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

Alex Bee
2023-08-29T17:19:21Z

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@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@f00 {
device_type = "cpu";
@@ -87,6 +88,11 @@ 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