mainboard/lenovo/x230: Add ThinkPad x230s as a variant

The code is based on autoport and that for X230. Major differences are:
    - Only one DDR3 slot
    - HM77 PCH
    - M.2 socket instead of mini PCIe
    - No docking
    - No TPM

Tested:
    - CPU i5-3337U
    - 8GiB SO-DIMM
    - Camera
    - PCIe and USB2 on M.2 slot with A key for WLAN
    - SATA and USB2 (no SuperSpeed components) on M.2 slot with B key for WWAN
    - On board SDHCI connected to PCIe
    - USB3 ports
    - libgfxinit-based graphics init
    - NVRAM options for North and South bridges
    - Sound
    - ThinkPad EC
    - S3
    - Linux 4.9 within Debian GNU/Linux stable, loaded from SeaBIOS.

Untested:
    - Touch screen, which is said to work under ubuntu but not debian.

Change-Id: Id59cdc5479aaf70809dd1ca613056263661455eb
Signed-off-by: Bill XIE <persmule@hardenedlinux.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41390
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

13 files changed, 363 insertions, 7 deletions

diff --git a/Documentation/mainboard/index.md b/Documentation/mainboard/index.md
index c5503e2616..c229b060d5 100644
--- a/Documentation/mainboard/index.md
+++ b/Documentation/mainboard/index.md
@@ -102,6 +102,7 @@ The boards in this section are not real mainboards, but emulators.
 - [W530](lenovo/w530.md)
 - [T430 / T530 / X230 / W530 common](lenovo/Ivy_Bridge_series.md)
 - [T431s](lenovo/t431s.md)
+- [X230s](lenovo/x230s.md)
 - [Internal flashing](lenovo/ivb_internal_flashing.md)
 
 ### Haswell series
diff --git a/Documentation/mainboard/lenovo/Ivy_Bridge_series.md b/Documentation/mainboard/lenovo/Ivy_Bridge_series.md
index f4f0efff6c..5f151663c4 100644
--- a/Documentation/mainboard/lenovo/Ivy_Bridge_series.md
+++ b/Documentation/mainboard/lenovo/Ivy_Bridge_series.md
@@ -1,6 +1,6 @@
 # Lenovo Ivy Bridge series
 
-This information is valid for all supported models, except T430s and T431s.
+This information is valid for all supported models, except T430s, [T431s](t431s.md) and [X230s](x230s.md).
 
 ## Flashing coreboot
 ```eval_rst
diff --git a/Documentation/mainboard/lenovo/x230s.md b/Documentation/mainboard/lenovo/x230s.md
new file mode 100644
index 0000000000..845410e17b
--- /dev/null
+++ b/Documentation/mainboard/lenovo/x230s.md
@@ -0,0 +1,19 @@
+# ThinkPad Lenovo X230s
+
+## Disassembly Instructions
+
+You must remove the following parts to access the SPI flash chip:
+
+![x230s_bc_removed](x230s_bc_removed.jpg)
+
+* Base cover
+
+The [Hardware Maintenance Manual](https://download.lenovo.com/ibmdl/pub/pc/pccbbs/
+mobiles_pdf/x230s_hmm_en_0c10860_01.pdf) could be used as a guidance of disassembly.
+
+The SPI flash chip (W25Q128.V in the form of SOIC-8 for the author's X230s, but varying is possible)
+is located at the circled place.
+
+Unlike [most Ivy Bridge ThinkPads](Ivy_Bridge_series.md), X230s has a single 16MiB SPI flash chip.
+
+The general [flashing tutorial](../../flash_tutorial/index.md) has more details.
