#! /usr/local/bin/jtag

# Example: read whole 2M*16 flash on the AirCA8 wireless access point
# (CA8-4, Repotec RP-WA0804, OvisLink WLA-5000AP, ...).
# WARNING: flash writing with "flashmem" not tested yet, needs
# a volunteer with a bricked box (nothing to lose if it doesn't work).

# Xilinx-compatible JTAG cable, PCI parallel port recommended for speed
cable ppdev /dev/parport1 DLC5

# auto-detection not possible (device id = 0x00000001)
detect
include atheros/ar2312/ar2312

# initialize flash controller, see linux/include/asm-mips/ar5312/ar531xreg.h
poke 0x58400000 0x000e3ce1

# detect CFI flash (physical address 0x1fc00000, 16-bit access)
detectflash 0x3fc00000

# read flash (32-bit access, faster - only about one hour...)
readmem 0x5fc00000 0x400000 ar2312-flash.bin