mb/google/octopus: Create ampton variant

This commit creates an ampton variant for Octopus. The initial settings
are copied from Bip, but the following changes are made to support
hardware differences:

  * GPIO_66 is not connected (LTE).
  * GPIO_67 is not connected (LTE).
  * Updated comment for GPIO_134 (EC_AP_INT_ODL), but not configured yet.
  * GPIO_143 is not connected.
  * GPIO_144, GPIO_145 mapped to PEN_EJECT are not connected.
  * EN_PP3300_TOUCHSCREEN moved from GPIO_213 to GPIO_146.
  * GPIO_213 is not connected.
  * GPIO_214 is not connected.

BUG=b:111498206
TEST=None

Change-Id: I7d6cf19c906df19115b1101e3d91c62f5f3f61e3
Signed-off-by: Justin TerAvest <teravest@chromium.org>
Reviewed-on: https://review.coreboot.org/28663
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>

6 files changed, 439 insertions, 0 deletions

diff --git a/src/mainboard/google/octopus/variants/ampton/Makefile.inc b/src/mainboard/google/octopus/variants/ampton/Makefile.inc
new file mode 100644
index 0000000000..7c092e44c2
--- /dev/null
+++ b/src/mainboard/google/octopus/variants/ampton/Makefile.inc
@@ -0,0 +1,5 @@
+bootblock-y += gpio.c
+
+ramstage-y += gpio.c
+
+smm-y += gpio.c
diff --git a/src/mainboard/google/octopus/variants/ampton/gpio.c b/src/mainboard/google/octopus/variants/ampton/gpio.c
new file mode 100644
index 0000000000..81a8ebc406
--- /dev/null
+++ b/src/mainboard/google/octopus/variants/ampton/gpio.c
@@ -0,0 +1,321 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2018 Intel Corp.
+ *
+ * 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.
+ */
+
+#include <baseboard/gpio.h>
+#include <baseboard/variants.h>
+#include <commonlib/helpers.h>
+
+/*
+ * Pad configuration in ramstage. The order largely follows the 'GPIO Muxing'
+ * table found in EDS vol 1, but some pins aren't grouped functionally in
+ * the table so those were moved for more logical grouping.
+ */
+static const struct pad_config gpio_table[] = {
+	/* NORTHWEST COMMUNITY GPIOS */
+	PAD_CFG_NF_IOSTANDBY_IGNORE(GPIO_0, NONE, DEEP, NF1), /* TCK */
+	PAD_CFG_NF_IOSTANDBY_IGNORE(GPIO_1, DN_20K, DEEP, NF1), /* TRST_B */
+	PAD_CFG_NF_IOSTANDBY_IGNORE(GPIO_2, NONE, DEEP, NF1), /* TMS */
+	PAD_CFG_NF_IOSTANDBY_IGNORE(GPIO_3, NONE, DEEP, NF1), /* TDI */
+	PAD_CFG_NF_IOSTANDBY_IGNORE(GPIO_4, NONE, DEEP, NF1), /* TDO */
+	PAD_NC(GPIO_5, UP_20K), /* JTAGX -- unused */
+	PAD_CFG_NF_IOSTANDBY_IGNORE(GPIO_6, NONE, DEEP, NF1), /* CX_PREQ_B */
+	PAD_CFG_NF_IOSTANDBY_IGNORE(GPIO_7, NONE, DEEP, NF1), /* CX_PRDY_B */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_8, DN_20K, DEEP, NF5, HIZCRx0, DISPUPD), /* TRACE_0_CLK_VNN */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_9, DN_20K, DEEP, NF5, HIZCRx0, DISPUPD), /* TRACE_0_DATA0_VNN */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_10, DN_20K, DEEP, NF5, HIZCRx0, DISPUPD), /* TRACE_0_DATA1_VNN */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_11, DN_20K, DEEP, NF5, HIZCRx0, DISPUPD), /* TRACE_0_DATA2_VNN */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_12, DN_20K, DEEP, NF5, HIZCRx0, DISPUPD), /* TRACE_0_DATA3_VNN */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_13, DN_20K, DEEP, NF5, HIZCRx0, DISPUPD), /* TRACE_0_DATA4_VNN */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_14, DN_20K, DEEP, NF5, HIZCRx0, DISPUPD), /* TRACE_0_DATA5_VNN */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_15, DN_20K, DEEP, NF5, HIZCRx0, DISPUPD), /* TRACE_0_DATA6_VNN */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_16, DN_20K, DEEP, NF5, HIZCRx0, DISPUPD), /* TRACE_0_DATA7_VNN */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_17, DN_20K, DEEP, NF5, HIZCRx0, DISPUPD), /* DBG_PTI_CLK_1 */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_18, DN_20K, DEEP, NF5, HIZCRx0, DISPUPD), /* DBG_PTI_DATA_8 */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_19, DN_20K, DEEP, NF5, HIZCRx0, DISPUPD), /* DBG_PTI_DATA_9 */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_20, DN_20K, DEEP, NF5, HIZCRx0, DISPUPD), /* DBG_PTI_DATA_10 */
+	PAD_CFG_NF(GPIO_21, UP_20K, DEEP, NF2), /* CNV_MFUART2_RXD */
+	PAD_CFG_NF_IOSSTATE(GPIO_22, UP_20K, DEEP, NF2, TxDRxE), /* CNV_MFUART2_TXD */
+	PAD_CFG_NF(GPIO_23, UP_20K, DEEP, NF2), /* CNV_GNSS_PABLANKIt */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_24, DN_20K, DEEP, NF5, HIZCRx0, DISPUPD), /* TRACE_1_DATA6_VNN */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_25, DN_20K, DEEP, NF5, HIZCRx0, DISPUPD), /* TRACE_1_DATA7_VNN */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_26, DN_20K, DEEP, NF5, HIZCRx0, DISPUPD), /* TRACE_2_CLK_VNN */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_27, DN_20K, DEEP, NF5, HIZCRx0, DISPUPD), /* TRACE_2_DATA0_VNN */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_28, DN_20K, DEEP, NF5, HIZCRx0, DISPUPD), /* TRACE_2_DATA1_VNN 0*/
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_29, DN_20K, DEEP, NF5, HIZCRx0, DISPUPD), /* TRACE_2_DATA2_VNN */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_30, DN_20K, DEEP, NF5, HIZCRx0, DISPUPD), /* TRACE_2_DATA3_VNN */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_31, DN_20K, DEEP, NF5, HIZCRx0, DISPUPD), /* TRACE_2_DATA4_VNN */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_32, DN_20K, DEEP, NF5, HIZCRx0, DISPUPD), /* TRACE_2_DATA5_VNN */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_33, DN_20K, DEEP, NF5, HIZCRx0, DISPUPD), /* TRACE_2_DATA6_VNN */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_34, DN_20K, DEEP, NF5, HIZCRx0, DISPUPD), /* TRACE_2_DATA7_VNN */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_35, DN_20K, DEEP, NF5, HIZCRx0, DISPUPD), /* TRACE_3_CLK_VNN */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_36, DN_20K, DEEP, NF5, HIZCRx0, DISPUPD), /* TRACE_3_DATA0_VNN */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_37, DN_20K, DEEP, NF5, HIZCRx0, DISPUPD), /* TRACE_3_DATA1_VNN */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_38, DN_20K, DEEP, NF5, HIZCRx0, DISPUPD), /* TRACE_3_DATA2_VNN */
+	PAD_NC(GPIO_39, UP_20K), /* TRACE_3_DATA3_VNN -- unused */
+	PAD_NC(GPIO_40, UP_20K), /* TRACE_3_DATA4_VNN -- unused */
+	PAD_NC(GPIO_41, DN_20K), /* TRACE_3_DATA5_VNN -- unused */
+	PAD_NC(GPIO_42, DN_20K), /* GP_INTD_DSI_TE1 -- unused */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_43, DN_20K, DEEP, NF1, HIZCRx0, DISPUPD), /* GP_INTD_DSI_TE2 */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_44, UP_20K, DEEP, NF1, TxDRxE, ENPU), /* USB_OC0_B */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_45, UP_20K, DEEP, NF1, TxDRxE, ENPU), /* USB_OC1_B */
+	PAD_NC(GPIO_46, DN_20K), /* DSI_I2C_SDA -- unused */
+	PAD_NC(GPIO_47, DN_20K), /* DSI_I2C_SCL -- unused */
+
+	/* PMC stays active in suspend so disable standby for these pins */
