diff options
Diffstat (limited to 'src/southbridge/amd/sb600/usb.c')
| -rw-r--r-- | src/southbridge/amd/sb600/usb.c | 203 |
1 files changed, 203 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..7539f083c6 --- /dev/null +++ b/src/southbridge/amd/sb600/usb.c @@ -0,0 +1,203 @@ +/* + * 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.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 */ + device_t 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; + u32 usb2_bar0; + /* 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); + + /* RPR5.4 Enables the USB PHY auto calibration resister to match 45ohm resistance */ + dword = 0x00020F00; + write32(usb2_bar0 + 0xC0, dword); + + /* RPR5.5 Sets In/OUT FIFO threshold for best performance */ + dword = 0x00200040; + write32(usb2_bar0 + 0xA4, dword); + + /* RPR5.9 Disable the EHCI Dynamic Power Saving feature */ + word = read16(usb2_bar0 + 0xBC); + word &= ~(1 << 12); + write16(usb2_bar0 + 0xBC, word); + + /* 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) +{ +#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, + /*.enable = sb600_enable, */ + .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_SB600_USB_0, +}; +static const 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 const 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 const 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 const struct pci_driver usb_4_driver __pci_driver = { + .ops = &usb_ops, + .vendor = PCI_VENDOR_ID_ATI, + .device = PCI_DEVICE_ID_ATI_SB600_USB_4, +}; + +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, + /*.enable = sb600_enable, */ + .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_SB600_USB2, +}; + |