Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

Pull crypto update from Herbert Xu:
 "Here is the crypto update for 3.9:

   - Added accelerated implementation of crc32 using pclmulqdq.

   - Added test vector for fcrypt.

   - Added support for OMAP4/AM33XX cipher and hash.

   - Fixed loose crypto_user input checks.

   - Misc fixes"

* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (43 commits)
  crypto: user - ensure user supplied strings are nul-terminated
  crypto: user - fix empty string test in report API
  crypto: user - fix info leaks in report API
  crypto: caam - Added property fsl,sec-era in SEC4.0 device tree binding.
  crypto: use ERR_CAST
  crypto: atmel-aes - adjust duplicate test
  crypto: crc32-pclmul - Kill warning on x86-32
  crypto: x86/twofish - assembler clean-ups: use ENTRY/ENDPROC, localize jump labels
  crypto: x86/sha1 - assembler clean-ups: use ENTRY/ENDPROC
  crypto: x86/serpent - use ENTRY/ENDPROC for assember functions and localize jump targets
  crypto: x86/salsa20 - assembler cleanup, use ENTRY/ENDPROC for assember functions and rename ECRYPT_* to salsa20_*
  crypto: x86/ghash - assembler clean-up: use ENDPROC at end of assember functions
  crypto: x86/crc32c - assembler clean-up: use ENTRY/ENDPROC
  crypto: cast6-avx: use ENTRY()/ENDPROC() for assembler functions
  crypto: cast5-avx: use ENTRY()/ENDPROC() for assembler functions and localize jump targets
  crypto: camellia-x86_64/aes-ni: use ENTRY()/ENDPROC() for assembler functions and localize jump targets
  crypto: blowfish-x86_64: use ENTRY()/ENDPROC() for assembler functions and localize jump targets
  crypto: aesni-intel - add ENDPROC statements for assembler functions
  crypto: x86/aes - assembler clean-ups: use ENTRY/ENDPROC, localize jump targets
  crypto: testmgr - add test vector for fcrypt
  ...

1 files changed, 721 insertions, 197 deletions

diff --git a/drivers/crypto/omap-sham.c b/drivers/crypto/omap-sham.c
index 9e6947bc296..3d1611f5aec 100644
--- a/drivers/crypto/omap-sham.c
+++ b/drivers/crypto/omap-sham.c
@@ -5,6 +5,7 @@
  *
  * Copyright (c) 2010 Nokia Corporation
  * Author: Dmitry Kasatkin <dmitry.kasatkin@nokia.com>
+ * Copyright (c) 2011 Texas Instruments Incorporated
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as published
@@ -22,12 +23,18 @@
 #include <linux/errno.h>
 #include <linux/interrupt.h>
 #include <linux/kernel.h>
-#include <linux/clk.h>
 #include <linux/irq.h>
 #include <linux/io.h>
 #include <linux/platform_device.h>
 #include <linux/scatterlist.h>
 #include <linux/dma-mapping.h>
+#include <linux/dmaengine.h>
+#include <linux/omap-dma.h>
+#include <linux/pm_runtime.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
 #include <linux/delay.h>
 #include <linux/crypto.h>
 #include <linux/cryptohash.h>
@@ -37,19 +44,17 @@
 #include <crypto/hash.h>
 #include <crypto/internal/hash.h>
 
-#include <linux/omap-dma.h>
-
-#ifdef CONFIG_ARCH_OMAP1
-#include <mach/irqs.h>
-#endif
-
-#define SHA_REG_DIGEST(x)		(0x00 + ((x) * 0x04))
-#define SHA_REG_DIN(x)			(0x1C + ((x) * 0x04))
-
 #define SHA1_MD5_BLOCK_SIZE		SHA1_BLOCK_SIZE
 #define MD5_DIGEST_SIZE			16
 
-#define SHA_REG_DIGCNT			0x14
+#define DST_MAXBURST			16
+#define DMA_MIN				(DST_MAXBURST * sizeof(u32))
+
+#define SHA_REG_IDIGEST(dd, x)		((dd)->pdata->idigest_ofs + ((x)*0x04))
+#define SHA_REG_DIN(dd, x)		((dd)->pdata->din_ofs + ((x) * 0x04))
+#define SHA_REG_DIGCNT(dd)		((dd)->pdata->digcnt_ofs)
+
+#define SHA_REG_ODIGEST(x)		(0x00 + ((x) * 0x04))
 
 #define SHA_REG_CTRL			0x18
 #define SHA_REG_CTRL_LENGTH		(0xFFFFFFFF << 5)
@@ -59,19 +64,42 @@
 #define SHA_REG_CTRL_INPUT_READY	(1 << 1)
 #define SHA_REG_CTRL_OUTPUT_READY	(1 << 0)
 
-#define SHA_REG_REV			0x5C
-#define SHA_REG_REV_MAJOR		0xF0
-#define SHA_REG_REV_MINOR		0x0F
+#define SHA_REG_REV(dd)			((dd)->pdata->rev_ofs)
 
-#define SHA_REG_MASK			0x60
+#define SHA_REG_MASK(dd)		((dd)->pdata->mask_ofs)
 #define SHA_REG_MASK_DMA_EN		(1 << 3)
 #define SHA_REG_MASK_IT_EN		(1 << 2)
 #define SHA_REG_MASK_SOFTRESET		(1 << 1)
 #define SHA_REG_AUTOIDLE		(1 << 0)
 
-#define SHA_REG_SYSSTATUS		0x64
+#define SHA_REG_SYSSTATUS(dd)		((dd)->pdata->sysstatus_ofs)
 #define SHA_REG_SYSSTATUS_RESETDONE	(1 << 0)
 
+#define SHA_REG_MODE			0x44
+#define SHA_REG_MODE_HMAC_OUTER_HASH	(1 << 7)
+#define SHA_REG_MODE_HMAC_KEY_PROC	(1 << 5)
+#define SHA_REG_MODE_CLOSE_HASH		(1 << 4)
+#define SHA_REG_MODE_ALGO_CONSTANT	(1 << 3)
+#define SHA_REG_MODE_ALGO_MASK		(3 << 1)
+#define		SHA_REG_MODE_ALGO_MD5_128	(0 << 1)
+#define		SHA_REG_MODE_ALGO_SHA1_160	(1 << 1)
+#define		SHA_REG_MODE_ALGO_SHA2_224	(2 << 1)
+#define		SHA_REG_MODE_ALGO_SHA2_256	(3 << 1)
+
+#define SHA_REG_LENGTH			0x48
+
+#define SHA_REG_IRQSTATUS		0x118
+#define SHA_REG_IRQSTATUS_CTX_RDY	(1 << 3)
+#define SHA_REG_IRQSTATUS_PARTHASH_RDY (1 << 2)
+#define SHA_REG_IRQSTATUS_INPUT_RDY	(1 << 1)
+#define SHA_REG_IRQSTATUS_OUTPUT_RDY	(1 << 0)
+
+#define SHA_REG_IRQENA			0x11C
+#define SHA_REG_IRQENA_CTX_RDY		(1 << 3)
+#define SHA_REG_IRQENA_PARTHASH_RDY	(1 << 2)
+#define SHA_REG_IRQENA_INPUT_RDY	(1 << 1)
+#define SHA_REG_IRQENA_OUTPUT_RDY	(1 << 0)
+
 #define DEFAULT_TIMEOUT_INTERVAL	HZ
 
