Hi,
On 12/10/24 8:02 PM, Ivaylo Ivanov wrote:
For Exynos8895, a reboot is handled by setting the bit(SWRESET_SYSTEM[1])
of SWRESET register(PMU + 0x400) and power-off is handled by setting
bit(DATA[8]) of PS_HOLD_CONTROL register (PMU + 0x330c).
Tested using "reboot" and "poweroff -p" commands.
Signed-off-by: Ivaylo Ivanov <ivo.ivanov.ivanov1@xxxxxxxxx>
---
arch/arm64/boot/dts/exynos/exynos8895.dtsi | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/arch/arm64/boot/dts/exynos/exynos8895.dtsi b/arch/arm64/boot/dts/exynos/exynos8895.dtsi
index 90b318b2f..9eb89dd19 100644
--- a/arch/arm64/boot/dts/exynos/exynos8895.dtsi
+++ b/arch/arm64/boot/dts/exynos/exynos8895.dtsi
@@ -388,6 +388,21 @@ pmu_system_controller: system-controller@16480000 {
compatible = "samsung,exynos8895-pmu",
"samsung,exynos7-pmu", "syscon";
reg = <0x16480000 0x10000>;
+
+ poweroff: syscon-poweroff {
+ compatible = "syscon-poweroff";
+ regmap = <&pmu_system_controller>;
+ offset = <0x330c>; /* PS_HOLD_CONTROL */
+ mask = <0x100>; /* reset value */
+ };
+
+ reboot: syscon-reboot {
+ compatible = "syscon-reboot";
+ regmap = <&pmu_system_controller>;
+ offset = <0x400>; /* SWRESET */
+ mask = <0x1>; /* SWRESET_SYSTEM */
+ value = <0x1>; /* reset value */
+ };
};
Aren't those already included with
arm/samsung/exynos-syscon-restart.dtsi? I can see that the values for
poweroff are different here though, does it not work with the value from
exynos-syscon-restart?
pinctrl_alive: pinctrl@164b0000 {
- Markuss
