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

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...)