Signed-off-by: Andrew Lunn <[email protected]>
---
.../devicetree/bindings/arm/mrvl/intc.txt | 20 ++++++++++++++++++
arch/arm/boot/dts/kirkwood.dtsi | 9 ++++++++
arch/arm/mach-kirkwood/board-dt.c | 22 +++++++++++++++++++-
3 files changed, 50 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/arm/mrvl/intc.txt
b/Documentation/devicetree/bindings/arm/mrvl/intc.txt
index 80b9a94..612536e 100644
--- a/Documentation/devicetree/bindings/arm/mrvl/intc.txt
+++ b/Documentation/devicetree/bindings/arm/mrvl/intc.txt
@@ -38,3 +38,23 @@ Example:
reg-names = "mux status", "mux mask";
mrvl,intc-nr-irqs = <2>;
};
+
+* Marvell Orion Interrupt controller
+
+Required properties
+- compatible : Should be "marvell,orion-intc"
+- #interrupt-cells: Specifies the number of cells needed to encode an
+ interrupt source. Supported value is <1>
+- interrupt-controller : So that its clear its an interrupt controller.
+Optional properties
+- reg : Not used yet, but will contain the interrupt mask address
+
+Example:
+
+ intc: interrupt-controller {
+ compatible = "marvell,orion-intc", "marvell,intc";
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ reg = <0xfed20204 0x04>,
+ <0xfed20214 0x04>;
+ };
diff --git a/arch/arm/boot/dts/kirkwood.dtsi b/arch/arm/boot/dts/kirkwood.dtsi
index 926528b..8eab7c4 100644
--- a/arch/arm/boot/dts/kirkwood.dtsi
+++ b/arch/arm/boot/dts/kirkwood.dtsi
@@ -2,6 +2,15 @@
/ {
compatible = "mrvl,kirkwood";
+ interrupt-parent = <&intc>;
+
+ intc: interrupt-controller {
+ compatible = "marvell,orion-intc", "marvell,intc";
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ reg = <0xfed20204 0x04>,
+ <0xfed20214 0x04>;
+ };
ocp@f1000000 {
compatible = "simple-bus";
diff --git a/arch/arm/mach-kirkwood/board-dt.c
b/arch/arm/mach-kirkwood/board-dt.c
index edc3f8a..fa51586 100644
--- a/arch/arm/mach-kirkwood/board-dt.c
+++ b/arch/arm/mach-kirkwood/board-dt.c
@@ -14,6 +14,7 @@
#include <linux/init.h>
#include <linux/of.h>
#include <linux/of_platform.h>
+#include <linux/of_irq.h>
#include <linux/kexec.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
@@ -80,11 +81,30 @@ static const char *kirkwood_dt_board_compat[] = {
NULL
};
+static int __init kirkwood_add_irq_domain(struct device_node *np,
+ struct device_node *interrupt_parent)
+{
+ kirkwood_init_irq();
+ irq_domain_add_legacy(np, 64, 0, 0, &irq_domain_simple_ops, NULL);
+ return 0;
+}
+
+static const struct of_device_id kirkwood_irq_match[] = {
+ { .compatible = "marvell,orion-intc",
+ .data = kirkwood_add_irq_domain, },
+ {},
+};
+
+static void __init kirkwood_dt_init_irq(void)
+{
+ of_irq_init(kirkwood_irq_match);
+}
+
DT_MACHINE_START(KIRKWOOD_DT, "Marvell Kirkwood (Flattened Device Tree)")
/* Maintainer: Jason Cooper <[email protected]> */
.map_io = kirkwood_map_io,
.init_early = kirkwood_init_early,
- .init_irq = kirkwood_init_irq,
+ .init_irq = kirkwood_dt_init_irq,
.timer = &kirkwood_timer,
.init_machine = kirkwood_dt_init,
.restart = kirkwood_restart,
--
1.7.10
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