src/southbridge/intel/lynxpoint/fadt.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <device/pci_ops.h>
   4 #include <acpi/acpi.h>
   5 #include <southbridge/intel/lynxpoint/pch.h>
   6 #include "chip.h"
   7
   8 void acpi_fill_fadt(acpi_fadt_t *fadt)
   9 {
  10         struct device *dev = pcidev_on_root(0x1f, 0);
  11         struct southbridge_intel_lynxpoint_config *cfg = dev->chip_info;
  12         u16 pmbase = get_pmbase();
  13
  14
  15         fadt->pm1a_evt_blk = pmbase + PM1_STS;
  16         fadt->pm1a_cnt_blk = pmbase + PM1_CNT;
  17         fadt->pm2_cnt_blk = pmbase + PM2_CNT;
  18         fadt->pm_tmr_blk = pmbase + PM1_TMR;
  19         if (pch_is_lp())
  20                 fadt->gpe0_blk = pmbase + LP_GPE0_STS_1;
  21         else
  22                 fadt->gpe0_blk = pmbase + GPE0_STS;
  23
  24         /*
  25          * Some of the lengths here are doubled. This is because they describe
  26          * blocks containing two registers, where the size of each register
  27          * is found by halving the block length. See Table 5-34 and section
  28          * 4.8.3 of the ACPI specification for details.
  29          */
  30         fadt->pm1_evt_len = 2 * 2;
  31         fadt->pm1_cnt_len = 2;
  32         fadt->pm2_cnt_len = 1;
  33         fadt->pm_tmr_len = 4;
  34         if (pch_is_lp())
  35                 fadt->gpe0_blk_len = 2 * 16;
  36         else
  37                 fadt->gpe0_blk_len = 2 * 8;
  38
  39         fill_fadt_extended_pm_io(fadt);
  40
  41         fadt->iapc_boot_arch = ACPI_FADT_LEGACY_DEVICES | ACPI_FADT_8042;
  42
  43         fadt->flags |= ACPI_FADT_WBINVD |
  44                        ACPI_FADT_C1_SUPPORTED |
  45                        ACPI_FADT_SLEEP_BUTTON |
  46                        ACPI_FADT_SEALED_CASE |
  47                        ACPI_FADT_S4_RTC_WAKE |
  48                        ACPI_FADT_PLATFORM_CLOCK;
  49
  50         if (cfg && cfg->docking_supported)
  51                 fadt->flags |= ACPI_FADT_DOCKING_SUPPORTED;
  52 }