bsps: Move documentation, etc. files to bsps

This patch is a part of the BSP source reorganization.

Update #3285.

bsps/nios2/README

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+#  Goal is to have BSPs build almost completely automatically from a template
+#  and information that comes from SOPC Builder as a .PTF file. Most of the
+#  code will go to a shared/ BSP directory.
+#
+#  Ideally, updates to the PTF shouldn't cause any pain for the maintainer
+#  of a specific BSP (possibly with enhancements not covered by the
+#  automatic BSP creation).
+#
+#  Some first steps toward utilizing SOPC Builder PTF output can be found
+#  in top level /tools/cpu/nios2. Also see the README there.
+#
+#   Implemented (in shared/ subdirectory)
+#     Clock driver
+#     Timer driver
+#     Console via JTAG UART
+#
+#   Todo;
+#     Support more peripherals. My priorities:
+#       - (improve) Altera Avalon JTAG UART
+#       - Altera Avalon UART
+#       - OpenCores.org I2C Master
+#       - Altera SPI Core / EPCS Configuration Device
+#       - OpenCores.org 10/100 Ethernet MAC (use existing driver)
+#       - (more) Altera Avalon Timer
+#
+#     Put all drivers aside in a shared/ subdirectory.
+#     Update the "times" file for NIOS2 with and without icache.
+#
+#   Missing (although it looks like it's there)
+#     Data cache handling (for now, don't use the "fast" NIOS2)
+#     SHM support (just taken over the code from no_cpu/no_bsp)
+#
+#  Kolja Waschk, 6/2006
+#    
+
+BSP NAME:           nios2_eb2_1
+BOARD:              Altera Instruction Set Simulator Default plus second timer
+BUS:                Avalon
+CPU FAMILY:         nios2
+CPU:                small
+COPROCESSORS:       none
+MODE:               32 bit mode
+
+DEBUG MONITOR:      none
+
+PERIPHERALS
+===========
+TIMERS:             Altera Avalon Timer
+  RESOLUTION:         .0001 microseconds
+SERIAL PORTS:       Altera Avalon JTAG UART
+REAL-TIME CLOCK:    none
+DMA:                none
+VIDEO:              none
+SCSI:               none
+NETWORKING:         none
+
+DRIVER INFORMATION
+==================
+CLOCK DRIVER:       Altera Avalon Timer
+IOSUPP DRIVER:      none
+SHMSUPP:            polled
+TIMER DRIVER:       Altera Avalon Timer
+TTY DRIVER:         none
+
+STDIO
+=====
+PORT:               Console port 0
+ELECTRICAL:         JTAG
+BAUD:               115200
+BITS PER CHARACTER: 8
+PARITY:             None
+STOP BITS:          1
+
+NOTES
+=====
+

bsps/nios2/nios2_iss/nios2_iss.sh

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+#!/bin/sh
+IOD=jtag_uart_0
+PTF=nios2_iss.ptf
+EXE="$1"
+# e.g. hello.nxe
+nios2-iss -c --stdin=${IOD} --stdout=${IOD} --stderr=${IOD} -f "${EXE}" -p "${PTF}"