SB52 SoM and EVB

h1. Yocto partition layout modify

If your partition size are too small.

Here is example, please follow the steps in below to adjust it.

*1.      Currently , size of system_a/system_b partition is %{color:red}1145044992% bytes*

*2.      To increase system_a/system_b, please adjust following file*

*meta/meta-innocomm/recipes-bsp/scatter/files/sb52/partition_emmc.xml*

Examples of increasing size of system_a/system_b from 1145044992 bytes to 1228800000 bytes (size must be multiple of 4096)

!{width: 60%}partition1.png!

*3.      Remove %{color:red}/build/tmp/deploy/images/sb52/MT8183_Yocto_AIV_scatter.txt% and %{color:red}/build/tmp/deploy/images/sb52/MBR%

4.      Issue cmd %{color:red}“bitbake innocomm-image-openmm-aiv”% to build images. (If not work please remove /build folder then re-build it)

5.      Flash images to verify the modification.*

*%{color:red}PS1. How to get 1145044992 ?%*

* %{background:lightgreen}2494527-258112+1=2236416*512(each block size is 512 bytes)=1145044992 bytes = 1092MB%

*%{color:red}PS2. 8200000 is max value in this partition table.%*

* Because this partition table is emmC 4GB example ,so it define 8200000 blocks (for satisfy multiples of 4096).

But emmC real size will less then that, therefore user partition end in %{color:red}8138815%.