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* [PATCH 1/3] ARM: at91: Add Special Function Registers binding documentation
@ 2014-11-10 15:14 Alexandre Belloni
       [not found] ` <1415632471-14672-1-git-send-email-alexandre.belloni-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
  0 siblings, 1 reply; 2+ messages in thread
From: Alexandre Belloni @ 2014-11-10 15:14 UTC (permalink / raw)
  To: Nicolas Ferre
  Cc: Jean-Christophe Plagniol-Villard, Boris Brezillon,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA,
	linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
	Alexandre Belloni, devicetree-u79uwXL29TY76Z2rM5mHXA

The special function registers gather some registers that allow to tweak
features provided by IPs controlled through another register range.

Signed-off-by: Alexandre Belloni <alexandre.belloni-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
---
 Documentation/devicetree/bindings/arm/atmel-at91.txt | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/atmel-at91.txt b/Documentation/devicetree/bindings/arm/atmel-at91.txt
index 562cda9d86d9..a6427de45785 100644
--- a/Documentation/devicetree/bindings/arm/atmel-at91.txt
+++ b/Documentation/devicetree/bindings/arm/atmel-at91.txt
@@ -136,3 +136,20 @@ Example:
 		compatible = "atmel,at91sam9260-rstc";
 		reg = <0xfffffd00 0x10>;
 	};
+
+Special Function Registers (SFR)
+
+Special Function Registers (SFR) manage specific aspects of the integrated
+memory, bridge implementations, processor and other functionality not controlled
+elsewhere.
+
+required properties:
+- compatible: Should be "atmel,<chip>-sfr", "syscon".
+  <chip> can be "at91sam9260", "at91sam9rl" or "at91sam9x5".
+- reg: Should contain registers location and length
+
+	sfr@f0038000 {
+		compatible = "atmel,sama5d3-sfr", "syscon";
+		reg = <0xf0038000 0x4000>;
+	};
+
-- 
2.1.0

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2014-11-10 15:14 [PATCH 1/3] ARM: at91: Add Special Function Registers binding documentation Alexandre Belloni
     [not found] ` <1415632471-14672-1-git-send-email-alexandre.belloni-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
2014-11-13  9:48   ` Boris Brezillon

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