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authorNaveen Krishna Chatradhi <ch.naveen@samsung.com>2014-05-08 17:58:13 +0400
committerHerbert Xu <herbert@gondor.apana.org.au>2014-05-08 17:58:13 +0400
commit6b9f16e6c2b712f724e6ca1538d18ea8a788dd90 (patch)
tree0c813baee07cb1dac4e67835268384f4f3d5d6f7
parent96fc70b63c51199b96bee1b90c939fa75d611332 (diff)
downloadlinux-6b9f16e6c2b712f724e6ca1538d18ea8a788dd90.tar.xz
crypto: s5p-sss - Add device tree support
This patch adds device tree support to the s5p-sss.c crypto driver. Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com> CC: David S. Miller <davem@davemloft.net> CC: <linux-samsung-soc@vger.kernel.org> Acked-by: Vladimir Zapolskiy <vz@mleia.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
-rw-r--r--Documentation/devicetree/bindings/crypto/samsung-sss.txt25
-rw-r--r--drivers/crypto/s5p-sss.c8
2 files changed, 33 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/crypto/samsung-sss.txt b/Documentation/devicetree/bindings/crypto/samsung-sss.txt
new file mode 100644
index 000000000000..f6e09a6231f4
--- /dev/null
+++ b/Documentation/devicetree/bindings/crypto/samsung-sss.txt
@@ -0,0 +1,25 @@
+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 : interrupt specifiers of SSS module interrupts, should contain
+ two entries:
+ - first : feed control interrupt,
+ - second : hash 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".
diff --git a/drivers/crypto/s5p-sss.c b/drivers/crypto/s5p-sss.c
index 2876fa37d1f9..c6aafe84e06a 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));
@@ -672,6 +679,7 @@ static struct platform_driver s5p_aes_crypto = {
.driver = {
.owner = THIS_MODULE,
.name = "s5p-secss",
+ .of_match_table = s5p_sss_dt_match,
},
};