+	PAD_CFG_NF_IOSTANDBY_IGNORE(GPIO_48, NONE, DEEP, NF1), /* PMC_I2C_SDA */
+	PAD_CFG_NF_IOSTANDBY_IGNORE(GPIO_49, NONE, DEEP, NF1), /* PMC_I2C_SCL */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_50, NONE, DEEP, NF1, HIZCRx1, DISPUPD), /* LPSS_I2C0_SDA */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_51, NONE, DEEP, NF1, HIZCRx1, DISPUPD), /* LPSS_I2C0_SCL */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_52, NONE, DEEP, NF1, HIZCRx1, DISPUPD), /* LPSS_I2C1_SDA */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_53, NONE, DEEP, NF1, HIZCRx1, DISPUPD), /* LPSS_I2C1_SCL */
+	PAD_NC(GPIO_54, UP_20K), /* LPSS_I2C2_SDA -- unused */
+	PAD_NC(GPIO_55, UP_20K), /* LPSS_I2C2_SCL -- unused */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_56, NONE, DEEP, NF1, HIZCRx1, DISPUPD), /* LPSS_I2C3_SDA */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_57, NONE, DEEP, NF1, HIZCRx1, DISPUPD), /* LPSS_I2C2_SCL */
+	PAD_NC(GPIO_58, UP_20K), /* LPSS_I2C4_SDA - unused */
+	PAD_NC(GPIO_59, UP_20K), /* LPSS_I2C4_SCL - unused */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_60, UP_20K, DEEP, NF1, HIZCRx1, DISPUPD), /* LPSS_UART0_RXD */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_61, UP_20K, DEEP, NF1, HIZCRx1, DISPUPD), /* LPSS_UART0_TXD */
+	PAD_NC(GPIO_62, UP_20K), /* UART0-RTS_B -- unused */
+	PAD_CFG_GPI_APIC_IOS(GPIO_63, NONE, DEEP, LEVEL, INVERT, TxDRxE, DISPUPD), /* H1_PCH_INT_ODL */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_64, UP_20K, DEEP, NF1, HIZCRx1, DISPUPD), /* LPSS_UART2_RXD */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_65, UP_20K, DEEP, NF1, TxLASTRxE, DISPUPD), /* LPSS_UART2_TXD */
+	PAD_NC(GPIO_66, UP_20K), /* LTE_OFF_ODL -- unused */
+	PAD_NC(GPIO_67, UP_20K), /*EN_PP3300_DX_LTE_SOC -- unused */
+	PAD_CFG_GPI(GPIO_68, NONE, DEEP), /* DRAM_ID0 */
+	PAD_CFG_GPI(GPIO_69, NONE, DEEP), /* DRAM_ID1 */
+	PAD_CFG_GPI(GPIO_70, NONE, DEEP), /* DRAM_ID2 */
+	PAD_CFG_GPI(GPIO_71, NONE, DEEP), /* DRAM_ID3 */
+	PAD_NC(GPIO_72, DN_20K), /* PMC_SPI_TXD -- unused */
+	PAD_NC(GPIO_73, DN_20K), /* PMC_SPI_CLK -- unused */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_74, UP_20K, DEEP, NF1, TxDRxE, ENPU), /* THERMTRIP_B */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_75, NONE, DEEP, NF1, TxDRxE, DISPUPD), /* PROCHOT_B */
+	PAD_NC(GPIO_211, UP_20K), /* EMMC_RST_B -- unused */
+	PAD_CFG_GPI_APIC_IOS(GPIO_212, NONE, DEEP, LEVEL, INVERT, HIZCRx1, DISPUPD), /* Touch Panel Int */
+	PAD_NC(GPIO_213, UP_20K), /* TP_AP_GPIO213 -- unused */
+	PAD_NC(GPIO_214, UP_20K), /* P_SENSOR_INT_L -- unused */
+
+	/* NORTH COMMUNITY GPIOS */
+
+	/* svid - unused */
+	PAD_NC(GPIO_76, UP_20K),/* SVID Alert - unused */
+	PAD_NC(GPIO_77, UP_20K),/* SVID Data - unused */
+	PAD_NC(GPIO_78, UP_20K),/* SVID Clk - unused */
+
+	/* LPSS */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_79, NONE, DEEP, NF1, HIZCRx0, DISPUPD), /* H1_SLAVE_SPI_CLK_R */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_80, NONE, DEEP, NF1, HIZCRx1, DISPUPD), /* H1_SLAVE_SPI_CS_L_R */
+	PAD_CFG_GPIO_HI_Z(GPIO_81, UP_20K, DEEP, HIZCRx0, DISPUPD), /* GPIO_81_DEBUG (Boot halt) -- MIPI60 DEBUG */
+	PAD_CFG_NF(GPIO_82, NONE, DEEP, NF1), /* H1_SLAVE_SPI_MISO */
+	PAD_CFG_NF(GPIO_83, NONE, DEEP, NF1), /* H1_SLAVE_SPI_MOSI_R */
+	PAD_NC(GPIO_84, NONE), /* LPSS_SPI_2_CLK - unused */
+	PAD_NC(GPIO_85, DN_20K), /* LPSS_SPI_2_FS0 - unused */
