8 files changed, 10 insertions, 640 deletions

diff --git a/src/mainboard/lenovo/t520/devicetree.cb b/src/mainboard/lenovo/t520/devicetree.cb
index c32e237095..d347e8246d 100644
--- a/src/mainboard/lenovo/t520/devicetree.cb
+++ b/src/mainboard/lenovo/t520/devicetree.cb
@@ -73,6 +73,9 @@ chip northbridge/intel/sandybridge
 			# Enable zero-based linear PCIe root port functions
 			register "pcie_port_coalesce" = "1"
 
+			register "c2_latency" = "101"  # c2 not supported
+			register "p_cnt_throttling_supported" = "1"
+
 			device pci 16.0 on end # Management Engine Interface 1
 			device pci 16.1 off end
 			device pci 16.2 off end
diff --git a/src/mainboard/lenovo/t520/fadt.c b/src/mainboard/lenovo/t520/fadt.c
deleted file mode 100644
index 27e6303d7e..0000000000
--- a/src/mainboard/lenovo/t520/fadt.c
+++ /dev/null
@@ -1,160 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2007-2009 coresystems GmbH
- * Copyright (C) 2014 Vladimir Serbinenko
- *
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <string.h>
-#include <device/pci.h>
-#include <arch/acpi.h>
-#include <cpu/x86/smm.h>
-
-void acpi_create_fadt(acpi_fadt_t * fadt, acpi_facs_t * facs, void *dsdt)
-{
-	acpi_header_t *header = &(fadt->header);
-	u16 pmbase = pci_read_config16(dev_find_slot(0, PCI_DEVFN(0x1f,0)),
-								0x40) & 0xfffe;
-
-	memset((void *) fadt, 0, sizeof(acpi_fadt_t));
-	memcpy(header->signature, "FACP", 4);
-	header->length = sizeof(acpi_fadt_t);
-	header->revision = 3;
-	memcpy(header->oem_id, OEM_ID, 6);
-	memcpy(header->oem_table_id, ACPI_TABLE_CREATOR, 8);
-	memcpy(header->asl_compiler_id, "CORE", 4);
-	header->asl_compiler_revision = 1;
-
-	fadt->firmware_ctrl = (unsigned long) facs;
-	fadt->dsdt = (unsigned long) dsdt;
-	fadt->model = 1;
-	fadt->preferred_pm_profile = PM_MOBILE;
-
-	fadt->sci_int = 0x9;
-	fadt->smi_cmd = APM_CNT;
-	fadt->acpi_enable = APM_CNT_ACPI_ENABLE;
-	fadt->acpi_disable = APM_CNT_ACPI_DISABLE;
-	fadt->s4bios_req = 0x0;
-	fadt->pstate_cnt = 0;
-
-	fadt->pm1a_evt_blk = pmbase;
-	fadt->pm1b_evt_blk = 0x0;
-	fadt->pm1a_cnt_blk = pmbase + 0x4;
-	fadt->pm1b_cnt_blk = 0x0;
-	fadt->pm2_cnt_blk = pmbase + 0x50;
-	fadt->pm_tmr_blk = pmbase + 0x8;
-	fadt->gpe0_blk = pmbase + 0x20;
-	fadt->gpe1_blk = 0;
-
-	fadt->pm1_evt_len = 4;
-	fadt->pm1_cnt_len = 2;
-	fadt->pm2_cnt_len = 1;
-	fadt->pm_tmr_len = 4;
-	fadt->gpe0_blk_len = 16;
-	fadt->gpe1_blk_len = 0;
-	fadt->gpe1_base = 0;
-	fadt->cst_cnt = 0;
-	fadt->p_lvl2_lat = 101;  /* c2 not supported */
-	fadt->p_lvl3_lat = 87;
-	fadt->flush_size = 1024;
