mb/google/kahlee/nuwani: Create Nuwani variant

This commit creates a nuwani variant for Grunt. The initial settings
override the baseboard was copied from variant treeya.

BUG=b:144890301
TEST=emerge-grunt coreboot

Signed-off-by: Peichao Wang <peichao.wang@bitland.corp-partner.google.com>
Change-Id: Id3a7fc890340e5a88ebc4b516dc2c0b085654999
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39316
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Mathew King <mathewk@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/mainboard/google/kahlee/Kconfig b/src/mainboard/google/kahlee/Kconfig
index 7d98d89..b46c1f6 100644
--- a/src/mainboard/google/kahlee/Kconfig
+++ b/src/mainboard/google/kahlee/Kconfig
@@ -66,6 +66,7 @@
 	default "careena" if BOARD_GOOGLE_CAREENA
 	default "grunt" if BOARD_GOOGLE_GRUNT
 	default "liara" if BOARD_GOOGLE_LIARA
+	default "nuwani" if BOARD_GOOGLE_NUWANI
 	default "treeya" if BOARD_GOOGLE_TREEYA
 
 config MAINBOARD_PART_NUMBER
diff --git a/src/mainboard/google/kahlee/Kconfig.name b/src/mainboard/google/kahlee/Kconfig.name
index 03d7baa..d040f31 100644
--- a/src/mainboard/google/kahlee/Kconfig.name
+++ b/src/mainboard/google/kahlee/Kconfig.name
@@ -12,6 +12,9 @@
 config BOARD_GOOGLE_LIARA
 	bool "->  Liara"
 	select BOARD_GOOGLE_BASEBOARD_KAHLEE
+config BOARD_GOOGLE_NUWANI
+	bool "->  Nuwani"
+	select BOARD_GOOGLE_BASEBOARD_KAHLEE
 config BOARD_GOOGLE_TREEYA
 	bool "->  Treeya"
 	select BOARD_GOOGLE_BASEBOARD_KAHLEE
diff --git a/src/mainboard/google/kahlee/variants/nuwani/Makefile.inc b/src/mainboard/google/kahlee/variants/nuwani/Makefile.inc
new file mode 100644
index 0000000..3753268
--- /dev/null
+++ b/src/mainboard/google/kahlee/variants/nuwani/Makefile.inc
@@ -0,0 +1,20 @@
+#
+# This file is part of the coreboot project.
+#
+# Copyright (C) 2020 Google, 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.
+#
+
+subdirs-y += ./spd
+
+romstage-y += ../baseboard/romstage.c
+
+ramstage-y += mainboard.c
diff --git a/src/mainboard/google/kahlee/variants/nuwani/devicetree.cb b/src/mainboard/google/kahlee/variants/nuwani/devicetree.cb
new file mode 100644
index 0000000..6c953b1
--- /dev/null
+++ b/src/mainboard/google/kahlee/variants/nuwani/devicetree.cb
@@ -0,0 +1,196 @@
+#
+# This file is part of the coreboot project.
+#
+# Copyright (C) 2015-2017 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.