 /* mostly device flags */
@@ -82,20 +110,33 @@
 #define FLAGS_INIT		4
 #define FLAGS_CPU		5
 #define FLAGS_DMA_READY		6
+#define FLAGS_AUTO_XOR		7
+#define FLAGS_BE32_SHA1		8
 /* context flags */
 #define FLAGS_FINUP		16
 #define FLAGS_SG		17
-#define FLAGS_SHA1		18
-#define FLAGS_HMAC		19
-#define FLAGS_ERROR		20
 
-#define OP_UPDATE	1
-#define OP_FINAL	2
+#define FLAGS_MODE_SHIFT	18
+#define FLAGS_MODE_MASK		(SHA_REG_MODE_ALGO_MASK			\
+					<< (FLAGS_MODE_SHIFT - 1))
+#define		FLAGS_MODE_MD5		(SHA_REG_MODE_ALGO_MD5_128	\
+						<< (FLAGS_MODE_SHIFT - 1))
+#define		FLAGS_MODE_SHA1		(SHA_REG_MODE_ALGO_SHA1_160	\
+						<< (FLAGS_MODE_SHIFT - 1))
+#define		FLAGS_MODE_SHA224	(SHA_REG_MODE_ALGO_SHA2_224	\
+						<< (FLAGS_MODE_SHIFT - 1))
+#define		FLAGS_MODE_SHA256	(SHA_REG_MODE_ALGO_SHA2_256	\
+						<< (FLAGS_MODE_SHIFT - 1))
+#define FLAGS_HMAC		20
+#define FLAGS_ERROR		21
+
+#define OP_UPDATE		1
+#define OP_FINAL		2
 
 #define OMAP_ALIGN_MASK		(sizeof(u32)-1)
 #define OMAP_ALIGNED		__attribute__((aligned(sizeof(u32))))
 
-#define BUFLEN		PAGE_SIZE
+#define BUFLEN			PAGE_SIZE
 
 struct omap_sham_dev;
 
@@ -104,7 +145,7 @@ struct omap_sham_reqctx {
 	unsigned long		flags;
 	unsigned long		op;
 
-	u8			digest[SHA1_DIGEST_SIZE] OMAP_ALIGNED;
+	u8			digest[SHA256_DIGEST_SIZE] OMAP_ALIGNED;
 	size_t			digcnt;
 	size_t			bufcnt;
 	size_t			buflen;
@@ -112,6 +153,7 @@ struct omap_sham_reqctx {
 
 	/* walk state */
 	struct scatterlist	*sg;
+	struct scatterlist	sgl;
 	unsigned int		offset;	/* offset in current sg */
 	unsigned int		total;	/* total request */
 
@@ -120,8 +162,8 @@ struct omap_sham_reqctx {
 
 struct omap_sham_hmac_ctx {
 	struct crypto_shash	*shash;
-	u8			ipad[SHA1_MD5_BLOCK_SIZE];
-	u8			opad[SHA1_MD5_BLOCK_SIZE];
+	u8			ipad[SHA1_MD5_BLOCK_SIZE] OMAP_ALIGNED;
+	u8			opad[SHA1_MD5_BLOCK_SIZE] OMAP_ALIGNED;
 };
 
 struct omap_sham_ctx {
@@ -137,22 +179,56 @@ struct omap_sham_ctx {
 
 #define OMAP_SHAM_QUEUE_LENGTH	1
 
+struct omap_sham_algs_info {
+	struct ahash_alg	*algs_list;
+	unsigned int		size;
+	unsigned int		registered;
+};
+
+struct omap_sham_pdata {
+	struct omap_sham_algs_info	*algs_info;
+	unsigned int	algs_info_size;
+	unsigned long	flags;
+	int		digest_size;
+
+	void		(*copy_hash)(struct ahash_request *req, int out);
+	void		(*write_ctrl)(struct omap_sham_dev *dd, size_t length,
+				      int final, int dma);
+	void		(*trigger)(struct omap_sham_dev *dd, size_t length);
+	int		(*poll_irq)(struct omap_sham_dev *dd);
+	irqreturn_t	(*intr_hdlr)(int irq, void *dev_id);
+
+	u32		odigest_ofs;
+	u32		idigest_ofs;
+	u32		din_ofs;
+	u32		digcnt_ofs;
+	u32		rev_ofs;
+	u32		mask_ofs;
+	u32		sysstatus_ofs;
+
+	u32		major_mask;
+	u32		major_shift;
+	u32		minor_mask;
+	u32		minor_shift;
+};
+
 struct omap_sham_dev {
 	struct list_head	list;
 	unsigned long		phys_base;
 	struct device		*dev;
 	void __iomem		*io_base;
 	int			irq;
-	struct clk		*iclk;
 	spinlock_t		lock;
 	int			err;
-	int			dma;
-	int			dma_lch;
+	unsigned int		dma;
+	struct dma_chan		*dma_lch;
 	struct tasklet_struct	done_task;
 
 	unsigned long		flags;
 	struct crypto_queue	queue;
 	struct ahash_request	*req;
+
+	const struct omap_sham_pdata	*pdata;
 };
 
 struct omap_sham_drv {
@@ -200,21 +276,44 @@ static inline int omap_sham_wait(struct omap_sham_dev *dd, u32 offset, u32 bit)
 	return 0;
 }
 
-static void omap_sham_copy_hash(struct ahash_request *req, int out)
+static void omap_sham_copy_hash_omap2(struct ahash_request *req, int out)
 {
 	struct omap_sham_reqctx *ctx = ahash_request_ctx(req);
+	struct omap_sham_dev *dd = ctx->dd;
 	u32 *hash = (u32 *)ctx->digest;
 	int i;
 
-	/* MD5 is almost unused. So copy sha1 size to reduce code */
-	for (i = 0; i < SHA1_DIGEST_SIZE / sizeof(u32); i++) {
+	for (i = 0; i < dd->pdata->digest_size / sizeof(u32); i++) {
 		if (out)
-			hash[i] = omap_sham_read(ctx->dd,
-						SHA_REG_DIGEST(i));
+			hash[i] = omap_sham_read(dd, SHA_REG_IDIGEST(dd, i));
 		else
-			omap_sham_write(ctx->dd,
-					SHA_REG_DIGEST(i), hash[i]);
+			omap_sham_write(dd, SHA_REG_IDIGEST(dd, i), hash[i]);
+	}
+}
+
+static void omap_sham_copy_hash_omap4(struct ahash_request *req, int out)
+{
+	struct omap_sham_reqctx *ctx = ahash_request_ctx(req);
+	struct omap_sham_dev *dd = ctx->dd;
+	int i;
+
+	if (ctx->flags & BIT(FLAGS_HMAC)) {
+		struct crypto_ahash *tfm = crypto_ahash_reqtfm(dd->req);
+		struct omap_sham_ctx *tctx = crypto_ahash_ctx(tfm);
+		struct omap_sham_hmac_ctx *bctx = tctx->base;
+		u32 *opad = (u32 *)bctx->opad;
+
+		for (i = 0; i < dd->pdata->digest_size / sizeof(u32); i++) {
+			if (out)
+				opad[i] = omap_sham_read(dd,
+						SHA_REG_ODIGEST(i));
+			else
+				omap_sham_write(dd, SHA_REG_ODIGEST(i),
+						opad[i]);
+		}
 	}
+
+	omap_sham_copy_hash_omap2(req, out);
 }
 
 static void omap_sham_copy_ready_hash(struct ahash_request *req)
@@ -222,34 +321,44 @@ static void omap_sham_copy_ready_hash(struct ahash_request *req)
 	struct omap_sham_reqctx *ctx = ahash_request_ctx(req);
 	u32 *in = (u32 *)ctx->digest;
 	u32 *hash = (u32 *)req->result;
-	int i;
+	int i, d, big_endian = 0;
 
 	if (!hash)
 		return;
 
