Re: [PATCH] fdc: support READ command with VERIFY DMA mode

2019-10-29 Thread Hervé Poussineau
Le 29/10/2019 à 12:00, John Snow a écrit : > > > On 10/20/19 2:38 AM, Sven Schnelle wrote: >> While working on the Tulip driver i tried to write some Teledisk images to >> a floppy image which didn't work. Turned out that Teledisk checks the written >> data by issuing a READ command to the FDC but

Re: [PATCH] fdc: support READ command with VERIFY DMA mode

2019-10-29 Thread John Snow
On 10/20/19 2:38 AM, Sven Schnelle wrote: > While working on the Tulip driver i tried to write some Teledisk images to > a floppy image which didn't work. Turned out that Teledisk checks the written > data by issuing a READ command to the FDC but running the DMA controller > in VERIFY mode. As w

[PATCH] fdc: support READ command with VERIFY DMA mode

2019-10-19 Thread Sven Schnelle
While working on the Tulip driver i tried to write some Teledisk images to a floppy image which didn't work. Turned out that Teledisk checks the written data by issuing a READ command to the FDC but running the DMA controller in VERIFY mode. As we ignored the DMA request in that case, the DMA trans