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/radstone_ppc7d.c b/arch/ppc/platforms/radstone_ppc7d.c
index 5058568c13ec..6f97911c330d 100644
--- a/arch/ppc/platforms/radstone_ppc7d.c
+++ b/arch/ppc/platforms/radstone_ppc7d.c
@@ -514,13 +514,9 @@ static void __init ppc7d_init_irq(void)
         int irq;
 
         pr_debug("%s\n", __FUNCTION__);
-        i8259_init(0);
+        i8259_init(0, 0);
         mv64360_init_irq();
 
-        /* IRQ 0..15 are handled by the cascaded 8259's of the Ali1535 */
-        for (irq = 0; irq < 16; irq++) {
-                irq_desc[irq].handler = &i8259_pic;
-        }
         /* IRQs 5,6,9,10,11,14,15 are level sensitive */
         irq_desc[5].status |= IRQ_LEVEL;
         irq_desc[6].status |= IRQ_LEVEL;