+	PAD_NC(GPIO_86, DN_20K), /* LPSS_SPI_2_FS1 - unused */
+	PAD_NC(GPIO_87, DN_20K), /* LPSS_SPI_2_FS2 - unused */
+	PAD_NC(GPIO_88, DN_20K), /* LPSS_SPI_2_RXD - unused */
+	PAD_NC(GPIO_89, DN_20K), /* LPSS_SPI_2_TXD - unused */
+
+	/* Fast SPI */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_90, NATIVE, DEEP, NF1, HIZCRx1, SAME),/* FST_SPI_CS0_B */
+	PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_91, 0, DEEP, NONE, Tx0RxDCRx0, DISPUPD),/* FST_SPI_CS1_B -- SPK_PA_EN_R */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_92, NATIVE, DEEP, NF1, HIZCRx1, SAME),/* FST_SPI_MOSI_IO0 */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_93, NATIVE, DEEP, NF1, HIZCRx1, SAME),/* FST_SPI_MISO_IO1 */
+	PAD_NC(GPIO_94, NATIVE),/* FST_SPI_IO2 - unused */
+	PAD_NC(GPIO_95, NATIVE),/* FST_SPI_IO3 - unused */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_96, NATIVE, DEEP, NF1, HIZCRx0, SAME),/* FST_SPI_CLK */
+
+	/* PMU Signals */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_98, NONE, DEEP, NF1, HIZCRx1, DISPUPD),/* PMU_PLTRST_B */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_99, NONE, DEEP, NF1, TxDRxE, DISPUPD),/* PMU_PWRBTN_B */
+	PAD_CFG_NF_IOSTANDBY_IGNORE(GPIO_100, NONE, DEEP, NF1),/* PMU_SLP_S0_B */
+	PAD_CFG_NF_IOSTANDBY_IGNORE(GPIO_101, NONE, DEEP, NF1),/* PMU_SLP_S3_B */
+	PAD_CFG_NF_IOSTANDBY_IGNORE(GPIO_102, NONE, DEEP, NF1),/* PMU_SLP_S4_B */
+	PAD_CFG_NF_IOSTANDBY_IGNORE(GPIO_103, NONE, DEEP, NF1),/* SUSPWRDNACK */
+	PAD_NC(GPIO_104, UP_20K),/* EMMC_DNX_PWR_EN_B - unused */
+	PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_105, 1, DEEP, NONE, Tx1RXDCRx0, DISPUPD),/* GPIO_105 -- TOUCHSCREEN_RST */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_106, NONE, DEEP, NF1, HIZCRx1, DISPUPD),/* PMU_BATLOW_B */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_107, NONE, DEEP, NF1, TxDRxE, DISPUPD),/* PMU_RESETBUTTON_B */
+	PAD_NC(GPIO_108, NONE),/* PMU_SUSCLK -- unused */
+	PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_109, 1, DEEP, NONE, Tx1RxDCRx1, DISPUPD),/* SUS_STAT_B -- BT_DISABLE_L */
+
+	/* I2C5 - Audio */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_110, NONE, DEEP, NF1, HIZCRx1, DISPUPD),/* LPSS_I2C5_SDA */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_111, NONE, DEEP, NF1, HIZCRx1, DISPUPD),/* LPSS_I2C5_SCL */
+
+	/* I2C6 - Trackpad */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_112, NONE, DEEP, NF1, HIZCRx1, DISPUPD),/* LPSS_I2C6_SDA */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_113, NONE, DEEP, NF1, HIZCRx1, DISPUPD),/* LPSS_I2C6_SCL */
+
+	/* I2C7 - Touchscreen */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_114, NONE, DEEP, NF1, HIZCRx1, DISPUPD),/* LPSS_I2C7_SDA */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_115, NONE, DEEP, NF1, HIZCRx1, DISPUPD),/* LPSS_I2C7_SCL */
+
+	/* PCIE_WAKE[0:3]_B */
+	PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_116, 1, DEEP, NONE, Tx1RxDCRx1, DISPUPD), /* PCIE_WAKE0_B -- WIFI_DISABLE_L */
+	PAD_CFG_GPI_SCI_LOW(GPIO_117, NONE, DEEP, EDGE_SINGLE),/* PCIE_WAKE1_B -- LTE_WAKE_L */
+	PAD_NC(GPIO_118, UP_20K),/* PCIE_WAKE2_B -- unused */
+	PAD_CFG_GPI_SCI_LOW(GPIO_119, NONE, DEEP, EDGE_SINGLE),/* PCIE_WAKE3_B */
+
+	/*
+	 * PCIE_CLKREQ[0:3]_B. For unused pins, follow the termination
+	 * guideline for unused PCIE ports as described in PDG i.e. keep
+	 * the pins in native mode and deploy the internal pull up.
