Add the device tree bindings document for ti,am3353-wkup-m3 which is
used by the wkup_m3_rproc driver.
Signed-off-by: Dave Gerlach <d-gerlach@xxxxxx>
---
.../bindings/remoteproc/wkup_m3_rproc.txt | 32 ++++++++++++++++++++++
1 file changed, 32 insertions(+)
create mode 100644 Documentation/devicetree/bindings/remoteproc/wkup_m3_rproc.txt
diff --git a/Documentation/devicetree/bindings/remoteproc/wkup_m3_rproc.txt b/Documentation/devicetree/bindings/remoteproc/wkup_m3_rproc.txt
new file mode 100644
index 0000000..4d64a23
--- /dev/null
+++ b/Documentation/devicetree/bindings/remoteproc/wkup_m3_rproc.txt
@@ -0,0 +1,32 @@
+Wakeup M3 Remote Proc Driver
+=====================
+
+TI AMx3 family of devices use a Cortex M3 co-processor to help with various
+low power tasks that cannot be controlled from the MPU. The CM3 requires
+a firmware binary to accomplish this. The wkup_m3 remoteproc driver handles
+the loading of the firmware and booting of the CM3.
+
+Wkup M3 Device Node:
+====================
+A wkup_m3 device node is used to represent a wakeup M3 IP instance within
+a SoC.
+
+Required properties:
+--------------------
+- compatible: Should be "ti,am3353-wkup-m3" for AM33xx SoCs
+- reg: Contains the wkup_m3 register address ranges for
+ umem and dmem.
+- ti,hwmods: Name of the hwmod associated with the mailbox
+- ti,no-reset-on-init: Reset is handled after fw has been loaded, not at
+ init of hwmod.
+
+Example:
+--------
+/* AM33xx */
+wkup_m3: wkup_m3@44d00000 {
+ compatible = "ti,am3353-wkup-m3";
+ reg = <0x44d00000 0x4000 /* M3 UMEM */
+ 0x44d80000 0x2000>; /* M3 DMEM */
+ ti,hwmods = "wkup_m3";
+ ti,no-reset-on-init;
+};
--
2.1.0
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