uboot/arch/x86/cpu/quark/acpi.c
<<
>>
Prefs
   1/*
   2 * Copyright (C) 2016, Bin Meng <bmeng.cn@gmail.com>
   3 *
   4 * SPDX-License-Identifier:     GPL-2.0+
   5 */
   6
   7#include <common.h>
   8#include <asm/acpi_table.h>
   9#include <asm/ioapic.h>
  10#include <asm/mpspec.h>
  11#include <asm/tables.h>
  12#include <asm/arch/iomap.h>
  13
  14void acpi_create_fadt(struct acpi_fadt *fadt, struct acpi_facs *facs,
  15                      void *dsdt)
  16{
  17        struct acpi_table_header *header = &(fadt->header);
  18        u16 pmbase = ACPI_PM1_BASE_ADDRESS;
  19
  20        memset((void *)fadt, 0, sizeof(struct acpi_fadt));
  21
  22        acpi_fill_header(header, "FACP");
  23        header->length = sizeof(struct acpi_fadt);
  24        header->revision = 4;
  25
  26        fadt->firmware_ctrl = (u32)facs;
  27        fadt->dsdt = (u32)dsdt;
  28        fadt->preferred_pm_profile = ACPI_PM_UNSPECIFIED;
  29        fadt->sci_int = 9;
  30        fadt->smi_cmd = 0;
  31        fadt->acpi_enable = 0;
  32        fadt->acpi_disable = 0;
  33        fadt->s4bios_req = 0;
  34        fadt->pstate_cnt = 0;
  35        fadt->pm1a_evt_blk = pmbase;
  36        fadt->pm1b_evt_blk = 0x0;
  37        fadt->pm1a_cnt_blk = pmbase + 0x4;
  38        fadt->pm1b_cnt_blk = 0x0;
  39        fadt->pm2_cnt_blk = 0x0;
  40        fadt->pm_tmr_blk = pmbase + 0x8;
  41        fadt->gpe0_blk = ACPI_GPE0_BASE_ADDRESS;
  42        fadt->gpe1_blk = 0;
  43        fadt->pm1_evt_len = 4;
  44        fadt->pm1_cnt_len = 2;
  45        fadt->pm2_cnt_len = 0;
  46        fadt->pm_tmr_len = 4;
  47        fadt->gpe0_blk_len = 8;
  48        fadt->gpe1_blk_len = 0;
  49        fadt->gpe1_base = 0;
  50        fadt->cst_cnt = 0;
  51        fadt->p_lvl2_lat = ACPI_FADT_C2_NOT_SUPPORTED;
  52        fadt->p_lvl3_lat = ACPI_FADT_C3_NOT_SUPPORTED;
  53        fadt->flush_size = 0;
  54        fadt->flush_stride = 0;
  55        fadt->duty_offset = 1;
  56        fadt->duty_width = 3;
  57        fadt->day_alrm = 0x00;
  58        fadt->mon_alrm = 0x00;
  59        fadt->century = 0x00;
  60        fadt->iapc_boot_arch = ACPI_FADT_LEGACY_DEVICES;
  61        fadt->flags = ACPI_FADT_WBINVD | ACPI_FADT_C1_SUPPORTED |
  62                ACPI_FADT_POWER_BUTTON | ACPI_FADT_SLEEP_BUTTON |
  63                ACPI_FADT_S4_RTC_WAKE | ACPI_FADT_RESET_REGISTER |
  64                ACPI_FADT_PLATFORM_CLOCK;
  65
  66        fadt->reset_reg.space_id = ACPI_ADDRESS_SPACE_IO;
  67        fadt->reset_reg.bit_width = 8;
  68        fadt->reset_reg.bit_offset = 0;
  69        fadt->reset_reg.access_size = ACPI_ACCESS_SIZE_BYTE_ACCESS;
  70        fadt->reset_reg.addrl = IO_PORT_RESET;
  71        fadt->reset_reg.addrh = 0;
  72        fadt->reset_value = SYS_RST | RST_CPU;
  73
  74        fadt->x_firmware_ctl_l = (u32)facs;
  75        fadt->x_firmware_ctl_h = 0;
  76        fadt->x_dsdt_l = (u32)dsdt;
  77        fadt->x_dsdt_h = 0;
  78
  79        fadt->x_pm1a_evt_blk.space_id = ACPI_ADDRESS_SPACE_IO;
  80        fadt->x_pm1a_evt_blk.bit_width = fadt->pm1_evt_len * 8;
  81        fadt->x_pm1a_evt_blk.bit_offset = 0;
  82        fadt->x_pm1a_evt_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS;
  83        fadt->x_pm1a_evt_blk.addrl = fadt->pm1a_evt_blk;
  84        fadt->x_pm1a_evt_blk.addrh = 0x0;
  85
