Data inconsistency observed while performing to-device DMA with spi-nor (m25p80)

2015-07-26 Thread AYAN KUMAR HALDER
Hi, I am doing a DMA transfer (to device) using pl330 driver from memory(DDR) to device(m25p80, spi- nor). I am sending data in chunks of 256 bytes ( m25p80 - writesize) using scatter-gather mechanism. I see that when I try to write 8K of data, one or the other 256 bytes(or lesser) are not

Re: Data inconsistency observed while performing to-device DMA with spi-nor (m25p80)

2015-07-26 Thread Chetan Nanda
On Sun, Jul 26, 2015 at 5:02 PM, AYAN KUMAR HALDER ayankum...@gmail.com wrote: Hi, I am doing a DMA transfer (to device) using pl330 driver from memory(DDR) to device(m25p80, spi- nor). I am sending data in chunks of 256 bytes ( m25p80 - writesize) using scatter-gather mechanism. I see