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Commit 6b9f16e6 authored by Naveen Krishna Chatradhi's avatar Naveen Krishna Chatradhi Committed by Herbert Xu
Browse files

crypto: s5p-sss - Add device tree support 



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

Signed-off-by: default avatarNaveen Krishna Chatradhi <ch.naveen@samsung.com>
CC: David S. Miller <davem@davemloft.net>
CC: <linux-samsung-soc@vger.kernel.org>
Acked-by: default avatarVladimir Zapolskiy <vz@mleia.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 96fc70b6

Documentation/devicetree/bindings/crypto/samsung-sss.txt

0 → 100644
+25 −0
Original line number Diff line number Diff line 
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".

drivers/crypto/s5p-sss.c

+8 −0
Original line number Diff line number Diff line
@@ -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,

	},

};