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7 commits

Author SHA1 Message Date
Michael Scire c5edb031fa fusee: restore DRAM to 204MHz before starting main cpu on Mariko (closes #1600).
Nintendo's Mariko tables result in trained frequency of 1599999 instead of 1600000.

PCV checks for rate == 1600000 exactly, when doing EMC init.

Thus EMC init does not succeed if we are trained to 1600000.

PCV has a fudge factor of 1000 used in SetEmcDvfsFreq, but this is not used in InitEmcDvfs.

This failure means that PCV cannot change rate back to 204MHz before sleep, and then after
wake extremely degraded performance is observed.

Restoring DRAM to 204MHz before boot causes EMC init to succeed/fixes performance degradation.
2021-08-30 07:19:28 -07:00
hexkyz dc4dbe29ae Move memory training code into it's own stage (fusee-mtc) 2019-07-26 20:38:15 +01:00
TuxSH d9c2a54464 Make a top-level make build everything in order 2018-05-15 01:30:56 +02:00
Michael Scire b85567dff3 Remove stage3 refs from Makefile 2018-04-09 15:16:51 -06:00
Michael Scire 18f1274587 Change fusee folder naming 2018-04-07 21:45:57 -06:00
Michael Scire 2c7d6dc9b7 Sketch out more of fusee 2018-04-07 15:43:54 -06:00
TuxSH 171c82ea9e Add build system for fusee 2018-03-14 21:14:02 +01:00