-	if (likely(ctx->flags & BIT(FLAGS_SHA1))) {
-		/* SHA1 results are in big endian */
-		for (i = 0; i < SHA1_DIGEST_SIZE / sizeof(u32); i++)
+	switch (ctx->flags & FLAGS_MODE_MASK) {
+	case FLAGS_MODE_MD5:
+		d = MD5_DIGEST_SIZE / sizeof(u32);
+		break;
+	case FLAGS_MODE_SHA1:
+		/* OMAP2 SHA1 is big endian */
+		if (test_bit(FLAGS_BE32_SHA1, &ctx->dd->flags))
+			big_endian = 1;
+		d = SHA1_DIGEST_SIZE / sizeof(u32);
+		break;
+	case FLAGS_MODE_SHA224:
+		d = SHA224_DIGEST_SIZE / sizeof(u32);
+		break;
+	case FLAGS_MODE_SHA256:
+		d = SHA256_DIGEST_SIZE / sizeof(u32);
+		break;
+	default:
+		d = 0;
+	}
+
+	if (big_endian)
+		for (i = 0; i < d; i++)
 			hash[i] = be32_to_cpu(in[i]);
-	} else {
-		/* MD5 results are in little endian */
-		for (i = 0; i < MD5_DIGEST_SIZE / sizeof(u32); i++)
+	else
+		for (i = 0; i < d; i++)
 			hash[i] = le32_to_cpu(in[i]);
-	}
 }
 
 static int omap_sham_hw_init(struct omap_sham_dev *dd)
 {
-	clk_enable(dd->iclk);
+	pm_runtime_get_sync(dd->dev);
 
 	if (!test_bit(FLAGS_INIT, &dd->flags)) {
-		omap_sham_write_mask(dd, SHA_REG_MASK,
-			SHA_REG_MASK_SOFTRESET, SHA_REG_MASK_SOFTRESET);
-
-		if (omap_sham_wait(dd, SHA_REG_SYSSTATUS,
-					SHA_REG_SYSSTATUS_RESETDONE))
-			return -ETIMEDOUT;
-
 		set_bit(FLAGS_INIT, &dd->flags);
 		dd->err = 0;
 	}
@@ -257,23 +366,23 @@ static int omap_sham_hw_init(struct omap_sham_dev *dd)
 	return 0;
 }
 
-static void omap_sham_write_ctrl(struct omap_sham_dev *dd, size_t length,
+static void omap_sham_write_ctrl_omap2(struct omap_sham_dev *dd, size_t length,
 				 int final, int dma)
 {
 	struct omap_sham_reqctx *ctx = ahash_request_ctx(dd->req);
 	u32 val = length << 5, mask;
 
 	if (likely(ctx->digcnt))
-		omap_sham_write(dd, SHA_REG_DIGCNT, ctx->digcnt);
+		omap_sham_write(dd, SHA_REG_DIGCNT(dd), ctx->digcnt);
 
-	omap_sham_write_mask(dd, SHA_REG_MASK,
+	omap_sham_write_mask(dd, SHA_REG_MASK(dd),
 		SHA_REG_MASK_IT_EN | (dma ? SHA_REG_MASK_DMA_EN : 0),
 		SHA_REG_MASK_IT_EN | SHA_REG_MASK_DMA_EN);
 	/*
 	 * Setting ALGO_CONST only for the first iteration
 	 * and CLOSE_HASH only for the last one.
 	 */
-	if (ctx->flags & BIT(FLAGS_SHA1))
+	if ((ctx->flags & FLAGS_MODE_MASK) == FLAGS_MODE_SHA1)
 		val |= SHA_REG_CTRL_ALGO;
 	if (!ctx->digcnt)
 		val |= SHA_REG_CTRL_ALGO_CONST;
@@ -286,6 +395,81 @@ static void omap_sham_write_ctrl(struct omap_sham_dev *dd, size_t length,
 	omap_sham_write_mask(dd, SHA_REG_CTRL, val, mask);
 }
 
+static void omap_sham_trigger_omap2(struct omap_sham_dev *dd, size_t length)
+{
+}
+
+static int omap_sham_poll_irq_omap2(struct omap_sham_dev *dd)
+{
+	return omap_sham_wait(dd, SHA_REG_CTRL, SHA_REG_CTRL_INPUT_READY);
+}
+
+static void omap_sham_write_n(struct omap_sham_dev *dd, u32 offset,
+				    u32 *value, int count)
+{
+	for (; count--; value++, offset += 4)
+		omap_sham_write(dd, offset, *value);
+}
+
+static void omap_sham_write_ctrl_omap4(struct omap_sham_dev *dd, size_t length,
+				 int final, int dma)
+{
+	struct omap_sham_reqctx *ctx = ahash_request_ctx(dd->req);
+	u32 val, mask;
+
+	/*
+	 * Setting ALGO_CONST only for the first iteration and
+	 * CLOSE_HASH only for the last one. Note that flags mode bits
+	 * correspond to algorithm encoding in mode register.
+	 */
+	val = (ctx->flags & FLAGS_MODE_MASK) >> (FLAGS_MODE_SHIFT - 1);
+	if (!ctx->digcnt) {
+		struct crypto_ahash *tfm = crypto_ahash_reqtfm(dd->req);
+		struct omap_sham_ctx *tctx = crypto_ahash_ctx(tfm);
+		struct omap_sham_hmac_ctx *bctx = tctx->base;
+
+		val |= SHA_REG_MODE_ALGO_CONSTANT;
+
+		if (ctx->flags & BIT(FLAGS_HMAC)) {
+			val |= SHA_REG_MODE_HMAC_KEY_PROC;
+			omap_sham_write_n(dd, SHA_REG_ODIGEST(0),
+					  (u32 *)bctx->ipad,
+					  SHA1_BLOCK_SIZE / sizeof(u32));
+			ctx->digcnt += SHA1_BLOCK_SIZE;
+		}
+	}
+
+	if (final) {
+		val |= SHA_REG_MODE_CLOSE_HASH;
+
+		if (ctx->flags & BIT(FLAGS_HMAC))
+			val |= SHA_REG_MODE_HMAC_OUTER_HASH;
+	}
+
+	mask = SHA_REG_MODE_ALGO_CONSTANT | SHA_REG_MODE_CLOSE_HASH |
+	       SHA_REG_MODE_ALGO_MASK | SHA_REG_MODE_HMAC_OUTER_HASH |
+	       SHA_REG_MODE_HMAC_KEY_PROC;
+
+	dev_dbg(dd->dev, "ctrl: %08x, flags: %08lx\n", val, ctx->flags);
+	omap_sham_write_mask(dd, SHA_REG_MODE, val, mask);
+	omap_sham_write(dd, SHA_REG_IRQENA, SHA_REG_IRQENA_OUTPUT_RDY);
+	omap_sham_write_mask(dd, SHA_REG_MASK(dd),
+			     SHA_REG_MASK_IT_EN |
+				     (dma ? SHA_REG_MASK_DMA_EN : 0),
+			     SHA_REG_MASK_IT_EN | SHA_REG_MASK_DMA_EN);
+}
+
+static void omap_sham_trigger_omap4(struct omap_sham_dev *dd, size_t length)
+{
+	omap_sham_write(dd, SHA_REG_LENGTH, length);
+}
+
+static int omap_sham_poll_irq_omap4(struct omap_sham_dev *dd)
+{
+	return omap_sham_wait(dd, SHA_REG_IRQSTATUS,
+			      SHA_REG_IRQSTATUS_INPUT_RDY);
+}
+
 static int omap_sham_xmit_cpu(struct omap_sham_dev *dd, const u8 *buf,
 			      size_t length, int final)
 {
@@ -296,12 +480,13 @@ static int omap_sham_xmit_cpu(struct omap_sham_dev *dd, const u8 *buf,
 	dev_dbg(dd->dev, "xmit_cpu: digcnt: %d, length: %d, final: %d\n",
 						ctx->digcnt, length, final);
 
