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Diffstat (limited to 'arch/mips/au1000/pb1200/irqmap.c')
-rw-r--r--arch/mips/au1000/pb1200/irqmap.c66
1 files changed, 30 insertions, 36 deletions
diff --git a/arch/mips/au1000/pb1200/irqmap.c b/arch/mips/au1000/pb1200/irqmap.c
index e61eb8e0b76..2a505ad8715 100644
--- a/arch/mips/au1000/pb1200/irqmap.c
+++ b/arch/mips/au1000/pb1200/irqmap.c
@@ -39,25 +39,25 @@
#endif
struct au1xxx_irqmap __initdata au1xxx_irq_map[] = {
- { AU1000_GPIO_7, INTC_INT_LOW_LEVEL, 0 }, // This is exteranl interrupt cascade
+ /* This is external interrupt cascade */
+ { AU1000_GPIO_7, INTC_INT_LOW_LEVEL, 0 },
};
int __initdata au1xxx_nr_irqs = ARRAY_SIZE(au1xxx_irq_map);
/*
- * Support for External interrupts on the PbAu1200 Development platform.
+ * Support for External interrupts on the Pb1200 Development platform.
*/
-static volatile int pb1200_cascade_en=0;
+static volatile int pb1200_cascade_en;
-irqreturn_t pb1200_cascade_handler( int irq, void *dev_id)
+irqreturn_t pb1200_cascade_handler(int irq, void *dev_id)
{
unsigned short bisr = bcsr->int_status;
int extirq_nr = 0;
- /* Clear all the edge interrupts. This has no effect on level */
+ /* Clear all the edge interrupts. This has no effect on level. */
bcsr->int_status = bisr;
- for( ; bisr; bisr &= (bisr-1) )
- {
+ for ( ; bisr; bisr &= bisr - 1) {
extirq_nr = PB1200_INT_BEGIN + __ffs(bisr);
/* Ack and dispatch IRQ */
do_IRQ(extirq_nr);
@@ -68,26 +68,20 @@ irqreturn_t pb1200_cascade_handler( int irq, void *dev_id)
inline void pb1200_enable_irq(unsigned int irq_nr)
{
- bcsr->intset_mask = 1<<(irq_nr - PB1200_INT_BEGIN);
- bcsr->intset = 1<<(irq_nr - PB1200_INT_BEGIN);
+ bcsr->intset_mask = 1 << (irq_nr - PB1200_INT_BEGIN);
+ bcsr->intset = 1 << (irq_nr - PB1200_INT_BEGIN);
}
inline void pb1200_disable_irq(unsigned int irq_nr)
{
- bcsr->intclr_mask = 1<<(irq_nr - PB1200_INT_BEGIN);
- bcsr->intclr = 1<<(irq_nr - PB1200_INT_BEGIN);
+ bcsr->intclr_mask = 1 << (irq_nr - PB1200_INT_BEGIN);
+ bcsr->intclr = 1 << (irq_nr - PB1200_INT_BEGIN);
}
static unsigned int pb1200_setup_cascade(void)
{
- int err;
-
- err = request_irq(AU1000_GPIO_7, &pb1200_cascade_handler,
- 0, "Pb1200 Cascade", &pb1200_cascade_handler);
- if (err)
- return err;
-
- return 0;
+ return request_irq(AU1000_GPIO_7, &pb1200_cascade_handler,
+ 0, "Pb1200 Cascade", &pb1200_cascade_handler);
}
static unsigned int pb1200_startup_irq(unsigned int irq)
@@ -132,23 +126,23 @@ void _board_init_irq(void)
unsigned int irq;
#ifdef CONFIG_MIPS_PB1200
- /* We have a problem with CPLD rev3. Enable a workaround */
+ /* We have a problem with CPLD rev 3. */
if (((bcsr->whoami & BCSR_WHOAMI_CPLD) >> 4) <= 3) {
- printk("\nWARNING!!!\n");
- printk("\nWARNING!!!\n");
- printk("\nWARNING!!!\n");
- printk("\nWARNING!!!\n");
- printk("\nWARNING!!!\n");
- printk("\nWARNING!!!\n");
- printk("Pb1200 must be at CPLD rev4. Please have Pb1200\n");
- printk("updated to latest revision. This software will not\n");
- printk("work on anything less than CPLD rev4\n");
- printk("\nWARNING!!!\n");
- printk("\nWARNING!!!\n");
- printk("\nWARNING!!!\n");
- printk("\nWARNING!!!\n");
- printk("\nWARNING!!!\n");
- printk("\nWARNING!!!\n");
+ printk(KERN_ERR "WARNING!!!\n");
+ printk(KERN_ERR "WARNING!!!\n");
+ printk(KERN_ERR "WARNING!!!\n");
+ printk(KERN_ERR "WARNING!!!\n");
+ printk(KERN_ERR "WARNING!!!\n");
+ printk(KERN_ERR "WARNING!!!\n");
+ printk(KERN_ERR "Pb1200 must be at CPLD rev 4. Please have Pb1200\n");
+ printk(KERN_ERR "updated to latest revision. This software will\n");
+ printk(KERN_ERR "not work on anything less than CPLD rev 4.\n");
+ printk(KERN_ERR "WARNING!!!\n");
+ printk(KERN_ERR "WARNING!!!\n");
+ printk(KERN_ERR "WARNING!!!\n");
+ printk(KERN_ERR "WARNING!!!\n");
+ printk(KERN_ERR "WARNING!!!\n");
+ printk(KERN_ERR "WARNING!!!\n");
panic("Game over. Your score is 0.");
}
#endif
@@ -161,6 +155,6 @@ void _board_init_irq(void)
/*
* GPIO_7 can not be hooked here, so it is hooked upon first
- * request of any source attached to the cascade
+ * request of any source attached to the cascade.
*/
}