Merge branch 'master' of git://git.denx.de/u-boot-x86

35 files changed, 773 insertions, 23 deletions

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 29d2307..29d1120 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -8,6 +8,9 @@ choice
 	prompt "Mainboard vendor"
 	default VENDOR_EMULATION
 
+config VENDOR_ADVANTECH
+	bool "advantech"
+
 config VENDOR_CONGATEC
 	bool "congatec"
 
@@ -29,6 +32,7 @@ config VENDOR_INTEL
 endchoice
 
 # board-specific options below
+source "board/advantech/Kconfig"
 source "board/congatec/Kconfig"
 source "board/coreboot/Kconfig"
 source "board/efi/Kconfig"
diff --git a/arch/x86/cpu/baytrail/Kconfig b/arch/x86/cpu/baytrail/Kconfig
index 407feb2..1c8ac37 100644
--- a/arch/x86/cpu/baytrail/Kconfig
+++ b/arch/x86/cpu/baytrail/Kconfig
@@ -7,3 +7,14 @@
 config INTEL_BAYTRAIL
 	bool
 	select HAVE_FSP if !EFI
+
+if INTEL_BAYTRAIL
+config INTERNAL_UART
+	bool "Enable the SoC integrated legacy UART"
+	help
+	  There is a legacy UART integrated into the Bay Trail SoC.
+	  A maximum baud rate of 115200 bps is supported. For this
+	  reason, it is recommended that the UART port be used for
+	  debug purposes only, eg: U-Boot console.
+
+endif
diff --git a/arch/x86/cpu/baytrail/acpi.c b/arch/x86/cpu/baytrail/acpi.c
index 5ee4868..fa92d88 100644
--- a/arch/x86/cpu/baytrail/acpi.c
+++ b/arch/x86/cpu/baytrail/acpi.c
@@ -5,10 +5,14 @@
  */
 
 #include <common.h>
+#include <cpu.h>
+#include <dm.h>
+#include <dm/uclass-internal.h>
 #include <asm/acpi_table.h>
 #include <asm/ioapic.h>
 #include <asm/mpspec.h>
 #include <asm/tables.h>
+#include <asm/arch/global_nvs.h>
 #include <asm/arch/iomap.h>
 
 void acpi_create_fadt(struct acpi_fadt *fadt, struct acpi_facs *facs,
@@ -161,3 +165,25 @@ u32 acpi_fill_madt(u32 current)
 
 	return current;
 }
+
+void acpi_create_gnvs(struct acpi_global_nvs *gnvs)
+{
+	struct udevice *dev;
+	int ret;
+
+	/* at least we have one processor */
+	gnvs->pcnt = 1;
+	/* override the processor count with actual number */
+	ret = uclass_find_first_device(UCLASS_CPU, &dev);
+	if (ret == 0 && dev != NULL) {
+		ret = cpu_get_count(dev);
+		if (ret > 0)
+			gnvs->pcnt = ret;
+	}
+
+	/* determine whether internal uart is on */
+	if (IS_ENABLED(CONFIG_INTERNAL_UART))
+		gnvs->iuart_en = 1;
+	else
+		gnvs->iuart_en = 0;
+}
diff --git a/arch/x86/cpu/ivybridge/sdram.c b/arch/x86/cpu/ivybridge/sdram.c
index 9d9f63d..e0b06b5 100644
--- a/arch/x86/cpu/ivybridge/sdram.c
+++ b/arch/x86/cpu/ivybridge/sdram.c
@@ -458,6 +458,11 @@ int dram_init(void)
 	struct udevice *dev, *me_dev;
 	int ret;
 
+	/* We need the pinctrl set up early */
+	ret = syscon_get_by_driver_data(X86_SYSCON_PINCONF, &dev);
+	if (ret)
+		return ret;
+
 	ret = uclass_first_device_err(UCLASS_NORTHBRIDGE, &dev);
 	if (ret)
 		return ret;
diff --git a/arch/x86/cpu/quark/acpi.c b/arch/x86/cpu/quark/acpi.c
index 8f69829..3968f7a 100644
--- a/arch/x86/cpu/quark/acpi.c
+++ b/arch/x86/cpu/quark/acpi.c
@@ -9,6 +9,7 @@
 #include <asm/ioapic.h>
 #include <asm/mpspec.h>
 #include <asm/tables.h>
+#include <asm/arch/global_nvs.h>
 #include <asm/arch/iomap.h>
 
 void acpi_create_fadt(struct acpi_fadt *fadt, struct acpi_facs *facs,
@@ -161,3 +162,9 @@ u32 acpi_fill_madt(u32 current)
 
 	return current;
 }
+
+void acpi_create_gnvs(struct acpi_global_nvs *gnvs)
+{
+	/* quark is a uni-processor */
+	gnvs->pcnt = 1;
+}
diff --git a/arch/x86/dts/Makefile b/arch/x86/dts/Makefile
index 23156bb..4f07f41 100644
--- a/arch/x86/dts/Makefile
+++ b/arch/x86/dts/Makefile
@@ -14,7 +14,8 @@ dtb-y += bayleybay.dtb \
 	minnowmax.dtb \
 	qemu-x86_i440fx.dtb \
 	qemu-x86_q35.dtb \
-	broadwell_som-6896.dtb
+	broadwell_som-6896.dtb \
+	baytrail_som-db5800-som-6867.dtb
 
 targets += $(dtb-y)
 