-	omap_sham_write_ctrl(dd, length, final, 0);
+	dd->pdata->write_ctrl(dd, length, final, 0);
+	dd->pdata->trigger(dd, length);
 
 	/* should be non-zero before next lines to disable clocks later */
 	ctx->digcnt += length;
 
-	if (omap_sham_wait(dd, SHA_REG_CTRL, SHA_REG_CTRL_INPUT_READY))
+	if (dd->pdata->poll_irq(dd))
 		return -ETIMEDOUT;
 
 	if (final)
@@ -312,30 +497,73 @@ static int omap_sham_xmit_cpu(struct omap_sham_dev *dd, const u8 *buf,
 	len32 = DIV_ROUND_UP(length, sizeof(u32));
 
 	for (count = 0; count < len32; count++)
-		omap_sham_write(dd, SHA_REG_DIN(count), buffer[count]);
+		omap_sham_write(dd, SHA_REG_DIN(dd, count), buffer[count]);
 
 	return -EINPROGRESS;
 }
 
+static void omap_sham_dma_callback(void *param)
+{
+	struct omap_sham_dev *dd = param;
+
+	set_bit(FLAGS_DMA_READY, &dd->flags);
+	tasklet_schedule(&dd->done_task);
+}
+
 static int omap_sham_xmit_dma(struct omap_sham_dev *dd, dma_addr_t dma_addr,
-			      size_t length, int final)
+			      size_t length, int final, int is_sg)
 {
 	struct omap_sham_reqctx *ctx = ahash_request_ctx(dd->req);
-	int len32;
+	struct dma_async_tx_descriptor *tx;
+	struct dma_slave_config cfg;
+	int len32, ret;
 
 	dev_dbg(dd->dev, "xmit_dma: digcnt: %d, length: %d, final: %d\n",
 						ctx->digcnt, length, final);
 
-	len32 = DIV_ROUND_UP(length, sizeof(u32));
+	memset(&cfg, 0, sizeof(cfg));
+
+	cfg.dst_addr = dd->phys_base + SHA_REG_DIN(dd, 0);
+	cfg.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
+	cfg.dst_maxburst = DST_MAXBURST;
+
+	ret = dmaengine_slave_config(dd->dma_lch, &cfg);
+	if (ret) {
+		pr_err("omap-sham: can't configure dmaengine slave: %d\n", ret);
+		return ret;
+	}
+
+	len32 = DIV_ROUND_UP(length, DMA_MIN) * DMA_MIN;
+
+	if (is_sg) {
+		/*
+		 * The SG entry passed in may not have the 'length' member
+		 * set correctly so use a local SG entry (sgl) with the
+		 * proper value for 'length' instead.  If this is not done,
+		 * the dmaengine may try to DMA the incorrect amount of data.
+		 */
+		sg_init_table(&ctx->sgl, 1);
+		ctx->sgl.page_link = ctx->sg->page_link;
+		ctx->sgl.offset = ctx->sg->offset;
+		sg_dma_len(&ctx->sgl) = len32;
+		sg_dma_address(&ctx->sgl) = sg_dma_address(ctx->sg);
+
+		tx = dmaengine_prep_slave_sg(dd->dma_lch, &ctx->sgl, 1,
+			DMA_MEM_TO_DEV, DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
+	} else {
+		tx = dmaengine_prep_slave_single(dd->dma_lch, dma_addr, len32,
+			DMA_MEM_TO_DEV, DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
+	}
 
-	omap_set_dma_transfer_params(dd->dma_lch, OMAP_DMA_DATA_TYPE_S32, len32,
-			1, OMAP_DMA_SYNC_PACKET, dd->dma,
-				OMAP_DMA_DST_SYNC_PREFETCH);
+	if (!tx) {
+		dev_err(dd->dev, "prep_slave_sg/single() failed\n");
+		return -EINVAL;
+	}
 
-	omap_set_dma_src_params(dd->dma_lch, 0, OMAP_DMA_AMODE_POST_INC,
-				dma_addr, 0, 0);
+	tx->callback = omap_sham_dma_callback;
+	tx->callback_param = dd;
 
-	omap_sham_write_ctrl(dd, length, final, 1);
+	dd->pdata->write_ctrl(dd, length, final, 1);
 
 	ctx->digcnt += length;
 
@@ -344,7 +572,10 @@ static int omap_sham_xmit_dma(struct omap_sham_dev *dd, dma_addr_t dma_addr,
 
 	set_bit(FLAGS_DMA_ACTIVE, &dd->flags);
 
-	omap_start_dma(dd->dma_lch);
+	dmaengine_submit(tx);
+	dma_async_issue_pending(dd->dma_lch);
+
+	dd->pdata->trigger(dd, length);
 
 	return -EINPROGRESS;
 }
@@ -391,6 +622,8 @@ static int omap_sham_xmit_dma_map(struct omap_sham_dev *dd,
 					struct omap_sham_reqctx *ctx,
 					size_t length, int final)
 {
+	int ret;
+
 	ctx->dma_addr = dma_map_single(dd->dev, ctx->buffer, ctx->buflen,
 				       DMA_TO_DEVICE);
 	if (dma_mapping_error(dd->dev, ctx->dma_addr)) {
@@ -400,8 +633,12 @@ static int omap_sham_xmit_dma_map(struct omap_sham_dev *dd,
 
 	ctx->flags &= ~BIT(FLAGS_SG);
 
-	/* next call does not fail... so no unmap in the case of error */
-	return omap_sham_xmit_dma(dd, ctx->dma_addr, length, final);
+	ret = omap_sham_xmit_dma(dd, ctx->dma_addr, length, final, 0);
+	if (ret != -EINPROGRESS)
+		dma_unmap_single(dd->dev, ctx->dma_addr, ctx->buflen,
+				 DMA_TO_DEVICE);
+
+	return ret;
 }
 
 static int omap_sham_update_dma_slow(struct omap_sham_dev *dd)
@@ -436,6 +673,7 @@ static int omap_sham_update_dma_start(struct omap_sham_dev *dd)
 	struct omap_sham_reqctx *ctx = ahash_request_ctx(dd->req);
 	unsigned int length, final, tail;
 	struct scatterlist *sg;
+	int ret;
 
 	if (!ctx->total)
 		return 0;
@@ -443,6 +681,15 @@ static int omap_sham_update_dma_start(struct omap_sham_dev *dd)
 	if (ctx->bufcnt || ctx->offset)
 		return omap_sham_update_dma_slow(dd);
 
