Hello Sam,
On 21.12.2016 23:29, Sam Ravnborg wrote:
Hi Christian.
On Wed, Dec 21, 2016 at 10:38:41PM +0100, Christian Hemp wrote:
The function "nand_enable_edo_mode" changed the NAND clk rate, without turning
it off. In this case it is posible to get the following errors:
MXS NAND: Error sending command
MXS NAND: Error sending command
MXS NAND: DMA read error
This can be fixed if the NAND clk is disabled before we change the clk
rate.
Very interesting.
I have ~50 targets and a few of these are used for power cycle tests.
On one of these targets I have seen this exact same pattern - once...
Can you give any hints that makes it simpler to verify your fix or anything?
To reproduce the issue and test the fix I reseted the board in a loop.
For this I added 'reset' to /env/bin/init. With 'reset" in /env/bin/init I
saw the issue after 1 - 2 Minutes.
Also I have done 1000 power cuts and resets without any error in our
test rack.
power cut:
1. start barebox to prompt
2. power cut
soft reset:
1. start barebox to prompt
2. reset
Christian
This is a board with i.MX6 SoloCore - where we have 2 GiB FLASH + 512 MB RAM.
Anyway - it saved my day to see this landing on the mailing list!
Sam
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