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#include <console/console.h>
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ops.h>
#include <device/pci_ids.h>
static void acpi_init(struct device *dev)
{
printk(BIOS_DEBUG, "Configuring VIA ACPI\n");
// Set ACPI base address to IO 0x4000
pci_write_config32(dev, 0x48, 0x4001);
// Enable ACPI access (and setup like award)
pci_write_config8(dev, 0x41, 0x84);
// Set hardware monitor base address to IO 0x6000
pci_write_config32(dev, 0x70, 0x6001);
// Enable hardware monitor (and setup like award)
pci_write_config8(dev, 0x74, 0x01);
// set IO base address to 0x5000
pci_write_config32(dev, 0x90, 0x5001);
// Enable SMBus
pci_write_config8(dev, 0xd2, 0x01);
}
static struct device_operations acpi_ops = {
.read_resources = pci_dev_read_resources,
.set_resources = pci_dev_set_resources,
.enable_resources = pci_dev_enable_resources,
.init = acpi_init,
.enable = 0,
.ops_pci = 0,
};
static const struct pci_driver northbridge_driver __pci_driver = {
.ops = &acpi_ops,
.vendor = PCI_VENDOR_ID_VIA,
.device = PCI_DEVICE_ID_VIA_8231_4,
};
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