diff --git a/arch/x86/dts/baytrail_som-db5800-som-6867.dts b/arch/x86/dts/baytrail_som-db5800-som-6867.dts
new file mode 100644
index 0000000..64e2e52
--- /dev/null
+++ b/arch/x86/dts/baytrail_som-db5800-som-6867.dts
@@ -0,0 +1,289 @@
+/*
+ * Copyright (C) 2014, Bin Meng <bmeng.cn@gmail.com>
+ * Copyright (C) 2016, George McCollister <george.mccollister@gmail.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/gpio/x86-gpio.h>
+#include <dt-bindings/interrupt-router/intel-irq.h>
+
+/include/ "skeleton.dtsi"
+/include/ "serial.dtsi"
+/include/ "rtc.dtsi"
+/include/ "tsc_timer.dtsi"
+
+/ {
+	model = "Advantech SOM-DB5800-SOM-6867";
+	compatible = "advantech,som-db5800-som-6867", "intel,baytrail";
+
+	aliases {
+		serial0 = &serial;
+		spi0 = &spi;
+	};
+
+	config {
+		silent_console = <0>;
+	};
+
+	pch_pinctrl {
+		compatible = "intel,x86-pinctrl";
+		reg = <0 0>;
+
+		/* HDA_RSTB */
+		soc_gpio_s0_8@0 {
+			pad-offset = <0x220>;
+			mode-func = <2>;
+		};
+
+		/* HDA_SYNC */
+		soc_gpio_s0_9@0 {
+			pad-offset = <0x250>;
+			mode-func = <2>;
+			pull-assign = <1>;
+		};
+
+		/* HDA_CLK */
+		soc_gpio_s0_10@0 {
+			pad-offset = <0x240>;
+			mode-func = <2>;
+		};
+
+		/* HDA_SDO */
+		soc_gpio_s0_11@0 {
+			pad-offset = <0x260>;
+			mode-func = <2>;
+			pull-assign = <1>;
+		};
+
+		/* HDA_SDI0 */
+		soc_gpio_s0_12@0 {
+			pad-offset = <0x270>;
+			mode-func = <2>;
+		};
+	};
+
+	chosen {
+		stdout-path = "/serial";
+	};
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu@0 {
+			device_type = "cpu";
+			compatible = "intel,baytrail-cpu";
+			reg = <0>;
+			intel,apic-id = <0>;
+		};
+
+		cpu@1 {
+			device_type = "cpu";
+			compatible = "intel,baytrail-cpu";
+			reg = <1>;
+			intel,apic-id = <2>;
+		};
+
+		cpu@2 {
+			device_type = "cpu";
+			compatible = "intel,baytrail-cpu";
+			reg = <2>;
+			intel,apic-id = <4>;
+		};
+
+		cpu@3 {
+			device_type = "cpu";
+			compatible = "intel,baytrail-cpu";
+			reg = <3>;
+			intel,apic-id = <6>;
+		};
+
+	};
+
+	pci {
+		compatible = "intel,pci-baytrail", "pci-x86";
+		#address-cells = <3>;
+		#size-cells = <2>;
+		u-boot,dm-pre-reloc;
+		ranges = <0x02000000 0x0 0x80000000 0x80000000 0 0x40000000
+			  0x42000000 0x0 0xc0000000 0xc0000000 0 0x20000000
+			  0x01000000 0x0 0x2000 0x2000 0 0xe000>;
+
+		pch@1f,0 {
+			reg = <0x0000f800 0 0 0 0>;
+			compatible = "pci8086,0f1c", "intel,pch9";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			irq-router {
+				compatible = "intel,irq-router";
+				intel,pirq-config = "ibase";
+				intel,ibase-offset = <0x50>;
+				intel,actl-addr = <0>;
+				intel,pirq-link = <8 8>;
+				intel,pirq-mask = <0xdee0>;
+				intel,pirq-routing = <
+					/* BayTrail PCI devices */
+					PCI_BDF(0, 2, 0) INTA PIRQA
+					PCI_BDF(0, 3, 0) INTA PIRQA
+					PCI_BDF(0, 16, 0) INTA PIRQA
+					PCI_BDF(0, 17, 0) INTA PIRQA
+					PCI_BDF(0, 18, 0) INTA PIRQA
+					PCI_BDF(0, 19, 0) INTA PIRQA
+					PCI_BDF(0, 20, 0) INTA PIRQA
+					PCI_BDF(0, 21, 0) INTA PIRQA
+					PCI_BDF(0, 22, 0) INTA PIRQA
+					PCI_BDF(0, 23, 0) INTA PIRQA
+					PCI_BDF(0, 24, 0) INTA PIRQA
+					PCI_BDF(0, 24, 1) INTC PIRQC
+					PCI_BDF(0, 24, 2) INTD PIRQD
+					PCI_BDF(0, 24, 3) INTB PIRQB
+					PCI_BDF(0, 24, 4) INTA PIRQA
+					PCI_BDF(0, 24, 5) INTC PIRQC
+					PCI_BDF(0, 24, 6) INTD PIRQD
+					PCI_BDF(0, 24, 7) INTB PIRQB
+					PCI_BDF(0, 26, 0) INTA PIRQA
+					PCI_BDF(0, 27, 0) INTA PIRQA
+					PCI_BDF(0, 28, 0) INTA PIRQA
+					PCI_BDF(0, 28, 1) INTB PIRQB
+					PCI_BDF(0, 28, 2) INTC PIRQC
+					PCI_BDF(0, 28, 3) INTD PIRQD
+					PCI_BDF(0, 29, 0) INTA PIRQA
+					PCI_BDF(0, 30, 0) INTA PIRQA
+					PCI_BDF(0, 30, 1) INTD PIRQD
+					PCI_BDF(0, 30, 2) INTB PIRQB
+					PCI_BDF(0, 30, 3) INTC PIRQC
+					PCI_BDF(0, 30, 4) INTD PIRQD
+					PCI_BDF(0, 30, 5) INTB PIRQB
