In message <[EMAIL PROTECTED]> you wrote:
>
> So if someone enable a interrupt and handled it properly then at the
> time of interrupt handler will be called, but how then control reaches
> back to u-boot original task that was running prior to interrupt
That's just a normal return from interrupt,
On Tue, May 20, 2008 at 2:53 PM, Wolfgang Denk <[EMAIL PROTECTED]> wrote:
> In message <[EMAIL PROTECTED]> you wrote:
>>
>> as i have mentioned, u-boot do not handle any interrupt, and neither
>
> In this general form, the statement is wrong.
>
> Depending on architecture, U-Boot does implement and
In message <[EMAIL PROTECTED]> you wrote:
>
> No, the U-Boot process scheduler or realtime kernel also doesn't use
> interrupts because the is no kernel. Everything is based on a main loop.
Actually U-Boot has neither a concept of processes or tasks or
scheduling or whatever. U-Boot is str
In message <[EMAIL PROTECTED]> you wrote:
>
> as i have mentioned, u-boot do not handle any interrupt, and neither
In this general form, the statement is wrong.
Depending on architecture, U-Boot does implement and use interrupts.
It even exports an interface to standalone applications which all
Hello!
loody schrieb:
> As far as I know, the cpu will set the PC to irq/fiq vector when the
> these exceptions are triggered. And these pointers are usually at the
> beginning position of bootloader, if bootloader wants to pass these
> functions to kernel, there may be some instructions like "b x
On Tue, May 20, 2008 at 11:23 AM, loody <[EMAIL PROTECTED]> wrote:
> hi:
> thanks for your kind help.
> As far as I know, the cpu will set the PC to irq/fiq vector when the
> these exceptions are triggered. And these pointers are usually at the
> beginning position of bootloader, if bootloader want
hi:
thanks for your kind help.
As far as I know, the cpu will set the PC to irq/fiq vector when the
these exceptions are triggered. And these pointers are usually at the
beginning position of bootloader, if bootloader wants to pass these
functions to kernel, there may be some instructions like "b x
On Tue, May 20, 2008 at 7:41 AM, loody <[EMAIL PROTECTED]> wrote:
> Dear all:
> I have trace interrupt/Fiq vector in uboot based on smdk2410.
> after we save user registers, we jump to following functions I
> excerpted at the end of mail.
> But these 2 functions seems not really handle the irq/fiq,
Dear all:
I have trace interrupt/Fiq vector in uboot based on smdk2410.
after we save user registers, we jump to following functions I
excerpted at the end of mail.
But these 2 functions seems not really handle the irq/fiq, would
someone please tell me where the real
interrupt handler is?
Is the i
