#@TYPE: Machine #@Name: Compulab cm-x270 #@DESCRIPTION: Machine configuration for Compulab cm-x270 computer module TARGET_ARCH = "arm" GUI_MACHINE_CLASS ?= "bigscreen" PREFERRED_PROVIDER_virtual/kernel = "linux" PACKAGE_EXTRA_ARCHS = " iwmmxt" require conf/machine/include/tune-xscale.inc # console serial port. If you have a L module # the below works. If you have a W module, add # the following line to your local.conf: # CMX270_CONSOLE_SERIAL_PORT = "ttyS0" # NAND flash eraseblock size # most of the older cm-x270 modules are populated with NAND flash # that have 128KiB eraseblocks. Recently, a user encounted # a device that has 16KiB eraseblocks. The following define # can be overridden in local.conf if you have one of these devices. CMX270_NAND_ERASEBLOCK_SIZE ?= "0x20000" # the following is for the cm-x270 L module CMX270_CONSOLE_SERIAL_PORT ?= "ttyS1" # used by sysvinit_2 package, so rebuild this # package if you change the SERIAL_CONSOLE setting # the following is the port for the cm-x270 L module # I think the W module would use ttyS0, but has # not been tested. This can be overwritten in # local.conf SERIAL_CONSOLE ?= "38400 ${CMX270_CONSOLE_SERIAL_PORT}" # used by opie-collections.inc ROOT_FLASH_SIZE ?= "32" # for NAND flash. EXTRA_IMAGECMD_jffs2 = "--little-endian --eraseblock=${CMX270_NAND_ERASEBLOCK_SIZE} --pad --no-cleanmarkers;\ sumtool -i ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.jffs2 \ -o ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs-summary.jffs2 \ -e ${CMX270_NAND_ERASEBLOCK_SIZE} -p; \ cd ${DEPLOY_DIR_IMAGE}; \ rm -f ${DEPLOY_DIR_IMAGE}/${IMAGE_LINK_NAME}.rootfs-summary.jffs2; \ ln -s ${IMAGE_NAME}.rootfs-summary.jffs2 ${IMAGE_LINK_NAME}.rootfs-summary.jffs2 \ " MACHINE_FEATURES = "kernel26 pcmcia usbhost usbgadget pcmcia touchscreen alsa iwmmxt" # to program the compulab NAND flash, the following scheme is suggested. Create # a small rootfs that can fit in NOR flash using the following config: # - Angstrom distro # - uclibc (set ANGSTROMLIBC = "uclibc" in local.conf) # - angstrom-minimal-image-with-mtd-utils bitbake target # - put the following in your local.conf # - IMAGE_FSTYPES = "jffs2 tar cpio.gz" # now, when you build the image, a cpio.gz will be generated # that can be used as an initramfs. You can boot into this image and then # program the main rootfs jffs2 image in NAND flash using mtd-utils # you can select booting the initramfs, or the main nand rootfs by using # the "ramdisk on", or "ramdisk off" commands in the bootloader #