-	fadt->flush_stride = 16;
-	fadt->duty_offset = 1;
-	fadt->duty_width = 3;
-	fadt->day_alrm = 0xd;
-	fadt->mon_alrm = 0x00;
-	fadt->century = 0x00;
-	fadt->iapc_boot_arch = ACPI_FADT_LEGACY_DEVICES | ACPI_FADT_8042;
-
-	fadt->flags = ACPI_FADT_WBINVD |
-			ACPI_FADT_C1_SUPPORTED |
-			ACPI_FADT_SLEEP_BUTTON |
-			ACPI_FADT_RESET_REGISTER |
-			ACPI_FADT_SEALED_CASE |
-			ACPI_FADT_S4_RTC_WAKE |
-			ACPI_FADT_PLATFORM_CLOCK;
-
-	fadt->reset_reg.space_id = 1;
-	fadt->reset_reg.bit_width = 8;
-	fadt->reset_reg.bit_offset = 0;
-	fadt->reset_reg.resv = 0;
-	fadt->reset_reg.addrl = 0xcf9;
-	fadt->reset_reg.addrh = 0;
-
-	fadt->reset_value = 6;
-	fadt->x_firmware_ctl_l = (unsigned long)facs;
-	fadt->x_firmware_ctl_h = 0;
-	fadt->x_dsdt_l = (unsigned long)dsdt;
-	fadt->x_dsdt_h = 0;
-
-	fadt->x_pm1a_evt_blk.space_id = 1;
-	fadt->x_pm1a_evt_blk.bit_width = 32;
-	fadt->x_pm1a_evt_blk.bit_offset = 0;
-	fadt->x_pm1a_evt_blk.resv = 0;
-	fadt->x_pm1a_evt_blk.addrl = pmbase;
-	fadt->x_pm1a_evt_blk.addrh = 0x0;
-
-	fadt->x_pm1b_evt_blk.space_id = 1;
-	fadt->x_pm1b_evt_blk.bit_width = 0;
-	fadt->x_pm1b_evt_blk.bit_offset = 0;
-	fadt->x_pm1b_evt_blk.resv = 0;
-	fadt->x_pm1b_evt_blk.addrl = 0x0;
-	fadt->x_pm1b_evt_blk.addrh = 0x0;
-
-	fadt->x_pm1a_cnt_blk.space_id = 1;
-	fadt->x_pm1a_cnt_blk.bit_width = 16;
-	fadt->x_pm1a_cnt_blk.bit_offset = 0;
-	fadt->x_pm1a_cnt_blk.resv = 0;
-	fadt->x_pm1a_cnt_blk.addrl = pmbase + 0x4;
-	fadt->x_pm1a_cnt_blk.addrh = 0x0;
-
-	fadt->x_pm1b_cnt_blk.space_id = 1;
-	fadt->x_pm1b_cnt_blk.bit_width = 0;
-	fadt->x_pm1b_cnt_blk.bit_offset = 0;
-	fadt->x_pm1b_cnt_blk.resv = 0;
-	fadt->x_pm1b_cnt_blk.addrl = 0x0;
-	fadt->x_pm1b_cnt_blk.addrh = 0x0;
-
-	fadt->x_pm2_cnt_blk.space_id = 1;
-	fadt->x_pm2_cnt_blk.bit_width = 8;
-	fadt->x_pm2_cnt_blk.bit_offset = 0;
-	fadt->x_pm2_cnt_blk.resv = 0;
-	fadt->x_pm2_cnt_blk.addrl = pmbase + 0x50;
-	fadt->x_pm2_cnt_blk.addrh = 0x0;
-
-	fadt->x_pm_tmr_blk.space_id = 1;
-	fadt->x_pm_tmr_blk.bit_width = 32;
-	fadt->x_pm_tmr_blk.bit_offset = 0;
-	fadt->x_pm_tmr_blk.resv = 0;
-	fadt->x_pm_tmr_blk.addrl = pmbase + 0x8;
-	fadt->x_pm_tmr_blk.addrh = 0x0;
-
-	fadt->x_gpe0_blk.space_id = 1;
-	fadt->x_gpe0_blk.bit_width = 128;
-	fadt->x_gpe0_blk.bit_offset = 0;
-	fadt->x_gpe0_blk.resv = 0;
-	fadt->x_gpe0_blk.addrl = pmbase + 0x20;
-	fadt->x_gpe0_blk.addrh = 0x0;
-
-	fadt->x_gpe1_blk.space_id = 1;
-	fadt->x_gpe1_blk.bit_width = 0;
-	fadt->x_gpe1_blk.bit_offset = 0;
-	fadt->x_gpe1_blk.resv = 0;
-	fadt->x_gpe1_blk.addrl = 0x0;
-	fadt->x_gpe1_blk.addrh = 0x0;
-
-	header->checksum =