  86        fadt->x_pm1b_evt_blk.space_id = ACPI_ADDRESS_SPACE_IO;
  87        fadt->x_pm1b_evt_blk.bit_width = 0;
  88        fadt->x_pm1b_evt_blk.bit_offset = 0;
  89        fadt->x_pm1b_evt_blk.access_size = 0;
  90        fadt->x_pm1b_evt_blk.addrl = 0x0;
  91        fadt->x_pm1b_evt_blk.addrh = 0x0;
  92
  93        fadt->x_pm1a_cnt_blk.space_id = ACPI_ADDRESS_SPACE_IO;
  94        fadt->x_pm1a_cnt_blk.bit_width = fadt->pm1_cnt_len * 8;
  95        fadt->x_pm1a_cnt_blk.bit_offset = 0;
  96        fadt->x_pm1a_cnt_blk.access_size = ACPI_ACCESS_SIZE_WORD_ACCESS;
  97        fadt->x_pm1a_cnt_blk.addrl = fadt->pm1a_cnt_blk;
  98        fadt->x_pm1a_cnt_blk.addrh = 0x0;
  99
 100        fadt->x_pm1b_cnt_blk.space_id = ACPI_ADDRESS_SPACE_IO;
 101        fadt->x_pm1b_cnt_blk.bit_width = 0;
 102        fadt->x_pm1b_cnt_blk.bit_offset = 0;
 103        fadt->x_pm1b_cnt_blk.access_size = 0;
 104        fadt->x_pm1b_cnt_blk.addrl = 0x0;
 105        fadt->x_pm1b_cnt_blk.addrh = 0x0;
 106
 107        fadt->x_pm2_cnt_blk.space_id = ACPI_ADDRESS_SPACE_IO;
 108        fadt->x_pm2_cnt_blk.bit_width = fadt->pm2_cnt_len * 8;
 109        fadt->x_pm2_cnt_blk.bit_offset = 0;
 110        fadt->x_pm2_cnt_blk.access_size = ACPI_ACCESS_SIZE_BYTE_ACCESS;
 111        fadt->x_pm2_cnt_blk.addrl = fadt->pm2_cnt_blk;
 112        fadt->x_pm2_cnt_blk.addrh = 0x0;
 113
 114        fadt->x_pm_tmr_blk.space_id = ACPI_ADDRESS_SPACE_IO;
 115        fadt->x_pm_tmr_blk.bit_width = fadt->pm_tmr_len * 8;
 116        fadt->x_pm_tmr_blk.bit_offset = 0;
 117        fadt->x_pm_tmr_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS;
 118        fadt->x_pm_tmr_blk.addrl = fadt->pm_tmr_blk;
 119        fadt->x_pm_tmr_blk.addrh = 0x0;
 120
 121        fadt->x_gpe0_blk.space_id = ACPI_ADDRESS_SPACE_IO;
 122        fadt->x_gpe0_blk.bit_width = fadt->gpe0_blk_len * 8;
 123        fadt->x_gpe0_blk.bit_offset = 0;
 124        fadt->x_gpe0_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS;
 125        fadt->x_gpe0_blk.addrl = fadt->gpe0_blk;
 126        fadt->x_gpe0_blk.addrh = 0x0;
 127
 128        fadt->x_gpe1_blk.space_id = ACPI_ADDRESS_SPACE_IO;
 129        fadt->x_gpe1_blk.bit_width = 0;
 130        fadt->x_gpe1_blk.bit_offset = 0;
 131        fadt->x_gpe1_blk.access_size = 0;
 132        fadt->x_gpe1_blk.addrl = 0x0;
 133        fadt->x_gpe1_blk.addrh = 0x0;
 134
 135        header->checksum = table_compute_checksum(fadt, header->length);
 136}
 137
 138static int acpi_create_madt_irq_overrides(u32 current)
 139{
 140        struct acpi_madt_irqoverride *irqovr;
 141        u16 sci_flags = MP_IRQ_TRIGGER_LEVEL | MP_IRQ_POLARITY_HIGH;
 142        int length = 0;
 143
 144        irqovr = (void *)current;
 145        length += acpi_create_madt_irqoverride(irqovr, 0, 0, 2, 0);
 146
 147        irqovr = (void *)(current + length);
 148        length += acpi_create_madt_irqoverride(irqovr, 0, 9, 9, sci_flags);
 149
 150        return length;
 151}
 152
 153u32 acpi_fill_madt(u32 current)
 154{
 155        current += acpi_create_madt_lapics(current);
 156
 157        current += acpi_create_madt_ioapic((struct acpi_madt_ioapic *)current,
 158                        io_apic_read(IO_APIC_ID) >> 24, IO_APIC_ADDR, 0);
 159
 160        current += acpi_create_madt_irq_overrides(current);
 161
 162        return current;
 163}
 164