On Mon, Apr 26, 2010 at 5:19 AM, Nori, Sekhar <[email protected]> wrote: > Hi Steve, > > On Mon, Apr 26, 2010 at 15:35:37, Steve Chen wrote: >> 2010/4/25 liuyue18301 <[email protected]>: >> > >> > hello Guys: >> > this is second time to turn to help on the same problem. >> > i want to know is there EMIF driver in the linux? and if i want to >> >> There is no EMIF driver. >> >> > send/recv data to the uarts which are expanded by FPGA ,how can i do it? >> >> The dm9000 driver on dm365 is on EMIF. Perhaps you can take a look. > > s/dm365/dm355 > >> >> > which driver should i create or modify EMIF driver or UART driver?i want to >> > write data to the EMIF in the application code,but i can't find the EMIF >> > driver in the linux. confused >> >> If I remember correctly (it has been over a year since I worked on >> DaVinci), devices on EMIF are accessed with 2 registers. First you >> configure the address you want to access in one registers, then you >> read/write the value in another. Again, take a look at the dm9000. >> It will probably give you some ideas what you need to do to get UART >> working on EMIF. > > Actually, there is just one access. You just choose the address > to be accessed based on which chip select you need asserted. This > information is present in the device memory map. > > I can see some signs of a fading memory :)
And perhaps of old age as well :-) Thanks for the corrections. Regards, Steve _______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
