linux-kernel - [RFC PATCH 2/3] Documentation: dt: add ti,am3353-wkup-m3 bindings

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Message-ID: <13e848f10614c0a276e54759e606210971d63fe0.1417029919.git.d-gerlach@ti.com>
Date:	Wed, 26 Nov 2014 15:27:11 -0600
From:	Dave Gerlach <d-gerlach@...com>
To:	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, <linux-omap@...r.kernel.org>,
	<devicetree@...r.kernel.org>
CC:	Tony Lindgren <tony@...mide.com>, Paul Walmsley <paul@...an.com>,
	Benoit Cousson <bcousson@...libre.com>,
	Kevin Hilman <khilman@...aro.org>,
	Ohad Ben-Cohen <ohad@...ery.com>, Suman Anna <s-anna@...com>,
	Dave Gerlach <d-gerlach@...com>
Subject: [RFC PATCH 2/3] Documentation: dt: add ti,am3353-wkup-m3 bindings

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@...com>
---
 .../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@...00000 {
+	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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