arch/x86/cpu/quark/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/global_nvs.h>
  13 #include <asm/arch/iomap.h>
  14
  15 void acpi_create_fadt(struct acpi_fadt *fadt, struct acpi_facs *facs,
  16                       void *dsdt)
  17 {
  18         struct acpi_table_header *header = &(fadt->header);
  19         u16 pmbase = ACPI_PM1_BASE_ADDRESS;
  20
  21         memset((void *)fadt, 0, sizeof(struct acpi_fadt));
  22
  23         acpi_fill_header(header, "FACP");
  24         header->length = sizeof(struct acpi_fadt);
  25         header->revision = 4;
  26
  27         fadt->firmware_ctrl = (u32)facs;
  28         fadt->dsdt = (u32)dsdt;
  29         fadt->preferred_pm_profile = ACPI_PM_UNSPECIFIED;
  30         fadt->sci_int = 9;
  31         fadt->smi_cmd = 0;
  32         fadt->acpi_enable = 0;
  33         fadt->acpi_disable = 0;
  34         fadt->s4bios_req = 0;
  35         fadt->pstate_cnt = 0;
  36         fadt->pm1a_evt_blk = pmbase;
  37         fadt->pm1b_evt_blk = 0x0;
  38         fadt->pm1a_cnt_blk = pmbase + 0x4;
  39         fadt->pm1b_cnt_blk = 0x0;
  40         fadt->pm2_cnt_blk = 0x0;
  41         fadt->pm_tmr_blk = pmbase + 0x8;
  42         fadt->gpe0_blk = ACPI_GPE0_BASE_ADDRESS;
  43         fadt->gpe1_blk = 0;
  44         fadt->pm1_evt_len = 4;
  45         fadt->pm1_cnt_len = 2;
  46         fadt->pm2_cnt_len = 0;
  47         fadt->pm_tmr_len = 4;
  48         fadt->gpe0_blk_len = 8;
  49         fadt->gpe1_blk_len = 0;
  50         fadt->gpe1_base = 0;
  51         fadt->cst_cnt = 0;
  52         fadt->p_lvl2_lat = ACPI_FADT_C2_NOT_SUPPORTED;
  53         fadt->p_lvl3_lat = ACPI_FADT_C3_NOT_SUPPORTED;
  54         fadt->flush_size = 0;
  55         fadt->flush_stride = 0;
  56         fadt->duty_offset = 1;
  57         fadt->duty_width = 3;
  58         fadt->day_alrm = 0x00;
  59         fadt->mon_alrm = 0x00;
  60         fadt->century = 0x00;
  61         fadt->iapc_boot_arch = ACPI_FADT_LEGACY_DEVICES;
  62         fadt->flags = ACPI_FADT_WBINVD | ACPI_FADT_C1_SUPPORTED |
  63                 ACPI_FADT_POWER_BUTTON | ACPI_FADT_SLEEP_BUTTON |
  64                 ACPI_FADT_S4_RTC_WAKE | ACPI_FADT_RESET_REGISTER |
  65                 ACPI_FADT_PLATFORM_CLOCK;
  66
  67         fadt->reset_reg.space_id = ACPI_ADDRESS_SPACE_IO;
  68         fadt->reset_reg.bit_width = 8;
  69         fadt->reset_reg.bit_offset = 0;
  70         fadt->reset_reg.access_size = ACPI_ACCESS_SIZE_BYTE_ACCESS;
  71         fadt->reset_reg.addrl = IO_PORT_RESET;
  72         fadt->reset_reg.addrh = 0;
  73         fadt->reset_value = SYS_RST | RST_CPU;
  74
  75         fadt->x_firmware_ctl_l = (u32)facs;
  76         fadt->x_firmware_ctl_h = 0;
  77         fadt->x_dsdt_l = (u32)dsdt;
  78         fadt->x_dsdt_h = 0;
  79
  80         fadt->x_pm1a_evt_blk.space_id = ACPI_ADDRESS_SPACE_IO;
  81         fadt->x_pm1a_evt_blk.bit_width = fadt->pm1_evt_len * 8;
  82         fadt->x_pm1a_evt_blk.bit_offset = 0;
  83         fadt->x_pm1a_evt_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS;
  84         fadt->x_pm1a_evt_blk.addrl = fadt->pm1a_evt_blk;
  85         fadt->x_pm1a_evt_blk.addrh = 0x0;
  86
  87         fadt->x_pm1b_evt_blk.space_id = ACPI_ADDRESS_SPACE_IO;
  88         fadt->x_pm1b_evt_blk.bit_width = 0;
  89         fadt->x_pm1b_evt_blk.bit_offset = 0;