-	    acpi_checksum((void *) fadt, header->length);
-}
diff --git a/src/mainboard/lenovo/t530/devicetree.cb b/src/mainboard/lenovo/t530/devicetree.cb
index b44623b804..397bb9f5ed 100644
--- a/src/mainboard/lenovo/t530/devicetree.cb
+++ b/src/mainboard/lenovo/t530/devicetree.cb
@@ -72,6 +72,8 @@ chip northbridge/intel/sandybridge
 
 			# Enable zero-based linear PCIe root port functions
 			register "pcie_port_coalesce" = "1"
+			register "c2_latency" = "101"  # c2 not supported
+			register "p_cnt_throttling_supported" = "1"
 
 			device pci 14.0 on end # USB 3.0 Controller
 			device pci 16.0 on end # Management Engine Interface 1
diff --git a/src/mainboard/lenovo/t530/fadt.c b/src/mainboard/lenovo/t530/fadt.c
deleted file mode 100644
index 27e6303d7e..0000000000
--- a/src/mainboard/lenovo/t530/fadt.c
+++ /dev/null
@@ -1,160 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2007-2009 coresystems GmbH
- * Copyright (C) 2014 Vladimir Serbinenko
- *
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <string.h>
-#include <device/pci.h>
-#include <arch/acpi.h>
-#include <cpu/x86/smm.h>
-
-void acpi_create_fadt(acpi_fadt_t * fadt, acpi_facs_t * facs, void *dsdt)
-{
-	acpi_header_t *header = &(fadt->header);
-	u16 pmbase = pci_read_config16(dev_find_slot(0, PCI_DEVFN(0x1f,0)),
-								0x40) & 0xfffe;
-
-	memset((void *) fadt, 0, sizeof(acpi_fadt_t));
-	memcpy(header->signature, "FACP", 4);
-	header->length = sizeof(acpi_fadt_t);
-	header->revision = 3;
-	memcpy(header->oem_id, OEM_ID, 6);
-	memcpy(header->oem_table_id, ACPI_TABLE_CREATOR, 8);
-	memcpy(header->asl_compiler_id, "CORE", 4);
-	header->asl_compiler_revision = 1;
-
-	fadt->firmware_ctrl = (unsigned long) facs;
-	fadt->dsdt = (unsigned long) dsdt;
-	fadt->model = 1;
-	fadt->preferred_pm_profile = PM_MOBILE;
-
-	fadt->sci_int = 0x9;
-	fadt->smi_cmd = APM_CNT;
-	fadt->acpi_enable = APM_CNT_ACPI_ENABLE;
-	fadt->acpi_disable = APM_CNT_ACPI_DISABLE;
-	fadt->s4bios_req = 0x0;
-	fadt->pstate_cnt = 0;
-
-	fadt->pm1a_evt_blk = pmbase;
-	fadt->pm1b_evt_blk = 0x0;
-	fadt->pm1a_cnt_blk = pmbase + 0x4;
-	fadt->pm1b_cnt_blk = 0x0;
-	fadt->pm2_cnt_blk = pmbase + 0x50;
-	fadt->pm_tmr_blk = pmbase + 0x8;
-	fadt->gpe0_blk = pmbase + 0x20;
-	fadt->gpe1_blk = 0;
-
-	fadt->pm1_evt_len = 4;
-	fadt->pm1_cnt_len = 2;
-	fadt->pm2_cnt_len = 1;
-	fadt->pm_tmr_len = 4;
-	fadt->gpe0_blk_len = 16;
-	fadt->gpe1_blk_len = 0;
-	fadt->gpe1_base = 0;
-	fadt->cst_cnt = 0;
-	fadt->p_lvl2_lat = 101;  /* c2 not supported */
-	fadt->p_lvl3_lat = 87;
-	fadt->flush_size = 1024;
