src/mainboard/emulation/qemu-x86/mainboard.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/keyboard.h>
   7 #include <arch/io.h>
   8 #include "chip.h"
   9
  10 /* not sure how these are routed in qemu */
  11 static const unsigned char enetIrqs[4] = { 11, 0, 0, 0 };
  12
  13 static void qemu_nb_init(device_t dev)
  14 {
  15         /* Map memory at 0xc0000 - 0xfffff */
  16         int i;
  17         uint8_t v = pci_read_config8(dev, 0x59);
  18         v |= 0x30;
  19         pci_write_config8(dev, 0x59, v);
  20         for (i=0; i<6; i++)
  21         pci_write_config8(dev, 0x5a + i, 0x33);
  22
  23         /* This sneaked in here, because Qemu does not
  24          * emulate a SuperIO chip
  25          */
  26         pc_keyboard_init(0);
  27
  28         /* The PIRQ table is not working well for interrupt routing purposes.
  29          * so we'll just set the IRQ directly.
  30         */
  31         printk(BIOS_INFO, "setting ethernet\n");
  32         pci_assign_irqs(0, 3, enetIrqs);
  33 }
  34
  35 static struct device_operations nb_operations = {
  36         .read_resources   = pci_dev_read_resources,
  37         .set_resources    = pci_dev_set_resources,
  38         .enable_resources = pci_dev_enable_resources,
  39         .init             = qemu_nb_init,
  40         .ops_pci          = 0,
  41 };
  42
  43 static const struct pci_driver nb_driver __pci_driver = {
  44         .ops = &nb_operations,
  45         .vendor = 0x8086,
  46         .device = 0x1237,
  47 };
  48
  49 static void qemu_init(device_t dev)
  50 {
  51         /* The VGA OPROM already lives at 0xc0000,
  52          * force coreboot to use it.
  53          */
  54         dev->on_mainboard = 1;
  55
  56         /* Now do the usual initialization */
  57         pci_dev_init(dev);
  58 }
  59
  60 static struct device_operations vga_operations = {
  61         .read_resources   = pci_dev_read_resources,
  62         .set_resources    = pci_dev_set_resources,
  63         .enable_resources = pci_dev_enable_resources,
  64         .init             = qemu_init,
  65         .ops_pci          = 0,
  66 };
  67
  68 static const struct pci_driver vga_driver __pci_driver = {
  69         .ops = &vga_operations,
  70         .vendor = 0x1013,
  71         .device = 0x00b8,
  72 };
  73
  74 struct chip_operations mainboard_ops = {
  75         CHIP_NAME("QEMU Mainboard")
  76 };
  77