src/mainboard/asus/p2b/mainboard.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <device/pci_ops.h>
   4 #include <southbridge/intel/i82371eb/i82371eb.h>
   5
   6 /**
   7  * Mainboard specific enables.
   8  *
   9  * @param chip_info Ignored
  10  */
  11 static void mainboard_init(void *chip_info)
  12 {
  13         const pci_devfn_t px43 = PCI_DEV(0, 4, 3);
  14         u32 reg;
  15         /*
  16          * Set up an 8-byte generic I/O decode block at device 9.
  17          * This will be for W83781D hardware monitor.
  18          * Port 0x290 mask 0x007
  19          *
  20          * This should enable access to W83781D over the ISA bus.
  21          */
  22         reg = pci_s_read_config32(px43, DEVRESB);
  23         reg |= (0x290 | (0xe7 << 16));
  24         pci_s_write_config32(px43, DEVRESB, reg);
  25 }
  26
  27 struct chip_operations mainboard_ops = {
  28         .init = mainboard_init
  29 };