-	fadt->flush_stride = 16;
-	fadt->duty_offset = 1;
-	fadt->duty_width = 3;
-	fadt->day_alrm = 0xd;
-	fadt->mon_alrm = 0x00;
-	fadt->century = 0x00;
-	fadt->iapc_boot_arch = ACPI_FADT_LEGACY_DEVICES | ACPI_FADT_8042;
-
-	fadt->flags = ACPI_FADT_WBINVD |
-			ACPI_FADT_C1_SUPPORTED |
-			ACPI_FADT_SLEEP_BUTTON |
-			ACPI_FADT_RESET_REGISTER |
-			ACPI_FADT_SEALED_CASE |
-			ACPI_FADT_S4_RTC_WAKE |
-			ACPI_FADT_PLATFORM_CLOCK;
-
-	fadt->reset_reg.space_id = 1;
-	fadt->reset_reg.bit_width = 8;
-	fadt->reset_reg.bit_offset = 0;
-	fadt->reset_reg.resv = 0;
-	fadt->reset_reg.addrl = 0xcf9;
-	fadt->reset_reg.addrh = 0;
-
-	fadt->reset_value = 6;
-	fadt->x_firmware_ctl_l = (unsigned long)facs;
-	fadt->x_firmware_ctl_h = 0;
-	fadt->x_dsdt_l = (unsigned long)dsdt;
-	fadt->x_dsdt_h = 0;
-
-	fadt->x_pm1a_evt_blk.space_id = 1;
-	fadt->x_pm1a_evt_blk.bit_width = 32;
-	fadt->x_pm1a_evt_blk.bit_offset = 0;
-	fadt->x_pm1a_evt_blk.resv = 0;
-	fadt->x_pm1a_evt_blk.addrl = pmbase;
-	fadt->x_pm1a_evt_blk.addrh = 0x0;
-
-	fadt->x_pm1b_evt_blk.space_id = 1;
-	fadt->x_pm1b_evt_blk.bit_width = 0;
-	fadt->x_pm1b_evt_blk.bit_offset = 0;
-	fadt->x_pm1b_evt_blk.resv = 0;
-	fadt->x_pm1b_evt_blk.addrl = 0x0;
-	fadt->x_pm1b_evt_blk.addrh = 0x0;
-
-	fadt->x_pm1a_cnt_blk.space_id = 1;
-	fadt->x_pm1a_cnt_blk.bit_width = 16;
-	fadt->x_pm1a_cnt_blk.bit_offset = 0;
-	fadt->x_pm1a_cnt_blk.resv = 0;
-	fadt->x_pm1a_cnt_blk.addrl = pmbase + 0x4;
-	fadt->x_pm1a_cnt_blk.addrh = 0x0;
-
-	fadt->x_pm1b_cnt_blk.space_id = 1;
-	fadt->x_pm1b_cnt_blk.bit_width = 0;
-	fadt->x_pm1b_cnt_blk.bit_offset = 0;
-	fadt->x_pm1b_cnt_blk.resv = 0;
-	fadt->x_pm1b_cnt_blk.addrl = 0x0;
-	fadt->x_pm1b_cnt_blk.addrh = 0x0;
-
-	fadt->x_pm2_cnt_blk.space_id = 1;
-	fadt->x_pm2_cnt_blk.bit_width = 8;
-	fadt->x_pm2_cnt_blk.bit_offset = 0;
-	fadt->x_pm2_cnt_blk.resv = 0;
-	fadt->x_pm2_cnt_blk.addrl = pmbase + 0x50;
-	fadt->x_pm2_cnt_blk.addrh = 0x0;
-
-	fadt->x_pm_tmr_blk.space_id = 1;
-	fadt->x_pm_tmr_blk.bit_width = 32;
-	fadt->x_pm_tmr_blk.bit_offset = 0;
-	fadt->x_pm_tmr_blk.resv = 0;
-	fadt->x_pm_tmr_blk.addrl = pmbase + 0x8;
-	fadt->x_pm_tmr_blk.addrh = 0x0;
-
-	fadt->x_gpe0_blk.space_id = 1;
-	fadt->x_gpe0_blk.bit_width = 128;
-	fadt->x_gpe0_blk.bit_offset = 0;
-	fadt->x_gpe0_blk.resv = 0;
-	fadt->x_gpe0_blk.addrl = pmbase + 0x20;
-	fadt->x_gpe0_blk.addrh = 0x0;
-
-	fadt->x_gpe1_blk.space_id = 1;
-	fadt->x_gpe1_blk.bit_width = 0;
-	fadt->x_gpe1_blk.bit_offset = 0;
-	fadt->x_gpe1_blk.resv = 0;
-	fadt->x_gpe1_blk.addrl = 0x0;
-	fadt->x_gpe1_blk.addrh = 0x0;
-
-	header->checksum =
