Loading Documentation/devicetree/bindings/arm/msm/imem.txt +10 −0 Original line number Diff line number Diff line Loading @@ -67,6 +67,11 @@ USB Diag Cookies: Memory region used to store USB PID and serial numbers to be used by bootloader in download mode. SSR Minidump Offset ------------------- -Compatible: "qcom,msm-imem-minidump" -reg: start address and size of ssr imem region Required properties: -compatible: "qcom,msm-imem-diag-dload" -reg: start address and size of USB Diag download mode region in imem Loading Loading @@ -115,4 +120,9 @@ Example: compatible = "qcom,msm-imem-emergency_download_mode"; reg = <0xfe0 12>; }; ss_mdump@b88 { compatible = "qcom,msm-imem-minidump"; reg = <0xb88 28>; }; }; Documentation/devicetree/bindings/arm/msm/jtag-mm.txt 0 → 100644 +32 −0 Original line number Diff line number Diff line * JTAG-MM The jtag-mm entry specifies the memory mapped addresses for the debug and ETM registers. The jtag-mm driver uses these to save and restore the registers using memory mapped access during power collapse so as to retain their state across power collapse. This is necessary in case cp14 access to the registers is not permitted. Required Properties: compatible: component name used for driver matching, should be: "qcom,jtag-mm" - for jtag-mm device "qcom,jtagv8-mm" - for jtagv8-mm device supporting ARMv8 targets reg: physical base address and length of the register set reg-names: should be "etm-base" for etm register set and "debug-base" for debug register set. qcom,coresight-jtagmm-cpu: specifies phandle for the cpu associated with the jtag-mm device qcom,si-enable : boolean, indicating etm save and restore is supported via system instructions qcom,save-restore-disable : boolean, to disable etm save and restore functionality Example: jtag_mm: jtagmm@fc332000 { compatible = "qcom,jtag-mm"; reg = <0xfc332000 0x1000>, <0xfc333000 0x1000>; reg-names = "etm-base","debug-base"; qcom,coresight-jtagmm-cpu = <&CPU0>; }; Documentation/devicetree/bindings/arm/msm/lpm-levels.txt +148 −195 Original line number Diff line number Diff line Loading @@ -19,15 +19,14 @@ Required properties: [Node bindings for qcom,pm-cluster] Required properties: - reg - The numeric cluster id - label: Identifies the cluster name. The name will be used when reporting the stats for each low power mode. - qcom,spm-device-names: List of SPM device names which control the low power modes for this driver. The lpm driver uses the device name to obtain a handle to the SPM driver that controls the cluster's low power mode. This is only required if "qcom,use-psci" is not defined. - qcom,default-level: The default low power level that a cluster is programmed. The SPM of the corresponding device is configured at this low power mode by default. - label: Identifies the cluster name. The name is used when reporting the stats for each low power mode. - qcom,psci-mode-shift: The property is used to determine with bit location of the cluster mode in the composite state ID used to define cluster low power modes in PSCI. - qcom,psci-mode-mask: The property is used to determine with bit mask of the cluster mode in the composite state ID used to define cluster low power modes in PSCI. qcom,pm-cluster contains qcom,pm-cluster-level nodes which identify the various low power modes that the cluster can enter. The Loading @@ -39,20 +38,7 @@ Required properties: - reg: The numeric cluster level id - label: Name to identify the low power mode in stats module. - qcom,spm-<device-name>-mode: For each SPM device defined in qcom,spm-devices-names, a corresponding entry identifying the low power mode is expected. For example, the qcom,pm-cluster node contains a SPM device by name "l2" then the cluster level should contain a qcom,spm-l2-mode. When a cluster level is chosen ,the SPM device is programmed with its corresponding low power mode. The accepted values for this property are: - "active" - "wfi" - "retention" - "gdhs" - "pc" - "fpc" - qcom,psci-mode: ID to be passed into the PSCI