[target/omap4]: add support for OMAP4 based boards, starting with the PandaBoard

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@29753 3c298f89-4303-0410-b956-a3cf2f4a3e73

target/linux/omap4/image/Makefile

@@ -0,0 +1,36 @@
+#
+# Copyright (C) 2012 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+include $(TOPDIR)/rules.mk
+include $(INCLUDE_DIR)/image.mk
+
+define Image/Prepare
+	cp $(LINUX_DIR)/arch/arm/boot/uImage $(KDIR)/uImage
+endef
+
+define Image/BuildKernel
+	mkimage -A arm -O linux -T script -C none -a 0 -e 0 -n 'Boot Image' -d boot.script $(BIN_DIR)/boot.scr
+	cp $(KDIR)/uImage $(BIN_DIR)/openwrt-$(BOARD)-uImage
+endef
+
+define Image/Build
+	$(call Image/Build/$(1),$(1))
+endef
+
+define Image/Build/jffs2-64k
+	dd if=$(KDIR)/root.$(1) of=$(BIN_DIR)/openwrt-$(BOARD)-$(1).img bs=65536 conv=sync
+endef
+
+define Image/Build/jffs2-128k
+	dd if=$(KDIR)/root.$(1) of=$(BIN_DIR)/openwrt-$(BOARD)-$(1).img bs=131072 conv=sync
+endef
+
+define Image/Build/squashfs
+	$(call prepare_generic_squashfs,$(KDIR)/root.squashfs)
+	dd if=$(KDIR)/root.$(1) of=$(BIN_DIR)/openwrt-$(BOARD)-$(1).img bs=131072 conv=sync
+endef
+
+$(eval $(call BuildImage))

target/linux/omap4/image/boot.script

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+fatload mmc 0:1 0x80000000 openwrt-omap4-uImage
+setenv bootargs vram=32M fixrtc mem=1G@0x80000000 root=/dev/mmcblk0p2 rootfstype=ext4 console=ttyO2,115200n8 rootwait
+bootm 0x80000000