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authorAlexandre Belloni <alexandre.belloni@free-electrons.com>2016-09-22 00:09:34 +0200
committerAlexandre Belloni <alexandre.belloni@free-electrons.com>2016-11-07 23:43:26 +0100
commite07fd0f67a43966b05222e81c938bc20db11a91d (patch)
tree0c6fc54622262d8453d96d58a5564c156b5f086d
parentaf692400608857f7d7c3189c150c0b1d6b0ffad0 (diff)
Documentation: dt: atmel-at91: Document secumod bindings
A security module is available starting with sama5d2, add its bindings. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Rob Herring <robh@kernel.org>
-rw-r--r--Documentation/devicetree/bindings/arm/atmel-at91.txt16
1 files changed, 16 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/arm/atmel-at91.txt b/Documentation/devicetree/bindings/arm/atmel-at91.txt
index e1f5ad8..29737b9 100644
--- a/Documentation/devicetree/bindings/arm/atmel-at91.txt
+++ b/Documentation/devicetree/bindings/arm/atmel-at91.txt
@@ -225,3 +225,19 @@ required properties:
compatible = "atmel,sama5d3-sfr", "syscon";
reg = <0xf0038000 0x60>;
};
+
+Security Module (SECUMOD)
+
+The Security Module macrocell provides all necessary secure functions to avoid
+voltage, temperature, frequency and mechanical attacks on the chip. It also
+embeds secure memories that can be scrambled
+
+required properties:
+- compatible: Should be "atmel,<chip>-secumod", "syscon".
+ <chip> can be "sama5d2".
+- reg: Should contain registers location and length
+
+ secumod@fc040000 {
+ compatible = "atmel,sama5d2-secumod", "syscon";
+ reg = <0xfc040000 0x100>;
+ };