firmware. - qcom,min-child-idx: The minimum level that a child CPU should be in before this level can be chosen. This property is required for all non-default level. Loading @@ -64,31 +50,13 @@ Required properties: this level in mWatts.uSec - qcom,time-overhead: The time spent in entering and exiting this level in uS Optional properties: - qcom,notify-rpm: When set, the driver flushes the RPM sleep set and configures the virtual MPM driver in prepration for a RPM assisted sleep. - qcom,last-level - When set, the cluster level is applied only when there is 1 online core. - qcom,disable-dynamic-int-routing: When set disables the dynamic routing of rpm-smd and mpm interrupts to next wake up core. - qcom,use-psci: This boolean property allows the LPM modules to terminate in PSCI to configure SPM for low power modes. - qcom,psci-mode-shift: The property is used to determine with bit location of the cluster mode in the composite state ID used to define cluster low power modes in PSCI v1.0. Required only if qcom,use-psci is defined at the lpm-levels root node. - qcom,psci-mode-mask: The property is used to determine with bit mask of the cluster mode in the composite state ID used to define cluster low power modes in PSCI v1.0. Required only if qcom,use-psci is defined at the lpm-levels root node. - qcom,psci-mode: ID to be passed into the PSCI firmware. Required only if qcom,use-psci is defined at the lpm-levels root node. - qcom,is-reset: This boolean property will tell whether cluster level need power management notifications to be sent out or not for the drivers to prepare for cluster collapse. - qcom,hyp-psci: This property is used to determine if the cpu enters the low power mode within hypervisor. - qcom,notify-rpm: When set, the driver configures the sleep and wake sets. It also configures the next wakeup time for APPS. - qcom,is-reset: This boolean property tells whether cluster level need power management notifications to be sent out or not for the drivers to prepare for cluster collapse. - qcom,reset-level: This property is used to determine in this low power mode only control logic power collapse happens or memory logic power collapse aswell happens or retention state. Loading @@ -104,6 +72,8 @@ qcom,pm-cpu contains the low power modes that a cpu could enter and the CPUs that share the parameters.It contains the following properties. - qcom,cpu: List of CPU phandles to identify the CPUs associated with this cluster. - qcom,psci-mode-shift: Same as cluster level fields. - qcom,psci-mode-mask: Same as cluster level fields. - qcom,pm-cpu-levels: The different low power modes that a CPU could enter. The following section explains the required properties of this node. Loading @@ -111,12 +81,8 @@ that share the parameters.It contains the following properties. [Node bindings for qcom,pm-cpu-levels] Required properties: - reg: The numeric cpu level id - qcom,spm-cpu-mode: The sleep mode of the processor, values for the property are: "wfi" - Wait for Interrupt "retention" - Retention "standalone_pc" - Standalone power collapse "pc" - Power Collapse - label: Name to identify the low power mode in stats - qcom,psci-cpu-mode: ID to be passed into PSCI firmware. - qcom,latency-us: The latency in handling the interrupt if this level was chosen, in uSec - qcom,ss-power: The steady state power expelled when the processor is Loading @@ -125,201 +91,188 @@ that share the parameters.It contains the following properties. this level in mWatts.uSec - qcom,time-overhead: The time spent in entering and exiting this level in uS - qcom,use-broadcast-timer: Indicates that the timer gets reset during power collapse and the cpu relies on Broadcast timer for scheduled wakeups. Required only for states where the CPUs internal timer state is lost. Optional properties: - qcom,psci-mode-shift: Same as cluster level fields. - qcom,psci-mode-mask: Same as cluster level fields. - qcom,psci-cpu-mode: ID to be passed into PSCI firmware. - qcom,jtag-save-restore: A boolean specifying jtag registers