Improve memory performance on Renegade (roc-rk3328-cc) in current

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Tony McKahan
November 22, 2020, 4:06 PM

Yes, I was waiting for some feedback in case anything exploded, but in my board it is working perfectly.

Igor Pecovnik
November 22, 2020, 3:57 PM

This is done?

Tony McKahan
October 8, 2020, 5:50 AM
Edited

Issue was a bit more critical than we realized, incorrect dram settings were the cause of instability, and a regulator set too low disabled the 1056 opp. DMC devfreq isn’t very smart though, and seems to have simply left the frequency as set by the bootloader (333 MHz) due to this failure.

Looking at the vendor kernel and DRAM datasheet, I’ve increased the top end opp to 1068 MHz, upped the vdd_logic to 1.175V, and added a separate dtsi for the renegade’s dram skew values.

 

ix.io/2A3F

Igor Pecovnik
May 26, 2020, 6:23 AM
Edited

Yes, no worries.

I am cleaning things to be able to make a copy/paste → release.doc

Piotr Szczepanik
May 26, 2020, 6:13 AM

I did not find the time this week eventually

I totally agree with the assessment as non critical - if one wants to make the memory faster right now it can be done easily via sysfs.

Done

Assignee

Tony McKahan

Reporter

Piotr Szczepanik

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Priority

Medium