linux: half-twins: reconfigure thermal trip points and disable shutdown

Signed-off-by: Josua Mayer <josua@solid-run.com>

patches/linux-LSDK-21.08/0027-firmware-psci-support-disabling-shutdown-through-dev.patch

+From 6139e13400bc199ed77a4a82e5cdbcad4a3c890c Mon Sep 17 00:00:00 2001
+From: Josua Mayer <josua@solid-run.com>
+Date: Wed, 26 Oct 2022 17:31:09 +0300
+Subject: [PATCH 27/29] firmware: psci: support disabling shutdown through
+ device-tree property
+
+Under certain conditions shutdown can be unpractical even in criticial
+situations such as heat. Add device-tree property "no-shutdown" to
+replace poweroff call with hard reset.
+
+Signed-off-by: Josua Mayer <josua@solid-run.com>
+---
+ drivers/firmware/psci/psci.c | 16 ++++++++++++++--
+ 1 file changed, 14 insertions(+), 2 deletions(-)
+
+diff --git a/drivers/firmware/psci/psci.c b/drivers/firmware/psci/psci.c
+index 00af99b6f97c..0bf116f31e90 100644
+--- a/drivers/firmware/psci/psci.c
++++ b/drivers/firmware/psci/psci.c
+@@ -79,6 +79,7 @@ static u32 psci_function_id[PSCI_FN_MAX];
+ 
+ static u32 psci_cpu_suspend_feature;
+ static bool psci_system_reset2_supported;
++static bool psci_disable_poweroff;
+ 
+ static inline bool psci_has_ext_power_state(void)
+ {
+@@ -276,7 +277,10 @@ static void psci_sys_reset(enum reboot_mode reboot_mode, const char *cmd)
+ 
+ static void psci_sys_poweroff(void)
+ {
+-	invoke_psci_fn(PSCI_0_2_FN_SYSTEM_OFF, 0, 0, 0);
++	if (psci_disable_poweroff)
++		psci_sys_reset(REBOOT_HARD, 0);
++	else
++		invoke_psci_fn(PSCI_0_2_FN_SYSTEM_OFF, 0, 0, 0);
+ }
+ 
+ static int __init psci_features(u32 psci_func_id)
+@@ -497,7 +501,15 @@ static int __init psci_0_2_init(struct device_node *np)
+ 	 * can be carried out according to the specific version reported
+ 	 * by firmware
+ 	 */
+-	return psci_probe();
++	err = psci_probe();
++	if (err)
++		return err;
++
++	if (of_property_read_bool(np, "no-poweroff")) {
++		psci_disable_poweroff = true;
++	}
++
++	return 0;
+ }
+ 
+ /*
+-- 
+2.38.0
+

patches/linux-LSDK-21.08/0028-arm64-dts-lx2160a-add-references-for-thermal-trip-po.patch

+From c94d4906d30aee9c643a1adf1500e437dfe4d1cf Mon Sep 17 00:00:00 2001
+From: Josua Mayer <josua@solid-run.com>
+Date: Wed, 26 Oct 2022 17:33:24 +0300
+Subject: [PATCH 28/29] arm64: dts: lx2160a: add references for thermal
+ trip-points and psci nodes
+
+Signed-off-by: Josua Mayer <josua@solid-run.com>
+---
+ .../arm64/boot/dts/freescale/fsl-lx2160a.dtsi | 26 +++++++++----------
+ 1 file changed, 13 insertions(+), 13 deletions(-)
+
+diff --git a/arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi b/arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi
+index b39d9cf4a95e..53e5881afd36 100644
+--- a/arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi
++++ b/arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi
+@@ -408,7 +408,7 @@ pmu {
+ 		interrupts = <GIC_PPI 7 IRQ_TYPE_LEVEL_LOW>;
+ 	};
+ 
+-	psci {
++	psci: psci {
+ 		compatible = "arm,psci-0.2";
+ 		method = "smc";
+ 	};
+@@ -491,13 +491,13 @@ ddr-cluster5 {
+ 			thermal-sensors = <&tmu 1>;
+ 
+ 			trips {
+-				ddr-cluster5-alert {
++				ddr_cluster5_alert: ddr-cluster5-alert {
+ 					temperature = <85000>;
+ 					hysteresis = <2000>;
+ 					type = "passive";
+ 				};
+ 
+-				ddr-cluster5-crit {
++				ddr_cluster5_crit: ddr-cluster5-crit {
+ 					temperature = <95000>;
+ 					hysteresis = <2000>;
+ 					type = "critical";
+@@ -511,13 +511,13 @@ wriop {
+ 			thermal-sensors = <&tmu 2>;
+ 
+ 			trips {
+-				wriop-alert {
++				wriop_alert: wriop-alert {
+ 					temperature = <85000>;
+ 					hysteresis = <2000>;
+ 					type = "passive";
+ 				};
+ 
+-				wriop-crit {
++				wriop_crit: wriop-crit {
+ 					temperature = <95000>;
+ 					hysteresis = <2000>;
+ 					type = "critical";
+@@ -531,13 +531,13 @@ dce-qbman-hsio2 {
+ 			thermal-sensors = <&tmu 3>;
+ 
+ 			trips {
+-				dce-qbman-alert {
++				dce_qbman_alert: dce-qbman-alert {
+ 					temperature = <85000>;
+ 					hysteresis = <2000>;
+ 					type = "passive";
+ 				};
+ 
+-				dce-qbman-crit {
++				dce_qbman_crit: dce-qbman-crit {
+ 					temperature = <95000>;
+ 					hysteresis = <2000>;
+ 					type = "critical";
+@@ -551,13 +551,13 @@ ccn-dpaa-tbu {
+ 			thermal-sensors = <&tmu 4>;
+ 
+ 			trips {
+-				ccn-dpaa-alert {
++				ccn_dpaa_alert: ccn-dpaa-alert {
+ 					temperature = <85000>;
+ 					hysteresis = <2000>;
+ 					type = "passive";
+ 				};
+ 
+-				ccn-dpaa-crit {
++				ccn_dpaa_crit: ccn-dpaa-crit {
+ 					temperature = <95000>;
+ 					hysteresis = <2000>;
+ 					type = "critical";
+@@ -571,13 +571,13 @@ cluster4-hsio3 {
+ 			thermal-sensors = <&tmu 5>;
+ 
+ 			trips {
+-				clust4-hsio3-alert {
++				clust4_hsio3_alert: clust4-hsio3-alert {
+ 					temperature = <85000>;
+ 					hysteresis = <2000>;
+ 					type = "passive";
+ 				};
+ 
+-				clust4-hsio3-crit {
++				clust4_hsio3_crit: clust4-hsio3-crit {
+ 					temperature = <95000>;
+ 					hysteresis = <2000>;
+ 					type = "critical";
+@@ -591,13 +591,13 @@ cluster2-3 {
+ 			thermal-sensors = <&tmu 6>;
+ 
+ 			trips {
+-				cluster2-3-alert {
++				cluster2_3_alert: cluster2-3-alert {
+ 					temperature = <85000>;
+ 					hysteresis = <2000>;
+ 					type = "passive";
+ 				};
+ 
+-				cluster2-3-crit {
++				cluster2_3_crit: cluster2-3-crit {
+ 					temperature = <95000>;
+ 					hysteresis = <2000>;
+ 					type = "critical";
+-- 
+2.38.0
+

