Thread (1 message) 1 message, 1 author, 2015-11-20
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[PATCH 2/6] ARM: shmobile: r8a7740 dtsi: Use "arm,pl390" for GIC

From: geert+renesas@glider.be (Geert Uytterhoeven)
Date: 2015-11-20 12:36:53
Also in: linux-devicetree, linux-sh
Subsystem: the rest · Maintainer: Linus Torvalds

Possibly related (same subject, not in this thread)

Replace the "arm,cortex-a9-gic" compatible value for the GIC by
"arm,pl390", as the documentation states it is a PL390.
This has been confirmed by reading the GICD_IIDR register, which reports
0x0000043b (PL390 = 0x00, ARM = 0x43b).

This has no effect on runtime behavior, as currently the GIC driver
treats both compatible values the same.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
You can read the GICD_IIDR register from Hermit using

    frob
    peek 0xc2800008
---
 arch/arm/boot/dts/r8a7740.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/r8a7740.dtsi b/arch/arm/boot/dts/r8a7740.dtsi
index 4d58cdc3a026b2a4..08846c72cf1a64a3 100644
--- a/arch/arm/boot/dts/r8a7740.dtsi
+++ b/arch/arm/boot/dts/r8a7740.dtsi
@@ -39,7 +39,7 @@
 	};
 
 	gic: interrupt-controller at c2800000 {
-		compatible = "arm,cortex-a9-gic";
+		compatible = "arm,pl390";
 		#interrupt-cells = <3>;
 		interrupt-controller;
 		reg = <0xc2800000 0x1000>,
-- 
1.9.1
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