m68k/sun3: Get interrupts working again
Thomas Bogendoerfer [Sun, 11 Nov 2012 12:28:33 +0000 (13:28 +0100)]
SUN3 Intregister is not for enabling individual interrupts, but to enable
special interrupts. So using it for interrupt enable/disable was wrong.
The clock interrupt needs some special treatment to keep ticking.

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>

arch/m68k/sun3/sun3ints.c

index 78b60f5..6bbca30 100644 (file)
@@ -66,6 +66,8 @@ static irqreturn_t sun3_int5(int irq, void *dev_id)
 #ifdef CONFIG_SUN3
        intersil_clear();
 #endif
+       sun3_disable_irq(5);
+       sun3_enable_irq(5);
 #ifdef CONFIG_SUN3
        intersil_clear();
 #endif
@@ -79,41 +81,18 @@ static irqreturn_t sun3_int5(int irq, void *dev_id)
 
 static irqreturn_t sun3_vec255(int irq, void *dev_id)
 {
-//     intersil_clear();
        return IRQ_HANDLED;
 }
 
-static void sun3_irq_enable(struct irq_data *data)
-{
-    sun3_enable_irq(data->irq);
-};
-
-static void sun3_irq_disable(struct irq_data *data)
-{
-    sun3_disable_irq(data->irq);
-};
-
-static struct irq_chip sun3_irq_chip = {
-       .name           = "sun3",
-       .irq_startup    = m68k_irq_startup,
-       .irq_shutdown   = m68k_irq_shutdown,
-       .irq_enable     = sun3_irq_enable,
-       .irq_disable    = sun3_irq_disable,
-       .irq_mask       = sun3_irq_disable,
-       .irq_unmask     = sun3_irq_enable,
-};
-
 void __init sun3_init_IRQ(void)
 {
        *sun3_intreg = 1;
 
-       m68k_setup_irq_controller(&sun3_irq_chip, handle_level_irq, IRQ_AUTO_1,
-                                 7);
        m68k_setup_user_interrupt(VEC_USER, 128);
 
-       if (request_irq(IRQ_AUTO_5, sun3_int5, 0, "int5", NULL))
+       if (request_irq(IRQ_AUTO_5, sun3_int5, 0, "clock", NULL))
                pr_err("Couldn't register %s interrupt\n", "int5");
-       if (request_irq(IRQ_AUTO_7, sun3_int7, 0, "int7", NULL))
+       if (request_irq(IRQ_AUTO_7, sun3_int7, 0, "nmi", NULL))
                pr_err("Couldn't register %s interrupt\n", "int7");
        if (request_irq(IRQ_USER+127, sun3_vec255, 0, "vec255", NULL))
                pr_err("Couldn't register %s interrupt\n", "vec255");