arm: imx53: Add support for imx53 boards from K+P

This commit adds support for DDC and HSC boards from
K+P in u-boot.

Console output:

U-Boot 2018.05-rc2-00090-g752b7ed6f9 (Apr 26 2018 - 14:24:24 +0200)

CPU:   Freescale i.MX53 rev2.1 at 800 MHz
Reset cause: WDOG
Model: K+P iMX53
DRAM:  512 MiB
MMC:   FSL_SDHC: 0
Loading Environment from MMC... OK
In:    serial
Out:   serial
Err:   serial
Module EEPROM:
  ID: TQMa53-CB.0401
  SN: 63152762
  MAC: 00:0b:64:03:14:2a
BBoard:40x0 Rev:10
Net:   eth0: ethernet@63fec000
Hit any key to stop autoboot:  0

Signed-off-by: Lukasz Majewski <lukma@denx.de>
diff --git a/configs/kp_imx53_defconfig b/configs/kp_imx53_defconfig
new file mode 100644
index 0000000..63e017d
--- /dev/null
+++ b/configs/kp_imx53_defconfig
@@ -0,0 +1,40 @@
+CONFIG_ARM=y
+CONFIG_ARCH_MX5=y
+CONFIG_SYS_TEXT_BASE=0x77800000
+CONFIG_TARGET_KP_IMX53=y
+# CONFIG_CMD_BMODE is not set
+CONFIG_DEFAULT_DEVICE_TREE="imx53-kp"
+CONFIG_FIT=y
+CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=board/freescale/mx53loco/imximage.cfg"
+CONFIG_SYS_CONSOLE_IS_IN_ENV=y
+CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE=y
+CONFIG_SUPPORT_RAW_INITRD=y
+CONFIG_HUSH_PARSER=y
+CONFIG_CMD_BOOTZ=y
+CONFIG_CMD_I2C=y
+CONFIG_CMD_MMC=y
+CONFIG_CMD_PART=y
+CONFIG_CMD_USB=y
+CONFIG_CMD_DHCP=y
+CONFIG_CMD_MII=y
+CONFIG_CMD_PING=y
+CONFIG_CMD_EXT2=y
+CONFIG_CMD_FAT=y
+CONFIG_CMD_FS_GENERIC=y
+CONFIG_OF_CONTROL=y
+CONFIG_ENV_IS_IN_MMC=y
+CONFIG_I2C_SET_DEFAULT_BUS_NUM=y
+CONFIG_I2C_DEFAULT_BUS_NUMBER=0x1
+CONFIG_PHYLIB=y
+CONFIG_PHY_ADDR=1
+CONFIG_PHY_SMSC=y
+CONFIG_FEC_MXC=y
+CONFIG_PINCTRL=y
+CONFIG_PINCTRL_IMX5=y
+# CONFIG_SPL_PMIC_CHILDREN is not set
+CONFIG_DM_PMIC_MC34708=y
+CONFIG_SPECIFY_CONSOLE_INDEX=y
+CONFIG_CONS_INDEX=2
+CONFIG_MXC_UART=y
+CONFIG_USB=y
+CONFIG_USB_STORAGE=y