x86: Add basic Intel Galileo board support

New board/intel/galileo board directory with minimum codes, plus
board dts, defconfig and configuration files.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Simon Glass <sjg@chromium.org>

arch/x86/dts/Makefile

@@ -1,5 +1,6 @@
 dtb-y += chromebook_link.dtb \
 	crownbay.dtb \
+	galileo.dtb \
 	minnowmax.dtb
 
 targets += $(dtb-y)

arch/x86/dts/galileo.dts

@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+/dts-v1/;
+
+/include/ "skeleton.dtsi"
+
+/ {
+	model = "Intel Galileo";
+	compatible = "intel,galileo", "intel,quark";
+
+	config {
+		silent_console = <0>;
+	};
+
+	chosen {
+		stdout-path = &pciuart0;
+	};
+
+	pci {
+		#address-cells = <3>;
+		#size-cells = <2>;
+		compatible = "intel,pci";
+		device_type = "pci";
+
+		pciuart0: uart@14,5 {
+			compatible = "pci8086,0936.00",
+					"pci8086,0936",
+					"pciclass,070002",
+					"pciclass,0700",
+					"x86-uart";
+			reg = <0x0000a500 0x0 0x0 0x0 0x0
+			       0x0200a510 0x0 0x0 0x0 0x0>;
+			reg-shift = <2>;
+			clock-frequency = <44236800>;
+			current-speed = <115200>;
+		};
+	};
+
+};

board/intel/galileo/Kconfig

@@ -0,0 +1,21 @@
+if TARGET_GALILEO
+
+config SYS_BOARD
+	default "galileo"
+
+config SYS_VENDOR
+	default "intel"
+
+config SYS_SOC
+	default "quark"
+
+config SYS_CONFIG_NAME
+	default "galileo"
+
+config BOARD_SPECIFIC_OPTIONS # dummy
+	def_bool y
+	select X86_RESET_VECTOR
+	select INTEL_QUARK
+	select BOARD_ROMSIZE_KB_1024
+
+endif

board/intel/galileo/MAINTAINERS

@@ -0,0 +1,6 @@
+INTEL GALILEO BOARD
+M:	Bin Meng <bmeng.cn@gmail.com>
+S:	Maintained
+F:	board/intel/galileo/
+F:	include/configs/galileo.h
+F:	configs/galileo_defconfig

board/intel/galileo/Makefile

@@ -0,0 +1,7 @@
+#
+# Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y	+= galileo.o start.o

board/intel/galileo/galileo.c

@@ -0,0 +1,19 @@
+/*
+ * Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int board_early_init_f(void)
+{
+	return 0;
+}
+
+void setup_pch_gpios(u16 gpiobase, const struct pch_gpio_map *gpio)
+{
+	return;
+}

board/intel/galileo/start.S

@@ -0,0 +1,9 @@
+/*
+ * Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+.globl early_board_init
+early_board_init:
+	jmp	early_board_init_ret

configs/galileo_defconfig

@@ -0,0 +1,6 @@
+CONFIG_SYS_EXTRA_OPTIONS="SYS_TEXT_BASE=0xfff10000"
+CONFIG_X86=y
+CONFIG_TARGET_GALILEO=y
+CONFIG_OF_CONTROL=y
+CONFIG_OF_SEPARATE=y
+CONFIG_DEFAULT_DEVICE_TREE="galileo"

include/configs/galileo.h

@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
+ *
+ * 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_NR_DRAM_BANKS		1
+
+#define CONFIG_X86_SERIAL
+
+/* ns16550 UART is memory-mapped in Quark SoC */
+#undef  CONFIG_SYS_NS16550_PORT_MAPPED
+
+#define CONFIG_PCI_MEM_BUS		0x90000000
+#define CONFIG_PCI_MEM_PHYS		CONFIG_PCI_MEM_BUS
+#define CONFIG_PCI_MEM_SIZE		0x20000000
+
+#define CONFIG_PCI_PREF_BUS		0xb0000000
+#define CONFIG_PCI_PREF_PHYS		CONFIG_PCI_PREF_BUS
+#define CONFIG_PCI_PREF_SIZE		0x20000000
+
+#define CONFIG_PCI_IO_BUS		0x2000
+#define CONFIG_PCI_IO_PHYS		CONFIG_PCI_IO_BUS
+#define CONFIG_PCI_IO_SIZE		0xe000
+
+#define CONFIG_SYS_EARLY_PCI_INIT
+#define CONFIG_PCI_PNP
+
+#define CONFIG_STD_DEVICES_SETTINGS	"stdin=serial\0" \
+					"stdout=serial\0" \
+					"stderr=serial\0"
+
+/* SATA is not supported in Quark SoC */
+#undef CONFIG_SCSI_AHCI
+#undef CONFIG_CMD_SCSI
+
+/* Video is not supported in Quark SoC */
+#undef CONFIG_VIDEO
+#undef CONFIG_CFB_CONSOLE
+
+#endif	/* __CONFIG_H */