source: svn/trunk/newcon3bcm2_21bu/dta/build/jt.cmd

set can-use-hw-watchpoints 1
set remote hardware-breakpoint-limit 2
set remote hardware-watchpoint-limit 2
set remotecache off
set trust-readonly-sections on
set endian little
#set endian big
set confirm off
#useful settings
#set disassemble-next-line on

#set debug remote 1
#set debug serial 1

define tconn
        dont-repeat
        target extended-remote 169.254.96.4:50000
end
document tconn
Connect to the target.
This command simply executes target extended-remote command. It is there for
convenience.
end

define tload
        dont-repeat
        monitor L
        set $pc=_start
#               set $pc=start
end

document tload
Load binary file in to the target memory.
File will be loaded at address that was given to JTAG server on comand line 
with -a switch. After file is loaded PC will be set to the symbol _start.
end

define taload
        monitor L,$arg0
        set $pc=0x$arg0
end

document taload
Load binary file in to the target memory at specified address.
File will be loaded at address that was specified. Note that address must
be hexdecimal without 0x prefix. After binary is loaded $pc will be set
to the load address.
end

define treset
        dont-repeat
#       monitor R
#       disconnect
#       shell sleep 3
#       tconn
        disconnect
        shell sleep 6
        tconn
end
document treset
Reset and run target.
This command should will reset target and run it after reset. Press Ctrl-C to
regain control over target after reset.
end

define trg
    monitor g
end
document trg
Display MIPS CP0 registers.
Display selected CP0 registers, not shown by "info registers" command.
end

define trun
    dont-repeat
    tload
    c
end
document trun
Load binary file and execute it.
File will be loaded at address that was given to JTAG server on comand line 
with -a switch. After file is loaded PC will be set to the symbol _start and
executed by jumping to that address.
end

define tcreset
    dont-repeat
    set $reset_ctrl = 0xb0404008
    set $sw_reset = 0xb0404014
    set *$reset_ctrl = 0x8
    set *$sw_reset = 0x80000000
    disconnect
    shell sleep 3
    tconn
end
document tcreset
Chip specific reset.
This command resets chip in a chip specific but more reliable way. This is 
done by wrting reset registers in SUN block. This may not work if you are 
using other than supported chip. If your JTAG supports hardware reset line 
this command is not needed.
Supported chip - BCM7002, BCM3545
end

define print-cause
    set $exccode=($arg0>>2)&0x1f
    printf "ExcCode %d ", $exccode
    if (1 == $exccode)
        printf "TLB modification"
    end
    if (2 == $exccode)
        printf "TLB (load)"
    end
    if (3 == $exccode)
        printf "TLB (store)"
    end
    if (4 == $exccode)
        printf "Address error (load)"
    end
    if (5 == $exccode)
        printf "Address error (store)"
    end
    if (6 == $exccode)
        printf "Bus error (instruction)"
    end
    if (7 == $exccode)
        printf "Bus error (data)"
    end
    if (8 == $exccode)
        printf "Syscall"
    end
    if (9 == $exccode)
        printf "Breakpoint"
    end
    if (10 == $exccode)
        printf  "Reserved instruction"
    end
    if (11 == $exccode)
        printf "Coprocessor unusable"
    end
    if (12 == $exccode)
        printf "Arithmetic Overflow"
    end
    echo \n
end
document print-cause
Decode ExcCode field and print in human readable form.
Usage: "print-cause $cause" or "print-cause value" 
end

define tawatch
    awatch $arg0
    printf "maint packet Z4,%08x,%x\n", &($arg0), $arg1
end

document tawatch
Set access watchpoint and print command for gdb
This macro is helper for setting access watchpoint with size greater than 
4 bytes. Gdb refuses to do this without any hacks. Macro takes 2 arguments
watchpoint address and watchpoint size. It will then set a normal watchpoint
so gdb can control it. It also will print a command which user must paste on
the console to set a watchpoint which monitors starting with address and 
within specified size.
end

define jcload
        dont-repeat     
        monitor L,81000000
        set $pc=0x81000000
end

document jcload
Load compressed binary
This command should be used to load specially built compressed binary with
decompressor. This binary is much smaller than original ram binary and will
load much faster. The load address and entry point for this binary are 
different than for an uncompressed binary and equal 0x81000000
end

define jcrun
        dont-repeat
        jcload
        hbreak bcm_main
        set $start_break = $bpnum
        disable
        enable $start_break
        c
        clear
        enable
        c
end

document jcrun
Run compressed binary
This command shouldbe used to run compressed binary. It will make sure that
all breakpoints that were set will be restored after decompression.
end

define sbp
        set $pc += 4
end
document sbp
Skip embedded breakpoint instrucution.
end

define xmodem 
# for 7002
        set *0xb0404090=$arg0
# for 7550
        set *0xb04040d0=$arg0
# for 7552
        set *0xb0404364=$arg0
end

tconn