src/southbridge/amd/amd8111/amd8111_acpi.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 <pc80/mc146818rtc.h>
   7 #include "amd8111.h"
   8
   9 #define PREVIOUS_POWER_STATE 0x43
  10 #define MAINBOARD_POWER_OFF 0
  11 #define MAINBOARD_POWER_ON 1
  12
  13 #ifndef MAINBOARD_POWER_ON_AFTER_POWER_FAIL
  14 #define MAINBOARD_POWER_ON_AFTER_POWER_FAIL MAINBOARD_POWER_ON
  15 #endif
  16
  17
  18 static void acpi_init(struct device *dev)
  19 {
  20         uint8_t byte;
  21         uint16_t word;
  22         int on;
  23
  24 #if 0
  25         printk_debug("ACPI: disabling NMI watchdog.. ");
  26         pci_read_config_byte(dev, 0x49, &byte);
  27         pci_write_config_byte(dev, 0x49, byte | (1<<2));
  28
  29
  30         pci_read_config_byte(dev, 0x41, &byte);
  31         pci_write_config_byte(dev, 0x41, byte | (1<<6)|(1<<2));
  32
  33         /* added from sourceforge */
  34         pci_read_config_byte(dev, 0x48, &byte);
  35         pci_write_config_byte(dev, 0x48, byte | (1<<3));
  36
  37         printk_debug("done.\n");
  38
  39
  40         printk_debug("ACPI: Routing IRQ 12 to PS2 port.. ");
  41         pci_read_config_word(dev, 0x46, &word);
  42         pci_write_config_word(dev, 0x46, word | (1<<9));
  43         printk_debug("done.\n");
  44
  45
  46         printk_debug("ACPI: setting PM class code.. ");
  47         pci_write_config_dword(dev, 0x60, 0x06800000);
  48         printk_debug("done.\n");
  49 #endif
  50         on = MAINBOARD_POWER_ON_AFTER_POWER_FAIL;
  51         get_option(&on, "power_on_after_fail");
  52         byte = pci_read_config8(dev, PREVIOUS_POWER_STATE);
  53         byte &= ~0x40;
  54         if (!on) {
  55                 byte |= 0x40;
  56         }
  57         pci_write_config8(dev, PREVIOUS_POWER_STATE, byte);
  58         printk_info("set power %s after power fail\n", on?"on":"off");
  59
  60 }
  61
  62 static struct device_operations acpi_ops  = {
  63         .read_resources   = pci_dev_read_resources,
  64         .set_resources    = pci_dev_set_resources,
  65         .enable_resources = pci_dev_enable_resources,
  66         .init             = acpi_init,
  67         .scan_bus         = 0,
  68         .enable           = amd8111_enable,
  69 };
  70
  71 static struct pci_driver acpi_driver __pci_driver = {
  72         .ops    = &acpi_ops,
  73         .vendor = PCI_VENDOR_ID_AMD,
  74         .device = PCI_DEVICE_ID_AMD_8111_ACPI,
  75 };
  76