JTAG instructions and hints
From NAS-Central Buffalo - The Linkstation Wiki
| This article is currently a stub. You can help this Wiki by expanding it . This template will categorize articles that include it into Category:Stubs. |
Contents |
Introduction
TODO: Add generic info about JTAG and why it safes ones ass if he messes with the flash
Hardware
PPC-based-boxes
JTAG-cable from tampakuro/kuroguy
JTAG10-jtag-cable from http://www.soc-machines.com/
LS1
TODO: Add info about the additional Hardware mods needed to make JTAG working. Hint: bridge! + needed info about Flash structure
HG/HS
1) Installing headers TODO: what needs to be bridged?
Terastation
TODO: add specific Info if additional hardware mods are needed. + needed info about Flash structure
Terastation Pro v1
TODO: add specific Info if additional hardware mods are needed. + needed info about Flash structure
Mipsel-based boxes
TODO: Add info about the JTAG cable that works on the + needed info about Flash structure
LS2
Arm-based boxes
Currently we do not know if there are JTAG-Ports anywhere on the board. Tampakuro is tries to find out the JTAG Port of the LS Pro.
LS Pro/LS Live (arm9)
Flash structure
For the LSProV2, here is the output of flinfo while in u-boot:
Marvell>> flinfo
Bank # 1: SST SST39VF020 (2 Mbit)
Size: 256 kB,Bus Width: 1, device Width: 1.
Flash base: 0xfffc0000,Number of Sectors: 64 Type: REGULAR.
Sector Start Addresses:
00000000 (RO) 00001000 (RO) 00002000 (RO) 00003000 (RO) 00004000 (RO)
00005000 (RO) 00006000 (RO) 00007000 (RO) 00008000 (RO) 00009000 (RO)
0000a000 (RO) 0000b000 (RO) 0000c000 (RO) 0000d000 (RO) 0000e000 (RO)
0000f000 (RO) 00010000 (RO) 00011000 (RO) 00012000 (RO) 00013000 (RO)
00014000 (RO) 00015000 (RO) 00016000 (RO) 00017000 (RO) 00018000 (RO)
00019000 (RO) 0001a000 (RO) 0001b000 (RO) 0001c000 (RO) 0001d000 (RO)
0001e000 (RO) 0001f000 (RO) 00020000 (RO) 00021000 (RO) 00022000 (RO)
00023000 (RO) 00024000 (RO) 00025000 (RO) 00026000 (RO) 00027000 (RO)
00028000 (RO) 00029000 (RO) 0002a000 (RO) 0002b000 (RO) 0002c000 (RO)
0002d000 (RO) 0002e000 (RO) 0002f000 (RO) 00030000 (RO) 00031000 (RO)
00032000 (RO) 00033000 (RO) 00034000 (RO) 00035000 (RO) 00036000 (RO)
00037000 (RO) 00038000 (RO) 00039000 (RO) 0003a000 (RO) 0003b000 (RO)
0003c000 (RO) 0003d000 (RO) 0003e000 (RO) 0003f000
Directions and Background for JTAG Operations
INCOMPLETE - Do Not Attempt At This Time
- These directions have been tested and checked on a LSProV2, with a Ubuntu 7.10 box (x86) and an Olimex ARM-USB-TINY jtag/usb programmer/debugger. Parallel port debuggers are certainly an option, but will probably yield lower speeds.
Terastation Pro v2/Terastation Live (arm11)
TODO: info about Flash structure - ANYONE ALREADY HAS ONE?
Software
See JTAG Software
PPC-based-boxes
How to use the JTAG-Tools
TODO: we need to link + describe either how to compile the tools and how to use the precompiled tools from the download-section
LS2 (mipsel-based)
How to use HairyDairyMaids debrick
TODO: adding info about how to use it
TIPS
Flashing the bootloader only
Updating via JTAG is very slow. This is not really surprising as the JTAG protocol is a bit-level serial protocol. Writing the firmimg.bin file can easily take 24 hours or longer.
TODO: because we can flash the firmimg.bin much faster from UBoot
|
| This article is currently a stub. You can help this Wiki by expanding it . This template will categorize articles that include it into Category:Stubs. |
