src/superio/nsc/pc87427/pc87427_early_init.c

   1 #include <arch/romcc_io.h>
   2 #include "pc87427.h"
   3
   4 static void pc87427_disable_dev(device_t dev)
   5 {
   6         pnp_set_logical_device(dev);
   7         pnp_set_enable(dev, 0);
   8 }
   9 static void pc87427_enable_dev(device_t dev, unsigned iobase)
  10 {
  11         pnp_set_logical_device(dev);
  12         pnp_set_enable(dev, 0);
  13         pnp_set_iobase(dev, PNP_IDX_IO0, iobase);
  14         pnp_set_enable(dev, 1);
  15 }
  16 static void xbus_cfg(device_t dev)
  17 {
  18         uint8_t i, data;
  19         uint16_t xbus_index;
  20
  21         pnp_set_logical_device(dev);
  22         /* select proper BIOS size (4MB) */
  23         pnp_write_config(dev, PC87427_XMEMCNF2, (pnp_read_config(dev, PC87427_XMEMCNF2)) | 0x04);
  24         xbus_index = pnp_read_iobase(dev, 0x60);
  25
  26         /* enable writes to devices attached to XCS0 (XBUS Chip Select 0) */
  27         for (i=0; i<= 0xf; i++) {
  28                 outb((i<<4), xbus_index + PC87427_HAP0);
  29         }
  30         return;
  31 }