+	/*
+	 * Don't use the sg interface when the transfer size is less
+	 * than the number of elements in a DMA frame.  Otherwise,
+	 * the dmaengine infrastructure will calculate that it needs
+	 * to transfer 0 frames which ultimately fails.
+	 */
+	if (ctx->total < (DST_MAXBURST * sizeof(u32)))
+		return omap_sham_update_dma_slow(dd);
+
 	dev_dbg(dd->dev, "fast: digcnt: %d, bufcnt: %u, total: %u\n",
 			ctx->digcnt, ctx->bufcnt, ctx->total);
 
@@ -480,8 +727,11 @@ static int omap_sham_update_dma_start(struct omap_sham_dev *dd)
 
 	final = (ctx->flags & BIT(FLAGS_FINUP)) && !ctx->total;
 
-	/* next call does not fail... so no unmap in the case of error */
-	return omap_sham_xmit_dma(dd, sg_dma_address(ctx->sg), length, final);
+	ret = omap_sham_xmit_dma(dd, sg_dma_address(ctx->sg), length, final, 1);
+	if (ret != -EINPROGRESS)
+		dma_unmap_sg(dd->dev, ctx->sg, 1, DMA_TO_DEVICE);
+
+	return ret;
 }
 
 static int omap_sham_update_cpu(struct omap_sham_dev *dd)
@@ -500,7 +750,8 @@ static int omap_sham_update_dma_stop(struct omap_sham_dev *dd)
 {
 	struct omap_sham_reqctx *ctx = ahash_request_ctx(dd->req);
 
-	omap_stop_dma(dd->dma_lch);
+	dmaengine_terminate_all(dd->dma_lch);
+
 	if (ctx->flags & BIT(FLAGS_SG)) {
 		dma_unmap_sg(dd->dev, ctx->sg, 1, DMA_TO_DEVICE);
 		if (ctx->sg->length == ctx->offset) {
@@ -542,18 +793,33 @@ static int omap_sham_init(struct ahash_request *req)
 	dev_dbg(dd->dev, "init: digest size: %d\n",
 		crypto_ahash_digestsize(tfm));
 
-	if (crypto_ahash_digestsize(tfm) == SHA1_DIGEST_SIZE)
-		ctx->flags |= BIT(FLAGS_SHA1);
+	switch (crypto_ahash_digestsize(tfm)) {
+	case MD5_DIGEST_SIZE:
+		ctx->flags |= FLAGS_MODE_MD5;
+		break;
+	case SHA1_DIGEST_SIZE:
+		ctx->flags |= FLAGS_MODE_SHA1;
+		break;
+	case SHA224_DIGEST_SIZE:
+		ctx->flags |= FLAGS_MODE_SHA224;
+		break;
+	case SHA256_DIGEST_SIZE:
+		ctx->flags |= FLAGS_MODE_SHA256;
+		break;
+	}
 
 	ctx->bufcnt = 0;
 	ctx->digcnt = 0;
 	ctx->buflen = BUFLEN;
 
 	if (tctx->flags & BIT(FLAGS_HMAC)) {
-		struct omap_sham_hmac_ctx *bctx = tctx->base;
+		if (!test_bit(FLAGS_AUTO_XOR, &dd->flags)) {
+			struct omap_sham_hmac_ctx *bctx = tctx->base;
+
+			memcpy(ctx->buffer, bctx->ipad, SHA1_MD5_BLOCK_SIZE);
+			ctx->bufcnt = SHA1_MD5_BLOCK_SIZE;
+		}
 
-		memcpy(ctx->buffer, bctx->ipad, SHA1_MD5_BLOCK_SIZE);
-		ctx->bufcnt = SHA1_MD5_BLOCK_SIZE;
 		ctx->flags |= BIT(FLAGS_HMAC);
 	}
 
@@ -587,7 +853,7 @@ static int omap_sham_final_req(struct omap_sham_dev *dd)
 	struct omap_sham_reqctx *ctx = ahash_request_ctx(req);
 	int err = 0, use_dma = 1;
 
-	if (ctx->bufcnt <= 64)
+	if (ctx->bufcnt <= DMA_MIN)
 		/* faster to handle last block with cpu */
 		use_dma = 0;
 
@@ -630,7 +896,8 @@ static int omap_sham_finish(struct ahash_request *req)
 
 	if (ctx->digcnt) {
 		omap_sham_copy_ready_hash(req);
-		if (ctx->flags & BIT(FLAGS_HMAC))
+		if ((ctx->flags & BIT(FLAGS_HMAC)) &&
+				!test_bit(FLAGS_AUTO_XOR, &dd->flags))
 			err = omap_sham_finish_hmac(req);
 	}
 
@@ -645,7 +912,7 @@ static void omap_sham_finish_req(struct ahash_request *req, int err)
 	struct omap_sham_dev *dd = ctx->dd;
 
 	if (!err) {
-		omap_sham_copy_hash(req, 1);
+		dd->pdata->copy_hash(req, 1);
 		if (test_bit(FLAGS_FINAL, &dd->flags))
 			err = omap_sham_finish(req);
 	} else {
@@ -655,7 +922,8 @@ static void omap_sham_finish_req(struct ahash_request *req, int err)
 	/* atomic operation is not needed here */
 	dd->flags &= ~(BIT(FLAGS_BUSY) | BIT(FLAGS_FINAL) | BIT(FLAGS_CPU) |
 			BIT(FLAGS_DMA_READY) | BIT(FLAGS_OUTPUT_READY));
-	clk_disable(dd->iclk);
+
+	pm_runtime_put_sync(dd->dev);
 
 	if (req->base.complete)
 		req->base.complete(&req->base, err);
@@ -702,19 +970,9 @@ static int omap_sham_handle_queue(struct omap_sham_dev *dd,
 	if (err)
 		goto err1;
 
-	omap_set_dma_dest_params(dd->dma_lch, 0,
-			OMAP_DMA_AMODE_CONSTANT,
-			dd->phys_base + SHA_REG_DIN(0), 0, 16);
-
-	omap_set_dma_dest_burst_mode(dd->dma_lch,
-			OMAP_DMA_DATA_BURST_16);
-
-	omap_set_dma_src_burst_mode(dd->dma_lch,
-			OMAP_DMA_DATA_BURST_4);
-
 	if (ctx->digcnt)
 		/* request has changed - restore hash */
-		omap_sham_copy_hash(req, 0);
+		dd->pdata->copy_hash(req, 0);
 
 	if (ctx->op == OP_UPDATE) {
 		err = omap_sham_update_req(dd);
@@ -853,7 +1111,21 @@ static int omap_sham_setkey(struct crypto_ahash *tfm, const u8 *key,
 	struct omap_sham_hmac_ctx *bctx = tctx->base;
 	int bs = crypto_shash_blocksize(bctx->shash);
 	int ds = crypto_shash_digestsize(bctx->shash);
+	struct omap_sham_dev *dd = NULL, *tmp;
 	int err, i;
+
+	spin_lock_bh(&sham.lock);
+	if (!tctx->dd) {
+		list_for_each_entry(tmp, &sham.dev_list, list) {
+			dd = tmp;
+			break;
+		}
+		tctx->dd = dd;
+	} else {
+		dd = tctx->dd;
+	}
+	spin_unlock_bh(&sham.lock);
+
 	err = crypto_shash_setkey(tctx->fallback, key, keylen);
 	if (err)
 		return err;
@@ -870,11 +1142,14 @@ static int omap_sham_setkey(struct crypto_ahash *tfm, const u8 *key,
 	}
 
 	memset(bctx->ipad + keylen, 0, bs - keylen);
-	memcpy(bctx->opad, bctx->ipad, bs);
 
