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/*
* 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.
*/
#include <console/console.h>
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <device/pci_ops.h>
#include <device/pci_ehci.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;
void *usb2_bar0;
/* dword = pci_read_config32(dev, 0xf8); */
/* dword |= 40; */
/* pci_write_config32(dev, 0xf8, dword); */
usb2_bar0 = (void *)(pci_read_config32(dev, 0x10) & ~0xFF);
printk(BIOS_INFO, "usb2_bar0=0x%p\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);
/* EHCI Erratum (adapted from Linux) */
dword = pci_read_config32(dev, 0x53);
dword |= (1 << 3);
pci_write_config32(dev, 0x53, 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 struct device_operations usb_ops = {
.read_resources = pci_ehci_read_resources,
.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 unsigned short usb_ids[] = {
PCI_DEVICE_ID_ATI_SB600_USB_0,
PCI_DEVICE_ID_ATI_SB600_USB_1,
PCI_DEVICE_ID_ATI_SB600_USB_2,
PCI_DEVICE_ID_ATI_SB600_USB_3,
PCI_DEVICE_ID_ATI_SB600_USB_4,
0,
};
static const struct pci_driver usb_0_driver __pci_driver = {
.ops = &usb_ops,
.vendor = PCI_VENDOR_ID_ATI,
.devices= usb_ids,
};
static struct device_operations usb_ops2 = {
.read_resources = pci_ehci_read_resources,
.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,
};
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