ARM: tegra: move Tegra specific code under arch/arm/

This patch moves Tegra specific directory entries
from the toplevel Makefile and spl/Makefile
to arch/arm/cpu/*/Makefile using Kbuild descending feature.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Tom Warren <TWarren@nvidia.com>
diff --git a/Makefile b/Makefile
index f4bde33..7e5fd94 100644
--- a/Makefile
+++ b/Makefile
@@ -314,11 +314,7 @@
 ifeq ($(SOC),exynos)
 LIBS-y += $(CPUDIR)/s5p-common/libs5p-common.o
 endif
-ifneq ($(CONFIG_TEGRA),)
-LIBS-y += arch/$(ARCH)/cpu/$(SOC)-common/lib$(SOC)-common.o
-LIBS-y += arch/$(ARCH)/cpu/tegra-common/libcputegra-common.o
-LIBS-y += $(CPUDIR)/tegra-common/libtegra-common.o
-endif
+LIBS-$(CONFIG_ARM) += arch/arm/cpu/libcpu.o
 
 LIBS := $(addprefix $(obj),$(sort $(LIBS-y)))
 .PHONY : $(LIBS)
diff --git a/arch/arm/cpu/Makefile b/arch/arm/cpu/Makefile
new file mode 100644
index 0000000..fd0da53
--- /dev/null
+++ b/arch/arm/cpu/Makefile
@@ -0,0 +1,2 @@
+obj-$(CONFIG_TEGRA) += $(SOC)-common/
+obj-$(CONFIG_TEGRA) += tegra-common/
diff --git a/arch/arm/cpu/arm720t/Makefile b/arch/arm/cpu/arm720t/Makefile
index 243a123..6badb3b 100644
--- a/arch/arm/cpu/arm720t/Makefile
+++ b/arch/arm/cpu/arm720t/Makefile
@@ -7,3 +7,5 @@
 
 extra-y	= start.o
 obj-y	= interrupts.o cpu.o
+
+obj-$(CONFIG_TEGRA) += tegra-common/
diff --git a/arch/arm/cpu/armv7/Makefile b/arch/arm/cpu/armv7/Makefile
index 8a8b602..2c17322 100644
--- a/arch/arm/cpu/armv7/Makefile
+++ b/arch/arm/cpu/armv7/Makefile
@@ -20,3 +20,5 @@
 obj-y	+= nonsec_virt.o
 obj-y	+= virt-v7.o
 endif
+
+obj-$(CONFIG_TEGRA) += tegra-common/
diff --git a/spl/Makefile b/spl/Makefile
index d24c1cd..d3dc511 100644
--- a/spl/Makefile
+++ b/spl/Makefile
@@ -109,11 +109,7 @@
 LIBS-y += arch/$(ARCH)/imx-common/libimx-common.o
 endif
 
-ifneq ($(CONFIG_TEGRA),)
-LIBS-y += arch/$(ARCH)/cpu/$(SOC)-common/lib$(SOC)-common.o
-LIBS-y += arch/$(ARCH)/cpu/tegra-common/libcputegra-common.o
-LIBS-y += $(CPUDIR)/tegra-common/libtegra-common.o
-endif
+LIBS-$(CONFIG_ARM) += arch/arm/cpu/libcpu.o
 
 ifneq ($(CONFIG_MX23)$(CONFIG_MX35),)
 LIBS-y += arch/$(ARCH)/imx-common/libimx-common.o