1.FreeRTOS porting on OpenRISC
FreeRTOS_OpenRISC.patch patch against FreeRTOS V8.2.0 source directory
unzip FreeRTOSV8.2.0.zip
cd FreeRTOS8.2.0/FreeRTOS/Demo/Source
patch -p0 < openrisc.patch
cd Source
2.LWIP sys_arch port on OpenRISC
LWIP OpenRISC.patch patch against LWIP V1.4.1 ports directory
copy sys_arch.c in lwip/ports into
lwip/contrib/port/FreeRTOS/OpenRISC in OpenRISC folder.