ARM: tegra: collect SoC sources into mach-tegra

This commit moves files as follows:

 arch/arm/cpu/arm720t/tegra20/*      -> arch/arm/mach-tegra/tegra20/*
 arch/arm/cpu/arm720t/tegra30/*      -> arch/arm/mach-tegra/tegra30/*
 arch/arm/cpu/arm720t/tegra114/*     -> arch/arm/mach-tegra/tegra114/*
 arch/arm/cpu/arm720t/tegra124*      -> arch/arm/mach-tegra/tegra124/*
 arch/arm/cpu/arm720t/tegra-common/* -> arch/arm/mach-tegra/*
 arch/arm/cpu/armv7/tegra20/*        -> arch/arm/mach-tegra/tegra20/*
 arch/arm/cpu/armv7/tegra30/*        -> arch/arm/mach-tegra/tegra30/*
 arch/arm/cpu/armv7/tegra114/*       -> arch/arm/mach-tegra/tegra114/*
 arch/arm/cpu/armv7/tegra124/*       -> arch/arm/mach-tegra/tegra124/*
 arch/arm/cpu/armv7/tegra-common/*   -> arch/arm/mach-tegra/*
 arch/arm/cpu/tegra20-common/*       -> arch/arm/mach-tegra/tegra20/*
 arch/arm/cpu/tegra30-common/*       -> arch/arm/mach-tegra/tegra30/*
 arch/arm/cpu/tegra114-common/*      -> arch/arm/mach-tegra/tegra114/*
 arch/arm/cpu/tegra124-common/*      -> arch/arm/mach-tegra/tegra124/*
 arch/arm/cpu/tegra-common/*         -> arch/arm/mach-tegra/*

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Tested-by: Simon Glass <sjg@chromium.org> [ on nyan-big ]
Cc: Stephen Warren <swarren@nvidia.com>
Cc: Tom Warren <twarren@nvidia.com>
diff --git a/arch/arm/mach-tegra/Kconfig b/arch/arm/mach-tegra/Kconfig
new file mode 100644
index 0000000..3a8e2b1
--- /dev/null
+++ b/arch/arm/mach-tegra/Kconfig
@@ -0,0 +1,52 @@
+if TEGRA
+
+choice
+	prompt "Tegra SoC select"
+
+config TEGRA20
+	bool "Tegra20 family"
+
+config TEGRA30
+	bool "Tegra30 family"
+
+config TEGRA114
+	bool "Tegra114 family"
+
+config TEGRA124
+	bool "Tegra124 family"
+
+endchoice
+
+config SYS_MALLOC_F
+	default y
+
+config SYS_MALLOC_F_LEN
+	default 0x1800
+
+config USE_PRIVATE_LIBGCC
+	default y if SPL_BUILD
+
+config DM
+	default y if !SPL_BUILD
+
+config DM_SERIAL
+	default y if !SPL_BUILD
+
+config DM_SPI
+	default y if !SPL_BUILD
+
+config DM_SPI_FLASH
+	default y if !SPL_BUILD
+
+config DM_I2C
+	default y if !SPL_BUILD
+
+config DM_GPIO
+	default y if !SPL_BUILD
+
+source "arch/arm/mach-tegra/tegra20/Kconfig"
+source "arch/arm/mach-tegra/tegra30/Kconfig"
+source "arch/arm/mach-tegra/tegra114/Kconfig"
+source "arch/arm/mach-tegra/tegra124/Kconfig"
+
+endif