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