Messages in this thread | | | From | WANG YiFei <> | Subject | Help about chip select on SPI slave devices | Date | Sat, 16 Oct 2010 18:33:22 +0800 |
| |
Hi,
We have a board which has 1 SPI master controller and 4 SPI slave devices, and we'd like to use 2 GPIOs to demux to chip select these slave devices. Can anyone tell me if current powerpc dts support demuxer for chip select for spi slave devices? So far as I know, in dts, SPI master can only use 1 to 1 GPIO to CS(then needs 4 GPIOs).
Thanks in advance, YiFei
| |