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From: Alex Bee <knaerzche@gmail.com>
To: Heiko Stuebner <heiko@sntech.de>,
	Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Conor Dooley <conor+dt@kernel.org>
Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org,
	Alex Bee <knaerzche@gmail.com>
Subject: [PATCH v2 3/4] ARM: dts: rockchip: Enable SMP bring-up for RK3128
Date: Tue, 29 Aug 2023 23:40:07 +0200	[thread overview]
Message-ID: <20230829214004.314932-8-knaerzche@gmail.com> (raw)
In-Reply-To: <20230829214004.314932-2-knaerzche@gmail.com>

For bring-up of the non-boot cpu cores the enable-method for RK3036 can be
re-used.
This adds a (small) chunk of SRAM for execution of the SMP trampoline code
and the respective enable-method property to the cpus.

Signed-off-by: Alex Bee <knaerzche@gmail.com>
---
 arch/arm/boot/dts/rockchip/rk3128.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm/boot/dts/rockchip/rk3128.dtsi b/arch/arm/boot/dts/rockchip/rk3128.dtsi
index 2778049003a1..877854dd765d 100644
--- a/arch/arm/boot/dts/rockchip/rk3128.dtsi
+++ b/arch/arm/boot/dts/rockchip/rk3128.dtsi
@@ -27,6 +27,7 @@ arm-pmu {
 	cpus {
 		#address-cells = <1>;
 		#size-cells = <0>;
+		enable-method = "rockchip,rk3036-smp";
 
 		cpu0: cpu@f00 {
 			device_type = "cpu";
@@ -86,6 +87,11 @@ imem: sram@10080000 {
 		#address-cells = <1>;
 		#size-cells = <1>;
 		ranges = <0 0x10080000 0x2000>;
+
+		smp-sram@0 {
+			compatible = "rockchip,rk3066-smp-sram";
+			reg = <0x00 0x10>;
+		};
 	};
 
 	pmu: syscon@100a0000 {
-- 
2.42.0


  parent reply	other threads:[~2023-08-29 21:43 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-08-29 21:40 [PATCH v2 0/4] Enable SMP bring-up and cpu frequency-scaling for RK3128 Alex Bee
2023-08-29 21:40 ` [PATCH v2 1/4] ARM: dts: rockchip: Add SRAM node " Alex Bee
2023-08-29 21:40 ` [PATCH v2 2/4] ARM: dts: rockchip: Add CPU resets " Alex Bee
2023-08-29 21:40 ` Alex Bee [this message]
2023-08-29 21:40 ` [PATCH v2 4/4] ARM: dts: rockchip: Switch to operating-points-v2 for RK3128's CPU Alex Bee
2023-10-04 21:32 ` [PATCH v2 0/4] Enable SMP bring-up and cpu frequency-scaling for RK3128 Heiko Stuebner

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