-	    acpi_checksum((void *) fadt, header->length);
-}
diff --git a/src/mainboard/lenovo/x220/devicetree.cb b/src/mainboard/lenovo/x220/devicetree.cb
index 8f4deaa2a4..3edbb87a08 100644
--- a/src/mainboard/lenovo/x220/devicetree.cb
+++ b/src/mainboard/lenovo/x220/devicetree.cb
@@ -77,6 +77,9 @@ chip northbridge/intel/sandybridge
 			# Enable zero-based linear PCIe root port functions
 			register "pcie_port_coalesce" = "1"
 
+			register "c2_latency" = "101"  # c2 not supported
+			register "p_cnt_throttling_supported" = "1"
+
 			device pci 16.0 on
 				subsystemid 0x17aa 0x21db
 			end # Management Engine Interface 1
diff --git a/src/mainboard/lenovo/x220/fadt.c b/src/mainboard/lenovo/x220/fadt.c
deleted file mode 100644
index 27e6303d7e..0000000000
--- a/src/mainboard/lenovo/x220/fadt.c
+++ /dev/null
@@ -1,160 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2007-2009 coresystems GmbH
- * Copyright (C) 2014 Vladimir Serbinenko
- *
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <string.h>
-#include <device/pci.h>
-#include <arch/acpi.h>
-#include <cpu/x86/smm.h>
-
-void acpi_create_fadt(acpi_fadt_t * fadt, acpi_facs_t * facs, void *dsdt)
-{
-	acpi_header_t *header = &(fadt->header);
-	u16 pmbase = pci_read_config16(dev_find_slot(0, PCI_DEVFN(0x1f,0)),
-								0x40) & 0xfffe;
-
-	memset((void *) fadt, 0, sizeof(acpi_fadt_t));
-	memcpy(header->signature, "FACP", 4);
-	header->length = sizeof(acpi_fadt_t);
-	header->revision = 3;
-	memcpy(header->oem_id, OEM_ID, 6);
-	memcpy(header->oem_table_id, ACPI_TABLE_CREATOR, 8);
-	memcpy(header->asl_compiler_id, "CORE", 4);
-	header->asl_compiler_revision = 1;
-
-	fadt->firmware_ctrl = (unsigned long) facs;
-	fadt->dsdt = (unsigned long) dsdt;
-	fadt->model = 1;
-	fadt->preferred_pm_profile = PM_MOBILE;
-
-	fadt->sci_int = 0x9;
-	fadt->smi_cmd = APM_CNT;
-	fadt->acpi_enable = APM_CNT_ACPI_ENABLE;
-	fadt->acpi_disable = APM_CNT_ACPI_DISABLE;
-	fadt->s4bios_req = 0x0;
-	fadt->pstate_cnt = 0;
-
-	fadt->pm1a_evt_blk = pmbase;
-	fadt->pm1b_evt_blk = 0x0;
-	fadt->pm1a_cnt_blk = pmbase + 0x4;
-	fadt->pm1b_cnt_blk = 0x0;
-	fadt->pm2_cnt_blk = pmbase + 0x50;
-	fadt->pm_tmr_blk = pmbase + 0x8;
-	fadt->gpe0_blk = pmbase + 0x20;
-	fadt->gpe1_blk = 0;
-
-	fadt->pm1_evt_len = 4;
-	fadt->pm1_cnt_len = 2;
-	fadt->pm2_cnt_len = 1;
-	fadt->pm_tmr_len = 4;
-	fadt->gpe0_blk_len = 16;
-	fadt->gpe1_blk_len = 0;
-	fadt->gpe1_base = 0;
-	fadt->cst_cnt = 0;
-	fadt->p_lvl2_lat = 101;  /* c2 not supported */
-	fadt->p_lvl3_lat = 87;
-	fadt->flush_size = 1024;
