Hello, ext Hemanth V wrote: > From: "Aaro Koskinen" <[email protected]> >> From: Eero Nurkkala <[email protected]> >> >> When data is read through DMA, the last element must be read separately >> through the RX register. It cannot be transferred by the DMA. For further >> details see e.g. OMAP3430 TRM. > > Could you provide the section number and the version of TRM you are > referring to.
Table 19-16 and section 19.6.2.5.1 in the public TRM. >> Without the fix the driver causes extra clocks to be clocked to the >> bus after DMA RX operations. This can cause interesting behaviour with >> some devices. > > Could you provide more details on the errors seen i.e is the transfer > aborted There is an extra word, which a device can interpret as a command. Also if the word size != command size the device can hang. Unless the device hangs, you may not even notice anything. A. ------------------------------------------------------------------------------ Crystal Reports - New Free Runtime and 30 Day Trial Check out the new simplified licensing option that enables unlimited royalty-free distribution of the report engine for externally facing server and web deployment. http://p.sf.net/sfu/businessobjects _______________________________________________ spi-devel-general mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/spi-devel-general