-	for (i = 0; i < bs; i++) {
-		bctx->ipad[i] ^= 0x36;
-		bctx->opad[i] ^= 0x5c;
+	if (!test_bit(FLAGS_AUTO_XOR, &dd->flags)) {
+		memcpy(bctx->opad, bctx->ipad, bs);
+
+		for (i = 0; i < bs; i++) {
+			bctx->ipad[i] ^= 0x36;
+			bctx->opad[i] ^= 0x5c;
+		}
 	}
 
 	return err;
@@ -924,6 +1199,16 @@ static int omap_sham_cra_sha1_init(struct crypto_tfm *tfm)
 	return omap_sham_cra_init_alg(tfm, "sha1");
 }
 
+static int omap_sham_cra_sha224_init(struct crypto_tfm *tfm)
+{
+	return omap_sham_cra_init_alg(tfm, "sha224");
+}
+
+static int omap_sham_cra_sha256_init(struct crypto_tfm *tfm)
+{
+	return omap_sham_cra_init_alg(tfm, "sha256");
+}
+
 static int omap_sham_cra_md5_init(struct crypto_tfm *tfm)
 {
 	return omap_sham_cra_init_alg(tfm, "md5");
@@ -942,7 +1227,7 @@ static void omap_sham_cra_exit(struct crypto_tfm *tfm)
 	}
 }
 
-static struct ahash_alg algs[] = {
+static struct ahash_alg algs_sha1_md5[] = {
 {
 	.init		= omap_sham_init,
 	.update		= omap_sham_update,
@@ -1041,6 +1326,102 @@ static struct ahash_alg algs[] = {
 }
 };
 
+/* OMAP4 has some algs in addition to what OMAP2 has */
+static struct ahash_alg algs_sha224_sha256[] = {
+{
+	.init		= omap_sham_init,
+	.update		= omap_sham_update,
+	.final		= omap_sham_final,
+	.finup		= omap_sham_finup,
+	.digest		= omap_sham_digest,
+	.halg.digestsize	= SHA224_DIGEST_SIZE,
+	.halg.base	= {
+		.cra_name		= "sha224",
+		.cra_driver_name	= "omap-sha224",
+		.cra_priority		= 100,
+		.cra_flags		= CRYPTO_ALG_TYPE_AHASH |
+						CRYPTO_ALG_ASYNC |
+						CRYPTO_ALG_NEED_FALLBACK,
+		.cra_blocksize		= SHA224_BLOCK_SIZE,
+		.cra_ctxsize		= sizeof(struct omap_sham_ctx),
+		.cra_alignmask		= 0,
+		.cra_module		= THIS_MODULE,
+		.cra_init		= omap_sham_cra_init,
+		.cra_exit		= omap_sham_cra_exit,
+	}
+},
+{
+	.init		= omap_sham_init,
+	.update		= omap_sham_update,
+	.final		= omap_sham_final,
+	.finup		= omap_sham_finup,
+	.digest		= omap_sham_digest,
+	.halg.digestsize	= SHA256_DIGEST_SIZE,
+	.halg.base	= {
+		.cra_name		= "sha256",
+		.cra_driver_name	= "omap-sha256",
+		.cra_priority		= 100,
+		.cra_flags		= CRYPTO_ALG_TYPE_AHASH |
+						CRYPTO_ALG_ASYNC |
+						CRYPTO_ALG_NEED_FALLBACK,
+		.cra_blocksize		= SHA256_BLOCK_SIZE,
+		.cra_ctxsize		= sizeof(struct omap_sham_ctx),
+		.cra_alignmask		= 0,
+		.cra_module		= THIS_MODULE,
+		.cra_init		= omap_sham_cra_init,
+		.cra_exit		= omap_sham_cra_exit,
+	}
+},
+{
+	.init		= omap_sham_init,
+	.update		= omap_sham_update,
+	.final		= omap_sham_final,
+	.finup		= omap_sham_finup,
+	.digest		= omap_sham_digest,
+	.setkey		= omap_sham_setkey,
+	.halg.digestsize	= SHA224_DIGEST_SIZE,
+	.halg.base	= {
+		.cra_name		= "hmac(sha224)",
+		.cra_driver_name	= "omap-hmac-sha224",
+		.cra_priority		= 100,
+		.cra_flags		= CRYPTO_ALG_TYPE_AHASH |
+						CRYPTO_ALG_ASYNC |
+						CRYPTO_ALG_NEED_FALLBACK,
+		.cra_blocksize		= SHA224_BLOCK_SIZE,
+		.cra_ctxsize		= sizeof(struct omap_sham_ctx) +
+					sizeof(struct omap_sham_hmac_ctx),
+		.cra_alignmask		= OMAP_ALIGN_MASK,
+		.cra_module		= THIS_MODULE,
+		.cra_init		= omap_sham_cra_sha224_init,
+		.cra_exit		= omap_sham_cra_exit,
+	}
+},
+{
+	.init		= omap_sham_init,
+	.update		= omap_sham_update,
+	.final		= omap_sham_final,
+	.finup		= omap_sham_finup,
+	.digest		= omap_sham_digest,
+	.setkey		= omap_sham_setkey,
+	.halg.digestsize	= SHA256_DIGEST_SIZE,
+	.halg.base	= {
+		.cra_name		= "hmac(sha256)",
+		.cra_driver_name	= "omap-hmac-sha256",
+		.cra_priority		= 100,
+		.cra_flags		= CRYPTO_ALG_TYPE_AHASH |
+						CRYPTO_ALG_ASYNC |
+						CRYPTO_ALG_NEED_FALLBACK,
+		.cra_blocksize		= SHA256_BLOCK_SIZE,
+		.cra_ctxsize		= sizeof(struct omap_sham_ctx) +
+					sizeof(struct omap_sham_hmac_ctx),
+		.cra_alignmask		= OMAP_ALIGN_MASK,
+		.cra_module		= THIS_MODULE,
+		.cra_init		= omap_sham_cra_sha256_init,
+		.cra_exit		= omap_sham_cra_exit,
+	}
+},
+};
+
 static void omap_sham_done_task(unsigned long data)
 {
 	struct omap_sham_dev *dd = (struct omap_sham_dev *)data;
@@ -1079,7 +1460,19 @@ finish:
 	omap_sham_finish_req(dd->req, err);
 }
 