save and restore required are not. - qcom,is-reset: This boolean property maps to "power state" bit in PSCI state_id configuration. This property will tell whether CPU get reset for a particular LPM or not. This property will also be used to notify the drivers in case of cpu reset. a particular LPM or not. This property is also used to notify the drivers in case of cpu reset. - qcom,use-broadcast-timer: Indicates that the timer gets reset during power collapse and the cpu relies on Broadcast timer for scheduled wakeups. Required only for states where the CPUs internal timer state is lost. [Example dts] qcom,lpm-levels { compatible = "qcom,lpm-levels"; #address-cells = <1>; #size-cells = <0>; compatible = "qcom,lpm-levels"; qcom,pm-cluster@0 { reg = <0>; #address-cells = <1>; #size-cells = <0>; reg = <0>; label = "system"; qcom,spm-device-names = "cci"; qcom,default-level = <0>; label = "L3"; qcom,psci-mode-shift = <4>; qcom,psci-mode-mask = <0xfff>; qcom,pm-cluster-level@0{ qcom,pm-cluster-level@0 { /* D1 */ reg = <0>; label = "system-cci-retention"; qcom,spm-cci-mode = "retention"; qcom,latency-us = <100>; qcom,ss-power = <1000>; qcom,energy-overhead = <300000>; qcom,time-overhead = <100>; label = "l3-wfi"; qcom,psci-mode = <0x1>; qcom,latency-us = <51>; qcom,ss-power = <452>; qcom,energy-overhead = <69355>; qcom,time-overhead = <99>; }; qcom,pm-cluster-level@2{ qcom,pm-cluster-level@1 { /* D2 */ reg = <1>; label = "system-cci-pc"; qcom,spm-cci-mode = "pc"; qcom,latency-us = <30000>; qcom,ss-power = <83>; qcom,energy-overhead = <2274420>; qcom,time-overhead = <6605>; label = "l3-dyn-ret"; qcom,psci-mode = <0x2>; qcom,latency-us = <659>; qcom,ss-power = <434>; qcom,energy-overhead = <465725>; qcom,time-overhead = <976>; qcom,min-child-idx = <1>; qcom,notify-rpm; }; qcom,pm-cluster@0{ #address-cells = <1>; #size-cells = <0>; reg = <0>; label = "a53"; qcom,spm-device-names = "l2"; qcom,default-level=<0>; qcom,pm-cluster-level@2 { /* D4, D3 is not supported */ reg = <2>; label = "l3-pc"; qcom,psci-mode = <0x4>; qcom,latency-us = <4562>; qcom,ss-power = <408>; qcom,energy-overhead = <2421840>; qcom,time-overhead = <5376>; qcom,min-child-idx = <2>; qcom,is-reset; }; qcom,pm-cluster-level@0{ reg = <0>; label = "a53-l2-retention"; qcom,spm-l2-mode = "retention"; qcom,latency-us = <100>; qcom,ss-power = <1000>; qcom,energy-overhead = <300000>; qcom,time-overhead = <100>; qcom,pm-cluster-level@3 { /* Cx off */ reg = <3>; label = "cx-off"; qcom,psci-mode = <0x224>; qcom,latency-us = <5562>; qcom,ss-power = <308>; qcom,energy-overhead = <2521840>; qcom,time-overhead = <6376>; qcom,min-child-idx = <3>; qcom,is-reset; qcom,notify-rpm; }; qcom,pm-cluster-level@1{ reg = <1>; label = "a53-l2-pc"; qcom,spm-l2-mode = "pc"; qcom,latency-us = <30000>; qcom,ss-power = <83>; qcom,energy-overhead = <2274420>; qcom,time-overhead = <6605>; qcom,pm-cluster-level@4 { /* LLCC off, AOSS sleep */ reg = <4>; label = "llcc-off"; qcom,psci-mode = <0xC24>; qcom,latency-us = <6562>; qcom,ss-power = <108>; qcom,energy-overhead = <2621840>; qcom,time-overhead = <7376>; qcom,min-child-idx = <3>; qcom,is-reset; qcom,notify-rpm; }; qcom,pm-cpu { qcom,pm-cpu@0 { #address-cells = <1>; #size-cells = <0>; qcom,psci-mode-shift = <0>; qcom,psci-mode-mask = <0xf>; qcom,cpu = <&CPU0 &CPU1 &CPU2 &CPU3>; qcom,pm-cpu-level@0 { qcom,pm-cpu-level@0 { /* C1 */ reg = <0>; qcom,spm-cpu-mode = "wfi"; qcom,latency-us = <1>; qcom,ss-power = <715>; qcom,energy-overhead = <17700>; qcom,time-overhead = <2>; label = "wfi"; qcom,psci-cpu-mode = <0x1>; qcom,latency-us = <43>; qcom,ss-power = <454>; qcom,energy-overhead = <38639>; qcom,time-overhead = <83>; }; qcom,pm-cpu-level@1 { qcom,pm-cpu-level@1 { /* C2D */ reg = <1>; qcom,spm-cpu-mode = "retention"; qcom,latency-us = <35>; qcom,ss-power = <542>; qcom,energy-overhead = <34920>; qcom,time-overhead = <40>; label = "ret"; qcom,psci-cpu-mode = <0x2>; qcom,latency-us = <86>; qcom,ss-power = <449>; qcom,energy-overhead = <78456>; qcom,time-overhead = <167>; }; qcom,pm-cpu-level@2 { qcom,pm-cpu-level@2 { /* C3 */ reg = <2>; qcom,spm-cpu-mode = "standalone_pc"; qcom,latency-us = <300>; qcom,ss-power = <476>; qcom,energy-overhead = <225300>; qcom,time-overhead = <350>; label = "pc"; qcom,psci-cpu-mode = <0x3>; qcom,latency-us = <612>; qcom,ss-power = <436>; qcom,energy-overhead = <418225>; qcom,time-overhead = <885>; qcom,is-reset; }; qcom,pm-cpu-level@3 { qcom,pm-cpu-level@3 { /* C4 */ reg = <3>; qcom,spm-cpu-mode = "pc"; qcom,latency-us = <500>; qcom,ss-power = <163>; qcom,energy-overhead = <577736>; label = "rail-pc"; qcom,psci-cpu-mode = <0x4>; qcom,latency-us = <700>; qcom,ss-power = <400>; qcom,energy-overhead = <428225>; qcom,time-overhead = <1000>; qcom,is-reset; }; }; }; qcom,pm-cluster@1{ #address-cells = <1>; #size-cells = <0>; reg = <1>; label = "a57"; qcom,spm-device-names = "l2"; qcom,default-level=<0>; qcom,pm-cluster-level@0{ reg = <0>; label = "a57-l2-retention"; qcom,spm-l2-mode = "retention"; qcom,latency-us = <100>; qcom,ss-power = <1000>; qcom,energy-overhead = <300000>; qcom,time-overhead = <100>; }; qcom,pm-cluster-level@2{ reg = <1>; label = "a57-l2-pc"; qcom,spm-l2-mode = "pc"; qcom,latency-us = <30000>; qcom,ss-power = <83>; qcom,energy-overhead = <2274420>; qcom,time-overhead = <6605>; qcom,min-child-idx = <3>; }; qcom,pm-cpu { qcom,pm-cpu@1 { #address-cells = <1>; #size-cells = <0>; qcom,psci-mode-shift = <0>; qcom,psci-mode-mask = <0xf>; qcom,cpu = <&CPU4 &CPU5 &CPU6 &CPU7>; qcom,pm-cpu-level@0 { qcom,pm-cpu-level@0 { /* C1 */ reg = <0>; qcom,spm-cpu-mode = "wfi"; qcom,latency-us = <1>; qcom,ss-power = <715>; qcom,energy-overhead = <17700>; qcom,time-overhead = <2>; label = "wfi"; qcom,psci-cpu-mode = <0x1>; qcom,latency-us = <43>; qcom,ss-power = <454>; qcom,energy-overhead = <38639>; qcom,time-overhead = <83>; }; qcom,pm-cpu-level@1 { qcom,pm-cpu-level@1 { /* C2D */ reg = <1>; qcom,spm-cpu-mode = "retention"; qcom,latency-us = <35>; qcom,ss-power = <542>; qcom,energy-overhead = <34920>; qcom,time-overhead = <40>; label = "ret"; qcom,psci-cpu-mode = <0x2>; qcom,latency-us = <86>; qcom,ss-power = <449>; qcom,energy-overhead = <78456>; qcom,time-overhead = <167>; }; qcom,pm-cpu-level@2 { qcom,pm-cpu-level@2 { /* C3 */ reg = <2>; qcom,spm-cpu-mode = "standalone_pc"; qcom,latency-us = <300>; qcom,ss-power = <476>; qcom,energy-overhead = <225300>; qcom,time-overhead = <350>; label = "pc"; qcom,psci-cpu-mode = <0x3>; qcom,latency-us = <612>; qcom,ss-power = <436>; qcom,energy-overhead = <418225>; qcom,time-overhead = <885>; qcom,is-reset; }; qcom,pm-cpu-level@3 { qcom,pm-cpu-level@3 { /* C4 */ reg = <3>; qcom,spm-cpu-mode = "pc"; qcom,latency-us = <500>; qcom,ss-power = <163>; qcom,energy-overhead = <577736>; label = "rail-pc"; qcom,psci-cpu-mode = <0x4>; qcom,latency-us = <700>; qcom,ss-power = <400>; qcom,energy-overhead = <428225>; qcom,time-overhead = <1000>; qcom,is-reset; }; }; }; }; }; Documentation/devicetree/bindings/arm/msm/msm.txt +6 −0 Original line number Diff line number Diff line Loading @@ -157,6 +157,8 @@ Generic board variants: - RUMI device: compatible = "qcom,rumi" - VR device: compatible = "qcom,qvr" Boards (SoC type + board variant): Loading Loading @@ -267,6 +269,10 @@ compatible = "qcom,sdm845-cdp" compatible = "qcom,sdm845-mtp" compatible = "qcom,sdm845-mtp" compatible = "qcom,sdm845-qrd" compatible = "qcom,sdm845-qvr" compatible = "qcom,sda845-cdp" compatible = "qcom,sda845-mtp" compatible = "qcom,sda845-qrd" compatible = "qcom,sdm670-rumi" compatible = "qcom,sdm670-cdp" compatible = "qcom,sdm670-mtp" Loading Documentation/devicetree/bindings/arm/msm/msm_bus.txt +1 −0 Original line number Diff line number Diff line Loading @@ -139,6 +139,7 @@ qcom,bcm-name: The name used to fetch details about the bcm device from the command DB driver. qcom,drv-id: The DRV id associated with the RSC, used to differentiate between RSCS owned by different execution environments. qcom,defer-init-qos: Flag to force defer initial QoS configuration at probe time. Example: Loading Loading
