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|
inherit image_types
IMAGE_BOOTLOADER ?= "u-boot"
# Handle u-boot suffixes
UBOOT_SUFFIX ?= "bin"
UBOOT_PADDING ?= "0"
UBOOT_SUFFIX_SDCARD ?= "${UBOOT_SUFFIX}"
#
# Handles i.MX mxs bootstream generation
#
# IMX Bootlets Linux bootstream
IMAGE_DEPENDS_linux.sb = "elftosb-native imx-bootlets virtual/kernel"
IMAGE_LINK_NAME_linux.sb = ""
IMAGE_CMD_linux.sb () {
kernel_bin="`readlink ${KERNEL_IMAGETYPE}-${MACHINE}.bin`"
kernel_dtb="`readlink ${KERNEL_IMAGETYPE}-${MACHINE}.dtb || true`"
linux_bd_file=imx-bootlets-linux.bd-${MACHINE}
if [ `basename $kernel_bin .bin` = `basename $kernel_dtb .dtb` ]; then
# When using device tree we build a zImage with the dtb
# appended on the end of the image
linux_bd_file=imx-bootlets-linux.bd-dtb-${MACHINE}
cat $kernel_bin $kernel_dtb \
> $kernel_bin-dtb
rm -f ${KERNEL_IMAGETYPE}-${MACHINE}.bin-dtb
ln -s $kernel_bin-dtb ${KERNEL_IMAGETYPE}-${MACHINE}.bin-dtb
fi
# Ensure the file is generated
rm -f ${IMAGE_NAME}.linux.sb
elftosb -z -c $linux_bd_file -o ${IMAGE_NAME}.linux.sb
# Remove the appended file as it is only used here
rm -f $kernel_bin-dtb
}
# U-Boot mxsboot generation to SD-Card
UBOOT_SUFFIX_SDCARD_mxs ?= "mxsboot-sdcard"
IMAGE_DEPENDS_uboot.mxsboot-sdcard = "u-boot-mxsboot-native u-boot"
IMAGE_CMD_uboot.mxsboot-sdcard = "mxsboot sd ${DEPLOY_DIR_IMAGE}/u-boot-${MACHINE}.${UBOOT_SUFFIX} \
${DEPLOY_DIR_IMAGE}/u-boot-${MACHINE}.${UBOOT_SUFFIX_SDCARD}"
# Default to 3.4GiB images
SDCARD_SIZE ?= "3400"
# Boot partition volume id
BOOTDD_VOLUME_ID ?= "Boot ${MACHINE}"
# Addional space for boot partition
BOOT_SPACE ?= "5MiB"
IMAGE_DEPENDS_sdcard = "parted-native dosfstools-native mtools-native \
virtual/kernel ${IMAGE_BOOTLOADER}"
SDCARD = "${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.sdcard"
SDCARD_GENERATION_COMMAND_mxs = "generate_mxs_sdcard"
SDCARD_GENERATION_COMMAND_mx5 = "generate_imx_sdcard"
SDCARD_GENERATION_COMMAND_mx6 = "generate_imx_sdcard"
#
# Create an image that can by written onto a SD card using dd for use
# with i.MX SoC family
#
# External variables needed:
# ${SDCARD_ROOTFS} - the rootfs image to incorporate
# ${IMAGE_BOOTLOADER} - bootloader to use {u-boot, barebox}
#
# The disk layout used is:
#
# 0 - 1M - reserved to bootloader (not partitioned)
# 1M - BOOT_SPACE - kernel
# BOOT_SPACE - SDCARD_SIZE - rootfs
#
generate_imx_sdcard () {
# Create partition table
parted -s ${SDCARD} mklabel msdos
parted -s ${SDCARD} mkpart primary 1MiB ${BOOT_SPACE}
parted -s ${SDCARD} mkpart primary ${BOOT_SPACE} 100%
parted ${SDCARD} print
case "${IMAGE_BOOTLOADER}" in
imx-bootlets)
bberror "The imx-bootlets is not supported for i.MX based machines"
exit 1
;;
u-boot)
dd if=${DEPLOY_DIR_IMAGE}/u-boot-${MACHINE}.${UBOOT_SUFFIX_SDCARD} of=${SDCARD} conv=notrunc seek=2 skip=${UBOOT_PADDING} bs=512
;;
barebox)
dd if=${DEPLOY_DIR_IMAGE}/barebox-${MACHINE}.bin of=${SDCARD} conv=notrunc seek=1 skip=1 bs=512
dd if=${DEPLOY_DIR_IMAGE}/bareboxenv-${MACHINE}.bin of=${SDCARD} conv=notrunc seek=1 bs=512k
;;
*)
bberror "Unkown IMAGE_BOOTLOADER value"
exit 1
;;
esac
BOOT_BLOCKS=$(LC_ALL=C parted -s ${SDCARD} unit b print \
| awk '/ 1 / { print substr($4, 1, length($4 -1)) / 1024 }')
mkfs.vfat -n "${BOOTDD_VOLUME_ID}" -S 512 -C ${WORKDIR}/boot.img $BOOT_BLOCKS
