
Hi, I have a problem that I am trying to solve with U-boot. What I have is a Ubicom processor with 128 MB of ram, and USB. What I need to do is load a 12 MB file into ram, and then program the flash with it. This version of u-boot was supplied by Ubicom for their chip. Every time I try to load the file into ram from a FAT formatted USB drive, no matter what the starting address, u-boot crashes. What I need to know is this even possible? Has anyone else had this problem? Should I attempt to try the latest version of u-boot? Ubicom has been no help at all.
Dennis Kerrisk | Senior Linux Firmware Engineer | PS Audio 4826 Sterling Drive, Boulder, CO 80301 Ph 720-406-8946 x123 www.psaudio.comhttp://www.psaudio.com dennis@psaudio.commailto:jim@psaudio.com

Dear Dennis Kerrisk,
In message E1318E0A083BFB4497F69194D590CD8C586EEE98@MANDI.psaudio.com you wrote:
I have a problem that I am trying to solve with U-boot. Wha
t I have is a Ubicom processor with 128 MB of ram, and USB. What I need to do is load a 12 MB file into ram, and then program the flash with it. This
Please restrict your line length to some 70 characters or so.
version of u-boot was supplied by Ubicom for their chip. Every time I try t o load the file into ram from a FAT formatted USB drive, no matter what the starting address, u-boot crashes. What I need to know is this even possible? Has anyone else had this problem ? Should I attempt to try the latest version of u-boot? Ubicom has been no help at all.
Of course it is possible that U-Boot crashes, for example when there are hardware problems, or when there are bugs in the port to your board, or eventually even if you are running into a bug in common code.
If your board is supported in mainline, then running the latest version is strongly recommended.
Best regards,
Wolfgang Denk

Unfortunately the Ubicom board is not supported in the mainline. So I would have to report it. Does this work on a board that supports Mainline code? I would like to eliminate that as the problem. My guess Is that there is a bug in the Ubicom port, probably dealing with The USB. I seem to be able load small files 40k with no problem. I really would like to know if anyone has loaded large files With mainline code so I can eliminate u-boot code .
Dennis Kerrisk | Senior Linux Firmware Engineer | PS Audio 4826 Sterling Drive, Boulder, CO 80301 Ph 720-406-8946 x123 www.psaudio.com dennis@psaudio.com
-----Original Message----- From: Wolfgang Denk [mailto:wd@denx.de] Sent: Tuesday, September 07, 2010 8:59 AM To: Dennis Kerrisk Cc: 'u-boot@lists.denx.de' Subject: Re: [U-Boot] USB and FAT
Dear Dennis Kerrisk,
In message E1318E0A083BFB4497F69194D590CD8C586EEE98@MANDI.psaudio.com you wrote:
I have a problem that I am trying to solve with U-boot. Wha
t I have is a Ubicom processor with 128 MB of ram, and USB. What I need to do is load a 12 MB file into ram, and then program the flash with it. This
Please restrict your line length to some 70 characters or so.
version of u-boot was supplied by Ubicom for their chip. Every time I try t o load the file into ram from a FAT formatted USB drive, no matter what the starting address, u-boot crashes. What I need to know is this even possible? Has anyone else had this problem ? Should I attempt to try the latest version of u-boot? Ubicom has been no help at all.
Of course it is possible that U-Boot crashes, for example when there are hardware problems, or when there are bugs in the port to your board, or eventually even if you are running into a bug in common code.
If your board is supported in mainline, then running the latest version is strongly recommended.
Best regards,
Wolfgang Denk

Dear Dennis Kerrisk,
In message E1318E0A083BFB4497F69194D590CD8C586EF0EA@MANDI.psaudio.com you wrote:
Unfortunately the Ubicom board is not supported in the mainline. So I would have to report it. Does this work on a board that supports Mainline code? I would like to eliminate that as the problem. My guess Is that there is a bug in the Ubicom port, probably dealing with The USB. I seem to be able load small files 40k with no problem. I really would like to know if anyone has loaded large files With mainline code so I can eliminate u-boot code .
Yes, this works well on many boards.
Best regards,
Wolfgang Denk
participants (2)
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Dennis Kerrisk
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Wolfgang Denk