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#include <console/console.h>
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <device/chip.h>
#include "amd8111.h"
void amd8111_enable(device_t dev)
{
device_t lpc_dev;
device_t bus_dev;
unsigned index;
uint16_t reg_old, reg;
uint8_t byte;
/* See if we are on the behind the amd8111 pci bridge */
bus_dev = dev->bus->dev;
if ((bus_dev->vendor == PCI_VENDOR_ID_AMD) &&
(bus_dev->device == PCI_DEVICE_ID_AMD_8111_PCI)) {
unsigned devfn;
devfn = bus_dev->path.u.pci.devfn + (1 << 3);
lpc_dev = dev_find_slot(bus_dev->bus->secondary, devfn);
index = ((dev->path.u.pci.devfn & ~7) >> 3) + 8;
} else {
unsigned devfn;
devfn = (dev->path.u.pci.devfn) & ~7;
lpc_dev = dev_find_slot(dev->bus->secondary, devfn);
index = dev->path.u.pci.devfn & 7;
}
if ((!lpc_dev) || (index >= 16)) {
return;
}
if ((lpc_dev->vendor != PCI_VENDOR_ID_AMD) ||
(lpc_dev->device != PCI_DEVICE_ID_AMD_8111_ISA)) {
uint32_t id;
id = pci_read_config32(lpc_dev, PCI_VENDOR_ID);
if (id != (PCI_VENDOR_ID_AMD | (PCI_DEVICE_ID_AMD_8111_ISA << 16))) {
return;
}
}
if ((dev->vendor == PCI_VENDOR_ID_AMD) &&
(dev->device == PCI_DEVICE_ID_AMD_8111_USB2)) {
if(!dev->enabled) {
byte = pci_read_config8(lpc_dev, 0x47);
byte |= (1<<7);
pci_write_config8(lpc_dev, 0x47, byte);
return;
}
}
reg = reg_old = pci_read_config16(lpc_dev, 0x48);
reg &= ~(1 << index);
if (dev->enabled) {
reg |= (1 << index);
}
if (reg != reg_old) {
pci_write_config16(lpc_dev, 0x48, reg);
}
}
struct chip_control southbridge_amd_amd8111_control = {
.name = "AMD 8111 Southbridge",
.enable_dev = amd8111_enable,
};
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