+					PCI_BDF(0, 31, 3) INTB PIRQB
+
+					/*
+					 * PCIe root ports downstream
+					 * interrupts
+					 */
+					PCI_BDF(1, 0, 0) INTA PIRQA
+					PCI_BDF(1, 0, 0) INTB PIRQB
+					PCI_BDF(1, 0, 0) INTC PIRQC
+					PCI_BDF(1, 0, 0) INTD PIRQD
+					PCI_BDF(2, 0, 0) INTA PIRQB
+					PCI_BDF(2, 0, 0) INTB PIRQC
+					PCI_BDF(2, 0, 0) INTC PIRQD
+					PCI_BDF(2, 0, 0) INTD PIRQA
+					PCI_BDF(3, 0, 0) INTA PIRQC
+					PCI_BDF(3, 0, 0) INTB PIRQD
+					PCI_BDF(3, 0, 0) INTC PIRQA
+					PCI_BDF(3, 0, 0) INTD PIRQB
+					PCI_BDF(4, 0, 0) INTA PIRQD
+					PCI_BDF(4, 0, 0) INTB PIRQA
+					PCI_BDF(4, 0, 0) INTC PIRQB
+					PCI_BDF(4, 0, 0) INTD PIRQC
+				>;
+			};
+
+			spi: spi {
+				#address-cells = <1>;
+				#size-cells = <0>;
+				compatible = "intel,ich9-spi";
+				spi-flash@0 {
+					#address-cells = <1>;
+					#size-cells = <1>;
+					reg = <0>;
+					compatible = "macronix,mx25l6405d",
+						"spi-flash";
+					memory-map = <0xff800000 0x00800000>;
+					rw-mrc-cache {
+						label = "rw-mrc-cache";
+						reg = <0x006f0000 0x00010000>;
+					};
+				};
+			};
+
+			gpioa {
+				compatible = "intel,ich6-gpio";
+				u-boot,dm-pre-reloc;
+				reg = <0 0x20>;
+				bank-name = "A";
+			};
+
+			gpiob {
+				compatible = "intel,ich6-gpio";
+				u-boot,dm-pre-reloc;
+				reg = <0x20 0x20>;
+				bank-name = "B";
+			};
+
+			gpioc {
+				compatible = "intel,ich6-gpio";
+				u-boot,dm-pre-reloc;
+				reg = <0x40 0x20>;
+				bank-name = "C";
+			};
+
+			gpiod {
+				compatible = "intel,ich6-gpio";
+				u-boot,dm-pre-reloc;
+				reg = <0x60 0x20>;
+				bank-name = "D";
+			};
+
+			gpioe {
+				compatible = "intel,ich6-gpio";
+				u-boot,dm-pre-reloc;
+				reg = <0x80 0x20>;
+				bank-name = "E";
+			};
+
+			gpiof {
+				compatible = "intel,ich6-gpio";
+				u-boot,dm-pre-reloc;
+				reg = <0xA0 0x20>;
+				bank-name = "F";
+			};
+		};
+	};
+
+	fsp {
+		compatible = "intel,baytrail-fsp";
+		fsp,mrc-init-tseg-size = <0>;
+		fsp,mrc-init-mmio-size = <0x800>;
+		fsp,mrc-init-spd-addr1 = <0xa0>;
+		fsp,mrc-init-spd-addr2 = <0xa2>;
+		fsp,enable-spi;
+		fsp,enable-sata;
+		fsp,sata-mode = <1>;
+		fsp,enable-azalia;
+		fsp,lpss-sio-enable-pci-mode;
+		fsp,enable-dma0;
+		fsp,enable-dma1;
+		fsp,enable-i2c0;
+		fsp,enable-i2c1;
+		fsp,enable-i2c2;
+		fsp,enable-i2c3;
+		fsp,enable-i2c4;
+		fsp,enable-i2c5;
+		fsp,enable-i2c6;
+		fsp,enable-pwm0;
+		fsp,enable-pwm1;
+		fsp,igd-dvmt50-pre-alloc = <2>;
+		fsp,aperture-size = <2>;
+		fsp,gtt-size = <2>;
+		fsp,scc-enable-pci-mode;
+		fsp,os-selection = <4>;
+		fsp,enable-igd;
+		fsp,serial-debug-port-address = <0x3f8>;
+		fsp,serial-debug-port-type = <1>;
+	};
+
+	microcode {
+		update@0 {
+#include "microcode/m0130673325.dtsi"
+		};
+		update@1 {
+#include "microcode/m0130679907.dtsi"
+		};
+	};
+
+};
diff --git a/arch/x86/include/asm/acpi/global_nvs.h b/arch/x86/include/asm/acpi/global_nvs.h
new file mode 100644
index 0000000..7f2ffd4
--- /dev/null
+++ b/arch/x86/include/asm/acpi/global_nvs.h
@@ -0,0 +1,19 @@
+/*
+ * Copyright (C) 2016, Bin Meng <bmeng.cn@gmail.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef _ACPI_GNVS_H_
+#define _ACPI_GNVS_H_
+
+/*
+ * This file provides two ACPI global NVS macros: ACPI_GNVS_ADDR and
+ * ACPI_GNVS_SIZE. They are to be used in platform's global_nvs.asl file
+ * to declare the GNVS OperationRegion, as well as write_acpi_tables()
+ * for the GNVS address runtime fix up.
+ */
+#define ACPI_GNVS_ADDR	0xdeadbeef
+#define ACPI_GNVS_SIZE	0x100
+
+#endif /* _ACPI_GNVS_H_ */
diff --git a/arch/x86/include/asm/acpi_table.h b/arch/x86/include/asm/acpi_table.h
index 56aa282..caff4d8 100644
--- a/arch/x86/include/asm/acpi_table.h
+++ b/arch/x86/include/asm/acpi_table.h
@@ -299,6 +299,9 @@ struct acpi_mcfg_mmconfig {
 /* PM1_CNT bit defines */
 #define PM1_CNT_SCI_EN		(1 << 0)
 
