kconfig: add board Kconfig and defconfig files

This commit adds:
 - arch/${ARCH}/Kconfig
    provide a menu to select target boards
 - board/${VENDOR}/${BOARD}/Kconfig or board/${BOARD}/Kconfig
    set CONFIG macros to the appropriate values for each board
 - configs/${TARGET_BOARD}_defconfig
    default setting of each board

(This commit was automatically generated by a conversion script
based on boards.cfg)

In Linux Kernel, defconfig files are located under
arch/${ARCH}/configs/ directory.
It works in Linux Kernel since ARCH is always given from the
command line for cross compile.

But in U-Boot, ARCH is not given from the command line.
Which means we cannot know ARCH until the board configuration is done.
That is why all the "*_defconfig" files should be gathered into a
single directory ./configs/.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Simon Glass <sjg@chromium.org>
diff --git a/board/nvidia/beaver/Kconfig b/board/nvidia/beaver/Kconfig
new file mode 100644
index 0000000..f052676
--- /dev/null
+++ b/board/nvidia/beaver/Kconfig
@@ -0,0 +1,24 @@
+if TARGET_BEAVER
+
+config SYS_CPU
+	string
+	default "arm720t" if SPL_BUILD
+	default "armv7" if !SPL_BUILD
+
+config SYS_BOARD
+	string
+	default "beaver"
+
+config SYS_VENDOR
+	string
+	default "nvidia"
+
+config SYS_SOC
+	string
+	default "tegra30"
+
+config SYS_CONFIG_NAME
+	string
+	default "beaver"
+
+endif
diff --git a/board/nvidia/cardhu/Kconfig b/board/nvidia/cardhu/Kconfig
new file mode 100644
index 0000000..9853114
--- /dev/null
+++ b/board/nvidia/cardhu/Kconfig
@@ -0,0 +1,24 @@
+if TARGET_CARDHU
+
+config SYS_CPU
+	string
+	default "arm720t" if SPL_BUILD
+	default "armv7" if !SPL_BUILD
+
+config SYS_BOARD
+	string
+	default "cardhu"
+
+config SYS_VENDOR
+	string
+	default "nvidia"
+
+config SYS_SOC
+	string
+	default "tegra30"
+
+config SYS_CONFIG_NAME
+	string
+	default "cardhu"
+
+endif
diff --git a/board/nvidia/dalmore/Kconfig b/board/nvidia/dalmore/Kconfig
new file mode 100644
index 0000000..33b78db
--- /dev/null
+++ b/board/nvidia/dalmore/Kconfig
@@ -0,0 +1,24 @@
+if TARGET_DALMORE
+
+config SYS_CPU
+	string
+	default "arm720t" if SPL_BUILD
+	default "armv7" if !SPL_BUILD
+
+config SYS_BOARD
+	string
+	default "dalmore"
+
+config SYS_VENDOR
+	string
+	default "nvidia"
+
+config SYS_SOC
+	string
+	default "tegra114"
+
+config SYS_CONFIG_NAME
+	string
+	default "dalmore"
+
+endif
diff --git a/board/nvidia/harmony/Kconfig b/board/nvidia/harmony/Kconfig
new file mode 100644
index 0000000..2a3bde4
--- /dev/null
+++ b/board/nvidia/harmony/Kconfig
@@ -0,0 +1,24 @@
+if TARGET_HARMONY
+
+config SYS_CPU
+	string
+	default "arm720t" if SPL_BUILD
+	default "armv7" if !SPL_BUILD
+
+config SYS_BOARD
+	string
+	default "harmony"
+
+config SYS_VENDOR
+	string
+	default "nvidia"
+
+config SYS_SOC
+	string
+	default "tegra20"
+
+config SYS_CONFIG_NAME
+	string
+	default "harmony"
+
+endif
diff --git a/board/nvidia/jetson-tk1/Kconfig b/board/nvidia/jetson-tk1/Kconfig
new file mode 100644
index 0000000..22b4c69
--- /dev/null
+++ b/board/nvidia/jetson-tk1/Kconfig
@@ -0,0 +1,24 @@
+if TARGET_JETSON_TK1
+
+config SYS_CPU
+	string
+	default "arm720t" if SPL_BUILD
+	default "armv7" if !SPL_BUILD
+
+config SYS_BOARD
+	string
+	default "jetson-tk1"
+
+config SYS_VENDOR
+	string
+	default "nvidia"
+
+config SYS_SOC
+	string
+	default "tegra124"
+
+config SYS_CONFIG_NAME
+	string
+	default "jetson-tk1"
+
+endif
diff --git a/board/nvidia/seaboard/Kconfig b/board/nvidia/seaboard/Kconfig
new file mode 100644
index 0000000..39c65b5
--- /dev/null
+++ b/board/nvidia/seaboard/Kconfig
@@ -0,0 +1,24 @@
+if TARGET_SEABOARD
+
+config SYS_CPU
+	string
+	default "arm720t" if SPL_BUILD
+	default "armv7" if !SPL_BUILD
+
+config SYS_BOARD
+	string
+	default "seaboard"
+
+config SYS_VENDOR
+	string
+	default "nvidia"
+
+config SYS_SOC
+	string
+	default "tegra20"
+
+config SYS_CONFIG_NAME
+	string
+	default "seaboard"
+
+endif
diff --git a/board/nvidia/venice2/Kconfig b/board/nvidia/venice2/Kconfig
new file mode 100644
index 0000000..84a7160
--- /dev/null
+++ b/board/nvidia/venice2/Kconfig
@@ -0,0 +1,24 @@
+if TARGET_VENICE2
+
+config SYS_CPU
+	string
+	default "arm720t" if SPL_BUILD
+	default "armv7" if !SPL_BUILD
+
+config SYS_BOARD
+	string
+	default "venice2"
+
+config SYS_VENDOR
+	string
+	default "nvidia"
+
+config SYS_SOC
+	string
+	default "tegra124"
+
+config SYS_CONFIG_NAME
+	string
+	default "venice2"
+
+endif
diff --git a/board/nvidia/ventana/Kconfig b/board/nvidia/ventana/Kconfig
new file mode 100644
index 0000000..59e85c4
--- /dev/null
+++ b/board/nvidia/ventana/Kconfig
@@ -0,0 +1,24 @@
+if TARGET_VENTANA
+
+config SYS_CPU
+	string
+	default "arm720t" if SPL_BUILD
+	default "armv7" if !SPL_BUILD
+
+config SYS_BOARD
+	string
+	default "ventana"
+
+config SYS_VENDOR
+	string
+	default "nvidia"
+
+config SYS_SOC
+	string
+	default "tegra20"
+
+config SYS_CONFIG_NAME
+	string
+	default "ventana"
+
+endif
diff --git a/board/nvidia/whistler/Kconfig b/board/nvidia/whistler/Kconfig
new file mode 100644
index 0000000..f025413
--- /dev/null
+++ b/board/nvidia/whistler/Kconfig
@@ -0,0 +1,24 @@
+if TARGET_WHISTLER
+
+config SYS_CPU
+	string
+	default "arm720t" if SPL_BUILD
+	default "armv7" if !SPL_BUILD
+
+config SYS_BOARD
+	string
+	default "whistler"
+
+config SYS_VENDOR
+	string
+	default "nvidia"
+
+config SYS_SOC
+	string
+	default "tegra20"
+
+config SYS_CONFIG_NAME
+	string
+	default "whistler"
+
+endif