Request to add scimmc driver to dreamshell

[SWAT]

(06.10.2015 17:07)cyrusmaintea писал(а):  https://www.dropbox.com/s/63p26fdxh84me8...c.zip?dl=0

thats the dir under the netbsd buildroot. contains original diff patch and the patched files.
scimci.c is one too look at first.

Yeah, SCI can drive SPI by native hardware.
I assumed this by docs for the CPU, but it's practical confirmation!
And can use DMA for data transfer and this very good.
But 500 KHz it's too slow Maybe can be increased? Need tests.