Hello JHY,
Please download Linux SDK 1.7 from Linux® SDK for QorIQ Processors v1.7|Freescale .
It is free for use.
Regarding how to install and use QorIQ Linux SDK, please refer to this note QorIQ Linux SDK 1.6 Working With Yocto.
QorIQ SDK ISOs are also included in EVK, if you buy P4080DS.
Have a great day,
Yiping
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