linux-kernel - [PATCH 1/2] reset: Add brcm,bcm63xx-reset device tree binding

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Message-ID: <565CB83B.7010000@simon.arlott.org.uk>
Date:	Mon, 30 Nov 2015 20:57:31 +0000
From:	Simon Arlott <simon@...e.lp0.eu>
To:	Philipp Zabel <p.zabel@...gutronix.de>,
	Kevin Cernekee <cernekee@...il.com>,
	Florian Fainelli <f.fainelli@...il.com>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>
Cc:	linux-kernel@...r.kernel.org,
	MIPS Mailing List <linux-mips@...ux-mips.org>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>
Subject: [PATCH 1/2] reset: Add brcm,bcm63xx-reset device tree binding

Add device tree binding for the BCM63xx soft reset controller.

The BCM63xx contains a soft-reset controller activated by setting
a bit (that must previously have cleared).

Signed-off-by: Simon Arlott <simon@...e.lp0.eu>
---
 .../bindings/reset/brcm,bcm63xx-reset.txt          | 37 ++++++++++++++++++++++
 1 file changed, 37 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/reset/brcm,bcm63xx-reset.txt

diff --git a/Documentation/devicetree/bindings/reset/brcm,bcm63xx-reset.txt b/Documentation/devicetree/bindings/reset/brcm,bcm63xx-reset.txt
new file mode 100644
index 0000000..48e9daf
--- /dev/null
+++ b/Documentation/devicetree/bindings/reset/brcm,bcm63xx-reset.txt
@@ -0,0 +1,37 @@
+BCM63xx reset controller
+
+The BCM63xx contains a basic soft reset controller in the perf register
+set which resets components using a bit in a register.
+
+Please also refer to reset.txt in this directory for common reset
+controller binding usage.
+
+Required properties:
+- compatible:	Should be "brcm,bcm<soc>-reset", "brcm,bcm63xx-reset"
+- regmap:	The register map phandle
+- offset:	Offset in the register map for the reset register (in bytes)
+- #reset-cells:	Must be set to 1
+
+Optional properties:
+- mask:		Mask of valid reset bits in the reset register (32 bit access)
+		(Defaults to all bits)
+
+Example:
+
+periph_soft_rst: reset-controller {
+	compatible = "brcm,bcm63168-reset", "brcm,bcm63xx-reset";
+	regmap = <&periph_cntl>;
+	offset = <0x10>;
+
+	#reset-cells = <1>;
+};
+
+usbh: usbphy@...02700 {
+	compatible = "brcm,bcm63168-usbh";
+	reg = <0x10002700 0x38>;
+	clocks = <&periph_clk 13>, <&timer_clk 18>;
+	resets = <&periph_soft_rst 6>;
+	power-supply = <&power_usbh>;
+	#phy-cells = <0>;
+};
+
-- 
2.1.4

-- 
Simon Arlott
--
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