Thread (33 messages) flat view 33 messages, 7 authors, 2011-08-15

GPMI-NAND Status?

From: Huang Shijie <hidden>
Date: 2011-08-09 06:36:19

Hi Koen:
Hi,

On Mon, Aug 8, 2011 at 12:37 PM, Huang Shijie[off-list ref]  wrote:
quoted
Hi,
quoted
On my target, the mxs-dma is working for sdio until the gpmi-nand
gives a timeout. After that the dma for sdio is *not fully* working
anymore.
We need more log in following aspects:
[1] apbh-dma registers
[2] clk registers
[3] gpmi registers

Please git-apply the patch in the attachment.
It will print out more DMA information WHEN dma-timeout occur.
Don't get it. What exactly are you trying to dump?
This patch dumps CTRL0, CTRL1, CTRL2, DEVSEL but also some registers
of APBH channel0 which is reserved....
sorry, I intended to print out the channel 4(NAND_DEVICE0).

I want to know that:
  When the dma timeout occurs, whether it caused by the GPMI or by the 
DMA itself.


Please try the new patch.

Best Regards
Huang Shijie
Then it prints some debug info on channel 1 (ssp1) and then alle
channel 2 register except the debug register (ssp2 = not used here).

What info do you need?

Br,
Koen
quoted
Best Regards
Huang Shijie
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