEVICE_ID_ATI_SB700_USB_19_1,
+ * };
+ */
+
+static const struct pci_driver usb_4_driver __pci_driver = {
+	.ops = &usb_ops,
+	.vendor = PCI_VENDOR_ID_ATI,
+	.device = PCI_DEVICE_ID_ATI_SB700_USB_20_5,
+};
+
+static struct device_operations usb_ops2 = {
+	.read_resources = pci_dev_read_resources,
+	.set_resources = usb_set_resources, /* pci_dev_set_resources, */
+	.enable_resources = pci_dev_enable_resources,
+	.init = usb_init2,
+	.scan_bus = 0,
+	.ops_pci = &lops_pci,
+};
+
+static const struct pci_driver usb_5_driver __pci_driver = {
+	.ops = &usb_ops2,
+	.vendor = PCI_VENDOR_ID_ATI,
+	.device = PCI_DEVICE_ID_ATI_SB700_USB_18_2,
+};
+/*
+ * static const struct pci_driver usb_5_driver __pci_driver = {
+ * 	.ops = &usb_ops2,
+ * 	.vendor = PCI_VENDOR_ID_ATI,
+ * 	.device = PCI_DEVICE_ID_ATI_SB700_USB_19_2,
+ * };
+ */