Documentation/devicetree/bindings/arm/msm/imem.txt +10 −0 Original line number Diff line number Diff line Loading @@ -67,6 +67,11 @@ USB Diag Cookies: Memory region used to store USB PID and serial numbers to be used by bootloader in download mode. SSR Minidump Offset ------------------- -Compatible: "qcom,msm-imem-minidump" -reg: start address and size of ssr imem region Required properties: -compatible: "qcom,msm-imem-diag-dload" -reg: start address and size of USB Diag download mode region in imem Loading Loading @@ -115,4 +120,9 @@ Example: compatible = "qcom,msm-imem-emergency_download_mode"; reg = <0xfe0 12>; }; ss_mdump@b88 { compatible = "qcom,msm-imem-minidump"; reg = <0xb88 28>; }; };
Documentation/devicetree/bindings/arm/msm/jtag-mm.txt 0 → 100644 +32 −0 Original line number Diff line number Diff line * JTAG-MM The jtag-mm entry specifies the memory mapped addresses for the debug and ETM registers. The jtag-mm driver uses these to save and restore the registers using memory mapped access during power collapse so as to retain their state across power collapse. This is necessary in case cp14 access to the registers is not permitted. Required Properties: compatible: component name used for driver matching, should be: "qcom,jtag-mm" - for jtag-mm device "qcom,jtagv8-mm" - for jtagv8-mm device supporting ARMv8 targets reg: physical base address and length of the register set reg-names: should be "etm-base" for etm register set and "debug-base" for debug register set. qcom,coresight-jtagmm-cpu: specifies phandle for the cpu associated with the jtag-mm device qcom,si-enable : boolean, indicating etm save and restore is supported via system instructions qcom,save-restore-disable : boolean, to disable etm save and restore functionality Example: jtag_mm: jtagmm@fc332000 { compatible = "qcom,jtag-mm"; reg = <0xfc332000 0x1000>, <0xfc333000 0x1000>; reg-names = "etm-base","debug-base"; qcom,coresight-jtagmm-cpu = <&CPU0>; };
Documentation/devicetree/bindings/arm/msm/lpm-levels.txt +148 −195 Original line number Diff line number Diff line Loading @@ -19,15 +19,14 @@ Required properties: [Node bindings for qcom,pm-cluster] Required properties: - reg - The numeric cluster id - label: Identifies the cluster name. The name will be used when reporting the stats for each low power mode. - qcom,spm-device-names: List of SPM device names which control the low power modes for this driver. The lpm driver uses the device name to obtain a handle to the SPM driver that controls the cluster's low power mode. This is only required if "qcom,use-psci" is not defined. - qcom,default-level: The default low power level that a cluster is programmed. The SPM of the corresponding device is configured at this low power mode by default. - label: Identifies the cluster name. The name is used when reporting the stats for each low power mode. - qcom,psci-mode-shift: The property is used to determine with bit location of the cluster mode in the composite state ID used to define cluster low power modes in PSCI. - qcom,psci-mode-mask: The property is used to determine with bit mask of the cluster mode in the composite state ID used to define cluster low power modes in PSCI. qcom,pm-cluster contains qcom,pm-cluster-level nodes which identify the various low power modes that the cluster can enter. The Loading @@ -39,20 +38,7 @@ Required properties: - reg: The numeric cluster level id - label: Name to identify the low power mode in stats module. - qcom,spm-<device-name>-mode: For each SPM device defined in qcom,spm-devices-names, a corresponding entry identifying the low power mode is expected. For example, the qcom,pm-cluster node contains a SPM device by name "l2" then the cluster level should contain a qcom,spm-l2-mode. When a cluster level is chosen ,the SPM device is programmed with its corresponding low power mode. The accepted values for this property are: - "active" - "wfi" - "retention" - "gdhs" - "pc" - "fpc" - qcom,psci-mode: ID to be passed into the PSCI