[U-Boot-Users] Do we enable Interrupts in U-Boot?
Chetan Nanda
chetannanda at gmail.com
Tue Jan 8 16:27:29 CET 2008
On 1/8/08, Stefan Roese <sr at denx.de> wrote:
> On Tuesday 08 January 2008, Chetan Nanda wrote:
> > In that case there must be some threads that continuously check for
> > pending requests from UART, ETHERNET or so ..
>
> Threads? U-Boot is not an full blown OS. No threads are needed in this
> bootloader.
>
> > But I don't find any sort of threading inside u-boot code
>
> U-Boot "sits" there and waits for some input from the console, or for an
> ethernet reply packet. This can be done using polling without any performance
> penalty.
>
Thanks, for explaining the things,
But how can we wait for two events simultaneously (that is also under
a single thread of execution)? Can you give me pointer to the code ?
> Best regards,
> Stefan
>
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