powerpc: Rework interrupt_init_cpu()

The function interrupt_init_cpu() is given an int return type but does
not return anything but 0.  Rework this to be a void function.

Signed-off-by: Tom Rini <trini@konsulko.com>
Acked-by: Mario Six <mario.six@gdsys.cc>

arch/powerpc/cpu/mpc83xx/interrupts.c

@@ -20,7 +20,7 @@ struct irq_action {
 	ulong count;
 };
 
-int interrupt_init_cpu (unsigned *decrementer_count)
+void interrupt_init_cpu (unsigned *decrementer_count)
 {
 	volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
 
@@ -29,8 +29,6 @@ int interrupt_init_cpu (unsigned *decrementer_count)
 	/* Enable e300 time base */
 
 	immr->sysconf.spcr |= 0x00400000;
-
-	return 0;
 }
 
 

arch/powerpc/cpu/mpc85xx/interrupts.c

@@ -20,7 +20,7 @@
 #include <post.h>
 #endif
 
-int interrupt_init_cpu(unsigned *decrementer_count)
+void interrupt_init_cpu(unsigned *decrementer_count)
 {
 	ccsr_pic_t __iomem *pic = (void *)CONFIG_SYS_MPC8xxx_PIC_ADDR;
 
@@ -77,8 +77,6 @@ int interrupt_init_cpu(unsigned *decrementer_count)
 #ifdef CONFIG_POST
 	post_word_store(post_word);
 #endif
-
-	return (0);
 }
 
 /* Install and free a interrupt handler. Not implemented yet. */

arch/powerpc/cpu/mpc86xx/interrupts.c

@@ -23,7 +23,7 @@
 #include <post.h>
 #endif
 
-int interrupt_init_cpu(unsigned *decrementer_count)
+void interrupt_init_cpu(unsigned *decrementer_count)
 {
 	volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
 	volatile ccsr_pic_t *pic = &immr->im_pic;
@@ -73,8 +73,6 @@ int interrupt_init_cpu(unsigned *decrementer_count)
 #ifdef CONFIG_POST
 	post_word_store(post_word);
 #endif
-
-	return 0;
 }
 
 /*

arch/powerpc/cpu/mpc8xx/interrupts.c

@@ -30,7 +30,7 @@ static void cpm_interrupt(void *regs);
 
 /************************************************************************/
 
-int interrupt_init_cpu(unsigned *decrementer_count)
+void interrupt_init_cpu(unsigned *decrementer_count)
 {
 	immap_t __iomem *immr = (immap_t __iomem *)CONFIG_SYS_IMMR;
 
@@ -41,8 +41,6 @@ int interrupt_init_cpu(unsigned *decrementer_count)
 
 	/* Configure CPM interrupts */
 	cpm_interrupt_init();
-
-	return 0;
 }
 
 /************************************************************************/

arch/powerpc/include/asm/ppc.h

@@ -122,7 +122,7 @@ static inline void set_msr(unsigned long msr)
 void print_reginfo(void);
 #endif
 
-int interrupt_init_cpu(unsigned *);
+void interrupt_init_cpu(unsigned *);
 void timer_interrupt_cpu(struct pt_regs *);
 unsigned long search_exception_table(unsigned long addr);
 

arch/powerpc/lib/interrupts.c

@@ -63,13 +63,8 @@ int disable_interrupts (void)
 
 int interrupt_init (void)
 {
-	int ret;
-
 	/* call cpu specific function from $(CPU)/interrupts.c */
-	ret = interrupt_init_cpu (&decrementer_count);
-
-	if (ret)
-		return ret;
+	interrupt_init_cpu (&decrementer_count);
 
 	set_dec (decrementer_count);