mcopy -i ${WORKDIR}/boot.img -s ${DEPLOY_DIR_IMAGE}/uImage-${MACHINE}.bin ::/uImage
if [ -e "${KERNEL_IMAGETYPE}-${MACHINE}.dtb" ]; then
kernel_bin="`readlink ${KERNEL_IMAGETYPE}-${MACHINE}.bin`"
kernel_dtb="`readlink ${KERNEL_IMAGETYPE}-${MACHINE}.dtb`"
if [ `basename $kernel_bin .bin` = `basename $kernel_dtb .dtb` ]; then
mcopy -i ${WORKDIR}/boot.img -s ${DEPLOY_DIR_IMAGE}/${KERNEL_IMAGETYPE}-${MACHINE}.dtb ::/machine.dtb
fi
fi
dd if=${WORKDIR}/boot.img of=${SDCARD} conv=notrunc seek=1 bs=1M
dd if=${SDCARD_ROOTFS} of=${SDCARD} conv=notrunc seek=1 bs=${BOOT_SPACE}
}
#
# Create an image that can by written onto a SD card using dd for use
# with i.MXS SoC family
#
# External variables needed:
# ${SDCARD_ROOTFS} - the rootfs image to incorporate
# ${IMAGE_BOOTLOADER} - bootloader to use {imx-bootlets, u-boot}
#
generate_mxs_sdcard () {
# Create partition table
parted -s ${SDCARD} mklabel msdos
case "${IMAGE_BOOTLOADER}" in
imx-bootlets)
# The disk layout used is:
#
# 1M - BOOT_SPACE - kernel
# BOOT_SPACE - SDCARD_SIZE - rootfs
#
parted -s ${SDCARD} mkpart primary 1MiB ${BOOT_SPACE}
parted -s ${SDCARD} mkpart primary ${BOOT_SPACE} 100%
# Empty 4 bytes from boot partition
dd if=/dev/zero of=${SDCARD} conv=notrunc seek=2048 count=4
# Write the bootstream in (2048 + 4) bytes
dd if=${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.linux.sb of=${SDCARD} conv=notrunc seek=1 seek=2052
;;
u-boot)
# The disk layout used is:
#
# 1M - 2M - reserved to bootloader and other data
# 2M - BOOT_SPACE - kernel
# BOOT_SPACE - SDCARD_SIZE - rootfs
#
parted -s ${SDCARD} mkpart primary 1MiB 2MiB
parted -s ${SDCARD} mkpart primary 2MiB ${BOOT_SPACE}
parted -s ${SDCARD} mkpart primary ${BOOT_SPACE} 100%
dd if=${DEPLOY_DIR_IMAGE}/u-boot-${MACHINE}.${UBOOT_SUFFIX_SDCARD} of=${SDCARD} conv=notrunc seek=1 skip=${UBOOT_PADDING} bs=1MiB
BOOT_BLOCKS=$(LC_ALL=C parted -s ${SDCARD} unit b print \
| awk '/ 2 / { print substr($4, 1, length($4 -1)) / 1024 }')
mkfs.vfat -n "${BOOTDD_VOLUME_ID}" -S 512 -C ${WORKDIR}/boot.img $BOOT_BLOCKS
mcopy -i ${WORKDIR}/boot.img -s ${DEPLOY_DIR_IMAGE}/uImage-${MACHINE}.bin ::/uImage
if [ -e "${KERNEL_IMAGETYPE}-${MACHINE}.dtb" ]; then
kernel_bin="`readlink ${KERNEL_IMAGETYPE}-${MACHINE}.bin`"
kernel_dtb="`readlink ${KERNEL_IMAGETYPE}-${MACHINE}.dtb`"
if [ `basename $kernel_bin .bin` = `basename $kernel_dtb .dtb` ]; then
mcopy -i ${WORKDIR}/boot.img -s ${DEPLOY_DIR_IMAGE}/${KERNEL_IMAGETYPE}-${MACHINE}.dtb ::/machine.dtb
fi
fi
dd if=${WORKDIR}/boot.img of=${SDCARD} conv=notrunc seek=2 bs=1MiB
;;
*)
bberror "Unkown IMAGE_BOOTLOADER value"
exit 1
;;
esac
# Change partition type for mxs processor family
bbnote "Setting partition type to 0x53 as required for mxs' SoC family."
echo -n S | dd of=${SDCARD} bs=1 count=1 seek=450 conv=notrunc
parted ${SDCARD} print
dd if=${SDCARD_ROOTFS} of=${SDCARD} conv=notrunc seek=1 bs=${BOOT_SPACE}
}
IMAGE_CMD_sdcard () {
if [ -z "${SDCARD_ROOTFS}" ]; then
bberror "SDCARD_ROOTFS is undefined. To use sdcard image from Freescale's BSP it needs to be defined."
exit 1
fi
# Initialize a sparse file
dd if=/dev/zero of=${SDCARD} bs=1 count=0 seek=$(expr 1000 \* 1000 \* ${SDCARD_SIZE})
${SDCARD_GENERATION_COMMAND}
}
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