powerpc: Merge i8259.c into arch/powerpc/sysdev

This changes the parameters for i8259_init so that it takes two
parameters: a physical address for generating an interrupt
acknowledge cycle, and an interrupt number offset.  i8259_init
now sets the irq_desc[] for its interrupts; all the callers
were doing this, and that code is gone now.  This also defines
a CONFIG_PPC_I8259 symbol to select i8259.o for inclusion, and
makes the platforms that need it select that symbol.

Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 1 insertions, 5 deletions

diff --git a/arch/ppc/platforms/mvme5100.c b/arch/ppc/platforms/mvme5100.c
index ce2ce88c8033..108eb182dddc 100644
--- a/arch/ppc/platforms/mvme5100.c
+++ b/arch/ppc/platforms/mvme5100.c
@@ -223,11 +223,7 @@ mvme5100_init_IRQ(void)
         openpic_hookup_cascade(NUM_8259_INTERRUPTS, "82c59 cascade",
                         &i8259_irq);
 
-        /* Map i8259 interrupts. */
-        for (i = 0; i < NUM_8259_INTERRUPTS; i++)
-                irq_desc[i].handler = &i8259_pic;
-
-        i8259_init(0);
+        i8259_init(0, 0);
 #else
         openpic_init(0);
 #endif