[yocto] [meta-rockchip][PATCH v4] classes: rockchip-gpt-img: add

Mon Feb 27 16:48:16 PST 2017

Hi Trevor

2017-02-28 3:20 GMT+08:00 Trevor Woerner <twoerner at gmail.com>:

> This bbclass was taken from the Rockchip team's work at
> https://github.com/rockchip-linux/meta-rockchip/commit/
> 53d2e2e474a3014e3013d0059fd1da773fb0e2b7
> It was mostly written by Jacob Chen <jacob-chen at iotwrt.com>. I've made
> some
> small modifications and added it.
>
> Older images used (what Rockchip calls) the "legacy parameter" format.
> Newer
> images use u-boot and a GPT partitioning scheme. This class allows the
> build
> to generate a gpt-img file that can either be flashed to eMMC or written
> to an
> SDcard (the same image is used for both).
>
> This is the new image format used for rk3288 SoCs (e.g. the Firefly board).
>
> Reviewd-by: Eddie Cai <eddie.cai.linux at gmail.com>
> Signed-off-by: Jacob Chen <jacob-chen at iotwrt.com>
> Signed-off-by: Trevor Woerner <twoerner at gmail.com>
> ---
>  classes/rockchip-gpt-img.bbclass | 133 ++++++++++++++++++++++++++++++
> +++++++++
>  1 file changed, 133 insertions(+)
>  create mode 100644 classes/rockchip-gpt-img.bbclass
>
> diff --git a/classes/rockchip-gpt-img.bbclass b/classes/rockchip-gpt-img.
> bbclass
> new file mode 100644
> index 0000000..ba83c8a
> --- /dev/null
> +++ b/classes/rockchip-gpt-img.bbclass
> @@ -0,0 +1,133 @@
> +# Copyright (C) 2017 Fuzhou Rockchip Electronics Co., Ltd
> +# Copyright (C) 2017 Trevor Woerner <twoerner at gmail.com>
> +# Released under the MIT license (see COPYING.MIT for the terms)
> +
> +inherit image_types
> +
> +# Use an uncompressed ext4 by default as rootfs
> +IMG_ROOTFS_TYPE = "ext4"
> +IMG_ROOTFS = "${IMGDEPLOYDIR}/${IMAGE_NAME}.rootfs.${IMG_ROOTFS_TYPE}"
> +
> +# This image depends on the rootfs image
> +IMAGE_TYPEDEP_rockchip-gpt-img = "${IMG_ROOTFS_TYPE}"
> +
> +GPTIMG_SUFFIX  = "gpt-img"
> +GPTIMG         = "${IMAGE_NAME}.${GPTIMG_SUFFIX}"
> +GPTIMG_SYMLK   = "${IMAGE_BASENAME}-${MACHINE}.${GPTIMG_SUFFIX}"
> +GPTIMG_SIZE   ?= "4096"
> +BOOT_IMG       = "boot.img"
> +MINILOADER     = "loader.bin"
> +UBOOT          = "u-boot.out"
> +TRUST          = "trust.out"
> +GPTIMG_APPEND ?= "console=tty1 console=ttyS2,115200n8 rw
> root=/dev/mmcblk2p7 rootfstype=ext4 init=/sbin/init"
> +
> +# default partitions [in Sectors]
> +# More info at http://rockchip.wikidot.com/partitions
> +LOADER1_SIZE = "8000"
> +RESERVED1_SIZE = "128"
> +RESERVED2_SIZE = "8192"
> +LOADER2_SIZE = "8192"
> +ATF_SIZE = "8192"
> +BOOT_SIZE = "229376"
> +
> +IMAGE_DEPENDS_rockchip-gpt-img = "parted-native \
> +       u-boot-mkimage-native \
> +       mtools-native \
> +       dosfstools-native \
> +       virtual/kernel:do_deploy \
> +       virtual/bootloader:do_deploy"
> +
> +PER_CHIP_IMG_GENERATION_COMMAND_rk3288 = "generate_rk3288_loader1_image"
> +
> +IMAGE_CMD_rockchip-gpt-img () {
> +       # Change to image directory
> +       cd ${DEPLOY_DIR_IMAGE}
> +
> +       # Remove the existing image symlink
> +       rm -f "${GPTIMG_SYMLK}"
> +
> +       create_rk_image
> +
> +       ${PER_CHIP_IMG_GENERATION_COMMAND}
> +
> +       cd ${DEPLOY_DIR_IMAGE}
> +       ln -s ${GPTIMG} "${IMAGE_BASENAME}-${MACHINE}.${GPTIMG_SUFFIX}"
> +}
> +
> +create_rk_image () {
> +
> +       # Initialize sdcard image file
> +       dd if=/dev/zero of=${GPTIMG} bs=1M count=0 seek=${GPTIMG_SIZE}
> +
> +       # Create partition table
