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/* SPDX-License-Identifier: GPL-2.0-only */
/* This file is part of the coreboot project. */
#include <console/console.h>
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ops.h>
#include "i82801gx.h"
#include "sata.h"
static void ich_hide_devfn(unsigned int devfn)
{
switch (devfn) {
case PCI_DEVFN(27, 0): /* HD Audio Controller */
RCBA32_OR(FD, FD_HDAUD);
break;
case PCI_DEVFN(28, 0): /* PCI Express Root Port 1 */
case PCI_DEVFN(28, 1): /* PCI Express Root Port 2 */
case PCI_DEVFN(28, 2): /* PCI Express Root Port 3 */
case PCI_DEVFN(28, 3): /* PCI Express Root Port 4 */
case PCI_DEVFN(28, 4): /* PCI Express Root Port 5 */
case PCI_DEVFN(28, 5): /* PCI Express Root Port 6 */
RCBA32_OR(FD, ICH_DISABLE_PCIE(PCI_FUNC(devfn)));
break;
case PCI_DEVFN(29, 0): /* UHCI #1 */
case PCI_DEVFN(29, 1): /* UHCI #2 */
case PCI_DEVFN(29, 2): /* UHCI #3 */
case PCI_DEVFN(29, 3): /* UHCI #4 */
RCBA32_OR(FD, ICH_DISABLE_UHCI(PCI_FUNC(devfn)));
break;
case PCI_DEVFN(29, 7): /* EHCI #1 */
RCBA32_OR(FD, FD_EHCI);
break;
case PCI_DEVFN(30, 2): /* AC Audio */
RCBA32_OR(FD, FD_ACAUD);
break;
case PCI_DEVFN(30, 3): /* AC Modem */
RCBA32_OR(FD, FD_ACMOD);
break;
case PCI_DEVFN(31, 0): /* LPC */
RCBA32_OR(FD, FD_LPCB);
break;
case PCI_DEVFN(31, 1): /* PATA #1 */
RCBA32_OR(FD, FD_PATA);
break;
case PCI_DEVFN(31, 2): /* SATA #1 */
RCBA32_OR(FD, FD_SATA);
break;
case PCI_DEVFN(31, 3): /* SMBUS */
RCBA32_OR(FD, FD_SMBUS);
break;
}
}
void i82801gx_enable(struct device *dev)
{
u32 reg32;
if (!dev->enabled) {
printk(BIOS_DEBUG, "%s: Disabling device\n", dev_path(dev));
/* Ensure memory, io, and bus master are all disabled */
reg32 = pci_read_config32(dev, PCI_COMMAND);
reg32 &= ~(PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY | PCI_COMMAND_IO);
pci_write_config32(dev, PCI_COMMAND, reg32);
/* Hide this device if possible */
ich_hide_devfn(dev->path.pci.devfn);
} else {
/* Enable SERR */
reg32 = pci_read_config32(dev, PCI_COMMAND);
reg32 |= PCI_COMMAND_SERR;
pci_write_config32(dev, PCI_COMMAND, reg32);
if (dev->path.pci.devfn == PCI_DEVFN(31, 2)) {
printk(BIOS_DEBUG, "Set SATA mode early\n");
sata_enable(dev);
}
}
}
static void i82801gx_init(void *chip_info)
{
/* Disable performance counter */
RCBA32_OR(FD, 1);
}
struct chip_operations southbridge_intel_i82801gx_ops = {
CHIP_NAME("Intel ICH7/ICH7-M (82801Gx) Series Southbridge")
.enable_dev = i82801gx_enable,
.init = i82801gx_init,
};
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