> On Tue, Jun 15, 2010 at 00:43:06, Brian Niebuhr wrote: > > > > I have compiled with the davinci_all_defconfig, but I don't > > > have EVMs > > > > for the other davinci platforms to test with. > > > > > > > > > > I was testing this series on OMAP-L137, OMAP-L138 and > DM365 EVMs and I > > > found that on all these EVMS, Interrupt mode has problems. > > > Driver works > > > fine in DMA and POLL modes. Some problems which I had > > > observed with the > > > old driver are gone now. > > > > Do you have any idea what errors you're seeing in interrupt mode? I > > went and retested interrupt mode with several devices on my > custom board > > and it still appeared to be working fine. It may be an > interaction with > > code outside the driver because I'm running the identical > driver code > > but I'm not running the latest kernel from the davinci git > repository. > > I'm trying to figure out if I can get my DA850 EVM back into a state > > where I can debug this. Thanks for any hints you can give! > > > > You may be knowing that on OMAP-L138 EVM, we have M25P64 > Flash on SPI. When > the driver is configured in Interrupt mode, kernel booting > just hangs. I > noticed that the SPI probe function is not coming out of > spi_bitbang_start() > call.
I configured the M25P64 on the DA850 EVM for both DMA and interrupt mode and my kernel still booted correctly. I wonder if your setting for intr_level is correct? For the DA850 it should be set to 1. I'm following up with a response to Nicolas showing the changes I made to the kernel to test this. Can you check if the changes you made match mine? Thanks, Brian _______________________________________________ Davinci-linux-open-source mailing list Davinci-linux-open-source@linux.davincidsp.com http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
