This is so that people can see it. This is the sb600 for v3. It almost

certainly won't build -- that comes later. I am hoping to get some 
eyeballs on it for simple errors. 

rs690 is next. 

Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3630 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

1 files changed, 205 insertions, 0 deletions

diff --git a/src/southbridge/amd/sb600/usb.c b/src/southbridge/amd/sb600/usb.c
new file mode 100644
index 0000000000..d8ef2c2b07
--- /dev/null
+++ b/src/southbridge/amd/sb600/usb.c
@@ -0,0 +1,205 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2008 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_direct.h>
+#include <arch/io.h>
+#include "sb600.h"
+
+static struct pci_operations lops_pci = {
+	.set_subsystem = pci_dev_set_subsystem,
+};
+
+static void usb_init(struct device *dev)
+{
+	u8 byte;
+	u16 word;
+	u32 dword;
+
+	/* Enable OHCI0-4 and EHCI Controllers */
+	struct device * sm_dev;
+	sm_dev = dev_find_slot(0, PCI_DEVFN(0x14, 0));
+	byte = pci_read_config8(sm_dev, 0x68);
+	byte |= 0x3F;
+	pci_write_config8(sm_dev, 0x68, byte);
+
+	/* RPR 5.2 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 5.3 Support USB device wakeup from the S4/S5 state */
+	byte = pm_ioread(0x65);
+	byte &= ~(1 << 0);
+	pm_iowrite(0x65, byte);
+
+	/* RPR 5.6 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 5.11 Disable OHCI MSI Capability */
+	word = pci_read_config16(dev, 0x40);
+	word |= (0x1F << 8);
+	pci_write_config16(dev, 0x40, word);
+
+	/* RPR 5.8 Disable the OHCI Dynamic Power Saving feature  */
+	dword = pci_read_config32(dev, 0x50);
+	dword &= ~(1 << 16);
+	pci_write_config32(dev, 0x50, dword);
+
+	/* RPR 5.12 Enable prevention of OHCI accessing the invalid system memory address range */
+	word = pci_read_config16(dev, 0x50);
+	word |= 1 << 15;
+	pci_write_config16(dev, 0x50, word);
+
+	/* RPR 5.15 Disable SMI handshake in between USB and ACPI for USB legacy support. */
+	/* The BIOS should always set this bit to prevent the malfunction on USB legacy keyboard/mouse support */
+	word = pci_read_config16(dev, 0x50);
+	word |= 1 << 12;
+	pci_write_config16(dev, 0x50, word);
+}
+
+static void usb_init2(struct device *dev)
+{
+	u8 byte;
+	u16 word;
+	u32 dword;
+	u8 *usb2_bar0;
+	/* dword = pci_read_config32(dev, 0xf8); */
+	/* dword |= 40; */
+	/* pci_write_config32(dev, 0xf8, dword); */
+
+	usb2_bar0 = (u8 *) (pci_read_config32(dev, 0x10) & ~0xFF);
+	printk_info("usb2_bar0=%x\n", usb2_bar0);
+
+	/* RPR5.4 Enables the USB PHY auto calibration resister to match 45ohm resistence */
+	dword = 0x00020F00;
+	writel(dword, usb2_bar0 + 0xC0);
+
+	/* RPR5.5 Sets In/OUT FIFO threshold for best performance */
+	dword = 0x00200040;
+	writel(dword, usb2_bar0 + 0xA4);
+
+	/* RPR5.9 Disable the EHCI Dynamic Power Saving feature */
+	word = readl(usb2_bar0 + 0xBC);
+	word &= ~(1 << 12);
+	writew(word, usb2_bar0 + 0xBC);
+
+	/* RPR5.10 Disable EHCI MSI support */
+	byte = pci_read_config8(dev, 0x50);
+	byte |= (1 << 6);
+	pci_write_config8(dev, 0x50, byte);
+
+	/* RPR5.13 Disable C3 time enhancement feature */
+	dword = pci_read_config32(dev, 0x50);
+	dword &= ~(1 << 28);
+	pci_write_config32(dev, 0x50, dword);
+
+	/* RPR5.14 Disable USB PHY PLL Reset signal to come from ACPI */
+	byte = pci_read_config8(dev, 0x54);
+	byte &= ~(1 << 0);
+	pci_write_config8(dev, 0x54, byte);
+}
+
+static void usb_set_resources(struct device *dev)
+{
+#ifdef CONFIG_USBDEBUG_DIRECT
+	struct resource *res;
+	u32 base;
+	u32 old_debug;
+
+	old_debug = get_ehci_debug();
+	set_ehci_debug(0);
+#endif
+	pci_dev_set_resources(dev);
+
+#ifdef CONFIG_USBDEBUG_DIRECT
+	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
+
+}
+
+/* note that below there are a lot of usb drivers. But we don't support linker sets
+ * What we need to do is has a phase 2 function that puts the many usb devices into the device tree. 
+ * That's one of the purposes of phase 2. We will write this later. 
+ *
+ */
+#warning need USB phase 2 function to populate device tree
+struct device_operations sb600_usb = {
+	.id = {.type = DEVICE_ID_PCI,
+		{.pci = {.vendor = PCI_VENDOR_ID_ATI,
+			      .device = PCI_DEVICE_ID_ATI_SB600_USB_0}}},
+	.constructor		 = default_device_constructor,
+	.phase3_scan		 = scan_static_bus,
+	.phase4_read_resources	 = pci_dev_read_resources,
+	.phase4_set_resources	 = usb_set_resources,
+	.phase5_enable_resources = pci_dev_enable_resources,
+	.phase6_init		 = usb_init,
+	.ops_pci          = &lops_pci
+};
+
+#if 0
+static struct pci_driver usb_1_driver __pci_driver = {
+	.ops = &usb_ops,
+	.vendor = PCI_VENDOR_ID_ATI,
+	.device = PCI_DEVICE_ID_ATI_SB600_USB_1,
+};
+static struct pci_driver usb_2_driver __pci_driver = {
+	.ops = &usb_ops,
+	.vendor = PCI_VENDOR_ID_ATI,
+	.device = PCI_DEVICE_ID_ATI_SB600_USB_2,
+};
+static struct pci_driver usb_3_driver __pci_driver = {
+	.ops = &usb_ops,
+	.vendor = PCI_VENDOR_ID_ATI,
+	.device = PCI_DEVICE_ID_ATI_SB600_USB_3,
+};
+static struct pci_driver usb_4_driver __pci_driver = {
+	.ops = &usb_ops,
+	.vendor = PCI_VENDOR_ID_ATI,
+	.device = PCI_DEVICE_ID_ATI_SB600_USB_4,
+};
+#endif
+
+struct device_operations sb600_usb2 = {
+	.id = {.type = DEVICE_ID_PCI,
+		{.pci = {.vendor = PCI_VENDOR_ID_ATI,
+			      .device = PCI_DEVICE_ID_ATI_SB600_USB2}}},
+	.constructor		 = default_device_constructor,
+	.phase3_scan		 = scan_static_bus,
+	.phase4_read_resources	 = pci_dev_read_resources,
+	.phase4_set_resources	 = usb_set_resources,
+	.phase5_enable_resources = pci_dev_enable_resources,
+	.phase6_init		 = usb_init,
+	.ops_pci          = &lops_pci
+};