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Linux accessing both RAM chips on the ADSP-SC580 EZBoard

Question asked by SHM@Nautel on Oct 28, 2016
Latest reply on Nov 3, 2016 by HaoLiang

I'm curious to know if it is possible to enable Linux to access both the DDR3 RAM chips that are on the SC589 Evaluation Board at the same time. The default configurations have Linux being able to use the first RAM Chip (Address space 0x80000000 - 0x8FFFFFFF) in the LPC version of the chip and the second RAM chip (Address space 0xC0000000 - 0xCFFFFFFF) for the HPC version.

 

Is it possible to configure things so Linux can access both RAM chips or is this not possible because the memory addresses are not contiguous? The only examples I can find use either a single chip with contiguous memory addressing or a series for chips that form a contiguous memory space.

 

Any assistance would be appreciated.

 

Thanks,

Scott 

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