On Thursday 10 March 2016 10:35 AM, Vineet Gupta wrote: > +CC Noam > > On Wednesday 09 March 2016 10:51 PM, Lada Trimasova wrote: >> > Memory access primitives should use cpu_to_le16, cpu_to_le32, le16_to_cpu >> > and le32_to_cpu because it is not really guaranteed that drivers handles >> > any ordering themselves. > That is the driver issue. readxx as API simply returns data in native endianness. > We've had EZChip running big endian and so far and they didn't need this change. > >> > For example, serial port driver doesn't work when kernel is build for >> > arc big endian architecture. > Last I tested Big Endian on SDP with 8250 part + 8250 driver it was working fine. > I presume this is the systemC model for device and standard 8250 driver and very > likely the model is not fixed endian or something. > > Alexey knows about this stuff - this was discussed on lkml back in 2013 when he > was fighting the Xilinx systemAce driver endian issues > Do you need "native-endian" DT entry in nsimosci DT bindings for uart ?
