src/southbridge/intel/esb6300/esb6300_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 "esb6300.h"
   7
   8 static void ide_init(struct device *dev)
   9 {
  10
  11         /* Enable ide devices so the linux ide driver will work */
  12         uint16_t word;
  13
  14         /* Enable IDE devices */
  15         pci_write_config16(dev, 0x40, 0x0a307);
  16         pci_write_config16(dev, 0x42, 0x0a307);
  17         pci_write_config8(dev, 0x48, 0x05);
  18         pci_write_config16(dev, 0x4a, 0x0101);
  19         pci_write_config16(dev, 0x54, 0x5055);
  20
  21 #if 0
  22         word = pci_read_config16(dev, 0x40);
  23         word |= (1 << 15);
  24         pci_write_config16(dev, 0x40, word);
  25         word = pci_read_config16(dev, 0x42);
  26         word |= (1 << 15);
  27         pci_write_config16(dev, 0x42, word);
  28 #endif
  29         printk(BIOS_DEBUG, "IDE Enabled\n");
  30 }
  31
  32 static void esb6300_ide_set_subsystem(device_t dev, unsigned vendor, unsigned device)
  33 {
  34         /* This value is also visible in uchi[0-2] and smbus functions */
  35         pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
  36                 ((device & 0xffff) << 16) | (vendor & 0xffff));
  37 }
  38
  39 static struct pci_operations lops_pci = {
  40         .set_subsystem = esb6300_ide_set_subsystem,
  41 };
  42 static struct device_operations ide_ops  = {
  43         .read_resources   = pci_dev_read_resources,
  44         .set_resources    = pci_dev_set_resources,
  45         .enable_resources = pci_dev_enable_resources,
  46         .init             = ide_init,
  47         .scan_bus         = 0,
  48         .ops_pci          = &lops_pci,
  49 };
  50
  51 static const struct pci_driver ide_driver __pci_driver = {
  52         .ops    = &ide_ops,
  53         .vendor = PCI_VENDOR_ID_INTEL,
  54         .device = PCI_DEVICE_ID_INTEL_6300ESB_IDE,
  55 };
  56