[PATCH 18/31] ARM: dts: rockchip: Enable SMP bringup for RK312x

Alex Bee knaerzche at gmail.com
Tue Aug 29 10:16:34 PDT 2023


For bringup 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 at gmail.com>
---
 arch/arm/boot/dts/rockchip/rk312x.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm/boot/dts/rockchip/rk312x.dtsi b/arch/arm/boot/dts/rockchip/rk312x.dtsi
index b195ac525c37..08b953b005ff 100644
--- a/arch/arm/boot/dts/rockchip/rk312x.dtsi
+++ b/arch/arm/boot/dts/rockchip/rk312x.dtsi
@@ -27,6 +27,7 @@ arm-pmu {
 	cpus {
 		#address-cells = <1>;
 		#size-cells = <0>;
+		enable-method = "rockchip,rk3036-smp";
 
 		cpu0: cpu at f00 {
 			device_type = "cpu";
@@ -87,6 +88,11 @@ imem: sram at 10080000 {
 		#address-cells = <1>;
 		#size-cells = <1>;
 		ranges = <0 0x10080000 0x2000>;
+
+		smp-sram at 0 {
+			compatible = "rockchip,rk3066-smp-sram";
+			reg = <0x00 0x10>;
+		};
 	};
 
 	pmu: syscon at 100a0000 {
-- 
2.42.0




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