linux-kernel - [PATCH 3/4] ARM: dts: sun9i: Add CPUCFG device node for A80 dtsi

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Message-Id: <20170725050919.16036-4-wens@csie.org>
Date:   Tue, 25 Jul 2017 13:09:18 +0800
From:   Chen-Yu Tsai <wens@...e.org>
To:     Maxime Ripard <maxime.ripard@...e-electrons.com>,
        Russell King <linux@...linux.org.uk>
Cc:     linux-sunxi@...glegroups.com, Chen-Yu Tsai <wens@...e.org>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org,
        Nicolas Pitre <nicolas.pitre@...aro.org>,
        Dave Martin <Dave.Martin@....com>
Subject: [PATCH 3/4] ARM: dts: sun9i: Add CPUCFG device node for A80 dtsi

CPUCFG is a collection of registers that are mapped to the SoC's signals
from each individual processor core and associated peripherals, such as
resets for processors, L1/L2 cache and other things.

These registers are used for SMP bringup and CPU hotplugging.

Signed-off-by: Chen-Yu Tsai <wens@...e.org>
---
 arch/arm/boot/dts/sun9i-a80.dtsi | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm/boot/dts/sun9i-a80.dtsi b/arch/arm/boot/dts/sun9i-a80.dtsi
index fc179b8ab038..cc5db467f616 100644
--- a/arch/arm/boot/dts/sun9i-a80.dtsi
+++ b/arch/arm/boot/dts/sun9i-a80.dtsi
@@ -368,6 +368,11 @@
 			#reset-cells = <1>;
 		};
 
+		cpucfg@...00000 {
+			compatible = "allwinner,sun9i-a80-cpucfg";
+			reg = <0x01700000 0x100>;
+		};
+
 		mmc0: mmc@...0f000 {
 			compatible = "allwinner,sun9i-a80-mmc";
 			reg = <0x01c0f000 0x1000>;
-- 
2.13.3