+	 */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_120, UP_20K, DEEP, NF1, HIZCRx1, ENPU),/* PCIE_CLKREQ0_B -- unused */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_121, UP_20K, DEEP, NF1, HIZCRx1, ENPU),/* PCIE_CLKREQ1_B -- unused */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_122, UP_20K, DEEP, NF1, HIZCRx1, ENPU),/* PCIE_CLKREQ2_B -- unused */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_123, NONE, DEEP, NF1, TxDRxE, DISPUPD), /* PCIE_CLKREQ3_B */
+
+	/* DDI[0:1] SDA and SCL -- unused */
+	PAD_NC(GPIO_124, UP_20K),/* HV_DDI0_DDC_SDA -- unused */
+	PAD_NC(GPIO_125, UP_20K),/* HV_DDI0_DDC_SCL -- unused */
+	PAD_NC(GPIO_126, UP_20K),/* HV_DDI1_DDC_SDA -- unused */
+	PAD_NC(GPIO_127, UP_20K),/* HV_DDI1_DDC_SCL -- unused */
+
+	/* Panel 0 control */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_128, NONE, DEEP, NF1, Tx0RxDCRx0, DISPUPD),/* PANEL0_VDDEN*/
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_129, NONE, DEEP, NF1, Tx0RxDCRx0, DISPUPD),/* PANEL0_BKLTEN */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_130, NONE, DEEP, NF1, Tx0RxDCRx0, DISPUPD),/* PANEL0_BKLTCTL */
+
+	/* Hot plug detect. */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_131, NONE, DEEP, NF1, HIZCRx1, DISPUPD),/* HV_DDI0_HPD */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_132, NONE, DEEP, NF1, HIZCRx1, DISPUPD),/* HV_DDI1_HPD */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_133, NONE, DEEP, NF1, HIZCRx1, DISPUPD),/* HV_EDP_HPD */
+
+	PAD_NC(GPIO_134, NONE),/* GPIO_134 -- EC_AP_INT_ODL */
+	PAD_CFG_GPI_APIC_IOS(GPIO_135, NONE, DEEP, LEVEL, INVERT, HIZCRx1, DISPUPD),/* GPIO_135 -- TRACKPAD_INT1_1V8_ODL */
+	PAD_CFG_GPI_APIC_IOS(GPIO_136, NONE, DEEP, LEVEL, INVERT, TxDRxE, DISPUPD),/* GPIO_136 -- PMIC_PCH_INT_ODL */
+	PAD_CFG_GPI_APIC_IOS(GPIO_137, NONE, DEEP, EDGE_BOTH, INVERT, HIZCRx1,
+				DISPUPD),/* GPIO_137 -- HP_INT_ODL */
+	PAD_CFG_GPI_APIC_IOS(GPIO_138, NONE, DEEP, LEVEL, INVERT, HIZCRx1, DISPUPD),/* GPIO_138 -- PEN_PDCT_ODL */
+	PAD_CFG_GPI_APIC_IOS(GPIO_139, NONE, DEEP, LEVEL, INVERT, HIZCRx1, DISPUPD),/* GPIO_139 -- PEN_INT_ODL */
+	PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_140, 0, DEEP, NONE, Tx1RXDCRx0, DISPUPD),/* GPIO_140 -- PEN_RESET */
+	// Also we may be able to use eSPI WAKE# Virtual Wire instead
+	PAD_CFG_GPI_SCI_IOS(GPIO_141, NONE, DEEP, EDGE_SINGLE, INVERT, IGNORE, DISPUPD),/* GPIO_141 -- EC_PCH_WAKE_ODL */
+	PAD_CFG_GPI_SCI_LOW(GPIO_142, NONE, DEEP, LEVEL),/* GPIO_142 -- TRACKPAD_INT2_1V8_ODL */
+	PAD_NC(GPIO_143, UP_20K), /* GPIO_143 - NC */
+	PAD_NC(GPIO_144, UP_20K), /* GPIO_144 - PEN_EJECT */
+	PAD_NC(GPIO_145, UP_20K), /* GPIO_145 - PEN_EJECT */
+	PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_146, 0, DEEP, NONE, Tx0RxDCRx0, DISPUPD), /* EN_PP3300_TOUCHSCREEN */
+
+	/*
+	 * GPIO_154 - LPC_CLKRUN# has a native function for LPC but not for
+	 * eSPI. Nonetheless if we use eSPI, it should be configured as a GPIO
+	 * and kept unconnected to allow S0ix entry.
