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e94019ede7
This patch mainly adds ACPI support to QEMU. Verified by booting Linux kernel on QEMU Q35. Signed-off-by: Saket Sinha <saket.sinha89@gmail.com> Minor whitespace fixes and dropped mention of i440FX in commit message: Signed-off-by: Simon Glass <sjg@chromium.org>
177 lines
5.1 KiB
C
177 lines
5.1 KiB
C
/*
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* Copyright (C) 2015, Saket Sinha <saket.sinha89@gmail.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <asm/acpi_table.h>
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#include <asm/ioapic.h>
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#include <asm/tables.h>
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void acpi_create_fadt(struct acpi_fadt *fadt, struct acpi_facs *facs,
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void *dsdt)
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{
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acpi_header_t *header = &(fadt->header);
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u16 pmbase;
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pci_dev_t bdf = PCI_BDF(0, 0x1f, 0);
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pci_read_config_word(bdf, 0x40, &pmbase);
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/*
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* TODO(saket.sinha89@gmail.com): wrong value
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* of pmbase by above function. Hard-coding it to
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* correct value. Since no PCI register is
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* programmed Power Management Interface is
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* not working
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*/
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pmbase = 0x0600;
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memset((void *)fadt, 0, sizeof(struct acpi_fadt));
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memcpy(header->signature, "FACP", 4);
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header->length = sizeof(struct acpi_fadt);
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header->revision = 3;
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memcpy(header->oem_id, OEM_ID, 6);
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memcpy(header->oem_table_id, ACPI_TABLE_CREATOR, 8);
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memcpy(header->asl_compiler_id, ASLC, 4);
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header->asl_compiler_revision = 0;
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fadt->firmware_ctrl = (unsigned long) facs;
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fadt->dsdt = (unsigned long) dsdt;
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fadt->model = 0x00;
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fadt->preferred_pm_profile = PM_MOBILE;
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fadt->sci_int = 0x9;
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fadt->smi_cmd = 0;
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fadt->acpi_enable = 0;
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fadt->acpi_disable = 0;
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fadt->s4bios_req = 0x0;
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fadt->pstate_cnt = 0;
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fadt->pm1a_evt_blk = pmbase;
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fadt->pm1b_evt_blk = 0x0;
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fadt->pm1a_cnt_blk = pmbase + 0x4;
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fadt->pm1b_cnt_blk = 0x0;
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fadt->pm2_cnt_blk = pmbase + 0x50;
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fadt->pm_tmr_blk = pmbase + 0x8;
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fadt->gpe0_blk = pmbase + 0x20;
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fadt->gpe1_blk = 0;
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fadt->pm1_evt_len = 4;
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/*
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* Upper word is reserved and
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* Linux complains about 32 bit
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*/
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fadt->pm1_cnt_len = 2;
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fadt->pm2_cnt_len = 1;
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fadt->pm_tmr_len = 4;
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fadt->gpe0_blk_len = 16;
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fadt->gpe1_blk_len = 0;
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fadt->gpe1_base = 0;
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fadt->cst_cnt = 0;
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fadt->p_lvl2_lat = 1;
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fadt->p_lvl3_lat = 0x39;
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fadt->flush_size = 0;
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fadt->flush_stride = 0;
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fadt->duty_offset = 1;
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fadt->duty_width = 3;
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fadt->day_alrm = 0xd;
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fadt->mon_alrm = 0x00;
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fadt->century = 0x32;
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fadt->iapc_boot_arch = 0x00;
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fadt->flags = ACPI_FADT_WBINVD | ACPI_FADT_C1_SUPPORTED |
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ACPI_FADT_SLEEP_BUTTON | ACPI_FADT_S4_RTC_WAKE |
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ACPI_FADT_DOCKING_SUPPORTED | ACPI_FADT_RESET_REGISTER |
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ACPI_FADT_PLATFORM_CLOCK;
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fadt->reset_reg.space_id = ACPI_ADDRESS_SPACE_IO;
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fadt->reset_reg.bit_width = 8;
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fadt->reset_reg.bit_offset = 0;
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fadt->reset_reg.resv = 0;
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fadt->reset_reg.addrl = 0xcf9;
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fadt->reset_reg.addrh = 0;
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fadt->reset_value = 0x06;
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/*
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* Set X_FIRMWARE_CTRL only if FACS is
