arch/x86/cpu/baytrail/acpi.c

   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
  14 void 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_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_MOBILE;
  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 = pmbase + 0x50;
  40         fadt->pm_tmr_blk = pmbase + 0x8;
  41         fadt->gpe0_blk = pmbase + 0x20;
  42         fadt->gpe1_blk = 0;
  43         fadt->pm1_evt_len = 4;
  44         fadt->pm1_cnt_len = 2;
  45         fadt->pm2_cnt_len = 1;
  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 = 0;
  57         fadt->day_alrm = 0x0d;
  58         fadt->mon_alrm = 0x00;
  59         fadt->century = 0x00;
  60         fadt->iapc_boot_arch = ACPI_FADT_LEGACY_DEVICES | ACPI_FADT_8042;
  61         fadt->flags = ACPI_FADT_WBINVD | ACPI_FADT_C1_SUPPORTED |
  62                 ACPI_FADT_C2_MP_SUPPORTED | 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
 138 static 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
 153 u32 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                         2, IO_APIC_ADDR, 0);
 159
 160         current += acpi_create_madt_irq_overrides(current);
 161
 162         return current;
 163 }