Re: [PATCH] dma: add new DMA control commands

From: Huang Shijie
Date: Thu Oct 18 2012 - 05:09:55 EST

ä 2012å10æ18æ 16:49, Marek Vasut åé:
Dear Huang Shijie,

ä 2012å10æ18æ 16:16, Marek Vasut åé:
So we can't stream data from the chip? About time to adjust the MTD
framework to allow that. Maybe implement a command queue?
IMHO, it's not possible. Because the READ-PAGE(00h-30h) command needs to
check the busy status
which means we have to stop in the middle, so we can not chain the all
the read-pages DMA commands.
Can the DMA not branch?
it's too complicated to the MTD layer, as well as the gpmi driver.

Best Regards
Huang Shijie

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