diff --git a/Documentation/mainboard/lenovo/x230s_bc_removed.jpg b/Documentation/mainboard/lenovo/x230s_bc_removed.jpg
new file mode 100644
index 0000000000..1735e8100b
--- /dev/null
+++ b/Documentation/mainboard/lenovo/x230s_bc_removed.jpg
diff --git a/src/mainboard/lenovo/x230/Kconfig b/src/mainboard/lenovo/x230/Kconfig
index 8e5b857a92..39238f5690 100644
--- a/src/mainboard/lenovo/x230/Kconfig
+++ b/src/mainboard/lenovo/x230/Kconfig
@@ -1,4 +1,4 @@
-if BOARD_LENOVO_X230 || BOARD_LENOVO_X230T
+if BOARD_LENOVO_X230 || BOARD_LENOVO_X230T || BOARD_LENOVO_X230S
 
 config BOARD_SPECIFIC_OPTIONS
 	def_bool y
@@ -9,18 +9,20 @@ config BOARD_SPECIFIC_OPTIONS
 	select EC_LENOVO_PMH7
 	select EC_LENOVO_H8
 	select H8_HAS_BAT_TRESHOLDS_IMPL
+	select H8_HAS_PRIMARY_FN_KEYS if BOARD_LENOVO_X230S
 	select NO_UART_ON_SUPERIO
-	select BOARD_ROMSIZE_KB_12288
+	select BOARD_ROMSIZE_KB_12288 if BOARD_LENOVO_X230 || BOARD_LENOVO_X230T
+	select BOARD_ROMSIZE_KB_16384 if BOARD_LENOVO_X230S
 	select HAVE_ACPI_TABLES
 	select HAVE_OPTION_TABLE
 	select HAVE_CMOS_DEFAULT
 	select HAVE_ACPI_RESUME
 	select INTEL_INT15
 	select DRIVERS_RICOH_RCE822
-	select MAINBOARD_HAS_LPC_TPM
-	select MAINBOARD_HAS_TPM1
+	select MAINBOARD_HAS_LPC_TPM if BOARD_LENOVO_X230 || BOARD_LENOVO_X230T
+	select MAINBOARD_HAS_TPM1 if BOARD_LENOVO_X230 || BOARD_LENOVO_X230T
 	select MAINBOARD_HAS_LIBGFXINIT
-	select GFX_GMA_PANEL_1_ON_LVDS
+	select GFX_GMA_PANEL_1_ON_LVDS if BOARD_LENOVO_X230 || BOARD_LENOVO_X230T
 	select INTEL_GMA_HAVE_VBT
 	select MAINBOARD_USES_IFD_GBE_REGION
 
@@ -53,11 +55,13 @@ config MAINBOARD_DIR
 config VARIANT_DIR
 	string
 	default "x230" if BOARD_LENOVO_X230 || BOARD_LENOVO_X230T
+	default "x230s" if BOARD_LENOVO_X230S
 
 config MAINBOARD_PART_NUMBER
 	string
 	default "ThinkPad X230" if BOARD_LENOVO_X230
 	default "ThinkPad X230t" if BOARD_LENOVO_X230T
+	default "ThinkPad X230s" if BOARD_LENOVO_X230S
 
 config OVERRIDE_DEVICETREE
 	string
@@ -88,4 +92,4 @@ config PS2M_EISAID
 config THINKPADEC_HKEY_EISAID
 	default "LEN0068"
 
-endif # BOARD_LENOVO_X230 || BOARD_LENOVO_X230T
+endif # BOARD_LENOVO_X230 || BOARD_LENOVO_X230T ||  BOARD_LENOVO_X230S
diff --git a/src/mainboard/lenovo/x230/Kconfig.name b/src/mainboard/lenovo/x230/Kconfig.name
index 10fdc2ed11..1a01436879 100644
--- a/src/mainboard/lenovo/x230/Kconfig.name
+++ b/src/mainboard/lenovo/x230/Kconfig.name
@@ -3,3 +3,6 @@ config BOARD_LENOVO_X230
 
 config BOARD_LENOVO_X230T
 	bool "ThinkPad X230t"
+
+config BOARD_LENOVO_X230S
+	bool "ThinkPad X230s"
diff --git a/src/mainboard/lenovo/x230/variants/x230s/board_info.txt b/src/mainboard/lenovo/x230/variants/x230s/board_info.txt
new file mode 100644
