This file describe How to update manually the partition of SDCARD:
1. SDCARD schema of partition
2. How to populate each partition
3. How to update the kernel/devicetree

1. SDCARD schema of partition:
------------------------------

=========================================================================================================
=            =            =            =            =            =            =            =            =
=     fsbl1  =     fsbl2  =       fip  =  u-boot-env  =    bootfs  =  vendorfs  =    rootfs  =    userfs  =
=            =            =            =            =            =            =            =            =
= mmcblk0p1  = mmcblk0p2  = mmcblk0p3  = mmcblk0p4  = mmcblk0p5  = mmcblk0p6  = mmcblk0p7  = mmcblk0p8  =
=    (1 )    =    (2 )    =    (3 )    =    (4 )    =    (5 )    =    (6 )    =    (7 )    =    (8 )    =
=            =            =            =            =            =            =            =            =
=========================================================================================================
(1):
    Device: /dev/mmcblk0p1
    Label:  fsbl1
    Image:  arm-trusted-firmware/tf-a-stm32mp135f-phycore-som-emmc-1gib-sdcard.stm32
(2):
    Device: /dev/mmcblk0p2
    Label:  fsbl2
    Image:  arm-trusted-firmware/tf-a-stm32mp135f-phycore-som-emmc-1gib-sdcard.stm32
(3):
    Device: /dev/mmcblk0p3
    Label:  fip
    Image:  fip/fip-stm32mp135f-phycore-som-emmc-1gib-optee.bin
(4):
    Device: /dev/mmcblk0p4
    Label:  u-boot-env
    Image:  none
(5):
    Device: /dev/mmcblk0p5
    Label:  bootfs
    Image:  st-image-bootfs-openstlinux-weston-phyboard-segin-stm32mp13x-1.ext4
(6):
    Device: /dev/mmcblk0p6
    Label:  vendorfs
    Image:  st-image-vendorfs-openstlinux-weston-phyboard-segin-stm32mp13x-1.ext4
(7):
    Device: /dev/mmcblk0p7
    Label:  rootfs
    Image:  st-image-weston-openstlinux-weston-phyboard-segin-stm32mp13x-1.ext4
(8):
    Device: /dev/mmcblk0p8
    Label:  userfs
    Image:  st-image-userfs-openstlinux-weston-phyboard-segin-stm32mp13x-1.ext4

2. How to populate each partition
---------------------------------
- Populate partition fsbl1 (/dev/mmcblk0p1)
    dd if=arm-trusted-firmware/tf-a-stm32mp135f-phycore-som-emmc-1gib-sdcard.stm32 of=/dev/mmcblk0p1 bs=1M conv=fdatasync status=progress

- Populate partition fsbl2 (/dev/mmcblk0p2)
    dd if=arm-trusted-firmware/tf-a-stm32mp135f-phycore-som-emmc-1gib-sdcard.stm32 of=/dev/mmcblk0p2 bs=1M conv=fdatasync status=progress

- Populate partition fip (/dev/mmcblk0p3)
    dd if=fip/fip-stm32mp135f-phycore-som-emmc-1gib-optee.bin of=/dev/mmcblk0p3 bs=1M conv=fdatasync status=progress

- Populate partition u-boot-env (/dev/mmcblk0p4)
    dd if=none of=/dev/mmcblk0p4 bs=1M conv=fdatasync status=progress

- Populate partition bootfs (/dev/mmcblk0p5)
    dd if=st-image-bootfs-openstlinux-weston-phyboard-segin-stm32mp13x-1.ext4 of=/dev/mmcblk0p5 bs=1M conv=fdatasync status=progress

- Populate partition vendorfs (/dev/mmcblk0p6)
    dd if=st-image-vendorfs-openstlinux-weston-phyboard-segin-stm32mp13x-1.ext4 of=/dev/mmcblk0p6 bs=1M conv=fdatasync status=progress

- Populate partition rootfs (/dev/mmcblk0p7)
    dd if=st-image-weston-openstlinux-weston-phyboard-segin-stm32mp13x-1.ext4 of=/dev/mmcblk0p7 bs=1M conv=fdatasync status=progress

- Populate partition userfs (/dev/mmcblk0p8)
    dd if=st-image-userfs-openstlinux-weston-phyboard-segin-stm32mp13x-1.ext4 of=/dev/mmcblk0p8 bs=1M conv=fdatasync status=progress


3. How to update the kernel/devicetree
--------------------------------------
The kernel and devicetree are present on "boot" partition.
To change kernel and devicetree, you can copy the file on this partitions:
- plug SDCARD on your PC
- copy kernel uImage on SDCARD
   sudo cp uImage /media/$USER/bootfs/
- copy devicetree uImage on SDCARD
   sudo cp stm32mp1*.dtb /media/$USER/bootfs/
- umount partitions of SDCARD
   sudo umount /media/$USER/bootfs/
   (dont't forget to umount the other partitions of SDCARD:
   sudo umount `lsblk --list | grep mmcblk0 | grep part | gawk '{ print $7 }' | tr '\n' ' '`
   )