+#
+chip soc/amd/stoneyridge
+	register "spd_addr_lookup" = "
+	{
+		{ {0xA0, 0x00} }, // socket 0 - Channel 0, slot 0
+	}"
+	register "dram_clear_on_reset" = "DRAM_CONTENTS_KEEP"
+	register "uma_mode" = "UMAMODE_SPECIFIED_SIZE"
+	register "uma_size" = "16 * MiB"
+	register "stapm_percent" = "80"
+	register "stapm_time_ms" = "2000000"
+	register "stapm_power_mw" = "7800"
+	register "lvds_poseq_varybl_to_blon" = "0x5"
+	register "lvds_poseq_blon_to_varybl" = "0x5"
+
+	# Enable I2C0 for audio, USB3 hub at 400kHz
+	register "i2c[0]" = "{
+		.speed = I2C_SPEED_FAST,
+		.rise_time_ns = 95,
+		.fall_time_ns = 3,
+	}"
+
+	# Enable I2C1 for H1 at 400kHz
+	register "i2c[1]" = "{
+		.early_init = 1,
+		.speed = I2C_SPEED_FAST,
+		.rise_time_ns = 3,
+		.fall_time_ns = 2,
+	}"
+
+	# Enable I2C2 for trackpad, pen at 400kHz
+	register "i2c[2]" = "{
+		.speed = I2C_SPEED_FAST,
+		.rise_time_ns = 3,
+		.fall_time_ns = 2,
+		.data_hold_time_ns = 400,
+	}"
+
+	# Enable I2C3 for touchscreen at 400kHz
+	register "i2c[3]" = "{
+		.speed = I2C_SPEED_FAST,
+		.rise_time_ns = 16,
+		.fall_time_ns = 8,
+	}"
+
+	register "i2c_scl_reset" = "GPIO_I2C0_SCL | GPIO_I2C1_SCL | \
+				    GPIO_I2C2_SCL | GPIO_I2C3_SCL"
+
+	device cpu_cluster 0 on
+		device lapic 10 on end
+	end
+	device domain 0 on
+		device pci 0.0 on  end # Root Complex
+		device pci 0.2 off end # IOMMU (Disabled for performance and battery)
+		device pci 1.0 on  end # Internal Graphics P2P bridge 0x98e4
+		device pci 1.1 on  end # Internal Multimedia
+		device pci 2.0 on  end # PCIe Host Bridge
+		device pci 2.1 on  end #
+		device pci 2.2 on  end #
+		device pci 2.3 on  end #
+		device pci 2.4 on
+			chip drivers/generic/bayhub
+				register "power_saving" = "1"
+				device pci 00.0 on end
+			end
+		end #
+		device pci 2.5 on  end #
+		device pci 8.0 on  end # PSP
+		device pci 9.0 on  end # PCIe Host Bridge
+		device pci 9.2 on  end # HDA
+		device pci 10.0 on  end # xHCI
+		device pci 11.0 off  end # SATA
+		device pci 12.0 on  end # EHCI
+		device pci 14.0 on      # SMbus
+		end # SMbus
+		device pci 14.3 on
+			chip ec/google/chromeec
+				device pnp 0c09.0 on end
+			end
+		end # LPC
+		device pci 14.7 on  end # SD
+		device pci 18.0 on  end
+		device pci 18.1 on  end
+		device pci 18.2 on  end
+		device pci 18.3 on  end
+		device pci 18.4 on  end
+		device pci 18.5 on  end
+	end #domain
+	device mmio 0xfedc2000 on
+		chip drivers/generic/adau7002
+			device generic 0.0 on end
+		end
+		chip drivers/i2c/da7219
+			register "irq_gpio" = "ACPI_GPIO_IRQ_EDGE_LOW(GPIO_14)"
+			register "btn_cfg" = "50"
+			register "mic_det_thr" = "500"
+			register "jack_ins_deb" = "20"
+			register "jack_det_rate" = ""32ms_64ms""
+			register "jack_rem_deb" = "1"
+			register "a_d_btn_thr" = "0xa"
+			register "d_b_btn_thr" = "0x16"
+			register "b_c_btn_thr" = "0x21"
+			register "c_mic_btn_thr" = "0x3e"
+			register "btn_avg" = "4"
+			register "adc_1bit_rpt" = "1"
+			register "micbias_lvl" = "2600"
+			register "mic_amp_in_sel" = ""diff""
+			register "mclk_name" = ""oscout1""
+			device i2c 1a on end
+		end
+		chip drivers/generic/max98357a
+			register "sdmode_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPIO_119)"
+			register "sdmode_delay" = "5"
+			device generic 0.1 on end