+	 */
+
+	/* AUDIO COMMUNITY GPIOS*/
+	PAD_NC(GPIO_156, DN_20K), /* AVS_I2S0_MCLK -- unused */
+	PAD_NC(GPIO_157, DN_20K),/* AVS_I2S0_BCLK -- unused */
+	PAD_NC(GPIO_158, DN_20K),/* AVS_I2S0_WS_SYNC -- unused */
+	PAD_NC(GPIO_159, DN_20K),/* AVS_I2S0_SDI -- unused */
+	PAD_NC(GPIO_160, DN_20K),/* AVS_I2S0_SDO -- unused */
+	PAD_NC(GPIO_161, DN_20K),/* AVS_I2S1_MCLK -- unused */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_162, NONE, DEEP, NF1, HIZCRx0, DISPUPD), /* AVS_I2S1_BCLK */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_163, NONE, DEEP, NF1, HIZCRx0, DISPUPD), /* AVS_I2S1_WS_SYNC */
+	PAD_CFG_GPO(GPIO_164, 0, DEEP), /* WLAN_PE_RST */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_165, NONE, DEEP, NF1, HIZCRx0, DISPUPD), /* AVS_I2S1_SDO */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_166, NONE, DEEP, NF2, HIZCRx0, DISPUPD), /* AVS_I2S2_BCLK */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_167, NONE, DEEP, NF2, HIZCRx0, DISPUPD), /* AVS_I2S2_WS_SYNC */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_168, NONE, DEEP, NF2, HIZCRx0, DISPUPD), /* AVS_I2S2_SDI */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_169, NONE, DEEP, NF2, HIZCRx0, DISPUPD), /* AVS_I2S2_SD0 */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_170, DN_20K, DEEP, NF2, HIZCRx0, DISPUPD), /* AVS_I2S1_MCLK */
+
+	/* Disable standby for GPIO_171 and GPIO_173 to support Wake on Voice */
+	PAD_CFG_NF_IOSSTATE(GPIO_171, DN_20K, DEEP, NF1, HIZCRx0), /* AVS_M_CLK_A1 */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_172, DN_20K, DEEP, NF1, HIZCRx0, DISPUPD), /* AVS_M_CLK_B1 */
+	PAD_CFG_NF_IOSSTATE(GPIO_173, DN_20K, DEEP, NF1, HIZCRx0), /* AVS_M_DATA_1 */
+	PAD_NC(GPIO_174, DN_20K), /* AVS_M_CLK_AB2 -- unused */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_175, NONE, DEEP, NF1, HIZCRx0, DISPUPD), /* AVS_M_DATA_2 */
+
+	/* SCC COMMUNITY GPIOS */
+	PAD_NC(GPIO_176, UP_20K), /* SMB_ALERTB -- unused */
+	PAD_NC(GPIO_177, UP_20K), /* SMB_CLK -- unused */
+	PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_178, 1, DEEP, NONE, Tx1RXDCRx0, DISPUPD), /* EN_PP3300_WLAN */
+	PAD_NC(GPIO_179, NONE), /* SDCARD_CLK -- unused */
+	PAD_NC(GPIO_180, NONE), /* SDCARD_CMD -- unused */
+	PAD_NC(GPIO_181, UP_20K), /* SDCARD_D0 -- unused */
+	PAD_NC(GPIO_182, UP_20K), /* SDCARD_D1 -- unused */
+	PAD_NC(GPIO_183, UP_20K), /* SDCARD_D2 -- unused */
+	PAD_NC(GPIO_184, UP_20K), /* SDCARD_D3 -- unused */
+	PAD_NC(GPIO_185, UP_20K), /* SDCARD_CMD -- unused */
+	PAD_NC(GPIO_186, UP_20K), /* SDCARD_CD_N -- unused */
+	PAD_NC(GPIO_187, NONE), /* SDCARD_LVL_WP -- unused */
+	PAD_NC(GPIO_188, UP_20K), /* SDCARD_PWR_DWN_N -- unused */
+	PAD_CFG_GPI(GPIO_189, NONE, DEEP), /* EC_IN_RW */
+	PAD_CFG_GPI(GPIO_190, NONE, DEEP), /* PCH_WP_OD */
+
+	/*
+	 * Disable standby state for these CNVI pins to allow wake on
+	 * WiFI & Bluetooth.
