[PATCH v2 2/3] dt-bindings: crypto: document Exynos5433 SlimSSS

Kamil Konieczny
2019-01-23T16:56:13Z

Document DT bindings for crypto Samsung Exynos5433 SlimSSS (Slim Security
SubSystem) IP.

Signed-off-by: Kamil Konieczny <k.konieczny@partner.samsung.com>
---
.../devicetree/bindings/crypto/samsung-sss.txt | 14 +++++++++++---
1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/crypto/samsung-sss.txt b/Documentation/devicetree/bindings/crypto/samsung-sss.txt
index 7a5ca56683cc..d9af679d38ab 100644
--- a/Documentation/devicetree/bindings/crypto/samsung-sss.txt
+++ b/Documentation/devicetree/bindings/crypto/samsung-sss.txt
@@ -1,4 +1,4 @@
-Samsung SoC SSS (Security SubSystem) module
+Samsung SoC SSS (Security SubSystem) and SlimSSS module

The SSS module in S5PV210 SoC supports the following:
-- Feeder (FeedCtrl)
@@ -15,6 +15,12 @@ supports the following also:
-- True Random Number Generator (TRNG)
-- Secure Key Manager

+Exynos5433 has both SSS and SlimSSS module.
+SlimSSS in Exynos5433 supports:
+-- Feeder (FeedCtrl)
+-- Advanced Encryption Standard (AES)
+-- SHA-1/SHA-256/HMAC (SHA-1/SHA-256)
+
Required properties:

- compatible : Should contain entries for this and backward compatible
@@ -22,11 +28,13 @@ Required properties:
- "samsung,s5pv210-secss" for S5PV210 SoC.
- "samsung,exynos4210-secss" for Exynos4210, Exynos4212, Exynos4412, Exynos5250,
Exynos5260 and Exynos5420 SoCs.
+ - "samsung,exynos5433-slim-sss" for Exynos5433 SoCs.
- reg : Offset and length of the register set for the module
- interrupts : interrupt specifiers of SSS module interrupts (one feed
control interrupt).

- clocks : list of clock phandle and specifier pairs for all clocks listed in
clock-names property.
-- clock-names : list of device clock input names; should contain one entry
- "secss".
+- clock-names : list of device clock input names; should contain "pclk" and
+ "aclk" for slim-sss in Exynos5433, and one entry "secss" for
+ other compatibles.
--
2.20.0