firmware. - qcom,min-child-idx: The minimum level that a child CPU should be in before this level can be chosen. This property is required for all non-default level. Loading @@ -64,31 +50,13 @@ Required properties: this level in mWatts.uSec - qcom,time-overhead: The time spent in entering and exiting this level in uS Optional properties: - qcom,notify-rpm: When set, the driver flushes the RPM sleep set and configures the virtual MPM driver in prepration for a RPM assisted sleep. - qcom,last-level - When set, the cluster level is applied only when there is 1 online core. - qcom,disable-dynamic-int-routing: When set disables the dynamic routing of rpm-smd and mpm interrupts to next wake up core. - qcom,use-psci: This boolean property allows the LPM modules to terminate in PSCI to configure SPM for low power modes. - qcom,psci-mode-shift: The property is used to determine with bit location of the cluster mode in the composite state ID used to define cluster low power modes in PSCI v1.0. Required only if qcom,use-psci is defined at the lpm-levels root node. - qcom,psci-mode-mask: The property is used to determine with bit mask of the cluster mode in the composite state ID used to define cluster low power modes in PSCI v1.0. Required only if qcom,use-psci is defined at the lpm-levels root node. - qcom,psci-mode: ID to be passed into the PSCI firmware. Required only if qcom,use-psci is defined at the lpm-levels root node. - qcom,is-reset: This boolean property will tell whether cluster level need power management notifications to be sent out or not for the drivers to prepare for cluster collapse. - qcom,hyp-psci: This property is used to determine if the cpu enters the low power mode within hypervisor. - qcom,notify-rpm: When set, the driver configures the sleep and wake sets. It also configures the next wakeup time for APPS. - qcom,is-reset: This boolean property tells whether cluster level need power management notifications to be sent out or not for the drivers to prepare for cluster collapse. - qcom,reset-level: This property is used to determine in this low power mode only control logic power collapse happens or memory logic power collapse aswell happens or retention state. Loading @@ -104,6 +72,8 @@ qcom,pm-cpu contains the low power modes that a cpu could enter and the CPUs that share the parameters.It contains the following properties. - qcom,cpu: List of CPU phandles to identify the CPUs associated with this cluster. - qcom,psci-mode-shift: Same as cluster level fields. - qcom,psci-mode-mask: Same as cluster level fields. - qcom,pm-cpu-levels: The different low power modes that a CPU could enter. The following section explains the required properties of this node. Loading @@ -111,12 +81,8 @@ that share the parameters.It contains the following properties. [Node bindings for qcom,pm-cpu-levels] Required properties: - reg: The numeric cpu level id - qcom,spm-cpu-mode: The sleep mode of the processor, values for the property are: "wfi" - Wait for Interrupt "retention" - Retention "standalone_pc" - Standalone power collapse "pc" - Power Collapse - label: Name to identify the low power mode in stats - qcom,psci-cpu-mode: ID to be passed into PSCI firmware. - qcom,latency-us: The latency in handling the interrupt if this level was chosen, in uSec - qcom,ss-power: The steady state power expelled when the processor is Loading @@ -125,201 +91,188 @@ that share the parameters.It contains the following properties. this level in mWatts.uSec - qcom,time-overhead: The time spent in entering and exiting this level in uS - qcom,use-broadcast-timer: Indicates that the timer gets reset during power collapse and the cpu relies on Broadcast timer for scheduled wakeups. Required only for states where the CPUs internal timer state is lost. Optional properties: - qcom,psci-mode-shift: Same as cluster level fields. - qcom,psci-mode-mask: Same as cluster level fields. - qcom,psci-cpu-mode: ID to be passed into PSCI firmware. - qcom,jtag-save-restore: A boolean specifying jtag registers