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* above 4GB. If X_FIRMWARE_CTRL is set,
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* then FIRMWARE_CTRL must be zero
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*/
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fadt->x_firmware_ctl_l = 0;
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fadt->x_firmware_ctl_h = 0;
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fadt->x_dsdt_l = (unsigned long)dsdt;
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fadt->x_dsdt_h = 0;
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fadt->x_pm1a_evt_blk.space_id = 1;
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fadt->x_pm1a_evt_blk.bit_width = 32;
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fadt->x_pm1a_evt_blk.bit_offset = 0;
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fadt->x_pm1a_evt_blk.resv = 0;
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fadt->x_pm1a_evt_blk.addrl = pmbase;
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fadt->x_pm1a_evt_blk.addrh = 0x0;
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fadt->x_pm1b_evt_blk.space_id = 0;
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fadt->x_pm1b_evt_blk.bit_width = 0;
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fadt->x_pm1b_evt_blk.bit_offset = 0;
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fadt->x_pm1b_evt_blk.resv = 0;
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fadt->x_pm1b_evt_blk.addrl = 0x0;
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fadt->x_pm1b_evt_blk.addrh = 0x0;
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fadt->x_pm1a_cnt_blk.space_id = 1;
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/*
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* Upper word is reserved and
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* Linux complains about 32 bit
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*/
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fadt->x_pm1a_cnt_blk.bit_width = 16;
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fadt->x_pm1a_cnt_blk.bit_offset = 0;
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fadt->x_pm1a_cnt_blk.resv = 0;
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fadt->x_pm1a_cnt_blk.addrl = pmbase + 0x4;
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fadt->x_pm1a_cnt_blk.addrh = 0x0;
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fadt->x_pm1b_cnt_blk.space_id = 0;
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fadt->x_pm1b_cnt_blk.bit_width = 0;
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fadt->x_pm1b_cnt_blk.bit_offset = 0;
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fadt->x_pm1b_cnt_blk.resv = 0;
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fadt->x_pm1b_cnt_blk.addrl = 0x0;
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fadt->x_pm1b_cnt_blk.addrh = 0x0;
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fadt->x_pm2_cnt_blk.space_id = 1;
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fadt->x_pm2_cnt_blk.bit_width = 8;
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fadt->x_pm2_cnt_blk.bit_offset = 0;
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fadt->x_pm2_cnt_blk.resv = 0;
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fadt->x_pm2_cnt_blk.addrl = pmbase + 0x50;
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fadt->x_pm2_cnt_blk.addrh = 0x0;
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fadt->x_pm_tmr_blk.space_id = 1;
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fadt->x_pm_tmr_blk.bit_width = 32;
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fadt->x_pm_tmr_blk.bit_offset = 0;
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fadt->x_pm_tmr_blk.resv = 0;
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fadt->x_pm_tmr_blk.addrl = pmbase + 0x8;
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fadt->x_pm_tmr_blk.addrh = 0x0;
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fadt->x_gpe0_blk.space_id = 1;
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fadt->x_gpe0_blk.bit_width = 128;
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fadt->x_gpe0_blk.bit_offset = 0;
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fadt->x_gpe0_blk.resv = 0;
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fadt->x_gpe0_blk.addrl = pmbase + 0x20;
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fadt->x_gpe0_blk.addrh = 0x0;
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fadt->x_gpe1_blk.space_id = 0;
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fadt->x_gpe1_blk.bit_width = 0;
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fadt->x_gpe1_blk.bit_offset = 0;
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fadt->x_gpe1_blk.resv = 0;
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fadt->x_gpe1_blk.addrl = 0x0;
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fadt->x_gpe1_blk.addrh = 0x0;
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header->checksum = table_compute_checksum((void *)fadt, header->length);
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}
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unsigned long acpi_fill_madt(unsigned long current)
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{
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/* create all subtables for processors */
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current = acpi_create_madt_lapics(current);
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/*
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* TODO(saket.sinha89@gmail.com): get these
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* IRQ values from device tree
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*/
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current += acpi_create_madt_ioapic((struct acpi_madt_ioapic *)current,
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2, IO_APIC_ADDR, 0);
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current += acpi_create_madt_irqoverride(
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(struct acpi_madt_irqoverride *)current, 0, 0, 2, 0);
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current += acpi_create_madt_irqoverride(
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(struct acpi_madt_irqoverride *)current, 0, 9, 9, 0xd);
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current += acpi_create_madt_irqoverride(
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(struct acpi_madt_irqoverride *)current, 0, 0xd, 0xd, 0xd);
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acpi_create_madt_lapic_nmi(
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(struct acpi_madt_lapic_nmi *)current, 0, 0, 0);
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return current;
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}
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