powerpc/83xx: consolidate init_IRQ functions
On mpc83xx platform nearly all _init_IRQ functions look alike. They either
just setup ipic, or setup ipic and QE PIC. Separate this to special functions
to be either referenced from ppc_md, or called from board file.
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/arch/powerpc/platforms/83xx/misc.c b/arch/powerpc/platforms/83xx/misc.c
index f01806c..4ac60cc 100644
--- a/arch/powerpc/platforms/83xx/misc.c
+++ b/arch/powerpc/platforms/83xx/misc.c
@@ -11,9 +11,12 @@
#include <linux/stddef.h>
#include <linux/kernel.h>
+#include <linux/of_platform.h>
#include <asm/io.h>
#include <asm/hw_irq.h>
+#include <asm/ipic.h>
+#include <asm/qe_ic.h>
#include <sysdev/fsl_soc.h>
#include "mpc83xx.h"
@@ -65,3 +68,46 @@
return 0;
}
+
+void __init mpc83xx_ipic_init_IRQ(void)
+{
+ struct device_node *np;
+
+ /* looking for fsl,pq2pro-pic which is asl compatible with fsl,ipic */
+ np = of_find_compatible_node(NULL, NULL, "fsl,ipic");
+ if (!np)
+ np = of_find_node_by_type(NULL, "ipic");
+ if (!np)
+ return;
+
+ ipic_init(np, 0);
+
+ of_node_put(np);
+
+ /* Initialize the default interrupt mapping priorities,
+ * in case the boot rom changed something on us.
+ */
+ ipic_set_default_priority();
+}
+
+#ifdef CONFIG_QUICC_ENGINE
+void __init mpc83xx_qe_init_IRQ(void)
+{
+ struct device_node *np;
+
+ np = of_find_compatible_node(NULL, NULL, "fsl,qe-ic");
+ if (!np) {
+ np = of_find_node_by_type(NULL, "qeic");
+ if (!np)
+ return;
+ }
+ qe_ic_init(np, 0, qe_ic_cascade_low_ipic, qe_ic_cascade_high_ipic);
+ of_node_put(np);
+}
+
+void __init mpc83xx_ipic_and_qe_init_IRQ(void)
+{
+ mpc83xx_ipic_init_IRQ();
+ mpc83xx_qe_init_IRQ();
+}
+#endif /* CONFIG_QUICC_ENGINE */