Without this, none of the devicetree devices in tegra-harmony.dts can
map interrupts, and the system fails to boot.
Signed-off-by: Stephen Warren <swarren@xxxxxxxxxx>
---
v2: Add a Tegra-specific compatible value, search by that value, minor
formatting fixes.
arch/arm/boot/dts/tegra-harmony.dts | 3 +++
arch/arm/mach-tegra/board-dt.c | 14 ++++++++++++++
2 files changed, 17 insertions(+), 0 deletions(-)
diff --git a/arch/arm/boot/dts/tegra-harmony.dts b/arch/arm/boot/dts/tegra-harmony.dts
index 82fa0c2..a22c1bb 100644
--- a/arch/arm/boot/dts/tegra-harmony.dts
+++ b/arch/arm/boot/dts/tegra-harmony.dts
@@ -25,8 +25,11 @@
ranges;
intc: intc {
+ compatible = "nvidia,tegra250-gic", "arm,gic";
interrupt-controller;
#interrupt-cells = <1>;
+ reg = < 0x50041000 0x1000
+ 0x50040100 0x100 >;
};
};
diff --git a/arch/arm/mach-tegra/board-dt.c b/arch/arm/mach-tegra/board-dt.c
index 0efedb8..fb0d75d 100644
--- a/arch/arm/mach-tegra/board-dt.c
+++ b/arch/arm/mach-tegra/board-dt.c
@@ -22,7 +22,9 @@
#include <linux/clk.h>
#include <linux/dma-mapping.h>
#include <linux/of.h>
+#include <linux/of_address.h>
#include <linux/of_fdt.h>
+#include <linux/of_irq.h>
#include <linux/of_platform.h>
#include <linux/pda_power.h>
#include <linux/io.h>
@@ -137,8 +139,20 @@ static struct of_device_id tegra_dt_match_table[] __initdata = {
{}
};
+struct of_device_id gic_match[] __initdata = {
+ { .compatible = "nvidia,tegra250-gic", },
+ {}
+};
+
static void __init tegra_dt_init(void)
{
+ struct device_node *node;
+
+ node = of_find_matching_node_by_address(NULL, gic_match,
+ TEGRA_ARM_INT_DIST_BASE);
+ if (node)
+ of_irq_domain_add_simple(node, INT_GIC_BASE, INT_MAIN_NR);
+
/*
* Before registering devices; tell Linux about which device nodes
* are intended to be registered so that it doesn't create devices
--
1.7.1
--
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