+/* ACPI global NVS structure */
+struct acpi_global_nvs;
+
 /* These can be used by the target port */
 
 void acpi_fill_header(struct acpi_table_header *header, char *signature);
@@ -312,4 +315,5 @@ int acpi_create_madt_irqoverride(struct acpi_madt_irqoverride *irqoverride,
 int acpi_create_madt_lapic_nmi(struct acpi_madt_lapic_nmi *lapic_nmi,
 			       u8 cpu, u16 flags, u8 lint);
 u32 acpi_fill_madt(u32 current);
+void acpi_create_gnvs(struct acpi_global_nvs *gnvs);
 u32 write_acpi_tables(u32 start);
diff --git a/arch/x86/include/asm/arch-baytrail/acpi/global_nvs.asl b/arch/x86/include/asm/arch-baytrail/acpi/global_nvs.asl
new file mode 100644
index 0000000..a28d4df
--- /dev/null
+++ b/arch/x86/include/asm/arch-baytrail/acpi/global_nvs.asl
@@ -0,0 +1,15 @@
+/*
+ * Copyright (C) 2016 Bin Meng <bmeng.cn@gmail.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <asm/acpi/global_nvs.h>
+
+OperationRegion(GNVS, SystemMemory, ACPI_GNVS_ADDR, ACPI_GNVS_SIZE)
+Field(GNVS, ByteAcc, NoLock, Preserve)
+{
+	Offset (0x00),
+	PCNT, 8,	/* processor count */
+	IURE, 8,	/* internal UART enabled */
+}
diff --git a/arch/x86/include/asm/arch-baytrail/acpi/lpc.asl b/arch/x86/include/asm/arch-baytrail/acpi/lpc.asl
index 22f0d68..fe34d32 100644
--- a/arch/x86/include/asm/arch-baytrail/acpi/lpc.asl
+++ b/arch/x86/include/asm/arch-baytrail/acpi/lpc.asl
@@ -119,17 +119,14 @@ Device (LPCB)
 
 		Method(_STA, 0, Serialized)
 		{
-			/*
-			 * TODO:
-			 *
-			 * Need to hide the internal UART depending on whether
-			 * internal UART is enabled or not so that external
-			 * SuperIO UART can be exposed to system.
-			 */
-			Store(1, UI3E)
-			Store(1, UI4E)
-			Store(1, C1EN)
-			Return (STA_VISIBLE)
+			If (LEqual(IURE, 1)) {
+				Store(1, UI3E)
+				Store(1, UI4E)
+				Store(1, C1EN)
+				Return (STA_VISIBLE)
+			} Else {
+				Return (STA_MISSING)
+			}
 
 		}
 
diff --git a/arch/x86/include/asm/arch-baytrail/acpi/platform.asl b/arch/x86/include/asm/arch-baytrail/acpi/platform.asl
index 6bc82ec..a80d2c0 100644
--- a/arch/x86/include/asm/arch-baytrail/acpi/platform.asl
+++ b/arch/x86/include/asm/arch-baytrail/acpi/platform.asl
@@ -22,6 +22,9 @@ Method(_WAK, 1)
 	Return (Package() {0, 0})
 }
 
+/* ACPI global NVS */
+#include "global_nvs.asl"
+
 /* TODO: add CPU ASL support */
 
 Scope (\_SB)
diff --git a/arch/x86/include/asm/arch-baytrail/global_nvs.h b/arch/x86/include/asm/arch-baytrail/global_nvs.h
new file mode 100644
index 0000000..56e3626
--- /dev/null
+++ b/arch/x86/include/asm/arch-baytrail/global_nvs.h
@@ -0,0 +1,21 @@
+/*
+ * Copyright (C) 2016, Bin Meng <bmeng.cn@gmail.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef _GLOBAL_NVS_H_
+#define _GLOBAL_NVS_H_
+
+struct __packed acpi_global_nvs {
+	u8	pcnt;		/* processor count */
+	u8	iuart_en;	/* internal UART enabled */
+
+	/*
+	 * Add padding so sizeof(struct acpi_global_nvs) == 0x100.
+	 * This must match the size defined in the global_nvs.asl.
+	 */
+	u8	rsvd[254];
+};
+
+#endif /* _GLOBAL_NVS_H_ */
diff --git a/arch/x86/include/asm/arch-quark/acpi/global_nvs.asl b/arch/x86/include/asm/arch-quark/acpi/global_nvs.asl
new file mode 100644
index 0000000..6f0435e
--- /dev/null
+++ b/arch/x86/include/asm/arch-quark/acpi/global_nvs.asl
@@ -0,0 +1,14 @@
+/*
+ * Copyright (C) 2016 Bin Meng <bmeng.cn@gmail.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <asm/acpi/global_nvs.h>
+
+OperationRegion(GNVS, SystemMemory, ACPI_GNVS_ADDR, ACPI_GNVS_SIZE)
+Field(GNVS, ByteAcc, NoLock, Preserve)
+{
+	Offset (0x00),
+	PCNT, 8,	/* processor count */
+}
diff --git a/arch/x86/include/asm/arch-quark/acpi/platform.asl b/arch/x86/include/asm/arch-quark/acpi/platform.asl
index bd72842..1ecf153 100644
--- a/arch/x86/include/asm/arch-quark/acpi/platform.asl
+++ b/arch/x86/include/asm/arch-quark/acpi/platform.asl
@@ -22,6 +22,9 @@ Method(_WAK, 1)
 	Return (Package() {0, 0})
 }
 
