Wolfgang Denk wrote: >>Or what i have to modify to use in mpc5200 >> >> > >You need to write a new driver. > >
I have been doin such thing a while. The base idea is to hae similar subsystem tha i2c has. Least in my application i like to controll multiple diferent devices via spi and i like that the spi connected targets look a like "normal" devides to linux programs. At the moment i am working spi core and drivers for tsc2301 ( system management chip / adc/audio ), MMC ( multimedi card ) and frame buffer device for small 128x64 graphical LCD ( UC1606 Chip ) The thing that i am waiting is to get something clear to this DMA problem that has been discussed here lately. The MPC5200 SPI device does not support Bestcomm DMA at all but PSC can be used in SPI mode with DMA. With DMA i can update display or read MMC block with just one interupt without polling etc needed with normal SPI. Kate ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