index 0000000000..67b229455a
--- /dev/null
+++ b/src/mainboard/lenovo/x230/variants/x230s/board_info.txt
@@ -0,0 +1,7 @@
+Category: laptop
+Board name: ThinkPad X230s
+ROM package: SOIC-8
+ROM protocol: SPI
+ROM socketed: n
+Flashrom support: n
+Release year: 2013
diff --git a/src/mainboard/lenovo/x230/variants/x230s/data.vbt b/src/mainboard/lenovo/x230/variants/x230s/data.vbt
new file mode 100644
index 0000000000..42b0394daa
--- /dev/null
+++ b/src/mainboard/lenovo/x230/variants/x230s/data.vbt
diff --git a/src/mainboard/lenovo/x230/variants/x230s/early_init.c b/src/mainboard/lenovo/x230/variants/x230s/early_init.c
new file mode 100644
index 0000000000..362e7fa64a
--- /dev/null
+++ b/src/mainboard/lenovo/x230/variants/x230s/early_init.c
@@ -0,0 +1,26 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <northbridge/intel/sandybridge/raminit_native.h>
+#include <southbridge/intel/bd82x6x/pch.h>
+
+const struct southbridge_usb_port mainboard_usb_ports[] = {
+	{1, 3, 0},  /* SSP1: Right */
+	{1, 3, 1},  /* SSP2: Left, EHCI Debug */
+	{0, 1, 3},  /* SSP3 */
+	{1, 3, -1}, /* B0P4: WWAN USB */
+	{0, 1, 2},  /* B0P5 */
+	{0, 1, -1}, /* B0P6 */
+	{0, 1, -1}, /* B0P7 */
+	{0, 1, -1}, /* B0P8 */
+	{0, 1, -1}, /* B1P1 */
+	{0, 1, 5},  /* B1P2 */
+	{1, 1, -1}, /* B1P3: Fingerprint Reader */
+	{0, 1, -1}, /* B1P4 */
+	{1, 3, -1}, /* B1P5: WLAN USB */
+	{1, 1, -1}, /* B1P6: Camera */
+};
+
+void mainboard_get_spd(spd_raw_data *spd, bool id_only)
+{
+	read_spd(&spd[0], 0x50, id_only);
+}
diff --git a/src/mainboard/lenovo/x230/variants/x230s/gma-mainboard.ads b/src/mainboard/lenovo/x230/variants/x230s/gma-mainboard.ads
new file mode 100644
index 0000000000..fe9efd5686
--- /dev/null
+++ b/src/mainboard/lenovo/x230/variants/x230s/gma-mainboard.ads
@@ -0,0 +1,18 @@
+-- SPDX-License-Identifier: GPL-2.0-or-later
+
+with HW.GFX.GMA;
+with HW.GFX.GMA.Display_Probing;
+
+use HW.GFX.GMA;
+use HW.GFX.GMA.Display_Probing;
+
+private package GMA.Mainboard is
+
+   ports : constant Port_List :=
+     (DP1,
+      HDMI1,
+      Analog,
+      eDP,
+      others => Disabled);
+
+end GMA.Mainboard;
diff --git a/src/mainboard/lenovo/x230/variants/x230s/gpio.c b/src/mainboard/lenovo/x230/variants/x230s/gpio.c
new file mode 100644
index 0000000000..a216c6bab0
--- /dev/null
+++ b/src/mainboard/lenovo/x230/variants/x230s/gpio.c
@@ -0,0 +1,212 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <southbridge/intel/common/gpio.h>
+
+static const struct pch_gpio_set1 pch_gpio_set1_mode = {
+	.gpio0 = GPIO_MODE_GPIO,
+	.gpio1 = GPIO_MODE_GPIO,
+	.gpio2 = GPIO_MODE_GPIO,
+	.gpio3 = GPIO_MODE_GPIO,
+	.gpio4 = GPIO_MODE_GPIO,
+	.gpio5 = GPIO_MODE_GPIO,
+	.gpio6 = GPIO_MODE_GPIO,
