[66AK2H14]Ethernet fail when DDR3A_REMAP_EN = 0

Sung-IL

Dear Champs,

My customer found All ethernet ports were not work properly in their custom board when they set DDR3A_REMAP_EN = 0 although it works well with DDR3A_REMAP_EN = 1.

I think it was caused by memory mismatch of ARM view and SoC view because ARM view was changed to DDR3B memory in 0x8000 0000 although SoC view is still DDR3A, but I want to check with you.

Could you please confirm if i'm correct and do you think there is possibility that their ethernet fails caused by this memory region mismatch between ARM view and SoC view?

Thanks and Best Regards,

SI.

over 8 years ago

0 Cvetolin Shulev-XID over 8 years ago

TI__Guru 65405 points

Hi SI,

I've forwarded this to the ethernet experts. Their feedback should be posted here but could you add information about which SDK your customer using.

BR
Tsvetolin Shulev

0 Sung-IL over 8 years ago in reply to Cvetolin Shulev-XID

TI__Mastermind 30810 points

Hi Tsvetolin Shulev,

Thanks for response.
They are using MCSDK 3.1.4.

Thanks and Best Regards,
SI.

0 lding over 8 years ago in reply to Sung-IL

TI__Guru* 95265 points

SI,

Yes, this is probably the cause "ARM view was changed to DDR3B memory in 0x8000 0000 although SoC view is still DDR3A" and DDR3B has no cache coherency like DDR3A.

Regards, Eric

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[66AK2H14]Ethernet fail when DDR3A_REMAP_EN = 0