On Tue, Feb 14, 2017 at 12:57:36PM +0000, Alex wrote:
> From: Kolja Waschk <[email protected]>
> Sent: Tuesday, February 14, 2017 12:34 PM
> > On Tue, Feb 14, 2017 at 08:49:24AM +0000, Alex wrote:
> > > Hi,
> > > I want to recover the flash data from a router board.The CPU ist
> > > a MIPS 24kec Dual Core Lantiq/Infineon DANUBE-S XWAY (known as
> > > PSB 50712 or easy50712 or "unofficial AR8").There is no datasheet
> > > public. But I have the UrJTAG discover output from the device.
> > > How can I use this output to set the JTAG declarations like
> > > EJCONTROL?
> > > jtag> detect
> > > IR length: 10
> > > Chain length: 2
> > > Device Id: 00000000000000000000000110000011 (0x00000183)
> > > Unknown manufacturer! (00011000001) (/usr/share/urjtag/MANUFACTURERS)
> > > Device Id: 00000000000000000000000110000011 (0x00000183)
> > > Unknown manufacturer! (00011000001) (/usr/share/urjtag/MANUFACTURERS)
> >
> > > UrJTAG ouptut (OpenOCD shows IR length 5):
> >
> > > IR length: 10
> > > Chain length: 2
> >
> > So it is probably 2 cores x 5 bit. After manually defining "instruction
> > length 5" and part number ("part 0" or "part 1") you should be able to
> > get further.
> >
> > https://www.linux-mips.org/wiki/JTAG
> >
>
> Thank You! The part command worked!I managed to get the bus working with this
> sequence:
> detect
> part 0
> instruction length 5
> register BSR 1
> register BR 1
> register DIR 32
> register EJIMPCODE 32
> register EJADDRESS 32
> register EJDATA 32
> register EJCONTROL 32
> register EJALL 96
> register EJFASTDATA 33
> instruction BYPASS 11111 BR
> instruction SAMPLE/PRELOAD 00010 BSR
> instruction IDCODE 00001 DIR
> instruction EJTAG_IMPCODE 00011 EJIMPCODE
> instruction EJTAG_ADDRESS 01000 EJADDRESS
> instruction EJTAG_DATA 01001 EJDATA
> instruction EJTAG_CONTROL 01010 EJCONTROL
> instruction EJTAG_ALL 01011 EJALL
> instruction EJTAGBOOT 01100 BR
> instruction NORMALBOOT 01101 BR
> instruction EJTAG_FASTDATA 01110 EJFASTDATA
> instruction TCBCONTROLA 10000 BR
> instruction TCBCONTROLB 10001 BR
> instruction TCBDATA 10010 BR
> part 1
> instruction length 5
> register BSR 1
> register BR 1
> register DIR 32
> register EJIMPCODE 32
> register EJADDRESS 32
> register EJDATA 32
> register EJCONTROL 32
> register EJALL 96
> register EJFASTDATA 33
> instruction BYPASS 11111 BR
> instruction SAMPLE/PRELOAD 00010 BSR
> instruction IDCODE 00001 DIR
> instruction EJTAG_IMPCODE 00011 EJIMPCODE
> instruction EJTAG_ADDRESS 01000 EJADDRESS
> instruction EJTAG_DATA 01001 EJDATA
> instruction EJTAG_CONTROL 01010 EJCONTROL
> instruction EJTAG_ALL 01011 EJALL
> instruction EJTAGBOOT 01100 BR
> instruction NORMALBOOT 01101 BR
> instruction EJTAG_FASTDATA 01110 EJFASTDATA
> instruction TCBCONTROLA 10000 BR
> instruction TCBCONTROLB 10001 BR
> instruction TCBDATA 10010 BR
> part 1
> initbus ejtag
> part 0
> initbus ejtag
> part 1
> initbus ejtag
>
> output after the last initbus ejtag:
>
> ImpCode=01100000010000010100000000000000 60414000
> EJTAG version: 3.1
> EJTAG Implementation flags: R4k ASID_8 MIPS16 NoDMA MIPS32
> Processor entered Debug Mode.
> Initialized bus 2, active bus 0
> jtag>
> jtag> print
> No. Manufacturer Part Stepping Instruction
> Register
> -------------------------------------------------------------------------------------------------------------------
> 1 EJTAG_DATA
> EJDATA
>
> Active bus:
> *0: EJTAG compatible bus driver via PrAcc (JTAG part No. 1)
> start: 0x00000000, length: 0x20000000, data width: 8 bit
> start: 0x20000000, length: 0x20000000, data width: 16 bit
> start: 0x40000000, length: 0x20000000, data width: 32 bit
> jtag>
Is the above information something that should go
into the data/ directory of UrJTAG?
If so, what should be the manufacture name for 0x183 ?
@original poster ( alex / johannes ) :
Are you willing to test updated /usr/share/urjtag/MANUFACTURERS ?
Groeten
Geert Stappers
--
Leven en laten leven
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