+	.gpio7 = GPIO_MODE_GPIO,
+	.gpio8 = GPIO_MODE_GPIO,
+	.gpio9 = GPIO_MODE_NATIVE,
+	.gpio10 = GPIO_MODE_GPIO,
+	.gpio11 = GPIO_MODE_NATIVE,
+	.gpio12 = GPIO_MODE_NATIVE,
+	.gpio13 = GPIO_MODE_GPIO,
+	.gpio14 = GPIO_MODE_NATIVE,
+	.gpio15 = GPIO_MODE_GPIO,
+	.gpio16 = GPIO_MODE_GPIO,
+	.gpio17 = GPIO_MODE_GPIO,
+	.gpio18 = GPIO_MODE_NATIVE,
+	.gpio19 = GPIO_MODE_GPIO,
+	.gpio20 = GPIO_MODE_NATIVE,
+	.gpio21 = GPIO_MODE_GPIO,
+	.gpio22 = GPIO_MODE_GPIO,
+	.gpio23 = GPIO_MODE_NATIVE,
+	.gpio24 = GPIO_MODE_GPIO,
+	.gpio25 = GPIO_MODE_NATIVE,
+	.gpio26 = GPIO_MODE_GPIO,
+	.gpio27 = GPIO_MODE_GPIO,
+	.gpio28 = GPIO_MODE_GPIO,
+	.gpio29 = GPIO_MODE_GPIO,
+	.gpio30 = GPIO_MODE_NATIVE,
+	.gpio31 = GPIO_MODE_NATIVE,
+};
+
+static const struct pch_gpio_set1 pch_gpio_set1_direction = {
+	.gpio0 = GPIO_DIR_INPUT,
+	.gpio1 = GPIO_DIR_INPUT,
+	.gpio2 = GPIO_DIR_INPUT,
+	.gpio3 = GPIO_DIR_INPUT,
+	.gpio4 = GPIO_DIR_INPUT,
+	.gpio5 = GPIO_DIR_INPUT,
+	.gpio6 = GPIO_DIR_INPUT,
+	.gpio7 = GPIO_DIR_INPUT,
+	.gpio8 = GPIO_DIR_OUTPUT,
+	.gpio10 = GPIO_DIR_OUTPUT,
+	.gpio13 = GPIO_DIR_INPUT,
+	.gpio15 = GPIO_DIR_OUTPUT,
+	.gpio16 = GPIO_DIR_INPUT,
+	.gpio17 = GPIO_DIR_INPUT,
+	.gpio19 = GPIO_DIR_INPUT,
+	.gpio21 = GPIO_DIR_INPUT,
+	.gpio22 = GPIO_DIR_OUTPUT,
+	.gpio24 = GPIO_DIR_OUTPUT,
+	.gpio26 = GPIO_DIR_INPUT,
+	.gpio27 = GPIO_DIR_INPUT,
+	.gpio28 = GPIO_DIR_OUTPUT,
+	.gpio29 = GPIO_DIR_OUTPUT,
+};
+
+static const struct pch_gpio_set1 pch_gpio_set1_level = {
+	.gpio8 = GPIO_LEVEL_LOW,
+	.gpio10 = GPIO_LEVEL_HIGH,
+	.gpio15 = GPIO_LEVEL_LOW,
+	.gpio22 = GPIO_LEVEL_HIGH,
+	.gpio24 = GPIO_LEVEL_LOW,
+	.gpio28 = GPIO_LEVEL_LOW,
+	.gpio29 = GPIO_LEVEL_HIGH,
+};
+
+static const struct pch_gpio_set1 pch_gpio_set1_reset = {
+	.gpio24 = GPIO_RESET_RSMRST,
+};
+
+static const struct pch_gpio_set1 pch_gpio_set1_invert = {
+	.gpio1 = GPIO_INVERT,
+	.gpio6 = GPIO_INVERT,
+	.gpio13 = GPIO_INVERT,
+};
+
+static const struct pch_gpio_set1 pch_gpio_set1_blink = {
+};
+
+static const struct pch_gpio_set2 pch_gpio_set2_mode = {
+	.gpio32 = GPIO_MODE_NATIVE,
+	.gpio33 = GPIO_MODE_GPIO,
+	.gpio34 = GPIO_MODE_GPIO,
+	.gpio35 = GPIO_MODE_GPIO,
+	.gpio36 = GPIO_MODE_GPIO,
+	.gpio37 = GPIO_MODE_GPIO,
+	.gpio38 = GPIO_MODE_GPIO,
+	.gpio39 = GPIO_MODE_GPIO,
+	.gpio40 = GPIO_MODE_NATIVE,
+	.gpio41 = GPIO_MODE_NATIVE,
+	.gpio42 = GPIO_MODE_NATIVE,
+	.gpio43 = GPIO_MODE_GPIO,
+	.gpio44 = GPIO_MODE_GPIO,
+	.gpio45 = GPIO_MODE_GPIO,
+	.gpio46 = GPIO_MODE_NATIVE,
+	.gpio47 = GPIO_MODE_GPIO,
+	.gpio48 = GPIO_MODE_GPIO,
+	.gpio49 = GPIO_MODE_GPIO,
+	.gpio50 = GPIO_MODE_GPIO,
+	.gpio51 = GPIO_MODE_GPIO,
+	.gpio52 = GPIO_MODE_GPIO,
+	.gpio53 = GPIO_MODE_GPIO,