+	 */
+	PAD_CFG_NF_IOSTANDBY_IGNORE(GPIO_191, NONE, DEEP, NF1), /* CNV_BRI_DT */
+	PAD_CFG_NF_IOSTANDBY_IGNORE(GPIO_192, UP_20K, DEEP, NF1), /* CNV_BRI_RSP */
+	PAD_CFG_NF_IOSTANDBY_IGNORE(GPIO_193, NONE, DEEP, NF1), /* CNV_RGI_DT */
+	PAD_CFG_NF_IOSTANDBY_IGNORE(GPIO_194, UP_20K, DEEP, NF1), /* CNV_RGI_RSP */
+	PAD_CFG_NF_IOSTANDBY_IGNORE(GPIO_195, NONE, DEEP, NF1), /* CNV_RF_RESET_B */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_198, DN_20K, DEEP, NF1, HIZCRx0, ENPD), /* EMMC0_CLK */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_200, UP_20K, DEEP, NF1, HIZCRx1, ENPU), /* EMMC0_D0 */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_201, UP_20K, DEEP, NF1, HIZCRx1, ENPU), /* EMMC0_D1 */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_202, UP_20K, DEEP, NF1, HIZCRx1, ENPU), /* EMMC0_D2 */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_203, UP_20K, DEEP, NF1, HIZCRx1, ENPU), /* EMMC0_D3 */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_204, UP_20K, DEEP, NF1, HIZCRx1, ENPU), /* EMMC0_D4 */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_205, UP_20K, DEEP, NF1, HIZCRx1, ENPU), /* EMMC0_D5 */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_206, UP_20K, DEEP, NF1, HIZCRx1, ENPU), /* EMMC0_D6 */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_207, UP_20K, DEEP, NF1, HIZCRx1, ENPU), /* EMMC0_D7 */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_208, UP_20K, DEEP, NF1, HIZCRx1, ENPU), /* EMMC0_CMD */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_209, NONE, DEEP, NF1, HIZCRx0, DISPUPD), /* EMMC0_STROBE */
+	PAD_NC(GPIO_210, DN_20K),
+};
+
+const struct pad_config *variant_base_gpio_table(size_t *num)
+{
+	*num = ARRAY_SIZE(gpio_table);
+	return gpio_table;
+}
+
+/* GPIOs needed prior to ramstage. */
+static const struct pad_config early_gpio_table[] = {
+	PAD_CFG_GPI(GPIO_190, NONE, DEEP), /* PCH_WP_OD */
+	/* GSPI0_INT */
+	PAD_CFG_GPI_APIC_IOS(GPIO_63, NONE, DEEP, LEVEL, INVERT, TxDRxE,
+		DISPUPD), /* H1_PCH_INT_ODL */
+	/* GSPI0_CLK */
+	PAD_CFG_NF(GPIO_79, NONE, DEEP, NF1), /* H1_SLAVE_SPI_CLK_R */
+	/* GSPI0_CS# */
+	PAD_CFG_NF(GPIO_80, NONE, DEEP, NF1), /* H1_SLAVE_SPI_CS_L_R */
+	/* GSPI0_MISO */
+	PAD_CFG_NF(GPIO_82, NONE, DEEP, NF1), /* H1_SLAVE_SPI_MISO */
+	/* GSPI0_MOSI */
+	PAD_CFG_NF(GPIO_83, NONE, DEEP, NF1), /* H1_SLAVE_SPI_MOSI_R */
+
+	/* Enable power to wifi early in bootblock and de-assert PERST#. */
+	PAD_CFG_GPO(GPIO_178, 1, DEEP), /* EN_PP3300_WLAN */
+	PAD_CFG_GPO(GPIO_164, 0, DEEP), /* WLAN_PE_RST */
+
+	/*
+	 * ESPI_IO1 acts as ALERT# (which is open-drain) and requies a weak
+	 * pull-up for proper operation. Since there is no external pull present
+	 * on this platform, configure an internal weak pull-up.