+/* ACPI global NVS */
+#include "global_nvs.asl"
+
 /* TODO: add CPU ASL support */
 
 Scope (\_SB)
diff --git a/arch/x86/include/asm/arch-quark/global_nvs.h b/arch/x86/include/asm/arch-quark/global_nvs.h
new file mode 100644
index 0000000..0231da0
--- /dev/null
+++ b/arch/x86/include/asm/arch-quark/global_nvs.h
@@ -0,0 +1,20 @@
+/*
+ * Copyright (C) 2016, Bin Meng <bmeng.cn@gmail.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef _GLOBAL_NVS_H_
+#define _GLOBAL_NVS_H_
+
+struct __packed acpi_global_nvs {
+	u8	pcnt;		/* processor count */
+
+	/*
+	 * Add padding so sizeof(struct acpi_global_nvs) == 0x100.
+	 * This must match the size defined in the global_nvs.asl.
+	 */
+	u8	rsvd[255];
+};
+
+#endif /* _GLOBAL_NVS_H_ */
diff --git a/arch/x86/lib/acpi_table.c b/arch/x86/lib/acpi_table.c
index bb71286..7001e8b 100644
--- a/arch/x86/lib/acpi_table.c
+++ b/arch/x86/lib/acpi_table.c
@@ -11,10 +11,12 @@
 #include <cpu.h>
 #include <dm.h>
 #include <dm/uclass-internal.h>
+#include <asm/acpi/global_nvs.h>
 #include <asm/acpi_table.h>
 #include <asm/io.h>
 #include <asm/lapic.h>
 #include <asm/tables.h>
+#include <asm/arch/global_nvs.h>
 
 /*
  * IASL compiles the dsdt entries and writes the hex values
@@ -336,6 +338,7 @@ u32 write_acpi_tables(u32 start)
 	struct acpi_fadt *fadt;
 	struct acpi_mcfg *mcfg;
 	struct acpi_madt *madt;
+	int i;
 
 	current = start;
 
@@ -383,6 +386,25 @@ u32 write_acpi_tables(u32 start)
 	current += dsdt->length - sizeof(struct acpi_table_header);
 	current = ALIGN(current, 16);
 
+	/* Pack GNVS into the ACPI table area */
+	for (i = 0; i < dsdt->length; i++) {
+		u32 *gnvs = (u32 *)((u32)dsdt + i);
+		if (*gnvs == ACPI_GNVS_ADDR) {
+			debug("Fix up global NVS in DSDT to 0x%08x\n", current);
+			*gnvs = current;
+			break;
+		}
+	}
+
+	/* Update DSDT checksum since we patched the GNVS address */
+	dsdt->checksum = 0;
+	dsdt->checksum = table_compute_checksum((void *)dsdt, dsdt->length);
+
+	/* Fill in platform-specific global NVS variables */
+	acpi_create_gnvs((struct acpi_global_nvs *)current);
+	current += sizeof(struct acpi_global_nvs);
+	current = ALIGN(current, 16);
+
 	debug("ACPI:    * FADT\n");
 	fadt = (struct acpi_fadt *)current;
 	current += sizeof(struct acpi_fadt);
diff --git a/arch/x86/lib/fsp/fsp_support.c b/arch/x86/lib/fsp/fsp_support.c
index b05dced..a480361 100644
--- a/arch/x86/lib/fsp/fsp_support.c
+++ b/arch/x86/lib/fsp/fsp_support.c
@@ -110,7 +110,7 @@ void fsp_init(u32 stack_top, u32 boot_mode, void *nvs_buf)
 	struct upd_region *fsp_upd;
 #endif
 
-#ifdef CONFIG_DEBUG_UART
+#ifdef CONFIG_INTERNAL_UART
 	setup_internal_uart(1);
 #endif
 
