HI,
> From: Roman Mashak [mailto:[EMAIL PROTECTED]
> Subject: Re: [U-Boot] PrimeCell Peripherals
>
> To add a bit to my previous message.
>
> As far as I understood from U-Boot's README, a standalone
> mode can and may want to use interrupts -- so it'd reasonable
> to have interrupts controllers support, isn't it? Correct me
> if I'm wrong, just trying to understand the architecture of
> U-Boot more deeply.
U-boots readme is general for all platforms.
Yes, U-boot ARM supports interrupt mode, but generally not used.
Also standalone can use interrupt mode if the u-boot it is running on is
configured to support irq
i.e., CONFIG_USE_IRQ is defined.
Then the user has to also define a do_irq command to support the same
Kindly look at below file for do_irq function definitions & its usage.
uboot\cpu\arm720t\interrupts.c
uboot\cpu\arm920t\interrupts.c
i havent seen this function definitions for arm926ej-s except
#ifndef CONFIG_USE_IRQ
void do_irq (struct pt_regs *pt_regs)
{
...
Regards
Gururaja
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