x64: add EFI Image boot from emmc SSD support

config/Config-images.in

@@ -202,13 +202,12 @@ menu "Target Images"
 		depends on TARGET_ROOTFS_EXT4FS || TARGET_ROOTFS_ISO || TARGET_ROOTFS_JFFS2 || TARGET_ROOTFS_SQUASHFS
 		select PACKAGE_grub2
 		select PACKAGE_grub2-efi
-		default n
+		default y
 
 	config GRUB_CONSOLE
 		bool "Use Console Terminal (in addition to Serial)"
 		depends on GRUB_IMAGES || EFI_IMAGES
-		default n if (TARGET_x86_generic_Soekris45xx || TARGET_x86_generic_Soekris48xx || TARGET_x86_net5501 || TARGET_x86_geos || TARGET_x86_alix2)
-		default y
+		default n
 
 	config GRUB_SERIAL
 		string "Serial port device"

target/linux/generic/files/drivers/platform/mikrotik/Kconfig

@@ -0,0 +1,19 @@
+menuconfig MIKROTIK
+	bool "Platform support for MikroTik RouterBoard virtual devices"
+	default n
+	help
+	  Say Y here to get to see options for the MikroTik RouterBoard platform.
+	  This option alone does not add any kernel code.
+
+
+if MIKROTIK
+
+config MIKROTIK_RB_SYSFS
+	tristate "RouterBoot sysfs support"
+	depends on MTD
+	select LZO_DECOMPRESS
+	select CRC32
+	help
+	  This driver exposes RouterBoot configuration in sysfs.
+
+endif # MIKROTIK

target/linux/generic/files/drivers/platform/mikrotik/Makefile

@@ -0,0 +1,4 @@
+#
+# Makefile for MikroTik RouterBoard platform specific drivers
+#
+obj-$(CONFIG_MIKROTIK_RB_SYSFS)     += routerboot.o rb_hardconfig.o rb_softconfig.o