-	fadt->flush_stride = 16;
-	fadt->duty_offset = 1;
-	fadt->duty_width = 3;
-	fadt->day_alrm = 0xd;
-	fadt->mon_alrm = 0x00;
-	fadt->century = 0x00;
-	fadt->iapc_boot_arch = ACPI_FADT_LEGACY_DEVICES | ACPI_FADT_8042;
-
-	fadt->flags = ACPI_FADT_WBINVD |
-			ACPI_FADT_C1_SUPPORTED |
-			ACPI_FADT_SLEEP_BUTTON |
-			ACPI_FADT_RESET_REGISTER |
-			ACPI_FADT_SEALED_CASE |
-			ACPI_FADT_S4_RTC_WAKE |
-			ACPI_FADT_PLATFORM_CLOCK;
-
-	fadt->reset_reg.space_id = 1;
-	fadt->reset_reg.bit_width = 8;
-	fadt->reset_reg.bit_offset = 0;
-	fadt->reset_reg.resv = 0;
-	fadt->reset_reg.addrl = 0xcf9;
-	fadt->reset_reg.addrh = 0;
-
-	fadt->reset_value = 6;
-	fadt->x_firmware_ctl_l = (unsigned long)facs;
-	fadt->x_firmware_ctl_h = 0;
-	fadt->x_dsdt_l = (unsigned long)dsdt;
-	fadt->x_dsdt_h = 0;
-
-	fadt->x_pm1a_evt_blk.space_id = 1;
-	fadt->x_pm1a_evt_blk.bit_width = 32;
-	fadt->x_pm1a_evt_blk.bit_offset = 0;
-	fadt->x_pm1a_evt_blk.resv = 0;
-	fadt->x_pm1a_evt_blk.addrl = pmbase;
-	fadt->x_pm1a_evt_blk.addrh = 0x0;
-
-	fadt->x_pm1b_evt_blk.space_id = 1;
-	fadt->x_pm1b_evt_blk.bit_width = 0;
-	fadt->x_pm1b_evt_blk.bit_offset = 0;
-	fadt->x_pm1b_evt_blk.resv = 0;
-	fadt->x_pm1b_evt_blk.addrl = 0x0;
-	fadt->x_pm1b_evt_blk.addrh = 0x0;
-
-	fadt->x_pm1a_cnt_blk.space_id = 1;
-	fadt->x_pm1a_cnt_blk.bit_width = 16;
-	fadt->x_pm1a_cnt_blk.bit_offset = 0;
-	fadt->x_pm1a_cnt_blk.resv = 0;
-	fadt->x_pm1a_cnt_blk.addrl = pmbase + 0x4;
-	fadt->x_pm1a_cnt_blk.addrh = 0x0;
-
-	fadt->x_pm1b_cnt_blk.space_id = 1;
-	fadt->x_pm1b_cnt_blk.bit_width = 0;
-	fadt->x_pm1b_cnt_blk.bit_offset = 0;
-	fadt->x_pm1b_cnt_blk.resv = 0;
-	fadt->x_pm1b_cnt_blk.addrl = 0x0;
-	fadt->x_pm1b_cnt_blk.addrh = 0x0;
-
-	fadt->x_pm2_cnt_blk.space_id = 1;
-	fadt->x_pm2_cnt_blk.bit_width = 8;
-	fadt->x_pm2_cnt_blk.bit_offset = 0;
-	fadt->x_pm2_cnt_blk.resv = 0;
-	fadt->x_pm2_cnt_blk.addrl = pmbase + 0x50;
-	fadt->x_pm2_cnt_blk.addrh = 0x0;
-
-	fadt->x_pm_tmr_blk.space_id = 1;
-	fadt->x_pm_tmr_blk.bit_width = 32;
-	fadt->x_pm_tmr_blk.bit_offset = 0;
-	fadt->x_pm_tmr_blk.resv = 0;
-	fadt->x_pm_tmr_blk.addrl = pmbase + 0x8;
-	fadt->x_pm_tmr_blk.addrh = 0x0;
-
-	fadt->x_gpe0_blk.space_id = 1;
-	fadt->x_gpe0_blk.bit_width = 128;
-	fadt->x_gpe0_blk.bit_offset = 0;
-	fadt->x_gpe0_blk.resv = 0;
-	fadt->x_gpe0_blk.addrl = pmbase + 0x20;
-	fadt->x_gpe0_blk.addrh = 0x0;
-
-	fadt->x_gpe1_blk.space_id = 1;
-	fadt->x_gpe1_blk.bit_width = 0;
-	fadt->x_gpe1_blk.bit_offset = 0;
-	fadt->x_gpe1_blk.resv = 0;
-	fadt->x_gpe1_blk.addrl = 0x0;
-	fadt->x_gpe1_blk.addrh = 0x0;
-
-	header->checksum =
