corvus DTS / DM support

Signed-off-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Andreas Bießmann <andreas@biessmann.org>
[rebase on current ToT, don't delete gurnard DTB creation]
Signed-off-by: Andreas Bießmann <andreas@biessmann.org>
diff --git a/configs/corvus_defconfig b/configs/corvus_defconfig
index 2efffb5..51d1516 100644
--- a/configs/corvus_defconfig
+++ b/configs/corvus_defconfig
@@ -1,6 +1,7 @@
 CONFIG_ARM=y
 CONFIG_ARCH_AT91=y
 CONFIG_TARGET_CORVUS=y
+CONFIG_DEFAULT_DEVICE_TREE="at91sam9g45-corvus"
 CONFIG_SPL=y
 CONFIG_SYS_EXTRA_OPTIONS="AT91SAM9M10G45,MACH_TYPE=2066,SYS_USE_NANDFLASH"
 CONFIG_BOOTDELAY=3
@@ -14,6 +15,8 @@
 CONFIG_CMD_USB=y
 CONFIG_CMD_DFU=y
 # CONFIG_CMD_FPGA is not set
+CONFIG_CMD_GPIO=y
+# CONFIG_CMD_SOURCE is not set
 # CONFIG_CMD_SETEXPR is not set
 CONFIG_CMD_DHCP=y
 CONFIG_CMD_PING=y
@@ -25,3 +28,8 @@
 CONFIG_G_DNL_VENDOR_NUM=0x0908
 CONFIG_G_DNL_PRODUCT_NUM=0x02d2
 CONFIG_OF_LIBFDT=y
+CONFIG_OF_CONTROL=y
+CONFIG_OF_EMBED=y
+CONFIG_USB=y
+CONFIG_USB_GADGET=y
+# CONFIG_EFI_LOADER is not set