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Bootloader building and flashing
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petri
Joined: 27 Jan 2012, 16:38
Posts: 4
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Where is the source tree for u-boot for carambola?
What is the recommended method for flashing u-boot on the board? What is the method for reflashing after trying out a bad version of u-boot?
I wish to add functionality in u-boot stage for parts on a custom baseboard, so factory flashed u-boot won't do.
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| 27 Jan 2012, 16:46 |
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gedass
Joined: 07 Dec 2011, 16:01
Posts: 525
Location: Lithuania
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| 27 Jan 2012, 16:51 |
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petri
Joined: 27 Jan 2012, 16:38
Posts: 4
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Can you post a link to this Ralink SDK / source?
How do I connect JTAG probe on the module? Is there a header on the module or the development board for this?
How do I enable JTAG? The SoC has a default of JTAG_GPIO_MODE of 0 where JTAG pins are repurposed for GPIO?
I do have a JTAG tooling that I've used successfully for flashing other modules.
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| 27 Jan 2012, 17:15 |
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gedass
Joined: 07 Dec 2011, 16:01
Posts: 525
Location: Lithuania
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| 27 Jan 2012, 17:49 |
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petri
Joined: 27 Jan 2012, 16:38
Posts: 4
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If you can't share the SDK, are there any other ways for me to obtain the source code for u-boot on the board?
Regarding JTAG on the test points. Do you have any documentation on the test points? Which one is which signal? Can you share your BDI config file?
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| 27 Jan 2012, 18:04 |
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gedass
Joined: 07 Dec 2011, 16:01
Posts: 525
Location: Lithuania
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| 27 Jan 2012, 18:30 |
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petri
Joined: 27 Jan 2012, 16:38
Posts: 4
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| 04 Feb 2012, 09:12 |
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gedass
Joined: 07 Dec 2011, 16:01
Posts: 525
Location: Lithuania
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TP1 EJTAG-TRSTN
TP2 EJTAG-TDI
TP3 EJTAG-TDO
TP4 EJTAG-TMS
TP5 EJTAG-TCK
TP6 EJTAG-nRESET
TP7 EJTAG-DINT
TP8 GND
TP9 3V3
Attachments:
RT3052.rar [1.17 KiB]
Downloaded 448 times
Carambola_JTAG.jpg [ 146.62 KiB | Viewed 5498 times ]
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| 04 Feb 2012, 10:39 |
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Theo
Joined: 26 Dec 2011, 16:49
Posts: 11
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I just setup an ubuntu system from scratch for building new images, following the instructions 'where to start' from the WIKI. Building the image failed because the toolchain cross compiler was missing. I think that 'make toolchain/install' should be included in the wiki
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| 24 Mar 2012, 21:49 |
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Sprite_tm
Joined: 25 Mar 2012, 17:37
Posts: 45
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| 11 Apr 2012, 19:53 |
 
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