patches/linux-LSDK-21.08/0029-arm64-dts-lx2160a-half-twins-reconfigure-thermal-tri.patch

+From 4c5297048346199029223a7d1f62408d47efb3b0 Mon Sep 17 00:00:00 2001
+From: Josua Mayer <josua@solid-run.com>
+Date: Wed, 26 Oct 2022 17:34:53 +0300
+Subject: [PATCH] arm64: dts: lx2160a-half-twins: reconfigure thermal trip
+ points
+
+Raise warning and critical limits to 100 and 105 degrees to ensure the
+system can run at full speed as long as possible.
+Also replace (thermal) shutdown by hard reset to ensure the system won't
+stop. RCW will wait for the system to cool down before starting again.
+
+Signed-off-by: Josua Mayer <josua@solid-run.com>
+---
+ .../dts/freescale/fsl-lx2160a-half-twins.dts  | 62 +++++++++++++++++++
+ 1 file changed, 62 insertions(+)
+
+diff --git a/arch/arm64/boot/dts/freescale/fsl-lx2160a-half-twins.dts b/arch/arm64/boot/dts/freescale/fsl-lx2160a-half-twins.dts
+index 5c3905f28b46..e3175b5f5234 100644
+--- a/arch/arm64/boot/dts/freescale/fsl-lx2160a-half-twins.dts
++++ b/arch/arm64/boot/dts/freescale/fsl-lx2160a-half-twins.dts
+@@ -24,6 +24,68 @@ chosen {
+ 	};
+ };
+ 
++/* disable power-off */
++&psci {
++	no-poweroff;
++};
++
++/* raise thermal trip points to absolute maximum */
++&cluster6_7_alert {
++	temperature = <100000>;
++};
++
++&cluster6_7_crit {
++	temperature = <105000>;
++};
++
++&ddr_cluster5_alert {
++	temperature = <100000>;
++};
++
++&ddr_cluster5_crit {
++	temperature = <105000>;
++};
++
++&wriop_alert {
++	temperature = <100000>;
++};
++
++&wriop_crit {
++	temperature = <105000>;
++};
++
++&dce_qbman_alert {
++	temperature = <100000>;
++};
++
++&dce_qbman_crit {
++	temperature = <105000>;
++};
++
++&ccn_dpaa_alert {
++	temperature = <100000>;
++};
++
++&ccn_dpaa_crit {
++	temperature = <105000>;
++};
++
++&clust4_hsio3_alert {
++	temperature = <100000>;
++};
++
++&clust4_hsio3_crit {
++	temperature = <105000>;
++};
++
++&cluster2_3_alert {
++	temperature = <100000>;
++};
++
++&cluster2_3_crit {
++	temperature = <105000>;
++};
++
+ &i2c2 {
+ 	i2c-switch@76 {
+ 		compatible = "nxp,pca9547";
+-- 
+2.38.0
+