On Sat, Jun 17, 2017 at 8:20 AM, Tom Rini <tr...@konsulko.com> wrote: > On Fri, Jun 16, 2017 at 06:05:07PM -0700, Khem Raj wrote: >> On Fri, Jun 16, 2017 at 12:12 PM, Matthew McClintock >> <msm-...@mcclintock.net> wrote: >> > 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-...@mcclintock.net> >> > --- >> > classes/sdcard_image-rpi.bbclass | 8 ++++++++ >> > 1 file changed, 8 insertions(+) >> > >> > diff --git a/classes/sdcard_image-rpi.bbclass >> > b/classes/sdcard_image-rpi.bbclass >> > index af3e807..27a0dfc 100644 >> > --- a/classes/sdcard_image-rpi.bbclass >> > +++ b/classes/sdcard_image-rpi.bbclass >> > @@ -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. >> > 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 () { >> > >> > # Align partitions >> > @@ -145,6 +149,10 @@ IMAGE_CMD_rpi-sdimg () { >> > echo "${IMAGE_NAME}" > ${WORKDIR}/image-version-info >> > mcopy -i ${WORKDIR}/boot.img -v ${WORKDIR}/image-version-info :: >> > >> > + # Deploy vfat partition >> > + cp ${WORKDIR}/boot.img ${SDIMG_VFAT} >> > + ln -sf ${SDIMG_VFAT} ${SDIMG_LINK_VFAT} >> > + >> >> it is of use if I am not using u-boot ? is there any penalty ? > > The stock firmware also uses a vfat partition, so this could just as > easily hold those contents.
yes it does, can it do the same operations like u-boot ? > > -- > Tom -- _______________________________________________ yocto mailing list yocto@yoctoproject.org https://lists.yoctoproject.org/listinfo/yocto