diff --git a/board/advantech/Kconfig b/board/advantech/Kconfig
new file mode 100644
index 0000000..a8d4969
--- /dev/null
+++ b/board/advantech/Kconfig
@@ -0,0 +1,28 @@
+if VENDOR_ADVANTECH
+
+choice
+	prompt "Mainboard model"
+	optional
+
+config TARGET_SOM_DB5800_SOM_6867
+	bool "Advantech SOM-DB5800 & SOM-6867"
+	help
+	  Advantech SOM-DB5800 COM Express development board with SOM-6867
+	  installed.
+
+	  SOM-6867 is a COM Express Type 6 Compact Module with either an Intel
+	  Atom E3845 or Celeron N2920 processor.
+
+	  SOM-DB5800 is a COM Express Development board with:
+	    10/100/1000 Ethernet
+	    PCIe slots
+	    4x USB ports
+	    HDMI/DisplayPort/DVI, LVDS, VGA
+	    SATA ports
+	    ALC892 HD Audio Codec
+
+endchoice
+
+source "board/advantech/som-db5800-som-6867/Kconfig"
+
+endif
diff --git a/board/advantech/som-db5800-som-6867/.gitignore b/board/advantech/som-db5800-som-6867/.gitignore
new file mode 100644
index 0000000..6eb8a54
--- /dev/null
+++ b/board/advantech/som-db5800-som-6867/.gitignore
@@ -0,0 +1,3 @@
+dsdt.aml
+dsdt.asl.tmp
+dsdt.c
diff --git a/board/advantech/som-db5800-som-6867/Kconfig b/board/advantech/som-db5800-som-6867/Kconfig
new file mode 100644
index 0000000..f6f3748
--- /dev/null
+++ b/board/advantech/som-db5800-som-6867/Kconfig
@@ -0,0 +1,28 @@
+if TARGET_SOM_DB5800_SOM_6867
+
+config SYS_BOARD
+	default "som-db5800-som-6867"
+
+config SYS_VENDOR
+	default "advantech"
+
+config SYS_SOC
+	default "baytrail"
+
+config SYS_CONFIG_NAME
+	default "som-db5800-som-6867"
+
+config SYS_TEXT_BASE
+	default 0xfff00000 if !EFI_STUB
+	default 0x01110000 if EFI_STUB
+
+config BOARD_SPECIFIC_OPTIONS # dummy
+	def_bool y
+	select X86_RESET_VECTOR if !EFI_STUB
+	select INTEL_BAYTRAIL
+	select BOARD_ROMSIZE_KB_8192
+
+config PCIE_ECAM_BASE
+	default 0xe0000000
+
+endif
diff --git a/board/advantech/som-db5800-som-6867/MAINTAINERS b/board/advantech/som-db5800-som-6867/MAINTAINERS
new file mode 100644
index 0000000..92989bf
--- /dev/null
+++ b/board/advantech/som-db5800-som-6867/MAINTAINERS
@@ -0,0 +1,7 @@
+Advantech SOM-DB5800-SOM-6867
+M:	George McCollister <george.mccollister@gmail.com>
+S:	Maintained
+F:	board/advantech/som-db5800-som-6867
+F:	include/configs/som-db5800-som-6867.h
+F:	configs/som-db5800-som-6867_defconfig
+F:	arch/x86/dts/baytrail_som-db5800-som-6867.dts
diff --git a/board/advantech/som-db5800-som-6867/Makefile b/board/advantech/som-db5800-som-6867/Makefile
new file mode 100644
index 0000000..9837aa0
--- /dev/null
+++ b/board/advantech/som-db5800-som-6867/Makefile
@@ -0,0 +1,8 @@
+#
+# Copyright (C) 2015, Google, Inc
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y	+= som-db5800-som-6867.o start.o
+obj-$(CONFIG_GENERATE_ACPI_TABLE) += dsdt.o
diff --git a/board/advantech/som-db5800-som-6867/acpi/mainboard.asl b/board/advantech/som-db5800-som-6867/acpi/mainboard.asl
new file mode 100644
index 0000000..21785ea
--- /dev/null
+++ b/board/advantech/som-db5800-som-6867/acpi/mainboard.asl
@@ -0,0 +1,11 @@
+/*
+ * Copyright (C) 2016, Bin Meng <bmeng.cn@gmail.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+/* Power Button */
+Device (PWRB)
+{
+	Name(_HID, EISAID("PNP0C0C"))
+}
diff --git a/board/advantech/som-db5800-som-6867/dsdt.asl b/board/advantech/som-db5800-som-6867/dsdt.asl
new file mode 100644
index 0000000..6042011
--- /dev/null
+++ b/board/advantech/som-db5800-som-6867/dsdt.asl
@@ -0,0 +1,14 @@
+/*
+ * Copyright (C) 2016, Bin Meng <bmeng.cn@gmail.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+DefinitionBlock("dsdt.aml", "DSDT", 2, "U-BOOT", "U-BOOTBL", 0x00010000)
+{
+	/* platform specific */
+	#include <asm/arch/acpi/platform.asl>
+
+	/* board specific */
+	#include "acpi/mainboard.asl"
+}
diff --git a/board/advantech/som-db5800-som-6867/som-db5800-som-6867.c b/board/advantech/som-db5800-som-6867/som-db5800-som-6867.c
new file mode 100644
index 0000000..5bed2c1
--- /dev/null
+++ b/board/advantech/som-db5800-som-6867/som-db5800-som-6867.c
@@ -0,0 +1,24 @@
+/*
+ * Copyright (C) 2016 Stefan Roese <sr@denx.de>
+ * Copyright (C) 2016 George McCollister <george.mccollister@gmail.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+
+int board_early_init_f(void)
+{
+	/*
+	 * The FSP enables the BayTrail internal legacy UART (again).
+	 * Disable it again, so that the one on the EC can be used.
+	 */
+	setup_internal_uart(0);
+
+	return 0;
+}
+
+int arch_early_init_r(void)
+{
+	return 0;
+}
diff --git a/board/advantech/som-db5800-som-6867/start.S b/board/advantech/som-db5800-som-6867/start.S
new file mode 100644
index 0000000..2c941a4
--- /dev/null
+++ b/board/advantech/som-db5800-som-6867/start.S
@@ -0,0 +1,9 @@
+/*
+ * Copyright (C) 2015, Google, Inc
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+.globl early_board_init
+early_board_init:
+	jmp	early_board_init_ret
diff --git a/board/congatec/conga-qeval20-qa3-e3845/conga-qeval20-qa3.c b/board/congatec/conga-qeval20-qa3-e3845/conga-qeval20-qa3.c
index 6a946d5..737e610 100644
--- a/board/congatec/conga-qeval20-qa3-e3845/conga-qeval20-qa3.c
+++ b/board/congatec/conga-qeval20-qa3-e3845/conga-qeval20-qa3.c
@@ -12,6 +12,7 @@
 
 int board_early_init_f(void)
 {
+#ifndef CONFIG_INTERNAL_UART
 	/*
 	 * The FSP enables the BayTrail internal legacy UART (again).
 	 * Disable it again, so that the Winbond one can be used.
@@ -21,6 +22,7 @@ int board_early_init_f(void)
 	/* Enable the legacy UART in the Winbond W83627 Super IO chip */
 	winbond_enable_serial(PNP_DEV(WINBOND_IO_PORT, W83627DHG_SP1),
 			      UART0_BASE, UART0_IRQ);
+#endif
 