+	 */
+	PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_151, UP_20K, DEEP, NF2, HIZCRx1,
+				    ENPU), /* ESPI_IO1 */
+};
+
+const struct pad_config *variant_early_gpio_table(size_t *num)
+{
+	*num = ARRAY_SIZE(early_gpio_table);
+	return early_gpio_table;
+}
diff --git a/src/mainboard/google/octopus/variants/ampton/include/variant/acpi/dptf.asl b/src/mainboard/google/octopus/variants/ampton/include/variant/acpi/dptf.asl
new file mode 100644
index 0000000000..cc17d560cf
--- /dev/null
+++ b/src/mainboard/google/octopus/variants/ampton/include/variant/acpi/dptf.asl
@@ -0,0 +1,16 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2018 Google LLC
+ *
+ * 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.
+ */
+
+#include <baseboard/acpi/dptf.asl>
diff --git a/src/mainboard/google/octopus/variants/ampton/include/variant/ec.h b/src/mainboard/google/octopus/variants/ampton/include/variant/ec.h
new file mode 100644
index 0000000000..16f931b6cd
--- /dev/null
+++ b/src/mainboard/google/octopus/variants/ampton/include/variant/ec.h
@@ -0,0 +1,21 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2018 Google LLC
+ *
+ * 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.
+ */
+
+#ifndef MAINBOARD_EC_H
+#define MAINBOARD_EC_H
+
+#include <baseboard/ec.h>
+
+#endif
diff --git a/src/mainboard/google/octopus/variants/ampton/include/variant/gpio.h b/src/mainboard/google/octopus/variants/ampton/include/variant/gpio.h
new file mode 100644
index 0000000000..1fd1e11716
--- /dev/null
+++ b/src/mainboard/google/octopus/variants/ampton/include/variant/gpio.h
@@ -0,0 +1,21 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2018 Google LLC
+ *
+ * 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.
+ */
+
+#ifndef MAINBOARD_GPIO_H
+#define MAINBOARD_GPIO_H
+
+#include <baseboard/gpio.h>
+
+#endif /* MAINBOARD_GPIO_H */
diff --git a/src/mainboard/google/octopus/variants/ampton/overridetree.cb b/src/mainboard/google/octopus/variants/ampton/overridetree.cb
new file mode 100644
index 0000000000..cd0ea188c1
--- /dev/null
+++ b/src/mainboard/google/octopus/variants/ampton/overridetree.cb
@@ -0,0 +1,55 @@
+chip soc/intel/apollolake
+
+	device domain 0 on
+		device pci 16.0 on
+			chip drivers/i2c/hid
+				register "generic.hid" = ""WCOM50C1""
+				register "generic.desc" = ""WCOM Digitizer""
+				register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPIO_139_IRQ)"
+				register "generic.reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPIO_140)"
+				register "generic.has_power_resource" = "1"
+				register "hid_desc_reg_offset" = "0x1"
+				device i2c 0x9 on end
+			end
+		end	# - I2C 0
+		device pci 17.1 on
+			chip drivers/i2c/generic
+				register "hid" = ""10EC5682""
+				register "name" = ""RT58""
+				register "desc" = ""Realtek RT5682""
+				register "irq" = "ACPI_IRQ_LEVEL_LOW(GPIO_137_IRQ)"
+				register "probed" = "1"
+				register "property_count" = "1"
+				# Set the jd_src to RT5668_JD1 for jack detection
+				register "property_list[0].type" = "ACPI_DP_TYPE_INTEGER"
+				register "property_list[0].name" = ""realtek,jd-src""
+				register "property_list[0].integer" = "1"
+				device i2c 1a on end
+			end
+		end	# - I2C 5
+		device pci 17.2 on
+			chip drivers/i2c/generic
+				register "hid" = ""ELAN0000""
+				register "desc" = ""ELAN Touchpad""
+				register "irq" = "ACPI_IRQ_EDGE_LOW(GPIO_135_IRQ)"
+				register "wake" = "GPE0_DW2_02"
+				register "probed" = "1"
+				device i2c 15 on end
+			end
+		end	# - I2C 6
+		device pci 17.3 on
+			chip drivers/i2c/generic
+				register "hid" = ""ELAN0001""
+				register "desc" = ""ELAN Touchscreen""
+				register "irq" = "ACPI_IRQ_EDGE_LOW(GPIO_212_IRQ)"
+				register "probed" = "1"
+				register "reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPIO_105)"
+				register "reset_delay_ms" = "20"
+				register "enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPIO_146)"
+				register "enable_delay_ms" = "1"
+				register "has_power_resource" = "1"
+				device i2c 10 on end
+			end
+		end	# - I2C 7
+	end
+end