How to find which is the source file in oredr to create bl2_qspi.pbl image

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Hello,
I need help locating the source file that generates the bl2_qspi.pbl image =
for the LS1012AFRWY board. Can anyone please help me with this.
Thank You.

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<div>Hello,<br />I need help locating the source file that generates the <c=
ode>bl2_qspi.pbl</code> image for the LS1012AFRWY board. Can anyone please =
help me with this.</div>
<div>Thank You.</div>

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