On 05/03/2010 12:09, Rishi Dhupar wrote:
Strange question but I am using an OMAP 3530 and the boot process currently is from TI's X-Loader to U-Boot to Linux.
What I want is to have two different versions of U-Boot, an extremely optimized and small one (to reduce boot time) but then also a debug version that has a built in device test suite and allows updating of the Linux kernel.
The optimized version would boot first and then check if a GPIO is set, if so then it would boot into the debug U-Boot to perform tests or software updates.
Anyone do anything like this or is it even possible?
Certainly possible. Fairly trivial. Just put two builds in your flash and ramload the larger one when required - just like when testing a new version of U-Boot before committing to flash.
But is it really worth the hassle? Is the network code really that large, or startup time really significantly longer in your 'debug' version?
I.