 	return 0;
 }
diff --git a/configs/bayleybay_defconfig b/configs/bayleybay_defconfig
index 9f1d7fb..0a71bb8 100644
--- a/configs/bayleybay_defconfig
+++ b/configs/bayleybay_defconfig
@@ -2,6 +2,7 @@ CONFIG_X86=y
 CONFIG_VENDOR_INTEL=y
 CONFIG_DEFAULT_DEVICE_TREE="bayleybay"
 CONFIG_TARGET_BAYLEYBAY=y
+CONFIG_INTERNAL_UART=y
 CONFIG_HAVE_INTEL_ME=y
 CONFIG_ENABLE_MRC_CACHE=y
 CONFIG_SMP=y
diff --git a/configs/conga-qeval20-qa3-e3845-internal-uart_defconfig b/configs/conga-qeval20-qa3-e3845-internal-uart_defconfig
new file mode 100644
index 0000000..26f83ba
--- /dev/null
+++ b/configs/conga-qeval20-qa3-e3845-internal-uart_defconfig
@@ -0,0 +1,63 @@
+CONFIG_X86=y
+CONFIG_VENDOR_CONGATEC=y
+CONFIG_TARGET_CONGA_QEVAL20_QA3_E3845=y
+CONFIG_DEFAULT_DEVICE_TREE="conga-qeval20-qa3-e3845"
+CONFIG_INTERNAL_UART=y
+CONFIG_HAVE_INTEL_ME=y
+CONFIG_ENABLE_MRC_CACHE=y
+CONFIG_SMP=y
+CONFIG_HAVE_VGA_BIOS=y
+CONFIG_GENERATE_PIRQ_TABLE=y
+CONFIG_GENERATE_MP_TABLE=y
+CONFIG_GENERATE_ACPI_TABLE=y
+CONFIG_SEABIOS=y
+CONFIG_FIT=y
+CONFIG_FIT_SIGNATURE=y
+CONFIG_BOOTSTAGE=y
+CONFIG_BOOTSTAGE_REPORT=y
+CONFIG_HUSH_PARSER=y
+CONFIG_CMD_CPU=y
+# CONFIG_CMD_IMLS is not set
+# CONFIG_CMD_FLASH is not set
+CONFIG_CMD_MMC=y
+CONFIG_CMD_SF=y
+CONFIG_CMD_SPI=y
+CONFIG_CMD_USB=y
+CONFIG_CMD_GPIO=y
+# CONFIG_CMD_SETEXPR is not set
+CONFIG_CMD_DHCP=y
+# CONFIG_CMD_NFS is not set
+CONFIG_CMD_PING=y
+CONFIG_CMD_TIME=y
+CONFIG_CMD_BOOTSTAGE=y
+CONFIG_CMD_EXT2=y
+CONFIG_CMD_EXT4=y
+CONFIG_CMD_EXT4_WRITE=y
+CONFIG_CMD_FAT=y
+CONFIG_CMD_FS_GENERIC=y
+CONFIG_OF_CONTROL=y
+CONFIG_REGMAP=y
+CONFIG_SYSCON=y
+CONFIG_CPU=y
+CONFIG_WINBOND_W83627=y
+CONFIG_SPI_FLASH=y
+CONFIG_SPI_FLASH_GIGADEVICE=y
+CONFIG_SPI_FLASH_MACRONIX=y
+CONFIG_SPI_FLASH_STMICRO=y
+CONFIG_SPI_FLASH_WINBOND=y
+CONFIG_DM_ETH=y
+CONFIG_E1000=y
+CONFIG_DM_PCI=y
+CONFIG_DM_RTC=y
+CONFIG_DEBUG_UART=y
+CONFIG_DEBUG_UART_BASE=0x3f8
+CONFIG_DEBUG_UART_CLOCK=1843200
+CONFIG_SYS_NS16550=y
+CONFIG_ICH_SPI=y
+CONFIG_TIMER=y
+CONFIG_USB=y
+CONFIG_DM_USB=y
+CONFIG_VIDEO_VESA=y
+CONFIG_FRAMEBUFFER_SET_VESA_MODE=y
+CONFIG_FRAMEBUFFER_VESA_MODE_114=y
+CONFIG_USE_PRIVATE_LIBGCC=y
diff --git a/configs/minnowmax_defconfig b/configs/minnowmax_defconfig
index 28b837d..ba2b7dc 100644
--- a/configs/minnowmax_defconfig
+++ b/configs/minnowmax_defconfig
@@ -2,6 +2,7 @@ CONFIG_X86=y
 CONFIG_VENDOR_INTEL=y
 CONFIG_DEFAULT_DEVICE_TREE="minnowmax"
 CONFIG_TARGET_MINNOWMAX=y
+CONFIG_INTERNAL_UART=y
 CONFIG_HAVE_INTEL_ME=y
 CONFIG_ENABLE_MRC_CACHE=y
 CONFIG_SMP=y
diff --git a/configs/som-db5800-som-6867_defconfig b/configs/som-db5800-som-6867_defconfig
new file mode 100644
index 0000000..30e093b
--- /dev/null
+++ b/configs/som-db5800-som-6867_defconfig
@@ -0,0 +1,61 @@
+CONFIG_X86=y
+CONFIG_VENDOR_ADVANTECH=y
+CONFIG_DEFAULT_DEVICE_TREE="baytrail_som-db5800-som-6867"
+CONFIG_TARGET_SOM_DB5800_SOM_6867=y
+CONFIG_HAVE_INTEL_ME=y
+CONFIG_ENABLE_MRC_CACHE=y
+CONFIG_SMP=y
+CONFIG_HAVE_VGA_BIOS=y
+CONFIG_GENERATE_PIRQ_TABLE=y
+CONFIG_GENERATE_MP_TABLE=y
+CONFIG_GENERATE_ACPI_TABLE=y
+CONFIG_SEABIOS=y
+CONFIG_FIT=y
+CONFIG_FIT_SIGNATURE=y
+CONFIG_BOOTSTAGE=y
+CONFIG_BOOTSTAGE_REPORT=y
+CONFIG_HUSH_PARSER=y
+CONFIG_CMD_CPU=y
+# CONFIG_CMD_IMLS is not set
+# CONFIG_CMD_FLASH is not set
+# CONFIG_CMD_MMC is not set
+CONFIG_CMD_SF=y
+CONFIG_CMD_SPI=y
+CONFIG_CMD_USB=y
+CONFIG_CMD_GPIO=y
+# CONFIG_CMD_SETEXPR is not set
+CONFIG_CMD_DHCP=y
+# CONFIG_CMD_NFS is not set
+CONFIG_CMD_PING=y
+CONFIG_CMD_TIME=y
+CONFIG_CMD_BOOTSTAGE=y
+CONFIG_CMD_EXT2=y
+CONFIG_CMD_EXT4=y
+CONFIG_CMD_EXT4_WRITE=y
+CONFIG_CMD_FAT=y
+CONFIG_CMD_FS_GENERIC=y
+CONFIG_OF_CONTROL=y
+CONFIG_REGMAP=y
+CONFIG_SYSCON=y
+CONFIG_CPU=y
+CONFIG_SPI_FLASH=y
+CONFIG_SPI_FLASH_GIGADEVICE=y
+CONFIG_SPI_FLASH_MACRONIX=y
+CONFIG_SPI_FLASH_STMICRO=y
+CONFIG_SPI_FLASH_WINBOND=y
+CONFIG_DM_ETH=y
+CONFIG_E1000=y
+CONFIG_DM_PCI=y
+CONFIG_DM_RTC=y
+CONFIG_DEBUG_UART=y
+CONFIG_DEBUG_UART_BASE=0x3f8
+CONFIG_DEBUG_UART_CLOCK=1843200
+CONFIG_SYS_NS16550=y
+CONFIG_ICH_SPI=y
+CONFIG_TIMER=y
+CONFIG_USB=y
+CONFIG_DM_USB=y
+CONFIG_VIDEO_VESA=y
+CONFIG_FRAMEBUFFER_SET_VESA_MODE=y
+CONFIG_FRAMEBUFFER_VESA_MODE_11A=y
+CONFIG_USE_PRIVATE_LIBGCC=y
diff --git a/doc/README.x86 b/doc/README.x86
index a548b54..7d694b1 100644
--- a/doc/README.x86
+++ b/doc/README.x86
@@ -1020,8 +1020,6 @@ Features not supported so far (to make it a complete ACPI solution):
  * S3 (Suspend to RAM), S4 (Suspend to Disk).
 