-	    acpi_checksum((void *) fadt, header->length);
-}
diff --git a/src/mainboard/lenovo/x230/devicetree.cb b/src/mainboard/lenovo/x230/devicetree.cb
index ae5e6d1f7b..256586bf40 100644
--- a/src/mainboard/lenovo/x230/devicetree.cb
+++ b/src/mainboard/lenovo/x230/devicetree.cb
@@ -76,6 +76,8 @@ chip northbridge/intel/sandybridge
 
 			# Enable zero-based linear PCIe root port functions
 			register "pcie_port_coalesce" = "1"
+			register "c2_latency" = "101"  # c2 not supported
+			register "p_cnt_throttling_supported" = "1"
 
 			device pci 14.0 on
 				subsystemid 0x17aa 0x21fa
diff --git a/src/mainboard/lenovo/x230/fadt.c b/src/mainboard/lenovo/x230/fadt.c
deleted file mode 100644
index 27e6303d7e..0000000000
--- a/src/mainboard/lenovo/x230/fadt.c
+++ /dev/null
@@ -1,160 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2007-2009 coresystems GmbH
- * Copyright (C) 2014 Vladimir Serbinenko
- *
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <string.h>
-#include <device/pci.h>
-#include <arch/acpi.h>
-#include <cpu/x86/smm.h>
-
-void acpi_create_fadt(acpi_fadt_t * fadt, acpi_facs_t * facs, void *dsdt)
-{
-	acpi_header_t *header = &(fadt->header);
-	u16 pmbase = pci_read_config16(dev_find_slot(0, PCI_DEVFN(0x1f,0)),
-								0x40) & 0xfffe;
-
-	memset((void *) fadt, 0, sizeof(acpi_fadt_t));
-	memcpy(header->signature, "FACP", 4);
-	header->length = sizeof(acpi_fadt_t);
-	header->revision = 3;
-	memcpy(header->oem_id, OEM_ID, 6);
-	memcpy(header->oem_table_id, ACPI_TABLE_CREATOR, 8);
-	memcpy(header->asl_compiler_id, "CORE", 4);
-	header->asl_compiler_revision = 1;
-
-	fadt->firmware_ctrl = (unsigned long) facs;
-	fadt->dsdt = (unsigned long) dsdt;
-	fadt->model = 1;
-	fadt->preferred_pm_profile = PM_MOBILE;
-
-	fadt->sci_int = 0x9;
-	fadt->smi_cmd = APM_CNT;
-	fadt->acpi_enable = APM_CNT_ACPI_ENABLE;
-	fadt->acpi_disable = APM_CNT_ACPI_DISABLE;
-	fadt->s4bios_req = 0x0;
-	fadt->pstate_cnt = 0;
-
-	fadt->pm1a_evt_blk = pmbase;
-	fadt->pm1b_evt_blk = 0x0;
-	fadt->pm1a_cnt_blk = pmbase + 0x4;
-	fadt->pm1b_cnt_blk = 0x0;
-	fadt->pm2_cnt_blk = pmbase + 0x50;
-	fadt->pm_tmr_blk = pmbase + 0x8;
-	fadt->gpe0_blk = pmbase + 0x20;
-	fadt->gpe1_blk = 0;
-
-	fadt->pm1_evt_len = 4;
-	fadt->pm1_cnt_len = 2;
-	fadt->pm2_cnt_len = 1;
-	fadt->pm_tmr_len = 4;
-	fadt->gpe0_blk_len = 16;
-	fadt->gpe1_blk_len = 0;
-	fadt->gpe1_base = 0;
-	fadt->cst_cnt = 0;
-	fadt->p_lvl2_lat = 101;  /* c2 not supported */
-	fadt->p_lvl3_lat = 87;
-	fadt->flush_size = 1024;
-	fadt->flush_stride = 16;
-	fadt->duty_offset = 1;
