ARM: Exynos4: add odroidx_defconfig

Signed-off-by: Dongjin Kim <tobetter@gmail.com>
ARM: dts: add usb3503 entry to ODROID-X

Signed-off-by: Dongjin Kim <tobetter@gmail.com>
ARM: dts: Add USB device node for Exynos4

This patch adds EHCI device node for Exynos4.

Signed-off-by: Dongjin Kim <tobetter@gmail.com>
ARM: dts: Enable EHCI and USBPHY
usb: phy: samsung: adding usbphy for Exynos4X12

This patch adds usb host phy (USB 2.0 PHY) support for Samsung Exynos4X12 SoC.
New functions, samsung_exynos4x12_usb2phy_enable/_disable and selecting
reference clock, for Exynos4X12 are added. Since it has different register
set up with Exynos4210 or Exynos5250, "samsung,exynos4x12-usb2phy" is added.

Signed-off-by: Dongjin Kim <tobetter@gmail.com>