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Linux / tda2x Fast boot

Hi, all,

I use the SDK 3.0.5 and turn on the fast boot function in my TDA2x board.

I used the core-tex A15 u-boot to load the IPU/DSP firmware and boot them.

After the Linux kernel boot finished, I get the message

 2.713536 s:  ***** IPU2 Firmware build time 19:56:30 Jun 18 2019
 2.713688 s:  *** SYSTEM: CPU Frequency <ORG = 212800000 Hz>, <NEW = 16393 Hz>
 2.716891 s:  SYSTEM: System Common Init in progress !!!

The IPU2 frequency is too slow, but the other core frequency the correct

 2.589123 s:  ***** DSP1 Firmware build time 19:54:43 Jun 18 2019
 2.589214 s:  *** SYSTEM: CPU Frequency <ORG = 600000000 Hz>, <NEW = 600000000 Hz>
 2.589489 s:  SYSTEM: System Common Init in progress !!!

how can I change the IPU2 frequency  to correct setting?

*** SYSTEM: CPU Frequency <ORG = 212800000 Hz>, <NEW = 212800000 Hz>