sh: Move cpu/$CPU to arch/sh/cpu/$CPU

[oweals/u-boot.git] / cpu / ixp / interrupts.c

diff --git a/cpu/ixp/interrupts.c b/cpu/ixp/interrupts.c
index 621f31b00f7c620915b060fd1753c64628c2e883..06a826af63e1b8f91cd8bc119240e475c45f1244 100644 (file)
--- a/cpu/ixp/interrupts.c
+++ b/cpu/ixp/interrupts.c
@@ -31,18 +31,8 @@
 
 #include <common.h>
 #include <asm/arch/ixp425.h>
-
-#ifdef CONFIG_USE_IRQ
 #include <asm/proc-armv/ptrace.h>
 
-/*
- * When interrupts are enabled, use timer 2 for time/delay generation...
- */
-
-#define FREQ           66666666
-#define CLOCK_TICK_RATE        (((FREQ / CONFIG_SYS_HZ & ~IXP425_OST_RELOAD_MASK) + 1) * CONFIG_SYS_HZ)
-#define LATCH          ((CLOCK_TICK_RATE + CONFIG_SYS_HZ/2) / CONFIG_SYS_HZ)   /* For divider */
-
 struct _irq_handler {
        void                *m_data;
        void (*m_func)( void *data);
@@ -50,8 +40,6 @@ struct _irq_handler {
 
 static struct _irq_handler IRQ_HANDLER[N_IRQS];
 
-static volatile ulong timestamp;
-
 static void default_isr(void *data)
 {
        printf("default_isr():  called for IRQ %d, Interrupt Status=%x PR=%x\n",
@@ -63,63 +51,32 @@ static int next_irq(void)
        return (((*IXP425_ICIH & 0x000000fc) >> 2) - 1);
 }
 
-static void timer_isr(void *data)
-{
-       unsigned int *pTime = (unsigned int *)data;
-
-       (*pTime)++;
-
-       /*
-        * Reset IRQ source
-        */
-       *IXP425_OSST = IXP425_OSST_TIMER_2_PEND;
-}
-
-ulong get_timer (ulong base)
+void do_irq (struct pt_regs *pt_regs)
 {
-       return timestamp - base;
-}
+       int irq = next_irq();
 
-void reset_timer (void)
-{
-       timestamp = 0;
+       IRQ_HANDLER[irq].m_func(IRQ_HANDLER[irq].m_data);
 }
 
-#endif /* #ifdef CONFIG_USE_IRQ */
-
-#ifdef CONFIG_USE_IRQ
-void do_irq (struct pt_regs *pt_regs)
+void irq_install_handler (int irq, interrupt_handler_t handle_irq, void *data)
 {
-       int irq = next_irq();
+       if (irq >= N_IRQS || !handle_irq)
+               return;
 
-       IRQ_HANDLER[irq].m_func(IRQ_HANDLER[irq].m_data);
+       IRQ_HANDLER[irq].m_data = data;
+       IRQ_HANDLER[irq].m_func = handle_irq;
 }
-#endif
 
-int interrupt_init (void)
+int arch_interrupt_init (void)
 {
-#ifdef CONFIG_USE_IRQ
        int i;
 
        /* install default interrupt handlers */
-       for (i = 0; i < N_IRQS; i++) {
-               IRQ_HANDLER[i].m_data = (void *)i;
-               IRQ_HANDLER[i].m_func = default_isr;
-       }
-
-       /* install interrupt handler for timer */
-       IRQ_HANDLER[IXP425_TIMER_2_IRQ].m_data = (void *)&timestamp;
-       IRQ_HANDLER[IXP425_TIMER_2_IRQ].m_func = timer_isr;
-
-       /* setup the Timer counter value */
-       *IXP425_OSRT2 = (LATCH & ~IXP425_OST_RELOAD_MASK) | IXP425_OST_ENABLE;
+       for (i = 0; i < N_IRQS; i++)
+               irq_install_handler(i, default_isr, (void *)i);
 
        /* configure interrupts for IRQ mode */
        *IXP425_ICLR = 0x00000000;
 
-       /* enable timer irq */
-       *IXP425_ICMR = (1 << IXP425_TIMER_2_IRQ);
-#endif
-
        return (0);
 }