at91:sam9x: create sdcard images

create sdcard images for sam9x25 & sam9x35 ek targets.

Signed-off-by: Sandeep Sheriker M <sandeep.sheriker@microchip.com>

target/linux/at91/image/sam9x.mk

@@ -5,6 +5,44 @@ define Device/default-nand
   MKUBIFS_OPTS := -m $$(PAGESIZE) -e 126KiB -c 2048
 endef
 
+define Build/at91-sdcard
+  $(if $(findstring ext4,$@), \
+  rm -f $@.boot
+  mkfs.fat -C $@.boot $(FAT32_BLOCKS)
+
+  mcopy -i $@.boot \
+	$(KDIR)/$(DEVICE_NAME)-fit-zImage.itb \
+	::$(DEVICE_NAME)-fit.itb
+
+  mcopy -i $@.boot \
+    $(BIN_DIR)/u-boot-at91sam9x5ek_mmc/u-boot.bin \
+    ::u-boot.bin
+
+  mcopy -i $@.boot \
+    $(BIN_DIR)/at91bootstrap-at91sam9x5eksd_uboot/at91bootstrap.bin \
+    ::BOOT.bin
+
+  $(CP) uboot-env.txt $@-uboot-env.txt
+  sed -i '2d;3d' $@-uboot-env.txt
+  sed -i '2i board='"$(DEVICE_NAME)"'' $@-uboot-env.txt
+  sed -i '3i board_name='"$(DEVICE_NAME)"'' $@-uboot-env.txt
+
+  mkenvimage -s 0x4000 -o $@-uboot.env $@-uboot-env.txt
+
+  mcopy -i $@.boot $@-uboot.env ::uboot.env
+
+  ./gen_at91_sdcard_img.sh \
+      $@.img \
+      $@.boot \
+      $(KDIR)/root.ext4 \
+      $(AT91_SD_BOOT_PARTSIZE) \
+      $(CONFIG_TARGET_ROOTFS_PARTSIZE)
+
+  gzip -nc9 $@.img > $@
+
+  rm -f $@.img $@.boot $@-uboot.env $@-uboot-env.txt)
+endef
+
 define Device/at91sam9263ek
   $(Device/evaluation-dtb)
   DEVICE_VENDOR := Atmel
@@ -56,16 +94,18 @@ endef
 TARGET_DEVICES += at91sam9m10g45ek
 
 define Device/at91sam9x25ek
-  $(Device/evaluation)
+  $(Device/evaluation-dtb)
   DEVICE_VENDOR := Atmel
   DEVICE_MODEL := AT91SAM9X25-EK
+  $(Device/evaluation-sdimage)
 endef
 TARGET_DEVICES += at91sam9x25ek
 
 define Device/at91sam9x35ek
-  $(Device/evaluation)
+  $(Device/evaluation-dtb)
   DEVICE_VENDOR := Atmel
   DEVICE_MODEL := AT91SAM9X35-EK
+  $(Device/evaluation-sdimage)
 endef
 TARGET_DEVICES += at91sam9x35ek