linux-kernel - [PATCH 2/9 v5] crypto:s5p-sss: Add device tree support

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-id: <1390987259-18581-1-git-send-email-ch.naveen@samsung.com>
Date:	Wed, 29 Jan 2014 14:50:59 +0530
From:	Naveen Krishna Chatradhi <ch.naveen@...sung.com>
To:	linux-crypto@...r.kernel.org, linux-samsung-soc@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, vzapolskiy@...il.com,
	herbert@...dor.apana.org.au, naveenkrishna.ch@...il.com,
	cpgs@...sung.com, devicetree@...r.kernel.org,
	"David S. Miller" <davem@...emloft.net>
Subject: [PATCH 2/9 v5] crypto:s5p-sss: Add device tree support

This patch adds device tree support to the s5p-sss.c crypto driver.

Also, Documentation under devicetree/bindings added.

Signed-off-by: Naveen Krishna Ch <ch.naveen@...sung.com>
CC: Herbert Xu <herbert@...dor.apana.org.au>
CC: David S. Miller <davem@...emloft.net>
CC: Vladimir Zapolskiy <vzapolskiy@...il.com>
TO: <linux-crypto@...r.kernel.org>
CC: <linux-samsung-soc@...r.kernel.org>
---
Changes since v4:
Modified Documentation to give clock names and example for interrupts

Changes since v3:
None
 .../devicetree/bindings/crypto/samsung-sss.txt     |   24 ++++++++++++++++++++
 drivers/crypto/s5p-sss.c                           |    8 +++++++
 2 files changed, 32 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/crypto/samsung-sss.txt

diff --git a/Documentation/devicetree/bindings/crypto/samsung-sss.txt b/Documentation/devicetree/bindings/crypto/samsung-sss.txt
new file mode 100644
index 0000000..d193084
--- /dev/null
+++ b/Documentation/devicetree/bindings/crypto/samsung-sss.txt
@@ -0,0 +1,24 @@
+Samsung SoC SSS (Security SubSystem) module
+
+The SSS module in S5PV210 SoC supports the following:
+-- Feeder (FeedCtrl)
+-- Advanced Encryption Standard (AES)
+-- Data Encryption Standard (DES)/3DES
+-- Public Key Accelerator (PKA)
+-- SHA-1/SHA-256/MD5/HMAC (SHA-1/SHA-256/MD5)/PRNG
+-- PRNG: Pseudo Random Number Generator
+
+Required properties:
+
+- compatible : Should contain entries for this and backward compatible
+  SSS versions:
+  - "samsung,s5pv210-secss" for S5PV210 SoC.
+- reg : Offset and length of the register set for the module
+- interrupts : the interrupt-specifier for the SSS module.
+		Two interrupts "feed control and hash" in case of S5PV210
+	   Eg : interrupts = <0 feed-control 0> <0 hash 0>;
+- 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".
+
diff --git a/drivers/crypto/s5p-sss.c b/drivers/crypto/s5p-sss.c
index 93cddeb..73c8b38 100644
--- a/drivers/crypto/s5p-sss.c
+++ b/drivers/crypto/s5p-sss.c
@@ -22,6 +22,7 @@
 #include <linux/scatterlist.h>
 #include <linux/dma-mapping.h>
 #include <linux/io.h>
+#include <linux/of.h>
 #include <linux/crypto.h>
 #include <linux/interrupt.h>
 
@@ -177,6 +178,12 @@ struct s5p_aes_dev {
 
 static struct s5p_aes_dev *s5p_dev;
 
+static const struct of_device_id s5p_sss_dt_match[] = {
+	{ .compatible = "samsung,s5pv210-secss" },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, s5p_sss_dt_match);
+
 static void s5p_set_dma_indata(struct s5p_aes_dev *dev, struct scatterlist *sg)
 {
 	SSS_WRITE(dev, FCBRDMAS, sg_dma_address(sg));
@@ -677,6 +684,7 @@ static struct platform_driver s5p_aes_crypto = {
 	.driver	= {
 		.owner	= THIS_MODULE,
 		.name	= "s5p-secss",
+		.of_match_table = s5p_sss_dt_match,
 	},
 };
 
-- 
1.7.9.5

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/