+	.gpio54 = GPIO_MODE_GPIO,
+	.gpio55 = GPIO_MODE_GPIO,
+	.gpio56 = GPIO_MODE_GPIO,
+	.gpio57 = GPIO_MODE_GPIO,
+	.gpio58 = GPIO_MODE_NATIVE,
+	.gpio59 = GPIO_MODE_NATIVE,
+	.gpio60 = GPIO_MODE_NATIVE,
+	.gpio61 = GPIO_MODE_NATIVE,
+	.gpio62 = GPIO_MODE_NATIVE,
+	.gpio63 = GPIO_MODE_NATIVE,
+};
+
+static const struct pch_gpio_set2 pch_gpio_set2_direction = {
+	.gpio33 = GPIO_DIR_OUTPUT,
+	.gpio34 = GPIO_DIR_INPUT,
+	.gpio35 = GPIO_DIR_INPUT,
+	.gpio36 = GPIO_DIR_INPUT,
+	.gpio37 = GPIO_DIR_INPUT,
+	.gpio38 = GPIO_DIR_INPUT,
+	.gpio39 = GPIO_DIR_INPUT,
+	.gpio43 = GPIO_DIR_OUTPUT,
+	.gpio44 = GPIO_DIR_INPUT,
+	.gpio45 = GPIO_DIR_INPUT,
+	.gpio47 = GPIO_DIR_INPUT,
+	.gpio48 = GPIO_DIR_INPUT,
+	.gpio49 = GPIO_DIR_INPUT,
+	.gpio50 = GPIO_DIR_INPUT,
+	.gpio51 = GPIO_DIR_OUTPUT,
+	.gpio52 = GPIO_DIR_OUTPUT,
+	.gpio53 = GPIO_DIR_OUTPUT,
+	.gpio54 = GPIO_DIR_INPUT,
+	.gpio55 = GPIO_DIR_OUTPUT,
+	.gpio56 = GPIO_DIR_INPUT,
+	.gpio57 = GPIO_DIR_INPUT,
+};
+
+static const struct pch_gpio_set2 pch_gpio_set2_level = {
+	.gpio33 = GPIO_LEVEL_HIGH,
+	.gpio43 = GPIO_LEVEL_HIGH,
+	.gpio51 = GPIO_LEVEL_HIGH,
+	.gpio52 = GPIO_LEVEL_HIGH,
+	.gpio53 = GPIO_LEVEL_HIGH,
+	.gpio55 = GPIO_LEVEL_HIGH,
+};
+
+static const struct pch_gpio_set2 pch_gpio_set2_reset = {
+};
+
+static const struct pch_gpio_set3 pch_gpio_set3_mode = {
+	.gpio64 = GPIO_MODE_GPIO,
+	.gpio65 = GPIO_MODE_GPIO,
+	.gpio66 = GPIO_MODE_GPIO,
+	.gpio67 = GPIO_MODE_GPIO,
+	.gpio68 = GPIO_MODE_GPIO,
+	.gpio69 = GPIO_MODE_GPIO,
+	.gpio70 = GPIO_MODE_GPIO,
+	.gpio71 = GPIO_MODE_GPIO,
+	.gpio72 = GPIO_MODE_NATIVE,
+	.gpio73 = GPIO_MODE_NATIVE,
+	.gpio74 = GPIO_MODE_NATIVE,
+	.gpio75 = GPIO_MODE_NATIVE,
+};
+
+static const struct pch_gpio_set3 pch_gpio_set3_direction = {
+	.gpio64 = GPIO_DIR_INPUT,
+	.gpio65 = GPIO_DIR_INPUT,
+	.gpio66 = GPIO_DIR_INPUT,
+	.gpio67 = GPIO_DIR_INPUT,
+	.gpio68 = GPIO_DIR_INPUT,
+	.gpio69 = GPIO_DIR_INPUT,
+	.gpio70 = GPIO_DIR_INPUT,
+	.gpio71 = GPIO_DIR_INPUT,
+};
+
+static const struct pch_gpio_set3 pch_gpio_set3_level = {
+};
+
+static const struct pch_gpio_set3 pch_gpio_set3_reset = {
+};
+
+const struct pch_gpio_map mainboard_gpio_map = {
+	.set1 = {
+		.mode		= &pch_gpio_set1_mode,
+		.direction	= &pch_gpio_set1_direction,
+		.level		= &pch_gpio_set1_level,
+		.blink		= &pch_gpio_set1_blink,
+		.invert		= &pch_gpio_set1_invert,
+		.reset		= &pch_gpio_set1_reset,
+	},
+	.set2 = {
+		.mode		= &pch_gpio_set2_mode,
+		.direction	= &pch_gpio_set2_direction,
+		.level		= &pch_gpio_set2_level,
+		.reset		= &pch_gpio_set2_reset,
+	},
+	.set3 = {
+		.mode		= &pch_gpio_set3_mode,
+		.direction	= &pch_gpio_set3_direction,
+		.level		= &pch_gpio_set3_level,
+		.reset		= &pch_gpio_set3_reset,