  90         fadt->x_pm1b_evt_blk.access_size = 0;
  91         fadt->x_pm1b_evt_blk.addrl = 0x0;
  92         fadt->x_pm1b_evt_blk.addrh = 0x0;
  93
  94         fadt->x_pm1a_cnt_blk.space_id = ACPI_ADDRESS_SPACE_IO;
  95         fadt->x_pm1a_cnt_blk.bit_width = fadt->pm1_cnt_len * 8;
  96         fadt->x_pm1a_cnt_blk.bit_offset = 0;
  97         fadt->x_pm1a_cnt_blk.access_size = ACPI_ACCESS_SIZE_WORD_ACCESS;
  98         fadt->x_pm1a_cnt_blk.addrl = fadt->pm1a_cnt_blk;
  99         fadt->x_pm1a_cnt_blk.addrh = 0x0;
 100
 101         fadt->x_pm1b_cnt_blk.space_id = ACPI_ADDRESS_SPACE_IO;
 102         fadt->x_pm1b_cnt_blk.bit_width = 0;
 103         fadt->x_pm1b_cnt_blk.bit_offset = 0;
 104         fadt->x_pm1b_cnt_blk.access_size = 0;
 105         fadt->x_pm1b_cnt_blk.addrl = 0x0;
 106         fadt->x_pm1b_cnt_blk.addrh = 0x0;
 107
 108         fadt->x_pm2_cnt_blk.space_id = ACPI_ADDRESS_SPACE_IO;
 109         fadt->x_pm2_cnt_blk.bit_width = fadt->pm2_cnt_len * 8;
 110         fadt->x_pm2_cnt_blk.bit_offset = 0;
 111         fadt->x_pm2_cnt_blk.access_size = ACPI_ACCESS_SIZE_BYTE_ACCESS;
 112         fadt->x_pm2_cnt_blk.addrl = fadt->pm2_cnt_blk;
 113         fadt->x_pm2_cnt_blk.addrh = 0x0;
 114
 115         fadt->x_pm_tmr_blk.space_id = ACPI_ADDRESS_SPACE_IO;
 116         fadt->x_pm_tmr_blk.bit_width = fadt->pm_tmr_len * 8;
 117         fadt->x_pm_tmr_blk.bit_offset = 0;
 118         fadt->x_pm_tmr_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS;
 119         fadt->x_pm_tmr_blk.addrl = fadt->pm_tmr_blk;
 120         fadt->x_pm_tmr_blk.addrh = 0x0;
 121
 122         fadt->x_gpe0_blk.space_id = ACPI_ADDRESS_SPACE_IO;
 123         fadt->x_gpe0_blk.bit_width = fadt->gpe0_blk_len * 8;
 124         fadt->x_gpe0_blk.bit_offset = 0;
 125         fadt->x_gpe0_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS;
 126         fadt->x_gpe0_blk.addrl = fadt->gpe0_blk;
 127         fadt->x_gpe0_blk.addrh = 0x0;
 128
 129         fadt->x_gpe1_blk.space_id = ACPI_ADDRESS_SPACE_IO;
 130         fadt->x_gpe1_blk.bit_width = 0;
 131         fadt->x_gpe1_blk.bit_offset = 0;
 132         fadt->x_gpe1_blk.access_size = 0;
 133         fadt->x_gpe1_blk.addrl = 0x0;
 134         fadt->x_gpe1_blk.addrh = 0x0;
 135
 136         header->checksum = table_compute_checksum(fadt, header->length);
 137 }
 138
 139 static int acpi_create_madt_irq_overrides(u32 current)
 140 {
 141         struct acpi_madt_irqoverride *irqovr;
 142         u16 sci_flags = MP_IRQ_TRIGGER_LEVEL | MP_IRQ_POLARITY_HIGH;
 143         int length = 0;
 144
 145         irqovr = (void *)current;
 146         length += acpi_create_madt_irqoverride(irqovr, 0, 0, 2, 0);
 147
 148         irqovr = (void *)(current + length);
 149         length += acpi_create_madt_irqoverride(irqovr, 0, 9, 9, sci_flags);
 150
 151         return length;
 152 }
 153
 154 u32 acpi_fill_madt(u32 current)
 155 {
 156         current += acpi_create_madt_lapics(current);
 157
 158         current += acpi_create_madt_ioapic((struct acpi_madt_ioapic *)current,
 159                         io_apic_read(IO_APIC_ID) >> 24, IO_APIC_ADDR, 0);
 160
 161         current += acpi_create_madt_irq_overrides(current);
 162
 163         return current;
 164 }
 165
 166 void acpi_create_gnvs(struct acpi_global_nvs *gnvs)
 167 {
 168         /* quark is a uni-processor */
 169         gnvs->pcnt = 1;
 170 }