After finishing bitbake, I can see these many images under /tmp/deploy/images folder. Please describe what each of these images does. Also let me know which of them need to be used for flashing in imx target board.
core-image-minimal-imx6qsabresd-20160629055409.rootfs.ext3
core-image-minimal-imx6qsabresd-20160629055409.rootfs.manifest
core-image-minimal-imx6qsabresd-20160629055409.rootfs.sdcard
core-image-minimal-imx6qsabresd-20160629055409.rootfs.tar.bz2
core-image-minimal-imx6qsabresd.ext3 -> core-image-minimal-imx6qsabresd-20160629055409.rootfs.ext3
core-image-minimal-imx6qsabresd.manifest -> core-image-minimal-imx6qsabresd-20160629055409.rootfs.manifest
core-image-minimal-imx6qsabresd.sdcard -> core-image-minimal-imx6qsabresd-20160629055409.rootfs.sdcard
core-image-minimal-imx6qsabresd.tar.bz2 -> core-image-minimal-imx6qsabresd-20160629055409.rootfs.tar.bz2
modules--3.10.17-r0-imx6qsabresd-20160629055409.tgz
modules-imx6qsabresd.tgz -> modules--3.10.17-r0-imx6qsabresd-20160629055409.tgz
README_-_DO_NOT_DELETE_FILES_IN_THIS_DIRECTORY.txt
u-boot.imx -> u-boot-imx6qsabresd-v2014.01-r0.imx
u-boot-imx6qsabresd.imx -> u-boot-imx6qsabresd-v2014.01-r0.imx
u-boot-imx6qsabresd-v2014.01-r0.imx
uImage -> uImage--3.10.17-r0-imx6qsabresd-20160629055409.bin
uImage--3.10.17-r0-imx6qsabresd-20160629055409.bin
uImage--3.10.17-r0-imx6q-sabresd-20160629055409.dtb
uImage--3.10.17-r0-imx6q-sabresd-hdcp-20160629055409.dtb
uImage--3.10.17-r0-imx6q-sabresd-ldo-20160629055409.dtb
uImage-imx6qsabresd.bin -> uImage--3.10.17-r0-imx6qsabresd-20160629055409.bin
uImage-imx6q-sabresd.dtb -> uImage--3.10.17-r0-imx6q-sabresd-20160629055409.dtb
uImage-imx6q-sabresd-hdcp.dtb -> uImage--3.10.17-r0-imx6q-sabresd-hdcp-20160629055409.dtb
uImage-imx6q-sabresd-ldo.dtb -> uImage--3.10.17-r0-imx6q-sabresd-ldo-20160629055409.dtb
-rw-r--r-- 1 santhosh santhosh 67108864 Jun 29 12:03 core-image-minimal-imx6qsabresd-20160629055409.rootfs.ext3
-rw-r--r-- 1 santhosh santhosh 978 Jun 29 12:03 core-image-minimal-imx6qsabresd-20160629055409.rootfs.manifest
-rw-r--r-- 1 santhosh santhosh 83886080 Jun 29 12:03 core-image-minimal-imx6qsabresd-20160629055409.rootfs.sdcard
-rw-r--r-- 1 santhosh santhosh 2285152 Jun 29 12:03 core-image-minimal-imx6qsabresd-20160629055409.rootfs.tar.bz2
lrwxrwxrwx 1 santhosh santhosh 58 Jun 29 12:03 core-image-minimal-imx6qsabresd.ext3 -> core-image-minimal-imx6qsabresd-20160629055409.rootfs.ext3
lrwxrwxrwx 1 santhosh santhosh 62 Jun 29 12:03 core-image-minimal-imx6qsabresd.manifest -> core-image-minimal-imx6qsabresd-20160629055409.rootfs.manifest
lrwxrwxrwx 1 santhosh santhosh 60 Jun 29 12:03 core-image-minimal-imx6qsabresd.sdcard -> core-image-minimal-imx6qsabresd-20160629055409.rootfs.sdcard
lrwxrwxrwx 1 santhosh santhosh 61 Jun 29 12:03 core-image-minimal-imx6qsabresd.tar.bz2 -> core-image-minimal-imx6qsabresd-20160629055409.rootfs.tar.bz2
-rw-rw-r-- 2 santhosh santhosh 599286 Jun 29 11:57 modules--3.10.17-r0-imx6qsabresd-20160629055409.tgz
lrwxrwxrwx 1 santhosh santhosh 51 Jun 29 11:57 modules-imx6qsabresd.tgz -> modules--3.10.17-r0-imx6qsabresd-20160629055409.tgz
-rw-r--r-- 2 santhosh santhosh 294 Jun 29 12:01 README_-_DO_NOT_DELETE_FILES_IN_THIS_DIRECTORY.txt
lrwxrwxrwx 1 santhosh santhosh 35 Jun 29 07:17 u-boot.imx -> u-boot-imx6qsabresd-v2014.01-r0.imx
lrwxrwxrwx 1 santhosh santhosh 35 Jun 29 07:17 u-boot-imx6qsabresd.imx -> u-boot-imx6qsabresd-v2014.01-r0.imx
-rwxr-xr-x 2 santhosh santhosh 314368 Jun 29 07:17 u-boot-imx6qsabresd-v2014.01-r0.imx
lrwxrwxrwx 1 santhosh santhosh 50 Jun 29 11:57 uImage -> uImage--3.10.17-r0-imx6qsabresd-20160629055409.bin
-rw-r--r-- 2 santhosh santhosh 5264672 Jun 29 11:57 uImage--3.10.17-r0-imx6qsabresd-20160629055409.bin
-rw-r--r-- 2 santhosh santhosh 47179 Jun 29 11:57 uImage--3.10.17-r0-imx6q-sabresd-20160629055409.dtb
-rw-r--r-- 2 santhosh santhosh 47268 Jun 29 11:57 uImage--3.10.17-r0-imx6q-sabresd-hdcp-20160629055409.dtb
-rw-r--r-- 2 santhosh santhosh 47179 Jun 29 11:57 uImage--3.10.17-r0-imx6q-sabresd-ldo-20160629055409.dtb
lrwxrwxrwx 1 santhosh santhosh 50 Jun 29 11:57 uImage-imx6qsabresd.bin -> uImage--3.10.17-r0-imx6qsabresd-20160629055409.bin
lrwxrwxrwx 1 santhosh santhosh 51 Jun 29 11:57 uImage-imx6q-sabresd.dtb -> uImage--3.10.17-r0-imx6q-sabresd-20160629055409.dtb
lrwxrwxrwx 1 santhosh santhosh 56 Jun 29 11:57 uImage-imx6q-sabresd-hdcp.dtb -> uImage--3.10.17-r0-imx6q-sabresd-hdcp-20160629055409.dtb
lrwxrwxrwx 1 santhosh santhosh 55 Jun 29 11:57 uImage-imx6q-sabresd-ldo.dtb -> uImage--3.10.17-r0-imx6q-sabresd-ldo-20160629055409.dtb
Please download the BSP documentation from here:
i.MX 6 Series Software and Development Tool|NXP
Basically, all the information can be found from the Freescale_Yocto_Project_User's_Guide and i.MX_Linux_User's_Guide.
All the drivers information can be found in i.MX_Linux_Reference_Manual