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sdcard_image-rpi.bbclass: deploy vfat partition

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This is useful to update the bootloader/vfat partition from u-boot when
you don't want to update everything:

U-Boot> tftpboot 0x1000000 tmp/0VXje
Waiting for Ethernet connection... done.
Using sms0 device
TFTP from server 192.168.0.1; our IP address is 192.168.0.26
Filename 'image.vfat'.
Load address: 0x1000000
Loading: ##################################################  40 MiB
	 2.1 MiB/s
done
Bytes transferred = 41943040 (2800000 hex)
U-Boot> mmc part

Partition Map for MMC device 0  --   Partition Type: DOS

Part	Start Sector	Num Sectors	UUID		Type
  1	8192      	81920     	a63a4fbc-01	0c Boot
  2	90112     	163840    	a63a4fbc-02	83
U-Boot> mmc erase 0x2000 0x14000

MMC erase: dev # 0, block # 8192, count 81920 ... 81920 blocks erased:
OK
U-Boot> mmc write 0x1000000 0x2000 0x14000

MMC write: dev # 0, block # 8192, count 81920 ... 81920 blocks written:
OK
U-Boot>

Signed-off-by: Matthew McClintock <msm-oss@mcclintock.net>
This commit is contained in:
Matthew McClintock 2017-06-14 13:24:20 -05:00
parent 11fec46133
commit a6bb80c935
1 changed files with 14 additions and 0 deletions
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14
classes/sdcard_image-rpi.bbclass
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@ -72,6 +72,10 @@ SDIMG = "${IMGDEPLOYDIR}/${IMAGE_NAME}.rootfs.rpi-sdimg"
# Additional files and/or directories to be copied into the vfat partition from the IMAGE_ROOTFS. # Additional files and/or directories to be copied into the vfat partition from the IMAGE_ROOTFS.
FATPAYLOAD ?= "" FATPAYLOAD ?= ""
# SD card vfat partition image name
SDIMG_VFAT = "${IMGDEPLOYDIR}/${IMAGE_NAME}.vfat"
SDIMG_LINK_VFAT = "${IMGDEPLOYDIR}/${IMAGE_LINK_NAME}.vfat"
IMAGE_CMD_rpi-sdimg () { IMAGE_CMD_rpi-sdimg () {
# Align partitions # Align partitions
@ -145,6 +149,16 @@ IMAGE_CMD_rpi-sdimg () {
echo "${IMAGE_NAME}" > ${WORKDIR}/image-version-info echo "${IMAGE_NAME}" > ${WORKDIR}/image-version-info
mcopy -i ${WORKDIR}/boot.img -v ${WORKDIR}/image-version-info :: mcopy -i ${WORKDIR}/boot.img -v ${WORKDIR}/image-version-info ::
# Deploy vfat partition (for u-boot case only)
case "${KERNEL_IMAGETYPE}" in
"uImage")
cp ${WORKDIR}/boot.img ${SDIMG_VFAT}
ln -sf ${SDIMG_VFAT} ${SDIMG_LINK_VFAT}
;;
*)
;;
esac
# Burn Partitions # Burn Partitions
dd if=${WORKDIR}/boot.img of=${SDIMG} conv=notrunc seek=1 bs=$(expr ${IMAGE_ROOTFS_ALIGNMENT} \* 1024) && sync && sync dd if=${WORKDIR}/boot.img of=${SDIMG} conv=notrunc seek=1 bs=$(expr ${IMAGE_ROOTFS_ALIGNMENT} \* 1024) && sync && sync
# If SDIMG_ROOTFS_TYPE is a .xz file use xzcat # If SDIMG_ROOTFS_TYPE is a .xz file use xzcat