am335x, shc: add support for the am335x based bosch shc board

U-Boot SPL 2016.03-rc3-00019-g6dfb4c2-dirty (Mar 09 2016 - 07:40:06)
SHC C3-Sample
MPU reference clock runs at 6 MHz
Setting MPU clock to 594 MHz
Enabling Spread Spectrum of 18 permille for MPU
Trying to boot from MMC
reading u-boot.img
reading u-boot.img

U-Boot 2016.03-rc3-00019-g6dfb4c2-dirty (Mar 09 2016 - 07:05:35 +0100)

       Watchdog enabled
I2C:   ready
DRAM:  512 MiB
reloc off 1f783000
MMC:   OMAP SD/MMC: 0, OMAP SD/MMC: 1
Net:   cpsw
U-Boot#

Signed-off-by: Heiko Schocher <hs@denx.de>
diff --git a/configs/am335x_shc_prompt_defconfig b/configs/am335x_shc_prompt_defconfig
new file mode 100644
index 0000000..a415ab4
--- /dev/null
+++ b/configs/am335x_shc_prompt_defconfig
@@ -0,0 +1,19 @@
+CONFIG_ARM=y
+CONFIG_TARGET_AM335X_SHC=y
+CONFIG_SERIES=y
+CONFIG_SPL_STACK_R_ADDR=0x82000000
+CONFIG_SPL=y
+CONFIG_SPL_STACK_R=y
+CONFIG_FIT=y
+CONFIG_BOOTDELAY=5
+CONFIG_AUTOBOOT_KEYED=y
+CONFIG_AUTOBOOT_PROMPT="Enter 'shc' to enter prompt (times out) %d \nEnter 'noautoboot' to enter prompt without timeout\n"
+CONFIG_AUTOBOOT_DELAY_STR="shc"
+CONFIG_AUTOBOOT_STOP_STR="noautoboot"
+# CONFIG_CMD_IMLS is not set
+# CONFIG_CMD_FLASH is not set
+CONFIG_CMD_MMC=y
+CONFIG_CMD_GPIO=y
+# CONFIG_CMD_SETEXPR is not set
+CONFIG_SYS_NS16550=y
+CONFIG_OF_LIBFDT=y