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Diffstat (limited to 'dts/Bindings/soc/ti/wkup_m3_ipc.txt')
| -rw-r--r-- | dts/Bindings/soc/ti/wkup_m3_ipc.txt | 57 |
1 files changed, 0 insertions, 57 deletions
diff --git a/dts/Bindings/soc/ti/wkup_m3_ipc.txt b/dts/Bindings/soc/ti/wkup_m3_ipc.txt deleted file mode 100644 index 401550487e..0000000000 --- a/dts/Bindings/soc/ti/wkup_m3_ipc.txt +++ /dev/null @@ -1,57 +0,0 @@ -Wakeup M3 IPC Driver -===================== - -The TI AM33xx and AM43xx family of devices use a small Cortex M3 co-processor -(commonly referred to as Wakeup M3 or CM3) to help with various low power tasks -that cannot be controlled from the MPU, like suspend/resume and certain deep -C-states for CPU Idle. Once the wkup_m3_ipc driver uses the wkup_m3_rproc driver -to boot the wkup_m3, it handles communication with the CM3 using IPC registers -present in the SoC's control module and a mailbox. The wkup_m3_ipc exposes an -API to allow the SoC PM code to execute specific PM tasks. - -Wkup M3 Device Node: -==================== -A wkup_m3_ipc device node is used to represent the IPC registers within an -SoC. - -Required properties: --------------------- -- compatible: Should be, - "ti,am3352-wkup-m3-ipc" for AM33xx SoCs - "ti,am4372-wkup-m3-ipc" for AM43xx SoCs -- reg: Contains the IPC register address space to communicate - with the Wakeup M3 processor -- interrupts: Contains the interrupt information for the wkup_m3 - interrupt that signals the MPU. -- ti,rproc: phandle to the wkup_m3 rproc node so the IPC driver - can boot it. -- mboxes: phandles used by IPC framework to get correct mbox - channel for communication. Must point to appropriate - mbox_wkupm3 child node. - -Example: --------- -/* AM33xx */ - l4_wkup: l4_wkup@44c00000 { - ... - - scm: scm@210000 { - compatible = "ti,am3-scm", "simple-bus"; - reg = <0x210000 0x2000>; - #address-cells = <1>; - #size-cells = <1>; - ranges = <0 0x210000 0x2000>; - - ... - - wkup_m3_ipc: wkup_m3_ipc@1324 { - compatible = "ti,am3352-wkup-m3-ipc"; - reg = <0x1324 0x24>; - interrupts = <78>; - ti,rproc = <&wkup_m3>; - mboxes = <&mailbox &mbox_wkupm3>; - }; - - ... - }; - }; |