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Type:
Bug
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Resolution: Fixed
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Priority:
High
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PDK
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PDK-13733
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PROCESSOR_SDK_09.00.00
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j784s4-evm
Description
The DDR performance is 30% lower with SBL when compared with SPL boot flow.
Resolution
- Linux uses GTC to measure the time while calculating DDR performance
- Linux expects/assumes GTC is running at 200 MHz whereas SBL was using 250 MHz
- Fixed this in SBL to avoid misinterpretation of DDR performance