+	},
+};
diff --git a/src/mainboard/lenovo/x230/variants/x230s/hda_verb.c b/src/mainboard/lenovo/x230/variants/x230s/hda_verb.c
new file mode 100644
index 0000000000..77919041e5
--- /dev/null
+++ b/src/mainboard/lenovo/x230/variants/x230s/hda_verb.c
@@ -0,0 +1,33 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <device/azalia_device.h>
+
+const u32 cim_verb_data[] = {
+	0x10ec0269,	/* Codec Vendor / Device ID: Realtek */
+	0x17aa2209,	/* Subsystem ID */
+	11,		/* Number of 4 dword sets */
+	AZALIA_SUBVENDOR(0, 0x17aa2209),
+	AZALIA_PIN_CFG(0, 0x12, 0x90a60140),
+	AZALIA_PIN_CFG(0, 0x14, 0x90170110),
+	AZALIA_PIN_CFG(0, 0x15, 0x03211020),
+	AZALIA_PIN_CFG(0, 0x17, 0x40008000),
+	AZALIA_PIN_CFG(0, 0x18, 0x03a11030),
+	AZALIA_PIN_CFG(0, 0x19, 0x411111f0),
+	AZALIA_PIN_CFG(0, 0x1a, 0x411111f0),
+	AZALIA_PIN_CFG(0, 0x1b, 0x411111f0),
+	AZALIA_PIN_CFG(0, 0x1d, 0x40f38205),
+	AZALIA_PIN_CFG(0, 0x1e, 0x411111f0),
+
+	0x80862806,	/* Codec Vendor / Device ID: Intel */
+	0x80860101,	/* Subsystem ID */
+	4,		/* Number of 4 dword sets */
+	AZALIA_SUBVENDOR(3, 0x80860101),
+	AZALIA_PIN_CFG(3, 0x05, 0x18560010),
+	AZALIA_PIN_CFG(3, 0x06, 0x58560020),
+	AZALIA_PIN_CFG(3, 0x07, 0x58560030),
+
+};
+
+const u32 pc_beep_verbs[0] = {};
+
+AZALIA_ARRAY_SIZES;
diff --git a/src/mainboard/lenovo/x230/variants/x230s/overridetree.cb b/src/mainboard/lenovo/x230/variants/x230s/overridetree.cb
new file mode 100644
index 0000000000..6d37aabc01
--- /dev/null
+++ b/src/mainboard/lenovo/x230/variants/x230s/overridetree.cb
@@ -0,0 +1,33 @@
+chip northbridge/intel/sandybridge
+	# Enable DisplayPort Hotplug with 2ms pulse
+	register "gpu_dp_b_hotplug" = "4"
+	register "gpu_dp_c_hotplug" = "4"
+	register "gpu_dp_d_hotplug" = "4"
+
+	# Enable Panel as eDP and configure power delays
+	register "gpu_panel_port_select" = "1"			# eDP
+	register "gpu_panel_power_backlight_off_delay" = "1"	# 0.1ms
+	register "gpu_panel_power_backlight_on_delay" = "1"	# 0.1ms
+	register "gpu_panel_power_down_delay" = "500" 		# 50ms
+	register "gpu_panel_power_up_delay" = "2000"		# 200ms
+
+	device domain 0 on
+		subsystemid 0x17aa 0x2209 inherit
+		chip southbridge/intel/bd82x6x # Intel Series 7 Panther Point PCH
+			# X230s does not support docking
+			# Enable SATA ports 0 (HDD bay) & 1 (WWAN M.2 SATA)
+			register "sata_port_map" = "0x3"
+
+			device pci 1f.0 on # LPC bridge
+				chip ec/lenovo/h8
+					register "config1" = "0x05"
+					register "config3" = "0xc4"
+					register "event5_enable" = "0x3c"
+					register "evente_enable" = "0x1d"
+					# X230s only has BT on wlan card
+					register "has_bdc_detection" = "0"
+				end
+			end # LPC Controller
+		end
+	end
+end