-	fadt->duty_width = 3;
-	fadt->day_alrm = 0xd;
-	fadt->mon_alrm = 0x00;
-	fadt->century = 0x00;
-	fadt->iapc_boot_arch = ACPI_FADT_LEGACY_DEVICES | ACPI_FADT_8042;
-
-	fadt->flags = ACPI_FADT_WBINVD |
-			ACPI_FADT_C1_SUPPORTED |
-			ACPI_FADT_SLEEP_BUTTON |
-			ACPI_FADT_RESET_REGISTER |
-			ACPI_FADT_SEALED_CASE |
-			ACPI_FADT_S4_RTC_WAKE |
-			ACPI_FADT_PLATFORM_CLOCK;
-
-	fadt->reset_reg.space_id = 1;
-	fadt->reset_reg.bit_width = 8;
-	fadt->reset_reg.bit_offset = 0;
-	fadt->reset_reg.resv = 0;
-	fadt->reset_reg.addrl = 0xcf9;
-	fadt->reset_reg.addrh = 0;
-
-	fadt->reset_value = 6;
-	fadt->x_firmware_ctl_l = (unsigned long)facs;
-	fadt->x_firmware_ctl_h = 0;
-	fadt->x_dsdt_l = (unsigned long)dsdt;
-	fadt->x_dsdt_h = 0;
-
-	fadt->x_pm1a_evt_blk.space_id = 1;
-	fadt->x_pm1a_evt_blk.bit_width = 32;
-	fadt->x_pm1a_evt_blk.bit_offset = 0;
-	fadt->x_pm1a_evt_blk.resv = 0;
-	fadt->x_pm1a_evt_blk.addrl = pmbase;
-	fadt->x_pm1a_evt_blk.addrh = 0x0;
-
-	fadt->x_pm1b_evt_blk.space_id = 1;
-	fadt->x_pm1b_evt_blk.bit_width = 0;
-	fadt->x_pm1b_evt_blk.bit_offset = 0;
-	fadt->x_pm1b_evt_blk.resv = 0;
-	fadt->x_pm1b_evt_blk.addrl = 0x0;
-	fadt->x_pm1b_evt_blk.addrh = 0x0;
-
-	fadt->x_pm1a_cnt_blk.space_id = 1;
-	fadt->x_pm1a_cnt_blk.bit_width = 16;
-	fadt->x_pm1a_cnt_blk.bit_offset = 0;
-	fadt->x_pm1a_cnt_blk.resv = 0;
-	fadt->x_pm1a_cnt_blk.addrl = pmbase + 0x4;
-	fadt->x_pm1a_cnt_blk.addrh = 0x0;
-
-	fadt->x_pm1b_cnt_blk.space_id = 1;
-	fadt->x_pm1b_cnt_blk.bit_width = 0;
-	fadt->x_pm1b_cnt_blk.bit_offset = 0;
-	fadt->x_pm1b_cnt_blk.resv = 0;
-	fadt->x_pm1b_cnt_blk.addrl = 0x0;
-	fadt->x_pm1b_cnt_blk.addrh = 0x0;
-
-	fadt->x_pm2_cnt_blk.space_id = 1;
-	fadt->x_pm2_cnt_blk.bit_width = 8;
-	fadt->x_pm2_cnt_blk.bit_offset = 0;
-	fadt->x_pm2_cnt_blk.resv = 0;
-	fadt->x_pm2_cnt_blk.addrl = pmbase + 0x50;
-	fadt->x_pm2_cnt_blk.addrh = 0x0;
-
-	fadt->x_pm_tmr_blk.space_id = 1;
-	fadt->x_pm_tmr_blk.bit_width = 32;
-	fadt->x_pm_tmr_blk.bit_offset = 0;
-	fadt->x_pm_tmr_blk.resv = 0;
-	fadt->x_pm_tmr_blk.addrl = pmbase + 0x8;
-	fadt->x_pm_tmr_blk.addrh = 0x0;
-
-	fadt->x_gpe0_blk.space_id = 1;
-	fadt->x_gpe0_blk.bit_width = 128;
-	fadt->x_gpe0_blk.bit_offset = 0;
-	fadt->x_gpe0_blk.resv = 0;
-	fadt->x_gpe0_blk.addrl = pmbase + 0x20;
-	fadt->x_gpe0_blk.addrh = 0x0;
-
-	fadt->x_gpe1_blk.space_id = 1;
-	fadt->x_gpe1_blk.bit_width = 0;
-	fadt->x_gpe1_blk.bit_offset = 0;
-	fadt->x_gpe1_blk.resv = 0;
-	fadt->x_gpe1_blk.addrl = 0x0;
-	fadt->x_gpe1_blk.addrh = 0x0;
-
-	header->checksum =
-	    acpi_checksum((void *) fadt, header->length);
-}