+		end
+	end
+	device mmio 0xfedc3000 on
+		chip drivers/i2c/tpm
+			register "hid" = ""GOOG0005""
+			register "desc" = ""Cr50 TPM""
+			register "irq_gpio" = "ACPI_GPIO_IRQ_EDGE_LOW(GPIO_9)"
+			device i2c 50 on end
+		end
+	end
+	device mmio 0xfedc4000 on
+		chip drivers/i2c/generic
+			register "hid" = ""ELAN0000""
+			register "desc" = ""ELAN Touchpad""
+			register "irq_gpio" = "ACPI_GPIO_IRQ_LEVEL_LOW(GPIO_5)"
+			register "wake" = "7"
+			register "probed" = "1"
+			device i2c 15 on end
+		end
+		chip drivers/i2c/hid
+			register "generic.hid" = ""PNP0C50""
+			register "generic.desc" = ""Synaptics Touchpad""
+			register "generic.irq_gpio" = "ACPI_GPIO_IRQ_EDGE_LOW(GPIO_5)"
+			register "generic.wake" = "7"
+			register "generic.probed" = "1"
+			register "hid_desc_reg_offset" = "0x20"
+			device i2c 0x2c on end
+		end
+	end
+	device mmio 0xfedc5000 on
+		chip drivers/i2c/hid
+			register "generic.hid" = ""SYTS7817""
+			register "generic.desc" = ""Synaptics Touchscreen""
+			register "generic.irq_gpio" = "ACPI_GPIO_IRQ_EDGE_LOW(GPIO_11)"
+			register "generic.probed" = "1"
+			register "generic.reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPIO_85)"
+			register "generic.enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPIO_76)"
+			register "generic.reset_delay_ms" = "45"
+			register "generic.has_power_resource" = "1"
+			register "generic.disable_gpio_export_in_crs" = "1"
+			register "hid_desc_reg_offset" = "0x20"
+			device i2c 20 on end
+		end
+		chip drivers/i2c/generic
+			register "hid" = ""RAYD0001""
+			register "desc" = ""Raydium Touchscreen""
+			register "probed" = "1"
+			register "irq_gpio" = "ACPI_GPIO_IRQ_EDGE_LOW(GPIO_11)"
+			register "reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPIO_85)"
+			register "reset_delay_ms" = "20"
+			register "enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPIO_76)"
+			register "enable_delay_ms" = "1"
+			register "has_power_resource" = "1"
+			device i2c 39 on end
+		end
+		chip drivers/i2c/generic
+			register "hid" = ""ELAN0001""
+			register "desc" = ""ELAN Touchscreen""
+			register "probed" = "1"
+			register "irq_gpio" = "ACPI_GPIO_IRQ_LEVEL_LOW(GPIO_11)"
+			register "reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPIO_85)"
+			register "reset_delay_ms" = "20"
+			register "enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPIO_76)"
+			register "enable_delay_ms" = "1"
+			register "has_power_resource" = "1"
+			device i2c 10 on end
+		end
+	end
+end	#chip soc/amd/stoneyridge
diff --git a/src/mainboard/google/kahlee/variants/nuwani/include/variant/acpi/gpe.asl b/src/mainboard/google/kahlee/variants/nuwani/include/variant/acpi/gpe.asl
new file mode 100644
index 0000000..7a1e74b
--- /dev/null
+++ b/src/mainboard/google/kahlee/variants/nuwani/include/variant/acpi/gpe.asl
@@ -0,0 +1,16 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2020 Sage Electronic Engineering, 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/gpe.asl>
diff --git a/src/mainboard/google/kahlee/variants/nuwani/include/variant/acpi/mainboard.asl b/src/mainboard/google/kahlee/variants/nuwani/include/variant/acpi/mainboard.asl
new file mode 100644
index 0000000..acb906e
--- /dev/null
+++ b/src/mainboard/google/kahlee/variants/nuwani/include/variant/acpi/mainboard.asl
