Hi Paul,

On 9/26/24 8:31 PM, Paul Kocialkowski wrote:
From: Paul Kocialkowski <cont...@paulk.fr>

The reset mechanism used by Linux to reset the SoC is known to only
partially reset the logic. A mechanism is implemented in
rk3399_force_power_on_reset to use a GPIO connected to the PMIC's
over-temperature (OTP) reset pin, which fully resets all logic.

Hook the associated GPIO where the function expects it to enable this
reset mechanism and avoid any possible side-effect of partially-reset
units.

Signed-off-by: Paul Kocialkowski <cont...@paulk.fr>
---
  arch/arm/dts/rk3399-rockpro64-u-boot.dtsi | 8 ++++++++
  1 file changed, 8 insertions(+)

diff --git a/arch/arm/dts/rk3399-rockpro64-u-boot.dtsi 
b/arch/arm/dts/rk3399-rockpro64-u-boot.dtsi
index 43b67991fe5a..cd84269dab48 100644
--- a/arch/arm/dts/rk3399-rockpro64-u-boot.dtsi
+++ b/arch/arm/dts/rk3399-rockpro64-u-boot.dtsi
@@ -7,6 +7,10 @@
  #include "rk3399-sdram-lpddr4-100.dtsi"
/ {
+       config {
+               sysreset-gpio = <&gpio1 RK_PA6 GPIO_ACTIVE_HIGH>;
+       };
+

We've been using this on RK3399 Puma for a while already, and a similar routing can be observed on both boards, therefore:

Reviewed-by: Quentin Schulz <quentin.sch...@cherry.de>

Thanks!
Quentin

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