Kernel update through serial port.

Deepak Shankar-TLS,Chennai. deepaks at
Tue Sep 16 23:13:19 CDT 2008

You are correct.
With the "loady" I'm able to download the images directly from minicom.
Here is what I did
EVM # loady Then in minicom I send the file /uImage.Now the image is
updated; I can go ahead with NAND write procedures after then.
I thank you a lot for this update


From: Steve Poulsen [mailto:spoulsen at] 
Sent: Wednesday, September 17, 2008 12:17 AM
To: Deepak Shankar-TLS,Chennai.
Cc: Joshua Hintze; davinci-linux-open-source at
Subject: Re: Kernel update through serial port.

I had better luck with ymodem than kermit when using minicom.  Use loady
and send the file similarly.  Make sure the ymodem binary is available
as well.   Minicom may not give you an error even if it is not

Deepak Shankar-TLS,Chennai. wrote: 

	Hi Josh,
	Thanks a lot for  update.
	I am trying the kermit mode - I did the following
	EVM # loadb
	Ready for binary (kermit) download to 0x80700000 at 115200bps
	Then in my minicom I did a Ctrl-A Z and choose the uImage in
location /uImage
	After this there is no more activity in the EVM# prompt.
	Should the uImage be put in some specific path or so?

	From: Joshua Hintze [mailto:joshh at] 
	Sent: Monday, September 15, 2008 9:59 PM
	To: Deepak Shankar-TLS,Chennai.;
davinci-linux-open-source at
	Subject: RE: Kernel update through serial port.

	I'm not sure about the Davinci (I haven't tried yet). But on
other projects, using the Gumstix processor, I was able to transfer the
kernel using Uboots Kermit serial protocol. I would think you could do
the same for U-boot.




	From: at
[ at linux.davincid] On Behalf Of Deepak Shankar-TLS,Chennai.
	Sent: Monday, September 15, 2008 10:38 AM
	To: davinci-linux-open-source at
	Subject: Kernel update through serial port.




	I'm a newbie to both Linux and davinci.

	Could someone tell me if its possible to update the U-Boot and
the Kernel through the serial download.

	My target board does not have an Ethernet port and it would not
be possible to me to do a tftp on it. 

	So the only possibility is JTAG, and I'm interested in onfield


	Please note, I'm not referring to the booting Linux from UART-
but to update the U-boot and the Kernel present in the NAND through

	Do  we have to do some tailoring in the U-boot coming with the
standard dvevm.

	Any other pointers are greatly welcome



	Deepak Shankar V



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