/* * This file is part of the coreboot project. * * Copyright (C) 2012 Advanced Micro Devices, Inc. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; version 2 of the License. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. */ /* * ACPI - create the Fixed ACPI Description Tables (FADT) */ #include #include #include #include #include #include "hudson.h" #include "smi.h" #if IS_ENABLED(CONFIG_HUDSON_LEGACY_FREE) #define FADT_BOOT_ARCH ACPI_FADT_LEGACY_FREE #else #define FADT_BOOT_ARCH (ACPI_FADT_LEGACY_DEVICES | ACPI_FADT_8042) #endif #ifndef FADT_PM_PROFILE #define FADT_PM_PROFILE PM_UNSPECIFIED #endif /* * Reference section 5.2.9 Fixed ACPI Description Table (FADT) * in the ACPI 3.0b specification. */ void acpi_create_fadt(acpi_fadt_t * fadt, acpi_facs_t * facs, void *dsdt) { acpi_header_t *header = &(fadt->header); printk(BIOS_DEBUG, "pm_base: 0x%04x\n", HUDSON_ACPI_IO_BASE); /* Prepare the header */ memset((void *)fadt, 0, sizeof(acpi_fadt_t)); memcpy(header->signature, "FACP", 4); header->length = sizeof(acpi_fadt_t); header->revision = ACPI_FADT_REV_ACPI_3_0; memcpy(header->oem_id, OEM_ID, 6); memcpy(header->oem_table_id, ACPI_TABLE_CREATOR, 8); memcpy(header->asl_compiler_id, ASLC, 4); header->asl_compiler_revision = 0; if ((uintptr_t)facs > 0xffffffff) printk(BIOS_DEBUG, "ACPI: FACS lives above 4G\n"); else fadt->firmware_ctrl = (uintptr_t)facs; if ((uintptr_t)dsdt > 0xffffffff) printk(BIOS_DEBUG, "ACPI: DSDT lives above 4G\n"); else fadt->dsdt = (uintptr_t)dsdt; fadt->model = 0; /* reserved, should be 0 ACPI 3.0 */ fadt->preferred_pm_profile = FADT_PM_PROFILE; fadt->sci_int = 9; /* HUDSON - IRQ 09 - ACPI SCI */ if (IS_ENABLED(CONFIG_HAVE_SMI_HANDLER)) { fadt->smi_cmd = ACPI_SMI_CTL_PORT; fadt->acpi_enable = ACPI_SMI_CMD_ENABLE; fadt->acpi_disable = ACPI_SMI_CMD_DISABLE; fadt->s4bios_req = 0; /* Not supported */ fadt->pstate_cnt = 0; /* Not supported */ fadt->cst_cnt = 0; /* Not supported */ outl(0x0, ACPI_PM1_CNT_BLK); /* clear SCI_EN */ } else { fadt->smi_cmd = 0; /* disable system management mode */ fadt->acpi_enable = 0; /* unused if SMI_CMD = 0 */ fadt->acpi_disable = 0; /* unused if SMI_CMD = 0 */ fadt->s4bios_req = 0; /* unused if SMI_CMD = 0 */ fadt->pstate_cnt = 0; /* unused if SMI_CMD = 0 */ fadt->cst_cnt = 0x00; /* unused if SMI_CMD = 0 */ outl(0x1, ACPI_PM1_CNT_BLK); /* set SCI_EN */ } fadt->pm1a_evt_blk = ACPI_PM_EVT_BLK; fadt->pm1b_evt_blk = 0x0000; fadt->pm1a_cnt_blk = ACPI_PM1_CNT_BLK; fadt->pm1b_cnt_blk = 0x0000; fadt->pm2_cnt_blk = 0x0000; fadt->pm_tmr_blk = ACPI_PM_TMR_BLK; fadt->gpe0_blk = ACPI_GPE0_BLK; fadt->gpe1_blk = 0x0000; /* No gpe1 block in hudson */ fadt->pm1_evt_len = 4; /* 32 bits */ fadt->pm1_cnt_len = 2; /* 16 bits */ fadt->pm2_cnt_len = 0; fadt->pm_tmr_len = 4; /* 32 bits */ fadt->gpe0_blk_len = 8; /* 64 bits */ fadt->gpe1_blk_len = 0; fadt->gpe1_base = 0; fadt->p_lvl2_lat = ACPI_FADT_C2_NOT_SUPPORTED; fadt->p_lvl3_lat = ACPI_FADT_C3_NOT_SUPPORTED; fadt->flush_size = 0; /* set to 0 if WBINVD is 1 in flags */ fadt->flush_stride = 0; /* set to 0 if WBINVD is 1 in flags */ fadt->duty_offset = 1; /* CLK_VAL bits 3:1 */ fadt->duty_width = 3; /* CLK_VAL bits 3:1 */ fadt->day_alrm = 0; /* 0x7d these have to be */ fadt->mon_alrm = 0; /* 0x7e added to cmos.layout */ fadt->century = 0; /* 0x7f to make rtc alarm work */ fadt->iapc_boot_arch = FADT_BOOT_ARCH; /* See