menu "Freescale i.MX support"
depends on ARCH_MXC
-config MXC_IRQ_PRIOR
- bool "Use IRQ priority"
- help
- Select this if you want to use prioritized IRQ handling.
- This feature prevents higher priority ISR to be interrupted
- by lower priority IRQ.
- This may be useful in embedded applications, where are strong
- requirements for timing.
- Say N here, unless you have a specialized requirement.
-
config MXC_TZIC
bool
static void __iomem *avic_base;
static struct irq_domain *domain;
-#ifdef CONFIG_MXC_IRQ_PRIOR
-static int avic_irq_set_priority(unsigned char irq, unsigned char prio)
-{
- struct irq_data *d = irq_get_irq_data(irq);
- unsigned int temp;
- unsigned int mask = 0x0F << irq % 8 * 4;
-
- irq = d->hwirq;
-
- if (irq >= AVIC_NUM_IRQS)
- return -EINVAL;
-
- temp = __raw_readl(avic_base + AVIC_NIPRIORITY(irq / 8));
- temp &= ~mask;
- temp |= prio & mask;
-
- __raw_writel(temp, avic_base + AVIC_NIPRIORITY(irq / 8));
-
- return 0;
-}
-#endif
-
#ifdef CONFIG_FIQ
static int avic_set_irq_fiq(unsigned int irq, unsigned int type)
{
static struct mxc_extra_irq avic_extra_irq = {
-#ifdef CONFIG_MXC_IRQ_PRIOR
- .set_priority = avic_irq_set_priority,
-#endif
#ifdef CONFIG_FIQ
.set_irq_fiq = avic_set_irq_fiq,
#endif