[PATCH 09/11] ARM: shmobile: r8a7740 dtsi: Add memory-controller node

Simon Horman horms+renesas at verge.net.au
Fri Jan 16 16:58:42 PST 2015


From: Geert Uytterhoeven <geert+renesas at glider.be>

Add a device node for the DDR3 Bus State Controller (DBSC3).
The DBSC3 is located in the A4S PM domain, which must not be powered
down, else the system will crash.

This has no visible effect for now, as A4S was never turned off anyway
because its child PM domain A3SM contains the CPU core.

Signed-off-by: Geert Uytterhoeven <geert+renesas at glider.be>
Signed-off-by: Simon Horman <horms+renesas at verge.net.au>
---
 arch/arm/boot/dts/r8a7740.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm/boot/dts/r8a7740.dtsi b/arch/arm/boot/dts/r8a7740.dtsi
index 52f2cf4..8a09260 100644
--- a/arch/arm/boot/dts/r8a7740.dtsi
+++ b/arch/arm/boot/dts/r8a7740.dtsi
@@ -37,6 +37,12 @@
 		      <0xc2000000 0x1000>;
 	};
 
+	dbsc3: memory-controller at fe400000 {
+		compatible = "renesas,dbsc3-r8a7740";
+		reg = <0xfe400000 0x400>;
+		power-domains = <&pd_a4s>;
+	};
+
 	pmu {
 		compatible = "arm,cortex-a9-pmu";
 		interrupts = <0 83 IRQ_TYPE_LEVEL_HIGH>;
-- 
2.1.4




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