imx: add directory drivers/mxc for i.MX specific drivers

Signed-off-by: Eric Miao <eric.miao@linaro.org>
diff --git a/drivers/Kconfig b/drivers/Kconfig
index 95b9e7e..00c6526 100644
--- a/drivers/Kconfig
+++ b/drivers/Kconfig
@@ -130,4 +130,5 @@
 
 source "drivers/virt/Kconfig"
 
+source "drivers/mxc/Kconfig"
 endmenu
diff --git a/drivers/Makefile b/drivers/Makefile
index 7fa433a..a3a298e 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -96,6 +96,7 @@
 obj-$(CONFIG_CPU_FREQ)		+= cpufreq/
 obj-$(CONFIG_CPU_IDLE)		+= cpuidle/
 obj-$(CONFIG_MMC)		+= mmc/
+obj-$(CONFIG_ARCH_MXC)		+= mxc/
 obj-$(CONFIG_MEMSTICK)		+= memstick/
 obj-y				+= leds/
 obj-$(CONFIG_INFINIBAND)	+= infiniband/
diff --git a/drivers/mxc/Kconfig b/drivers/mxc/Kconfig
new file mode 100644
index 0000000..98b65af
--- /dev/null
+++ b/drivers/mxc/Kconfig
@@ -0,0 +1,9 @@
+# drivers/mxc/Kconfig
+
+if ARCH_MXC
+
+menu "MXC support drivers"
+
+endmenu
+
+endif
diff --git a/drivers/mxc/Makefile b/drivers/mxc/Makefile
new file mode 100644
index 0000000..40b08a2
--- /dev/null
+++ b/drivers/mxc/Makefile
@@ -0,0 +1,2 @@
+# drivers/mxc/Makefile
+