src/soc/amd/stoneyridge/acpi.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 /*
   4  * ACPI - create the Fixed ACPI Description Tables (FADT)
   5  */
   6
   7 #include <console/console.h>
   8 #include <acpi/acpi.h>
   9 #include <acpi/acpigen.h>
  10 #include <device/pci_ops.h>
  11 #include <arch/ioapic.h>
  12 #include <arch/smp/mpspec.h>
  13 #include <device/device.h>
  14 #include <device/pci.h>
  15 #include <gpio.h>
  16 #include <amdblocks/acpimmio.h>
  17 #include <amdblocks/acpi.h>
  18 #include <amdblocks/cpu.h>
  19 #include <amdblocks/ioapic.h>
  20 #include <soc/acpi.h>
  21 #include <soc/pci_devs.h>
  22 #include <soc/southbridge.h>
  23 #include <soc/northbridge.h>
  24
  25 /*
  26  * Reference section 5.2.9 Fixed ACPI Description Table (FADT)
  27  * in the ACPI 3.0b specification.
  28  */
  29 void acpi_fill_fadt(acpi_fadt_t *fadt)
  30 {
  31         printk(BIOS_DEBUG, "pm_base: 0x%04x\n", ACPI_IO_BASE);
  32
  33
  34         fadt->pm1a_evt_blk = ACPI_PM_EVT_BLK;
  35         fadt->pm1a_cnt_blk = ACPI_PM1_CNT_BLK;
  36         fadt->pm_tmr_blk = ACPI_PM_TMR_BLK;
  37         fadt->gpe0_blk = ACPI_GPE0_BLK;
  38
  39         fadt->pm1_evt_len = 4;  /* 32 bits */
  40         fadt->pm1_cnt_len = 2;  /* 16 bits */
  41         fadt->pm_tmr_len = 4;   /* 32 bits */
  42         fadt->gpe0_blk_len = 8; /* 64 bits */
  43
  44         fill_fadt_extended_pm_io(fadt);
  45
  46         fadt->duty_offset = 1;  /* CLK_VAL bits 3:1 */
  47         fadt->duty_width = 3;   /* CLK_VAL bits 3:1 */
  48         fadt->iapc_boot_arch = FADT_BOOT_ARCH;  /* See table 5-10 */
  49         fadt->flags |= ACPI_FADT_WBINVD | /* See table 5-10 ACPI 3.0a spec */
  50                                 ACPI_FADT_C1_SUPPORTED |
  51                                 ACPI_FADT_SLEEP_BUTTON |
  52                                 ACPI_FADT_S4_RTC_WAKE |
  53                                 ACPI_FADT_32BIT_TIMER |
  54                                 ACPI_FADT_PCI_EXPRESS_WAKE |
  55                                 ACPI_FADT_PLATFORM_CLOCK |
  56                                 ACPI_FADT_S4_RTC_VALID |
  57                                 ACPI_FADT_REMOTE_POWER_ON;
  58 }
  59
  60 const acpi_cstate_t cstate_cfg_table[] = {
  61         [0] = {
  62                 .ctype = 1,
  63                 .latency = 1,
  64                 .power = 0,
  65         },
  66         [1] = {
  67                 .ctype = 2,
  68                 .latency = 400,
  69                 .power = 0,
  70         },
  71 };
  72
  73 const acpi_cstate_t *get_cstate_config_data(size_t *size)
  74 {
  75         *size = ARRAY_SIZE(cstate_cfg_table);
  76         return cstate_cfg_table;
  77 }