----- Original Message ----- From: "Talis, Gilles" <[email protected]> To: <[email protected]> Sent: Tuesday, February 09, 2010 3:06 PM Subject: OMAP3 Slave McSPI driver
> Hi, > > My customer is using Android 2.6.29 kernel from OMAPZOOM and is looking > for support for slave mode on the SPI driver. > I saw there were patches for this feature sent to this list, but I was > wondering if those patches were tested on 2.6.29. > These patches have not been specifically tested on 29 kernel, but you could give it a shot. Pl also look at the latest patches (V2) posted. > I am also looking for some kind of API usage guidelines. How to setup the > slave mode and how is OMAP notified that data have been received from > external master device? My customer plans to use this driver in interrupt > mode (no DMA needed). > To set any mcspi controller to slave mode, you need to modify arch/arm/mach-omap2/devices.c file and set mode to OMAP2_MCSPI_SLAVE. Typically gpio is used by master to notify the slave that it is ready to transfer data. On gpio interrupt slave client could issue spi_read/spi_write commands. Two modes are supported i.e PIO and DMA. Any specific reason not to use DMA mode. Thanks Hemanth > Thanks > Gilels. > > > > Texas Instruments France SA, 821 Avenue Jack Kilby, 06270 Villeneuve > Loubet. 036 420 040 R.C.S Antibes. Capital de EUR 753.920 > > > > -- > To unsubscribe from this list: send the line "unsubscribe linux-omap" in > the body of a message to [email protected] > More majordomo info at http://vger.kernel.org/majordomo-info.html > ------------------------------------------------------------------------------ The Planet: dedicated and managed hosting, cloud storage, colocation Stay online with enterprise data centers and the best network in the business Choose flexible plans and management services without long-term contracts Personal 24x7 support from experience hosting pros just a phone call away. http://p.sf.net/sfu/theplanet-com _______________________________________________ spi-devel-general mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/spi-devel-general
