src/mainboard/getac/p470/cstates.c

   1 /*
   2  * This file is part of the coreboot project.
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; version 2 of the License.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  */
  13
  14 #include <arch/acpigen.h>
  15 #include <southbridge/intel/i82801gx/i82801gx.h>
  16
  17 static acpi_cstate_t cst_entries[] = {
  18         {
  19                 /* ACPI C1 / CPU C1 */
  20                 1, 0x01, 1000,
  21                 { ACPI_ADDRESS_SPACE_FIXED, 1, 2, 1, 0, 0 }
  22         },
  23         {
  24                 /* ACPI C2 / CPU C2 */
  25                 2, 0x01,  500,
  26                 { ACPI_ADDRESS_SPACE_IO, 8, 0, 0, DEFAULT_PMBASE + LV2, 0 }
  27         },
  28         {
  29                 /* ACPI C3 / CPU C2 */
  30                 2, 0x11,  250,
  31                 { ACPI_ADDRESS_SPACE_IO, 8, 0, 0, DEFAULT_PMBASE + LV3, 0 }
  32         },
  33 };
  34
  35 int get_cst_entries(acpi_cstate_t **entries)
  36 {
  37         *entries = cst_entries;
  38         return ARRAY_SIZE(cst_entries);
  39 }