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. > > Tested with: > nand: NAND device: Manufacturer ID: 0x2c, Chip ID: 0xdc (Micron > MT29F4G08ABADAWP), 512MiB, page size: 2048, OOB size: 64 > > Signed-off-by: Christian Hemp <c.hemp@xxxxxxxxx> Tested-by: Sam Ravnborg <sam@xxxxxxxxxxxx> We had it running over night - not a single DMA error. Tested with 16 different targets in an ON/OFF test. I do not have numbers for the ON/OFF cycles but it is more than 10 each. Previously we had a high frequency of these. And tonight there was none. Christian - if we ever meet in person I owe you a beer! Sam _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
