src/southbridge/intel/i82801ex/i82801ex_ide.c

   1 #include <console/console.h>
   2 #include <device/device.h>
   3 #include <device/pci.h>
   4 #include <device/pci_ids.h>
   5 #include <device/pci_ops.h>
   6 #include "i82801ex.h"
   7
   8 static void ide_init(struct device *dev)
   9 {
  10         /* Enable IDE devices and timmings */
  11         pci_write_config16(dev, 0x40, 0x0a307); // IDE0
  12         pci_write_config16(dev, 0x42, 0x0a307); // IDE1
  13         pci_write_config8(dev, 0x48, 0x05);
  14         pci_write_config16(dev, 0x4a, 0x0101);
  15         pci_write_config16(dev, 0x54, 0x5055);
  16         printk(BIOS_DEBUG, "IDE Enabled\n");
  17 }
  18
  19 static void i82801ex_ide_set_subsystem(device_t dev, unsigned vendor, unsigned device)
  20 {
  21         /* This value is also visible in uchi[0-2] and smbus functions */
  22         pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
  23                 ((device & 0xffff) << 16) | (vendor & 0xffff));
  24 }
  25
  26 static struct pci_operations lops_pci = {
  27         .set_subsystem = i82801ex_ide_set_subsystem,
  28 };
  29 static struct device_operations ide_ops  = {
  30         .read_resources   = pci_dev_read_resources,
  31         .set_resources    = pci_dev_set_resources,
  32         .enable_resources = pci_dev_enable_resources,
  33         .init             = ide_init,
  34         .scan_bus         = 0,
  35         .ops_pci          = &lops_pci,
  36 };
  37
  38 static const struct pci_driver ide_driver __pci_driver = {
  39         .ops    = &ide_ops,
  40         .vendor = PCI_VENDOR_ID_INTEL,
  41         .device = PCI_DEVICE_ID_INTEL_82801ER_IDE,
  42 };
  43