[U-Boot-Users] Re: where is the interrupt vectors?
Subject: Re: [U-Boot-Users] where is the interrupt vectors? To: u-boot-users@lists.sourceforge.net From: "KokHow Teh" KokHow.Teh@marconi.com Date: Thu, 24 Nov 2005 11:32:24 +0800
I want to support some perpherals which need use the I/O pins of INT. And it need to be allocated the vectors, depending on the INT ports. How does u-boot support this, and where I can find it?
Depending on your CPU architecture, interrupt/exception vectors are setup in start.S
Thank you for your reply ,but I think you misunderstood my question. What I said is the extern interrupts, and now I have know that U-BOOT is no support the interrupts, so it doesn't need the vectors.
regards
Terry
In message 1132812293.2550.20.camel@PC6 you wrote:
Thank you for your reply ,but I think you misunderstood my question.
No, it is you who does not understand.
What I said is the extern interrupts, and now I have know that U-BOOT is no support the interrupts, so it doesn't need the vectors.
You are wrong. You can use interrupts in U-Boot. There is even code in the examples directory which does so.
Best regards,
Wolfgang Denk
On Thu, 2005-11-24 at 08:47 +0100, Wolfgang Denk wrote:
In message 1132812293.2550.20.camel@PC6 you wrote:
Thank you for your reply ,but I think you misunderstood my question.
No, it is you who does not understand.
What I said is the extern interrupts, and now I have know that U-BOOT is no support the interrupts, so it doesn't need the vectors.
You are wrong. You can use interrupts in U-Boot. There is even code in the examples directory which does so.
Best regards,
Wolfgang Denk
It seems that I make a big mistake. I want to support an perpheral which connect with CPU through the INT I/O port. And I need allocate vector to it, then CPU know where to execute the interrupt subroutine,is it right? And there is many other interrupts happened like this from other device. I can't find where to allocate vectors for them. May be this job can be describe "register interrupt in U-Boot".
Thank you
Terry
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Wolfgang Denk