src/soc/amd/cezanne/acpi.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 /* ACPI - create the Fixed ACPI Description Tables (FADT) */
   4
   5 #include <acpi/acpi.h>
   6 #include <acpi/acpigen.h>
   7 #include <amdblocks/acpi.h>
   8 #include <amdblocks/cppc.h>
   9 #include <amdblocks/cpu.h>
  10 #include <amdblocks/acpimmio.h>
  11 #include <amdblocks/ioapic.h>
  12 #include <arch/ioapic.h>
  13 #include <arch/smp/mpspec.h>
  14 #include <console/console.h>
  15 #include <cpu/amd/cpuid.h>
  16 #include <device/device.h>
  17 #include <soc/iomap.h>
  18 #include <static.h>
  19 #include <types.h>
  20 #include "chip.h"
  21
  22 /*
  23  * Reference section 5.2.9 Fixed ACPI Description Table (FADT)
  24  * in the ACPI 3.0b specification.
  25  */
  26 void acpi_fill_fadt(acpi_fadt_t *fadt)
  27 {
  28         const struct soc_amd_cezanne_config *cfg = config_of_soc();
  29
  30         printk(BIOS_DEBUG, "pm_base: 0x%04x\n", ACPI_IO_BASE);
  31
  32         fadt->pm1a_evt_blk = ACPI_PM_EVT_BLK;
  33         fadt->pm1a_cnt_blk = ACPI_PM1_CNT_BLK;
  34         fadt->pm_tmr_blk = ACPI_PM_TMR_BLK;
  35         fadt->gpe0_blk = ACPI_GPE0_BLK;
  36
  37         fadt->pm1_evt_len = 4;  /* 32 bits */
  38         fadt->pm1_cnt_len = 2;  /* 16 bits */
  39         fadt->pm_tmr_len = 4;   /* 32 bits */
  40         fadt->gpe0_blk_len = 8; /* 64 bits */
  41
  42         fill_fadt_extended_pm_io(fadt);
  43
  44         fadt->iapc_boot_arch = cfg->common_config.fadt_boot_arch; /* legacy free default */
  45         fadt->flags |=  ACPI_FADT_WBINVD | /* See table 5-34 ACPI 6.3 spec */
  46                         ACPI_FADT_C1_SUPPORTED |
  47                         ACPI_FADT_S4_RTC_WAKE |
  48                         ACPI_FADT_32BIT_TIMER |
  49                         ACPI_FADT_PCI_EXPRESS_WAKE |
  50                         ACPI_FADT_PLATFORM_CLOCK |
  51                         ACPI_FADT_S4_RTC_VALID |
  52                         ACPI_FADT_REMOTE_POWER_ON;
  53         if (cfg->s0ix_enable)
  54                 fadt->flags |= ACPI_FADT_LOW_PWR_IDLE_S0;
  55
  56         fadt->flags |= cfg->common_config.fadt_flags; /* additional board-specific flags */
  57 }
  58
  59 unsigned long soc_acpi_write_tables(const struct device *device, unsigned long current,
  60                                     acpi_rsdp_t *rsdp)
  61 {
  62         /* IVRS */
  63         current = acpi_add_ivrs_table(current, rsdp);
  64
  65         if (CONFIG(PLATFORM_USES_FSP2_0))
  66                 current = acpi_add_fsp_tables(current, rsdp);
  67
  68         return current;
  69 }
  70
  71 const acpi_cstate_t cstate_cfg_table[] = {
  72         [0] = {
  73                 .ctype = 1,
  74                 .latency = 1,
  75                 .power = 0,
  76         },
  77         [1] = {
  78                 .ctype = 2,
  79                 .latency = 0x12,
  80                 .power = 0,
  81         },
  82         [2] = {
  83                 .ctype = 3,
  84                 .latency = 350,
  85                 .power = 0,
  86         },
  87 };
  88
  89 const acpi_cstate_t *get_cstate_config_data(size_t *size)
  90 {
  91         *size = ARRAY_SIZE(cstate_cfg_table);
  92         return cstate_cfg_table;
  93 }