 Features that are optional:
- * ACPI global NVS support. We may need it to simplify ASL code logic if
-   utilizing NVS variables. Most likely we will need this sooner or later.
  * Dynamic AML bytecodes insertion at run-time. We may need this to support
    SSDT table generation and DSDT fix up.
  * SMI support. Since U-Boot is a modern bootloader, we don't want to bring
diff --git a/drivers/pci/pci_rom.c b/drivers/pci/pci_rom.c
index 9eb605b..399055b 100644
--- a/drivers/pci/pci_rom.c
+++ b/drivers/pci/pci_rom.c
@@ -39,14 +39,9 @@ __weak bool board_should_run_oprom(struct udevice *dev)
 	return true;
 }
 
-static bool should_load_oprom(struct udevice *dev)
+__weak bool board_should_load_oprom(struct udevice *dev)
 {
-	if (IS_ENABLED(CONFIG_ALWAYS_LOAD_OPROM))
-		return 1;
-	if (board_should_run_oprom(dev))
-		return 1;
-
-	return 0;
+	return true;
 }
 
 __weak uint32_t board_map_oprom_vendev(uint32_t vendev)
@@ -278,7 +273,7 @@ int dm_pci_run_vga_bios(struct udevice *dev, int (*int15_handler)(void),
 		return -ENODEV;
 	}
 
-	if (!should_load_oprom(dev))
+	if (!board_should_load_oprom(dev))
 		return -ENXIO;
 
 	ret = pci_rom_probe(dev, &rom);
diff --git a/include/configs/som-db5800-som-6867.h b/include/configs/som-db5800-som-6867.h
new file mode 100644
index 0000000..a4b343e
--- /dev/null
+++ b/include/configs/som-db5800-som-6867.h
@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2015 Google, Inc
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+/*
+ * board/config.h - configuration options, board specific
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+#include <configs/x86-common.h>
+
+#define CONFIG_SYS_MONITOR_LEN		(1 << 20)
+#define CONFIG_BOARD_EARLY_INIT_F
+#define CONFIG_ARCH_EARLY_INIT_R
+#define CONFIG_ARCH_MISC_INIT
+
+#define CONFIG_PCI_PNP
+#define CONFIG_STD_DEVICES_SETTINGS     "stdin=serial,usbkbd,vga\0" \
+					"stdout=serial,vga\0" \
+					"stderr=serial,vga\0"
+
+#define CONFIG_SCSI_DEV_LIST		\
+	{PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_VALLEYVIEW_SATA}, \
+	{PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_VALLEYVIEW_SATA_ALT}
+
+#define VIDEO_IO_OFFSET				0
+#define CONFIG_X86EMU_RAW_IO
+
+#define CONFIG_ENV_SECT_SIZE		0x1000
+#define CONFIG_ENV_OFFSET		0x006ef000
+
+#endif	/* __CONFIG_H */