src/soc/intel/icelake/spi.c

   1 /*
   2  * This file is part of the coreboot project.
   3  *
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  */
  15
  16 #include <intelblocks/spi.h>
  17 #include <soc/pci_devs.h>
  18
  19 int spi_soc_devfn_to_bus(unsigned int devfn)
  20 {
  21         switch (devfn) {
  22         case PCH_DEVFN_SPI:
  23                 return 0;
  24         case PCH_DEVFN_GSPI0:
  25                 return 1;
  26         case PCH_DEVFN_GSPI1:
  27                 return 2;
  28         case PCH_DEVFN_GSPI2:
  29                 return 3;
  30         }
  31         return -1;
  32 }