save and restore required are not. - qcom,is-reset: This boolean property maps to "power state" bit in PSCI state_id configuration. This property will tell whether CPU get reset for a particular LPM or not. This property will also be used to notify the drivers in case of cpu reset. a particular LPM or not. This property is also used to notify the drivers in case of cpu reset. - qcom,use-broadcast-timer: Indicates that the timer gets reset during power collapse and the cpu relies on Broadcast timer for scheduled wakeups. Required only for states where the CPUs internal timer state is lost. [Example dts] qcom,lpm-levels { compatible = "qcom,lpm-levels"; #address-cells = <1>; #size-cells = <0>; compatible = "qcom,lpm-levels"; qcom,pm-cluster@0 { reg = <0>; #address-cells = <1>; #size-cells = <0>; reg = <0>; label = "system"; qcom,spm-device-names = "cci"; qcom,default-level = <0>; label = "L3"; qcom,psci-mode-shift = <4>; qcom,psci-mode-mask = <0xfff>; qcom,pm-cluster-level@0{ qcom,pm-cluster-level@0 { /* D1 */ reg = <0>; label = "system-cci-retention"; qcom,spm-cci-mode = "retention"; qcom,latency-us = <100>; qcom,ss-power = <1000>; qcom,energy-overhead = <300000>; qcom,time-overhead = <100>; label = "l3-wfi"; qcom,psci-mode = <0x1>; qcom,latency-us = <51>; qcom,ss-power = <452>; qcom,energy-overhead = <69355>; qcom,time-overhead = <99>; }; qcom,pm-cluster-level@2{ qcom,pm-cluster-level@1 { /* D2 */ reg = <1>; label = "system-cci-pc"; qcom,spm-cci-mode = "pc"; qcom,latency-us = <30000>; qcom,ss-power = <83>; qcom,energy-overhead = <2274420>; qcom,time-overhead = <6605>; label = "l3-dyn-ret"; qcom,psci-mode = <0x2>; qcom,latency-us = <659>; qcom,ss-power = <434>; qcom,energy-overhead = <465725>; qcom,time-overhead = <976>; qcom,min-child-idx = <1>; qcom,notify-rpm; }; qcom,pm-cluster@0{ #address-cells = <1>; #size-cells = <0>; reg = <0>; label = "a53"; qcom,spm-device-names = "l2"; qcom,default-level=<0>; qcom,pm-cluster-level@2 { /* D4, D3 is not supported */ reg = <2>; label = "l3-pc"; qcom,psci-mode = <0x4>; qcom,latency-us = <4562>; qcom,ss-power = <408>; qcom,energy-overhead = <2421840>; qcom,time-overhead = <5376>; qcom,min-child-idx = <2>; qcom,is-reset; }; qcom,pm-cluster-level@0{ reg = <0>; label = "a53-l2-retention"; qcom,spm-l2-mode = "retention"; qcom,latency-us = <100>; qcom,ss-power = <1000>; qcom,energy-overhead = <300000>; qcom,time-overhead = <100>; qcom,pm-cluster-level@3 { /* Cx off */ reg = <3>; label = "cx-off"; qcom,psci-mode = <0x224>; qcom,latency-us = <5562>; qcom,ss-power = <308>; qcom,energy-overhead = <2521840>; qcom,time-overhead = <6376>; qcom,min-child-idx = <3>; qcom,is-reset; qcom,notify-rpm; }; qcom,pm-cluster-level@1{ reg = <1>; label = "a53-l2-pc"; qcom,spm-l2-mode = "pc"; qcom,latency-us = <30000>; qcom,ss-power = <83>; qcom,energy-overhead = <2274420>; qcom,time-overhead = <6605>; qcom,pm-cluster-level@4 { /* LLCC off, AOSS sleep */ reg = <4>; label = "llcc-off"; qcom,psci-mode = <0xC24>; qcom,latency-us = <6562>; qcom,ss-power = <108>; qcom,energy-overhead = <2621840>; qcom,time-overhead = <7376>; qcom,min-child-idx = <3>; qcom,is-reset; qcom,notify-rpm; }; qcom,pm-cpu { qcom,pm-cpu@0 { #address-cells = <1>; #size-cells = <0>; qcom,psci-mode-shift = <0>; qcom,psci-mode-mask = <0xf>; qcom,cpu = <&CPU0 &CPU1 &CPU2 &CPU3>; qcom,pm-cpu-level@0 { qcom,pm-cpu-level@0 { /* C1 */ reg = <0>; qcom,spm-cpu-mode = "wfi"; qcom,latency-us = <1>; qcom,ss-power = <715>; qcom,energy-overhead = <17700>; qcom,time-overhead = <2>; label = "wfi"; qcom,psci-cpu-mode = <0x1>; qcom,latency-us = <43>; qcom,ss-power = <454>; qcom,energy-overhead = <38639>; qcom,time-overhead = <83>; }; qcom,pm-cpu-level@1 { qcom,pm-cpu-level@1 { /* C2D */ reg = <1>; qcom,spm-cpu-mode = "retention"; qcom,latency-us = <35>; qcom,ss-power = <542>; qcom,energy-overhead = <34920>; qcom,time-overhead = <40>; label = "ret"; qcom,psci-cpu-mode = <0x2>; qcom,latency-us = <86>; qcom,ss-power = <449>; qcom,energy-overhead = <78456>; qcom,time-overhead = <167>; }; qcom,pm-cpu-level@2 { qcom,pm-cpu-level@2 { /* C3 */ reg = <2>; qcom,spm-cpu-mode = "standalone_pc"; qcom,latency-us = <300>; qcom,ss-power = <476>; qcom,energy-overhead = <225300>; qcom,time-overhead = <350>; label = "pc"; qcom,psci-cpu-mode = <0x3>; qcom,latency-us = <612>; qcom,ss-power = <436>; qcom,energy-overhead = <418225>; qcom,time-overhead = <885>; qcom,is-reset; }; qcom,pm-cpu-level@3 { qcom,pm-cpu-level@3 { /* C4 */ reg = <3>; qcom,spm-cpu-mode = "pc"; qcom,latency-us = <500>; qcom,ss-power = <163>; qcom,energy-overhead = <577736>; label = "rail-pc"; qcom,psci-cpu-mode = <0x4>; qcom,latency-us = <700>; qcom,ss-power = <400>; qcom,energy-overhead = <428225>; qcom,time-overhead = <1000>; qcom,is-reset; }; }; }; qcom,pm-cluster@1{ #address-cells = <1>; #size-cells = <0>; reg = <1>; label = "a57"; qcom,spm-device-names = "l2"; qcom,default-level=<0>; qcom,pm-cluster-level@0{ reg = <0>; label = "a57-l2-retention"; qcom,spm-l2-mode = "retention"; qcom,latency-us = <100>; qcom,ss-power = <1000>; qcom,energy-overhead = <300000>; qcom,time-overhead = <100>; }; qcom,pm-cluster-level@2{ reg = <1>; label = "a57-l2-pc"; qcom,spm-l2-mode = "pc"; qcom,latency-us = <30000>; qcom,ss-power = <83>; qcom,energy-overhead = <2274420>; qcom,time-overhead = <6605>; qcom,min-child-idx = <3>; }; qcom,pm-cpu { qcom,pm-cpu@1 { #address-cells = <1>; #size-cells = <0>; qcom,psci-mode-shift = <0>; qcom,psci-mode-mask = <0xf>; qcom,cpu = <&CPU4 &CPU5 &CPU6 &CPU7>; qcom,pm-cpu-level@0 { qcom,pm-cpu-level@0 { /* C1 */ reg = <0>; qcom,spm-cpu-mode = "wfi"; qcom,latency-us = <1>; qcom,ss-power = <715>; qcom,energy-overhead = <17700>; qcom,time-overhead = <2>; label = "wfi"; qcom,psci-cpu-mode = <0x1>; qcom,latency-us = <43>; qcom,ss-power = <454>; qcom,energy-overhead = <38639>; qcom,time-overhead = <83>; }; qcom,pm-cpu-level@1 { qcom,pm-cpu-level@1 { /* C2D */ reg = <1>; qcom,spm-cpu-mode = "retention"; qcom,latency-us = <35>; qcom,ss-power = <542>; qcom,energy-overhead = <34920>; qcom,time-overhead = <40>; label = "ret"; qcom,psci-cpu-mode = <0x2>; qcom,latency-us = <86>; qcom,ss-power = <449>; qcom,energy-overhead = <78456>; qcom,time-overhead = <167>; }; qcom,pm-cpu-level@2 { qcom,pm-cpu-level@2 { /* C3 */ reg = <2>; qcom,spm-cpu-mode = "standalone_pc"; qcom,latency-us = <300>; qcom,ss-power = <476>; qcom,energy-overhead = <225300>; qcom,time-overhead = <350>; label = "pc"; qcom,psci-cpu-mode = <0x3>; qcom,latency-us = <612>; qcom,ss-power = <436>; qcom,energy-overhead = <418225>; qcom,time-overhead = <885>; qcom,is-reset; }; qcom,pm-cpu-level@3 { qcom,pm-cpu-level@3 { /* C4 */ reg = <3>; qcom,spm-cpu-mode = "pc"; qcom,latency-us = <500>; qcom,ss-power = <163>; qcom,energy-overhead = <577736>; label = "rail-pc"; qcom,psci-cpu-mode = <0x4>; qcom,latency-us = <700>; qcom,ss-power = <400>; qcom,energy-overhead = <428225>; qcom,time-overhead = <1000>; qcom,is-reset; }; }; }; }; };
Documentation/devicetree/bindings/arm/msm/msm.txt +6 −0 Original line number Diff line number Diff line Loading @@ -157,6 +157,8 @@ Generic board variants: - RUMI device: compatible = "qcom,rumi" - VR device: compatible = "qcom,qvr" Boards (SoC type + board variant): Loading Loading @@ -267,6 +269,10 @@ compatible = "qcom,sdm845-cdp" compatible = "qcom,sdm845-mtp" compatible = "qcom,sdm845-mtp" compatible = "qcom,sdm845-qrd" compatible = "qcom,sdm845-qvr" compatible = "qcom,sda845-cdp" compatible = "qcom,sda845-mtp" compatible = "qcom,sda845-qrd" compatible = "qcom,sdm670-rumi" compatible = "qcom,sdm670-cdp" compatible = "qcom,sdm670-mtp" Loading
Documentation/devicetree/bindings/arm/msm/msm_bus.txt +1 −0 Original line number Diff line number Diff line Loading @@ -139,6 +139,7 @@ qcom,bcm-name: The name used to fetch details about the bcm device from the command DB driver. qcom,drv-id: The DRV id associated with the RSC, used to differentiate between RSCS owned by different execution environments. qcom,defer-init-qos: Flag to force defer initial QoS configuration at probe time. Example: Loading