-static irqreturn_t omap_sham_irq(int irq, void *dev_id)
+static irqreturn_t omap_sham_irq_common(struct omap_sham_dev *dd)
+{
+	if (!test_bit(FLAGS_BUSY, &dd->flags)) {
+		dev_warn(dd->dev, "Interrupt when no active requests.\n");
+	} else {
+		set_bit(FLAGS_OUTPUT_READY, &dd->flags);
+		tasklet_schedule(&dd->done_task);
+	}
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t omap_sham_irq_omap2(int irq, void *dev_id)
 {
 	struct omap_sham_dev *dd = dev_id;
 
@@ -1091,61 +1484,188 @@ static irqreturn_t omap_sham_irq(int irq, void *dev_id)
 				 SHA_REG_CTRL_OUTPUT_READY);
 	omap_sham_read(dd, SHA_REG_CTRL);
 
-	if (!test_bit(FLAGS_BUSY, &dd->flags)) {
-		dev_warn(dd->dev, "Interrupt when no active requests.\n");
-		return IRQ_HANDLED;
-	}
+	return omap_sham_irq_common(dd);
+}
 
-	set_bit(FLAGS_OUTPUT_READY, &dd->flags);
-	tasklet_schedule(&dd->done_task);
+static irqreturn_t omap_sham_irq_omap4(int irq, void *dev_id)
+{
+	struct omap_sham_dev *dd = dev_id;
 
-	return IRQ_HANDLED;
+	omap_sham_write_mask(dd, SHA_REG_MASK(dd), 0, SHA_REG_MASK_IT_EN);
+
+	return omap_sham_irq_common(dd);
 }
 
-static void omap_sham_dma_callback(int lch, u16 ch_status, void *data)
+static struct omap_sham_algs_info omap_sham_algs_info_omap2[] = {
+	{
+		.algs_list	= algs_sha1_md5,
+		.size		= ARRAY_SIZE(algs_sha1_md5),
+	},
+};
+
+static const struct omap_sham_pdata omap_sham_pdata_omap2 = {
+	.algs_info	= omap_sham_algs_info_omap2,
+	.algs_info_size	= ARRAY_SIZE(omap_sham_algs_info_omap2),
+	.flags		= BIT(FLAGS_BE32_SHA1),
+	.digest_size	= SHA1_DIGEST_SIZE,
+	.copy_hash	= omap_sham_copy_hash_omap2,
+	.write_ctrl	= omap_sham_write_ctrl_omap2,
+	.trigger	= omap_sham_trigger_omap2,
+	.poll_irq	= omap_sham_poll_irq_omap2,
+	.intr_hdlr	= omap_sham_irq_omap2,
+	.idigest_ofs	= 0x00,
+	.din_ofs	= 0x1c,
+	.digcnt_ofs	= 0x14,
+	.rev_ofs	= 0x5c,
+	.mask_ofs	= 0x60,
+	.sysstatus_ofs	= 0x64,
+	.major_mask	= 0xf0,
+	.major_shift	= 4,
+	.minor_mask	= 0x0f,
+	.minor_shift	= 0,
+};
+
+#ifdef CONFIG_OF
+static struct omap_sham_algs_info omap_sham_algs_info_omap4[] = {
+	{
+		.algs_list	= algs_sha1_md5,
+		.size		= ARRAY_SIZE(algs_sha1_md5),
+	},
+	{
+		.algs_list	= algs_sha224_sha256,
+		.size		= ARRAY_SIZE(algs_sha224_sha256),
+	},
+};
+
+static const struct omap_sham_pdata omap_sham_pdata_omap4 = {
+	.algs_info	= omap_sham_algs_info_omap4,
+	.algs_info_size	= ARRAY_SIZE(omap_sham_algs_info_omap4),
+	.flags		= BIT(FLAGS_AUTO_XOR),
+	.digest_size	= SHA256_DIGEST_SIZE,
+	.copy_hash	= omap_sham_copy_hash_omap4,
+	.write_ctrl	= omap_sham_write_ctrl_omap4,
+	.trigger	= omap_sham_trigger_omap4,
+	.poll_irq	= omap_sham_poll_irq_omap4,
+	.intr_hdlr	= omap_sham_irq_omap4,
+	.idigest_ofs	= 0x020,
+	.din_ofs	= 0x080,
+	.digcnt_ofs	= 0x040,
+	.rev_ofs	= 0x100,
+	.mask_ofs	= 0x110,
+	.sysstatus_ofs	= 0x114,
+	.major_mask	= 0x0700,
+	.major_shift	= 8,
+	.minor_mask	= 0x003f,
+	.minor_shift	= 0,
+};
+
+static const struct of_device_id omap_sham_of_match[] = {
+	{
+		.compatible	= "ti,omap2-sham",
+		.data		= &omap_sham_pdata_omap2,
+	},
+	{
+		.compatible	= "ti,omap4-sham",
+		.data		= &omap_sham_pdata_omap4,
+	},
+	{},
+};
+MODULE_DEVICE_TABLE(of, omap_sham_of_match);
+
+static int omap_sham_get_res_of(struct omap_sham_dev *dd,
+		struct device *dev, struct resource *res)
 {
-	struct omap_sham_dev *dd = data;
+	struct device_node *node = dev->of_node;
+	const struct of_device_id *match;
+	int err = 0;
 
-	if (ch_status != OMAP_DMA_BLOCK_IRQ) {
-		pr_err("omap-sham DMA error status: 0x%hx\n", ch_status);
-		dd->err = -EIO;
-		clear_bit(FLAGS_INIT, &dd->flags);/* request to re-initialize */
+	match = of_match_device(of_match_ptr(omap_sham_of_match), dev);
+	if (!match) {
+		dev_err(dev, "no compatible OF match\n");
+		err = -EINVAL;
+		goto err;
 	}
 
-	set_bit(FLAGS_DMA_READY, &dd->flags);
-	tasklet_schedule(&dd->done_task);
+	err = of_address_to_resource(node, 0, res);
+	if (err < 0) {
+		dev_err(dev, "can't translate OF node address\n");
+		err = -EINVAL;
+		goto err;
+	}
+
+	dd->irq = of_irq_to_resource(node, 0, NULL);
+	if (!dd->irq) {
+		dev_err(dev, "can't translate OF irq value\n");
+		err = -EINVAL;
+		goto err;
+	}
+
+	dd->dma = -1; /* Dummy value that's unused */
+	dd->pdata = match->data;
+
+err:
+	return err;
 }
+#else
+static const struct of_device_id omap_sham_of_match[] = {
+	{},
+};
 
-static int omap_sham_dma_init(struct omap_sham_dev *dd)
+static int omap_sham_get_res_of(struct omap_sham_dev *dd,
+		struct device *dev, struct resource *res)
 {
-	int err;
+	return -EINVAL;
+}
+#endif
 
-	dd->dma_lch = -1;
+static int omap_sham_get_res_pdev(struct omap_sham_dev *dd,
+		struct platform_device *pdev, struct resource *res)
+{
+	struct device *dev = &pdev->dev;
+	struct resource *r;
+	int err = 0;
 
-	err = omap_request_dma(dd->dma, dev_name(dd->dev),
-			omap_sham_dma_callback, dd, &dd->dma_lch);
-	if (err) {
-		dev_err(dd->dev, "Unable to request DMA channel\n");
-		return err;
+	/* Get the base address */
+	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!r) {
+		dev_err(dev, "no MEM resource info\n");
+		err = -ENODEV;
+		goto err;
 	}
+	memcpy(res, r, sizeof(*res));
 
