[U-Boot-Users] booting u-boot from internal flash on M5282EVB
I'm struggling trying to get U-Boot to boot from the internal flash of the M5282EVB. Can anyone get me going in the right direction?
Thank you!
Hello David,
the original EVB implementation doen't support this. But you can use my patches
MCF5282 without reloader news://news.gmane.org:119/42F75DFA.80002@bus-elektronik.de
and
New Board (EB+MCF-EV123 based on Frescale MCF5282) news://news.gmane.org:119/42F75E25.2040301@bus-elektronik.de
to implement this.
The EB+MCF-EV123 Board can boot from internale and externel FLASH. For details please read the code.
regards Jens David Peters schrieb:
I'm struggling trying to get U-Boot to boot from the internal flash of the M5282EVB. Can anyone get me going in the right direction?
Thank you!
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the original EVB implementation doen't support this. But you can use my patches
MCF5282 without reloader news://news.gmane.org:119/42F75DFA.80002@bus-elektronik.de
and
New Board (EB+MCF-EV123 based on Frescale MCF5282) news://news.gmane.org:119/42F75E25.2040301@bus-elektronik.de
to implement this.
The EB+MCF-EV123 Board can boot from internale and externel FLASH. For details please read the code.
regards Jens David Peters schrieb:
I'm struggling trying to get U-Boot to boot from the internal flash of
the
M5282EVB. Can anyone get me going in the right direction?
Where do patches get put when they are uploaded? I've searched around SourceForge and haven't found anything.
In message 4407sf$972for@mxip24a.cluster1.charter.net you wrote:
Where do patches get put when they are uploaded? I've searched around SourceForge and haven't found anything.
They get archived with the mailing list - see for example on gmane.
Best regards,
Wolfgang Denk
the original EVB implementation doen't support this. But you can use my patches
MCF5282 without reloader news://news.gmane.org:119/42F75DFA.80002@bus-elektronik.de
and
New Board (EB+MCF-EV123 based on Frescale MCF5282) news://news.gmane.org:119/42F75E25.2040301@bus-elektronik.de
to implement this.
The EB+MCF-EV123 Board can boot from internale and externel FLASH. For details please read the code.
regards Jens David Peters schrieb:
I'm struggling trying to get U-Boot to boot from the internal flash of
the
M5282EVB. Can anyone get me going in the right direction?
I'm still not having any luck. I downloaded the patch and installed it and everything looks right. I'm trying to start the evb as if there wasn't any external ram or flash. We have a project coming up that needs to run the 5282 in single-chip mode. I suspect that I'm not defining the base addresses correctly or TEXT_BASE. Can anyone help any further?
Thank you!
Hello
I'm trying to start the evb as if there wasn't any external ram or flash. We have a project coming up that needs to run the 5282 in single-chip mode.
U-boot needs more RAM than 64K. Why? U-Boot copies itself to RAM and starts this ram copy.
Regards Jens
Hello
I'm trying to start the evb as if there wasn't any external ram or
flash.
We have a project coming up that needs to run the 5282 in single-chip
mode.
U-boot needs more RAM than 64K. Why? U-Boot copies itself to RAM and starts this ram copy.
Regards Jens
That's what I was afraid of.
I was able to get u-boot to start coming up. The only way I made it happen was by changing: Move.l #(CFG_INT_FLASH_BASE + 0x21), %d0 To Move.l (#CFG_INT_FLASH_BASE + 0x161), %d0
I downloaded CodeWarrior and looked at the code that was generated and that is what they used. I haven't looked into it at all.
participants (3)
-
David Peters -
Jens Scharsig -
Wolfgang Denk