@@ -0,0 +1,17 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2020 Sage Electronic Engineering, 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/mainboard.asl>
+#include <baseboard/acpi/audio.asl>
diff --git a/src/mainboard/google/kahlee/variants/nuwani/include/variant/acpi/routing.asl b/src/mainboard/google/kahlee/variants/nuwani/include/variant/acpi/routing.asl
new file mode 100644
index 0000000..283e332
--- /dev/null
+++ b/src/mainboard/google/kahlee/variants/nuwani/include/variant/acpi/routing.asl
@@ -0,0 +1,16 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2020 Sage Electronic Engineering, 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/routing.asl>
diff --git a/src/mainboard/google/kahlee/variants/nuwani/include/variant/acpi/sleep.asl b/src/mainboard/google/kahlee/variants/nuwani/include/variant/acpi/sleep.asl
new file mode 100644
index 0000000..b69f063
--- /dev/null
+++ b/src/mainboard/google/kahlee/variants/nuwani/include/variant/acpi/sleep.asl
@@ -0,0 +1,16 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2020 Sage Electronic Engineering, 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/sleep.asl>
diff --git a/src/mainboard/google/kahlee/variants/nuwani/include/variant/acpi/thermal.asl b/src/mainboard/google/kahlee/variants/nuwani/include/variant/acpi/thermal.asl
new file mode 100644
index 0000000..56a4da4
--- /dev/null
+++ b/src/mainboard/google/kahlee/variants/nuwani/include/variant/acpi/thermal.asl
@@ -0,0 +1,16 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2020 Sage Electronic Engineering, 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/thermal.asl>
diff --git a/src/mainboard/google/kahlee/variants/nuwani/include/variant/ec.h b/src/mainboard/google/kahlee/variants/nuwani/include/variant/ec.h
new file mode 100644
index 0000000..4a63722
--- /dev/null
+++ b/src/mainboard/google/kahlee/variants/nuwani/include/variant/ec.h
@@ -0,0 +1,25 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2020 Google 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.
+ */
+
+#include <baseboard/ec.h>
+
+/* Enable Tablet switch */
+#define EC_ENABLE_TBMC_DEVICE
+
+/*
+ * Enable EC sync interrupt via GPIO controller, EC_SYNC_IRQ is defined in
+ * variant/gpio.h
+ */
+#define EC_ENABLE_SYNC_IRQ_GPIO
diff --git a/src/mainboard/google/kahlee/variants/nuwani/include/variant/gpio.h b/src/mainboard/google/kahlee/variants/nuwani/include/variant/gpio.h
new file mode 100644
index 0000000..ebd7c5b
--- /dev/null
+++ b/src/mainboard/google/kahlee/variants/nuwani/include/variant/gpio.h
@@ -0,0 +1,19 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2020 Google 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.
+ */
+
+#include <baseboard/gpio.h>
+
+/* EC sync irq is AGPIO 10 */
+#define EC_SYNC_IRQ	10
diff --git a/src/mainboard/google/kahlee/variants/nuwani/include/variant/thermal.h b/src/mainboard/google/kahlee/variants/nuwani/include/variant/thermal.h
new file mode 100644
index 0000000..1bb78ef
--- /dev/null
+++ b/src/mainboard/google/kahlee/variants/nuwani/include/variant/thermal.h
@@ -0,0 +1,38 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2014 Google Inc.
+ * Copyright (C) 2017 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.