> +       parted -s ${GPTIMG} mklabel gpt
> +
> +       # Create vendor defined partitions
> +       LOADER1_START=64
> +       RESERVED1_START=`expr ${LOADER1_START}  + ${LOADER1_SIZE}`
> +       RESERVED2_START=`expr ${RESERVED1_START}  + ${RESERVED1_SIZE}`
> +       LOADER2_START=`expr ${RESERVED2_START}  + ${RESERVED2_SIZE}`
> +       ATF_START=`expr ${LOADER2_START}  + ${LOADER2_SIZE}`
> +       BOOT_START=`expr ${ATF_START}  + ${ATF_SIZE}`
> +       ROOTFS_START=`expr ${BOOT_START}  + ${BOOT_SIZE}`
> +
> +       parted -s ${GPTIMG} unit s mkpart loader1 ${LOADER1_START} `expr
> ${RESERVED1_START} - 1`
> +       parted -s ${GPTIMG} unit s mkpart reserved1 ${RESERVED1_START}
> `expr ${RESERVED2_START} - 1`
> +       parted -s ${GPTIMG} unit s mkpart reserved2 ${RESERVED2_START}
> `expr ${LOADER2_START} - 1`
> +       parted -s ${GPTIMG} unit s mkpart loader2 ${LOADER2_START} `expr
> ${ATF_START} - 1`
> +       parted -s ${GPTIMG} unit s mkpart atf ${ATF_START} `expr
> ${BOOT_START} - 1`
> +
> +       # Create boot partition and mark it as bootable
> +       parted -s ${GPTIMG} unit s mkpart boot ${BOOT_START} `expr
> ${ROOTFS_START} - 1`
> +       parted -s ${GPTIMG} set 6 boot on
> +
> +       # Create rootfs partition
> +       parted -s ${GPTIMG} unit s mkpart root ${ROOTFS_START} 100%
> +
> +       parted ${GPTIMG} print
> +
> +       # Delete the boot image to avoid trouble with the build cache
> +       rm -f ${WORKDIR}/${BOOT_IMG}
> +
> +       # Create boot partition image
> +       BOOT_BLOCKS=$(LC_ALL=C parted -s ${GPTIMG} unit b print | awk '/ 6
> / { print substr($4, 1, length($4 -1)) / 512 /2 }')
> +       BOOT_BLOCKS=`expr $BOOT_BLOCKS / 63 \* 63`
> +
> +       mkfs.vfat -n "boot" -S 512 -C ${WORKDIR}/${BOOT_IMG} $BOOT_BLOCKS
> +       mcopy -i ${WORKDIR}/${BOOT_IMG} -s ${DEPLOY_DIR_IMAGE}/${KERNEL_IMAGETYPE}-${MACHINE}.bin
> ::${KERNEL_IMAGETYPE}
> +
> +       DEVICETREE_DEFAULT=""
> +       for DTS_FILE in ${KERNEL_DEVICETREE}; do
> +               [ -n "${DEVICETREE_DEFAULT}"] && DEVICETREE_DEFAULT="${DTS_
> FILE}"
> +               mcopy -i ${WORKDIR}/${BOOT_IMG} -s
> ${DEPLOY_DIR_IMAGE}/${KERNEL_IMAGETYPE}-${DTS_FILE} ::${DTS_FILE}
> +       done
> +
> +       # Create extlinux config file
> +       cat > ${WORKDIR}/extlinux.conf <<EOF
> +default yocto
> +
> +label yocto
> +       kernel /${KERNEL_IMAGETYPE}
> +       devicetree /${DEVICETREE_DEFAULT}
> +       append ${GPTIMG_APPEND}
> +EOF
> +
> +       mmd -i ${WORKDIR}/${BOOT_IMG} ::/extlinux
> +       mcopy -i ${WORKDIR}/${BOOT_IMG} -s ${WORKDIR}/extlinux.conf
> ::/extlinux/
> +
>
Could you also copy ${BOOT_IMG} to ${DEPLOY_DIR_IMAGE} . That is much
earier for people find boot image. In case they want to flash boot
partition alone.

> +       # Burn Boot Partition
> +       dd if=${WORKDIR}/${BOOT_IMG} of=${GPTIMG} conv=notrunc,fsync
> seek=${BOOT_START}
> +
> +       # Burn Rootfs Partition
> +       dd if=${IMG_ROOTFS} of=${GPTIMG} seek=${ROOTFS_START}
> +
> +}
> +
> +generate_rk3288_loader1_image () {
> +
> +       # Burn bootloader
> +       mkimage -n rk3288 -T rksd -d ${DEPLOY_DIR_IMAGE}/${SPL_BINARY}
> ${WORKDIR}/${UBOOT}
> +       cat ${DEPLOY_DIR_IMAGE}/u-boot-${MACHINE}.bin >>
> ${WORKDIR}/${UBOOT}
> +       dd if=${WORKDIR}/${UBOOT} of=${GPTIMG} conv=notrunc,fsync seek=64
> +
> +}
> --
> 2.12.0.rc1.48.g076c053
>
> --
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