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Diffstat (limited to 'bsps/powerpc/virtex4/README')
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diff --git a/bsps/powerpc/virtex4/README b/bsps/powerpc/virtex4/README new file mode 100644 index 0000000000..68a0c24e2e --- /dev/null +++ b/bsps/powerpc/virtex4/README @@ -0,0 +1,86 @@ +# Adapted from virtex BSP + +BSP NAME: virtex4 +BOARD: N/A +BUS: N/A +CPU FAMILY: ppc +CPU: PowerPC 405D5 +COPROCESSORS: N/A +MODE: 32 bit mode + +DEBUG MONITOR: + +PERIPHERALS +=========== +TIMERS: 405 internal +SERIAL PORTS: none +REAL-TIME CLOCK: none +DMA: Xilinx virtex internal +VIDEO: none +SCSI: none +NETWORKING: none + +DRIVER INFORMATION +================== +CLOCK DRIVER: PPC Decrementer +IOSUPP DRIVER: N/A +SHMSUPP: N/A +TIMER DRIVER: N/A +TTY DRIVER: N/A + +STDIO +===== +PORT: N/A +ELECTRICAL: N/A +BAUD: N/A +BITS PER CHARACTER: N/A +PARITY: N/A +STOP BITS: N/A + +Notes +===== + +Board description +----------------- +clock rate: 350 MHz +ROM: N/A +RAM: 128MByte DRAM + +Virtex only supports single processor operations. + +Porting +------- +This board support package is written for a naked Virtex 4/PPC FPGA +system. The rough features of such a board are described above. +The BSP itself makes no assumptions on what is loaded in the FPGA, +other than that the CPU has access to some memory, either on-board +or external, from which code can be run. + +This BSP has been constructed so that an application of both firmware +and software can be layered on top of it by supplying implementations +for the various 'weak' symbols. These symbols are prefaced with the +term 'app_'. Applications can thus be built outside of the RTEMS +directory tree by linking with the appropriate libraries. + +The linkcmds file describes the memory layout. Included in this +definition is a section of memory named MsgArea. Output sent to +stdout is recorded in this area and can be dumped using the JTAG +interface, for example. + +For adapting this BSP to other boards, the following files should be +modified: + +- c/src/lib/libbsp/powerpc/virtex4/startup/linkcmds + for the memory layout required + +- c/src/lib/libbsp/powerpc/virtex4/startup/bspstart.c + Here you can select the clock source for the timers and the + serial interface (system clock or external clock pin), the + clock rates, etc. + +- c/src/lib/libbsp/powerpc/virtex4/include/bsp.h + some BSP-related constants + +- c/src/lib/libbsp/powerpc/virtex4/* + well, they should be generic, so there _should_ be no reason + to mess around there (but who knows...) |