+ */
+
+#ifndef THERMAL_H
+#define THERMAL_H
+
+/*
+ * Stoney Ridge Thermal Requirements 12 (6W)
+ * TDP (W) 6
+ * T die,max (°C) 95
+ * T ctl,max 85
+ * T die,lmt (default) 90
+ * T ctl,lmt (default) 80
+ */
+
+/* Control TDP Settings */
+#define CTL_TDP_SENSOR_ID		2	/* EC TIN2 */
+
+/* Temperature which OS will shutdown at */
+#define CRITICAL_TEMPERATURE		94
+
+/* Temperature which OS will throttle CPU */
+#define PASSIVE_TEMPERATURE		85
+
+#endif
diff --git a/src/mainboard/google/kahlee/variants/nuwani/mainboard.c b/src/mainboard/google/kahlee/variants/nuwani/mainboard.c
new file mode 100644
index 0000000..42dbe03
--- /dev/null
+++ b/src/mainboard/google/kahlee/variants/nuwani/mainboard.c
@@ -0,0 +1,126 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2020 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 <ec/google/chromeec/ec.h>
+#include <baseboard/variants.h>
+#include <boardid.h>
+#include <cbfs.h>
+#include <gpio.h>
+#include <smbios.h>
+#include <variant/gpio.h>
+#include <device/mmio.h>
+#include <device/pci.h>
+#include <device/pci_ops.h>
+#include <drivers/generic/bayhub/bh720.h>
+
+uint32_t sku_id(void)
+{
+	static int sku = -1;
+
+	if (sku == -1)
+		sku = google_chromeec_get_sku_id();
+
+	return sku;
+}
+
+uint8_t variant_board_sku(void)
+{
+	return sku_id();
+}
+
+void variant_mainboard_suspend_resume(void)
+{
+	/* Enable backlight - GPIO 133 active low */
+	gpio_set(GPIO_133, 0);
+}
+
+void board_bh720(struct device *dev)
+{
+	u32 sdbar;
+	u32 bh720_pcr_data;
+
+	sdbar = pci_read_config32(dev, PCI_BASE_ADDRESS_1);
+
+	/* Enable Memory Access Function */
+	write32((void *)(sdbar + BH720_MEM_ACCESS_EN), 0x40000000);
+	write32((void *)(sdbar + BH720_MEM_RW_DATA), 0x80000000);
+	write32((void *)(sdbar + BH720_MEM_RW_ADR), 0x800000D0);
+
+	/* Set EMMC VCCQ 1.8V PCR 0x308[4] */
+	write32((void *)(sdbar + BH720_MEM_RW_ADR),
+		BH720_MEM_RW_READ | BH720_PCR_EMMC_SETTING);
+	bh720_pcr_data = read32((void *)(sdbar + BH720_MEM_RW_DATA));
+	write32((void *)(sdbar + BH720_MEM_RW_DATA),
+		bh720_pcr_data | BH720_PCR_EMMC_SETTING_1_8V);
+	write32((void *)(sdbar + BH720_MEM_RW_ADR),
+		BH720_MEM_RW_WRITE | BH720_PCR_EMMC_SETTING);
+
+	/* Set Base clock to 200MHz(PCR 0x304[31:16] = 0x2510) */
+	write32((void *)(sdbar + BH720_MEM_RW_ADR),
+		BH720_MEM_RW_READ | BH720_PCR_DrvStrength_PLL);
+	bh720_pcr_data = read32((void *)(sdbar + BH720_MEM_RW_DATA));
+	bh720_pcr_data &= 0x0000FFFF;
+	bh720_pcr_data |= 0x2510 << 16;
+	write32((void *)(sdbar + BH720_MEM_RW_DATA), bh720_pcr_data);
+	write32((void *)(sdbar + BH720_MEM_RW_ADR),
+		BH720_MEM_RW_WRITE | BH720_PCR_DrvStrength_PLL);
+
+	/* Use PLL Base clock PCR 0x3E4[22] = 1 */
+	write32((void *)(sdbar + BH720_MEM_RW_ADR),
