[MIPS] IP32: Enable PCI bridges
[linux-2.6.git] / arch / mips / jazz / irq.c
index eef0509..015cf4b 100644 (file)
@@ -28,14 +28,6 @@ static void enable_r4030_irq(unsigned int irq)
        spin_unlock_irqrestore(&r4030_lock, flags);
 }
 
-static unsigned int startup_r4030_irq(unsigned int irq)
-{
-       enable_r4030_irq(irq);
-       return 0; /* never anything pending */
-}
-
-#define shutdown_r4030_irq     disable_r4030_irq
-
 void disable_r4030_irq(unsigned int irq)
 {
        unsigned int mask = ~(1 << (irq - JAZZ_PARALLEL_IRQ));
@@ -47,34 +39,20 @@ void disable_r4030_irq(unsigned int irq)
        spin_unlock_irqrestore(&r4030_lock, flags);
 }
 
-#define mask_and_ack_r4030_irq disable_r4030_irq
-
-static void end_r4030_irq(unsigned int irq)
-{
-       if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
-               enable_r4030_irq(irq);
-}
-
 static struct irq_chip r4030_irq_type = {
-       .typename = "R4030",
-       .startup = startup_r4030_irq,
-       .shutdown = shutdown_r4030_irq,
-       .enable = enable_r4030_irq,
-       .disable = disable_r4030_irq,
-       .ack = mask_and_ack_r4030_irq,
-       .end = end_r4030_irq,
+       .name = "R4030",
+       .ack = disable_r4030_irq,
+       .mask = disable_r4030_irq,
+       .mask_ack = disable_r4030_irq,
+       .unmask = enable_r4030_irq,
 };
 
 void __init init_r4030_ints(void)
 {
        int i;
 
-       for (i = JAZZ_PARALLEL_IRQ; i <= JAZZ_TIMER_IRQ; i++) {
-               irq_desc[i].status     = IRQ_DISABLED;
-               irq_desc[i].action     = 0;
-               irq_desc[i].depth      = 1;
-               irq_desc[i].chip    = &r4030_irq_type;
-       }
+       for (i = JAZZ_PARALLEL_IRQ; i <= JAZZ_TIMER_IRQ; i++)
+               set_irq_chip_and_handler(i, &r4030_irq_type, handle_level_irq);
 
        r4030_write_reg16(JAZZ_IO_IRQ_ENABLE, 0);
        r4030_read_reg16(JAZZ_IO_IRQ_SOURCE);           /* clear pending IRQs */
@@ -94,26 +72,26 @@ void __init arch_init_irq(void)
        change_c0_status(ST0_IM, IE_IRQ4 | IE_IRQ3 | IE_IRQ2 | IE_IRQ1);
 }
 
-static void loc_call(unsigned int irq, struct pt_regs *regs, unsigned int mask)
+static void loc_call(unsigned int irq, unsigned int mask)
 {
        r4030_write_reg16(JAZZ_IO_IRQ_ENABLE,
                          r4030_read_reg16(JAZZ_IO_IRQ_ENABLE) & mask);
-       do_IRQ(irq, regs);
+       do_IRQ(irq);
        r4030_write_reg16(JAZZ_IO_IRQ_ENABLE,
                          r4030_read_reg16(JAZZ_IO_IRQ_ENABLE) | mask);
 }
 
-static void ll_local_dev(struct pt_regs *regs)
+static void ll_local_dev(void)
 {
        switch (r4030_read_reg32(JAZZ_IO_IRQ_SOURCE)) {
        case 0:
                panic("Unimplemented loc_no_irq handler");
                break;
        case 4:
-               loc_call(JAZZ_PARALLEL_IRQ, regs, JAZZ_IE_PARALLEL);
+               loc_call(JAZZ_PARALLEL_IRQ, JAZZ_IE_PARALLEL);
                break;
        case 8:
-               loc_call(JAZZ_PARALLEL_IRQ, regs, JAZZ_IE_FLOPPY);
+               loc_call(JAZZ_PARALLEL_IRQ, JAZZ_IE_FLOPPY);
                break;
        case 12:
                panic("Unimplemented loc_sound handler");
@@ -122,41 +100,41 @@ static void ll_local_dev(struct pt_regs *regs)
                panic("Unimplemented loc_video handler");
                break;
        case 20:
-               loc_call(JAZZ_ETHERNET_IRQ, regs, JAZZ_IE_ETHERNET);
+               loc_call(JAZZ_ETHERNET_IRQ, JAZZ_IE_ETHERNET);
                break;
        case 24:
-               loc_call(JAZZ_SCSI_IRQ, regs, JAZZ_IE_SCSI);
+               loc_call(JAZZ_SCSI_IRQ, JAZZ_IE_SCSI);
                break;
        case 28:
-               loc_call(JAZZ_KEYBOARD_IRQ, regs, JAZZ_IE_KEYBOARD);
+               loc_call(JAZZ_KEYBOARD_IRQ, JAZZ_IE_KEYBOARD);
                break;
        case 32:
-               loc_call(JAZZ_MOUSE_IRQ, regs, JAZZ_IE_MOUSE);
+               loc_call(JAZZ_MOUSE_IRQ, JAZZ_IE_MOUSE);
                break;
        case 36:
-               loc_call(JAZZ_SERIAL1_IRQ, regs, JAZZ_IE_SERIAL1);
+               loc_call(JAZZ_SERIAL1_IRQ, JAZZ_IE_SERIAL1);
                break;
        case 40:
-               loc_call(JAZZ_SERIAL2_IRQ, regs, JAZZ_IE_SERIAL2);
+               loc_call(JAZZ_SERIAL2_IRQ, JAZZ_IE_SERIAL2);
                break;
        }
 }
 
-asmlinkage void plat_irq_dispatch(struct pt_regs *regs)
+asmlinkage void plat_irq_dispatch(void)
 {
-       unsigned int pending = read_c0_cause() & read_c0_status() & ST0_IM;
+       unsigned int pending = read_c0_cause() & read_c0_status();
 
        if (pending & IE_IRQ5)
                write_c0_compare(0);
        else if (pending & IE_IRQ4) {
                r4030_read_reg32(JAZZ_TIMER_REGISTER);
-               do_IRQ(JAZZ_TIMER_IRQ, regs);
+               do_IRQ(JAZZ_TIMER_IRQ);
        } else if (pending & IE_IRQ3)
                panic("Unimplemented ISA NMI handler");
        else if (pending & IE_IRQ2)
-               do_IRQ(r4030_read_reg32(JAZZ_EISA_IRQ_ACK), regs);
+               do_IRQ(r4030_read_reg32(JAZZ_EISA_IRQ_ACK));
        else if (pending & IE_IRQ1) {
-               ll_local_dev(regs);
+               ll_local_dev();
        } else if (unlikely(pending & IE_IRQ0))
                panic("Unimplemented local_dma handler");
        else if (pending & IE_SW1) {