Kernel update through serial port.

Joshua Hintze joshh at imsar.com
Mon Sep 15 11:28:33 CDT 2008


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.

 

Josh

 

From: davinci-linux-open-source-bounces+joshh=imsar.com at linux.davincidsp.com
[mailto:davinci-linux-open-source-bounces+joshh=imsar.com at linux.davincidsp.c
om] On Behalf Of Deepak Shankar-TLS,Chennai.
Sent: Monday, September 15, 2008 10:38 AM
To: davinci-linux-open-source at linux.davincidsp.com
Subject: Kernel update through serial port.

 

Hi,

 

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 upgrades.

 

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 UART.

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

Any other pointers are greatly welcome

 

Cheers,

Deepak Shankar V

 


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