+		BH720_MEM_RW_READ | BH720_PCR_CSR);
+	bh720_pcr_data = read32((void *)(sdbar + BH720_MEM_RW_DATA));
+	write32((void *)(sdbar + BH720_MEM_RW_DATA),
+		bh720_pcr_data | BH720_PCR_CSR_EMMC_MODE_SEL);
+	write32((void *)(sdbar + BH720_MEM_RW_ADR),
+		BH720_MEM_RW_WRITE | BH720_PCR_CSR);
+
+	/* Disable Memory Access */
+	write32((void *)(sdbar + BH720_MEM_RW_DATA), 0x80000001);
+	write32((void *)(sdbar + BH720_MEM_RW_ADR), 0x800000D0);
+	write32((void *)(sdbar + BH720_MEM_ACCESS_EN), 0x80000000);
+
+	/* Tune VIH */
+	pci_write_config32(dev, BH720_PROTECT,
+		BH720_PROTECT_OFF | BH720_PROTECT_LOCK_OFF);
+	bh720_pcr_data = pci_read_config32(dev, BH720_PCR_DrvStrength_PLL);
+	bh720_pcr_data &= 0xFFFFFF00;
+	/* CLK = 3 and DAT = 2 */
+	bh720_pcr_data |= 0x35;
+	pci_write_config32(dev, BH720_PCR_DrvStrength_PLL, bh720_pcr_data);
+	pci_write_config32(dev, BH720_PROTECT,
+		BH720_PROTECT_ON | BH720_PROTECT_LOCK_ON);
+}
+
+
+const char *smbios_mainboard_manufacturer(void)
+{
+	static char oem_bin_data[11];
+	static const char *manuf;
+
+	if (!CONFIG(USE_OEM_BIN))
+		return CONFIG_MAINBOARD_SMBIOS_MANUFACTURER;
+
+	if (manuf)
+		return manuf;
+
+	if (cbfs_boot_load_file("oem.bin", oem_bin_data,
+					    sizeof(oem_bin_data) - 1,
+					    CBFS_TYPE_RAW))
+		manuf = &oem_bin_data[0];
+	else
+		manuf = CONFIG_MAINBOARD_SMBIOS_MANUFACTURER;
+
+	return manuf;
+}
diff --git a/src/mainboard/google/kahlee/variants/nuwani/spd/Makefile.inc b/src/mainboard/google/kahlee/variants/nuwani/spd/Makefile.inc
new file mode 100644
index 0000000..a2d0d2f
--- /dev/null
+++ b/src/mainboard/google/kahlee/variants/nuwani/spd/Makefile.inc
@@ -0,0 +1,34 @@
+##
+## This file is part of the coreboot project.
+##
+## Copyright (C) 2014 Google Inc.
+## Copyright (C) 2015 Intel Corporation.
+##
+## 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.
+##
+
+LIB_SPD_DEPS = $(foreach f, $(SPD_SOURCES), src/mainboard/$(MAINBOARDDIR)/spd/$(f).spd.hex)
+
+SPD_SOURCES =  hynix-H5AN8G6NAFR-UH		# 0b0000
+SPD_SOURCES += hynix-H5ANAG6NAMR-UH		# 0b0001
+SPD_SOURCES += micron-MT40A512M16JY-083E-B	# 0b0010
+SPD_SOURCES += micron-MT40A1G16KNR-075-E	# 0b0011
+SPD_SOURCES += samsung-K4A8G165WB-BCRC		# 0b0100
+SPD_SOURCES += samsung-K4AAG165WB-MCRC		# 0b0101
+SPD_SOURCES += micron-MT40A512M16LY-075-E	# 0b0110
+SPD_SOURCES += hynix-H5ANAG6NCMR-VKC		# 0b0111
+SPD_SOURCES += hynix-H5AN8G6NCJR-VKC		# 0b1000
+SPD_SOURCES += samsung-K4A8G165WC-BCTD		# 0b1001
+SPD_SOURCES += samsung-K4AAG165WB-MCTD		# 0b1010
+SPD_SOURCES += micron-MT40A512M16TB-062E-J	# 0b1011
+SPD_SOURCES += samsung-K4A8G165WC-BCWE		# 0b1100
+SPD_SOURCES += hynix-H5AN8G6NCJR-XNC		# 0b1101
+SPD_SOURCES += empty				# 0b1110
+SPD_SOURCES += empty				# 0b1111