table 5-10 */ fadt->res2 = 0; /* reserved, MUST be 0 ACPI 3.0 */ fadt->flags = ACPI_FADT_WBINVD | /* See table 5-10 ACPI 3.0a spec */ ACPI_FADT_C1_SUPPORTED | ACPI_FADT_SLEEP_BUTTON | ACPI_FADT_S4_RTC_WAKE | ACPI_FADT_32BIT_TIMER | ACPI_FADT_RESET_REGISTER | ACPI_FADT_PCI_EXPRESS_WAKE | ACPI_FADT_PLATFORM_CLOCK | ACPI_FADT_S4_RTC_VALID | ACPI_FADT_REMOTE_POWER_ON; /* Format is from 5.2.3.1: Generic Address Structure */ /* reset_reg: see section 4.7.3.6 ACPI 3.0a spec */ /* 8 bit write of value 0x06 to 0xCF9 in IO space */ fadt->reset_reg.space_id = ACPI_ADDRESS_SPACE_IO; fadt->reset_reg.bit_width = 8; fadt->reset_reg.bit_offset = 0; fadt->reset_reg.access_size = ACPI_ACCESS_SIZE_BYTE_ACCESS; fadt->reset_reg.addrl = 0xcf9; fadt->reset_reg.addrh = 0x0; fadt->reset_value = 6; fadt->res3 = 0; /* reserved, MUST be 0 ACPI 3.0 */ fadt->res4 = 0; /* reserved, MUST be 0 ACPI 3.0 */ fadt->res5 = 0; /* reserved, MUST be 0 ACPI 3.0 */ fadt->x_firmware_ctl_l = ((uintptr_t)facs) & 0xffffffff; fadt->x_firmware_ctl_h = ((uint64_t)(uintptr_t)facs) >> 32; fadt->x_dsdt_l = ((uintptr_t)dsdt) & 0xffffffff; fadt->x_dsdt_h = ((uint64_t)(uintptr_t)dsdt) >> 32; fadt->x_pm1a_evt_blk.space_id = ACPI_ADDRESS_SPACE_IO; fadt->x_pm1a_evt_blk.bit_width = 32; fadt->x_pm1a_evt_blk.bit_offset = 0; fadt->x_pm1a_evt_blk.access_size = ACPI_ACCESS_SIZE_WORD_ACCESS; fadt->x_pm1a_evt_blk.addrl = ACPI_PM_EVT_BLK; fadt->x_pm1a_evt_blk.addrh = 0x0; fadt->x_pm1b_evt_blk.space_id = ACPI_ADDRESS_SPACE_IO; fadt->x_pm1b_evt_blk.bit_width = 0; fadt->x_pm1b_evt_blk.bit_offset = 0; fadt->x_pm1b_evt_blk.access_size = 0; fadt->x_pm1b_evt_blk.addrl = 0x0; fadt->x_pm1b_evt_blk.addrh = 0x0; fadt->x_pm1a_cnt_blk.space_id = ACPI_ADDRESS_SPACE_IO; fadt->x_pm1a_cnt_blk.bit_width = 16; fadt->x_pm1a_cnt_blk.bit_offset = 0; fadt->x_pm1a_cnt_blk.access_size = 0; fadt->x_pm1a_cnt_blk.addrl = ACPI_PM1_CNT_BLK; fadt->x_pm1a_cnt_blk.addrh = 0x0; fadt->x_pm1b_cnt_blk.space_id = ACPI_ADDRESS_SPACE_IO; fadt->x_pm1b_cnt_blk.bit_width = 0; fadt->x_pm1b_cnt_blk.bit_offset = 0; fadt->x_pm1b_cnt_blk.access_size = 0; fadt->x_pm1b_cnt_blk.addrl = 0x0; fadt->x_pm1b_cnt_blk.addrh = 0x0; /* * Note: Under this current AMD C state implementation, this is no longer * used and should not be reported to OS. */ fadt->x_pm2_cnt_blk.space_id = ACPI_ADDRESS_SPACE_IO; fadt->x_pm2_cnt_blk.bit_width = 0; fadt->x_pm2_cnt_blk.bit_offset = 0; fadt->x_pm2_cnt_blk.access_size = ACPI_ACCESS_SIZE_BYTE_ACCESS; fadt->x_pm2_cnt_blk.addrl = 0; fadt->x_pm2_cnt_blk.addrh = 0x0; fadt->x_pm_tmr_blk.space_id = ACPI_ADDRESS_SPACE_IO; fadt->x_pm_tmr_blk.bit_width = 32; fadt->x_pm_tmr_blk.bit_offset = 0; fadt->x_pm_tmr_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS; fadt->x_pm_tmr_blk.addrl = ACPI_PM_TMR_BLK; fadt->x_pm_tmr_blk.addrh = 0x0; fadt->x_gpe0_blk.space_id = ACPI_ADDRESS_SPACE_IO; fadt->x_gpe0_blk.bit_width = 64; /* EventStatus + Event Enable */ fadt->x_gpe0_blk.bit_offset = 0; fadt->x_gpe0_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS; fadt->x_gpe0_blk.addrl = ACPI_GPE0_BLK; fadt->x_gpe0_blk.addrh = 0x0; fadt->x_gpe1_blk.space_id = ACPI_ADDRESS_SPACE_IO; fadt->x_gpe1_blk.bit_width = 0; fadt->x_gpe1_blk.bit_offset = 0; fadt->x_gpe1_blk.access_size = 0; fadt->x_gpe1_blk.addrl = 0; fadt->x_gpe1_blk.addrh = 0x0; header->checksum = acpi_checksum((void *)fadt, sizeof(acpi_fadt_t)); }