src/soc/amd/mendocino/acpi.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 /* TODO: Check if this is still correct */
   4
   5 /* ACPI - create the Fixed ACPI Description Tables (FADT) */
   6
   7 #include <acpi/acpi.h>
   8 #include <acpi/acpigen.h>
   9 #include <amdblocks/acpi.h>
  10 #include <amdblocks/cppc.h>
  11 #include <amdblocks/cpu.h>
  12 #include <amdblocks/acpimmio.h>
  13 #include <amdblocks/ioapic.h>
  14 #include <arch/ioapic.h>
  15 #include <arch/smp/mpspec.h>
  16 #include <console/console.h>
  17 #include <cpu/amd/cpuid.h>
  18 #include <device/device.h>
  19 #include <soc/iomap.h>
  20 #include <static.h>
  21 #include <types.h>
  22 #include "chip.h"
  23
  24 /*
  25  * Reference section 5.2.9 Fixed ACPI Description Table (FADT)
  26  * in the ACPI 3.0b specification.
  27  */
  28 void acpi_fill_fadt(acpi_fadt_t *fadt)
  29 {
  30         const struct soc_amd_mendocino_config *cfg = config_of_soc();
  31
  32         printk(BIOS_DEBUG, "pm_base: 0x%04x\n", ACPI_IO_BASE);
  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->iapc_boot_arch = cfg->common_config.fadt_boot_arch; /* legacy free default */
  47         fadt->flags |=  ACPI_FADT_WBINVD | /* See table 5-34 ACPI 6.3 spec */
  48                         ACPI_FADT_C1_SUPPORTED |
  49                         ACPI_FADT_S4_RTC_WAKE |
  50                         ACPI_FADT_32BIT_TIMER |
  51                         ACPI_FADT_PCI_EXPRESS_WAKE |
  52                         ACPI_FADT_PLATFORM_CLOCK |
  53                         ACPI_FADT_S4_RTC_VALID |
  54                         ACPI_FADT_REMOTE_POWER_ON;
  55         if (cfg->s0ix_enable)
  56                 fadt->flags |= ACPI_FADT_LOW_PWR_IDLE_S0;
  57
  58         fadt->flags |= cfg->common_config.fadt_flags; /* additional board-specific flags */
  59 }
  60
  61 unsigned long soc_acpi_write_tables(const struct device *device, unsigned long current,
  62                                     acpi_rsdp_t *rsdp)
  63 {
  64         /* IVRS */
  65         current = acpi_add_ivrs_table(current, rsdp);
  66
  67         if (CONFIG(PLATFORM_USES_FSP2_0))
  68                 current = acpi_add_fsp_tables(current, rsdp);
  69
  70         return current;
  71 }
  72
  73 const acpi_cstate_t cstate_cfg_table[] = {
  74         [0] = {
  75                 .ctype = 1,
  76                 .latency = 1,
  77                 .power = 0,
  78         },
  79         [1] = {
  80                 .ctype = 2,
  81                 .latency = 0x12,
  82                 .power = 0,
  83         },
  84         [2] = {
  85                 .ctype = 3,
  86                 .latency = 350,
  87                 .power = 0,
  88         },
  89 };
  90
  91 const acpi_cstate_t *get_cstate_config_data(size_t *size)
  92 {
  93         *size = ARRAY_SIZE(cstate_cfg_table);
  94         return cstate_cfg_table;
  95 }