-	return 0;
-}
+	/* Get the IRQ */
+	dd->irq = platform_get_irq(pdev, 0);
+	if (dd->irq < 0) {
+		dev_err(dev, "no IRQ resource info\n");
+		err = dd->irq;
+		goto err;
+	}
 
-static void omap_sham_dma_cleanup(struct omap_sham_dev *dd)
-{
-	if (dd->dma_lch >= 0) {
-		omap_free_dma(dd->dma_lch);
-		dd->dma_lch = -1;
+	/* Get the DMA */
+	r = platform_get_resource(pdev, IORESOURCE_DMA, 0);
+	if (!r) {
+		dev_err(dev, "no DMA resource info\n");
+		err = -ENODEV;
+		goto err;
 	}
+	dd->dma = r->start;
+
+	/* Only OMAP2/3 can be non-DT */
+	dd->pdata = &omap_sham_pdata_omap2;
+
+err:
+	return err;
 }
 
 static int omap_sham_probe(struct platform_device *pdev)
 {
 	struct omap_sham_dev *dd;
 	struct device *dev = &pdev->dev;
-	struct resource *res;
+	struct resource res;
+	dma_cap_mask_t mask;
 	int err, i, j;
+	u32 rev;
 
 	dd = kzalloc(sizeof(struct omap_sham_dev), GFP_KERNEL);
 	if (dd == NULL) {
@@ -1161,89 +1681,75 @@ static int omap_sham_probe(struct platform_device *pdev)
 	tasklet_init(&dd->done_task, omap_sham_done_task, (unsigned long)dd);
 	crypto_init_queue(&dd->queue, OMAP_SHAM_QUEUE_LENGTH);
 
-	dd->irq = -1;
-
-	/* Get the base address */
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(dev, "no MEM resource info\n");
-		err = -ENODEV;
-		goto res_err;
-	}
-	dd->phys_base = res->start;
-
-	/* Get the DMA */
-	res = platform_get_resource(pdev, IORESOURCE_DMA, 0);
-	if (!res) {
-		dev_err(dev, "no DMA resource info\n");
-		err = -ENODEV;
+	err = (dev->of_node) ? omap_sham_get_res_of(dd, dev, &res) :
+			       omap_sham_get_res_pdev(dd, pdev, &res);
+	if (err)
 		goto res_err;
-	}
-	dd->dma = res->start;
 
-	/* Get the IRQ */
-	dd->irq = platform_get_irq(pdev,  0);
-	if (dd->irq < 0) {
-		dev_err(dev, "no IRQ resource info\n");
-		err = dd->irq;
+	dd->io_base = devm_request_and_ioremap(dev, &res);
+	if (!dd->io_base) {
+		dev_err(dev, "can't ioremap\n");
+		err = -ENOMEM;
 		goto res_err;
 	}
+	dd->phys_base = res.start;
 
-	err = request_irq(dd->irq, omap_sham_irq,
-			IRQF_TRIGGER_LOW, dev_name(dev), dd);
+	err = request_irq(dd->irq, dd->pdata->intr_hdlr, IRQF_TRIGGER_LOW,
+			  dev_name(dev), dd);
 	if (err) {
 		dev_err(dev, "unable to request irq.\n");
 		goto res_err;
 	}
 
-	err = omap_sham_dma_init(dd);
-	if (err)
-		goto dma_err;
+	dma_cap_zero(mask);
+	dma_cap_set(DMA_SLAVE, mask);
 
-	/* Initializing the clock */
-	dd->iclk = clk_get(dev, "ick");
-	if (IS_ERR(dd->iclk)) {
-		dev_err(dev, "clock intialization failed.\n");
-		err = PTR_ERR(dd->iclk);
-		goto clk_err;
+	dd->dma_lch = dma_request_slave_channel_compat(mask, omap_dma_filter_fn,
+						       &dd->dma, dev, "rx");
+	if (!dd->dma_lch) {
+		dev_err(dev, "unable to obtain RX DMA engine channel %u\n",
+			dd->dma);
+		err = -ENXIO;
+		goto dma_err;
 	}
 
-	dd->io_base = ioremap(dd->phys_base, SZ_4K);
-	if (!dd->io_base) {
-		dev_err(dev, "can't ioremap\n");
-		err = -ENOMEM;
-		goto io_err;
-	}
+	dd->flags |= dd->pdata->flags;
+
+	pm_runtime_enable(dev);
+	pm_runtime_get_sync(dev);
+	rev = omap_sham_read(dd, SHA_REG_REV(dd));
+	pm_runtime_put_sync(&pdev->dev);
 
-	clk_enable(dd->iclk);
 	dev_info(dev, "hw accel on OMAP rev %u.%u\n",
-		(omap_sham_read(dd, SHA_REG_REV) & SHA_REG_REV_MAJOR) >> 4,
-		omap_sham_read(dd, SHA_REG_REV) & SHA_REG_REV_MINOR);
-	clk_disable(dd->iclk);
+		(rev & dd->pdata->major_mask) >> dd->pdata->major_shift,
+		(rev & dd->pdata->minor_mask) >> dd->pdata->minor_shift);
 
 	spin_lock(&sham.lock);
 	list_add_tail(&dd->list, &sham.dev_list);
 	spin_unlock(&sham.lock);
 
-	for (i = 0; i < ARRAY_SIZE(algs); i++) {
-		err = crypto_register_ahash(&algs[i]);
-		if (err)
-			goto err_algs;
+	for (i = 0; i < dd->pdata->algs_info_size; i++) {
+		for (j = 0; j < dd->pdata->algs_info[i].size; j++) {
+			err = crypto_register_ahash(
+					&dd->pdata->algs_info[i].algs_list[j]);
+			if (err)
+				goto err_algs;
+
+			dd->pdata->algs_info[i].registered++;
+		}
 	}
 
 	return 0;
 
 err_algs:
-	for (j = 0; j < i; j++)
-		crypto_unregister_ahash(&algs[j]);
-	iounmap(dd->io_base);
-io_err:
-	clk_put(dd->iclk);
-clk_err:
-	omap_sham_dma_cleanup(dd);
+	for (i = dd->pdata->algs_info_size - 1; i >= 0; i--)
+		for (j = dd->pdata->algs_info[i].registered - 1; j >= 0; j--)
+			crypto_unregister_ahash(
+					&dd->pdata->algs_info[i].algs_list[j]);
+	pm_runtime_disable(dev);
+	dma_release_channel(dd->dma_lch);
 dma_err:
-	if (dd->irq >= 0)
-		free_irq(dd->irq, dd);
+	free_irq(dd->irq, dd);
 res_err:
 	kfree(dd);
 	dd = NULL;
@@ -1256,7 +1762,7 @@ data_err:
 static int omap_sham_remove(struct platform_device *pdev)
 {
 	static struct omap_sham_dev *dd;
-	int i;
+	int i, j;
 
 	dd = platform_get_drvdata(pdev);
 	if (!dd)
@@ -1264,33 +1770,51 @@ static int omap_sham_remove(struct platform_device *pdev)
 	spin_lock(&sham.lock);
 	list_del(&dd->list);
 	spin_unlock(&sham.lock);
-	for (i = 0; i < ARRAY_SIZE(algs); i++)
-		crypto_unregister_ahash(&algs[i]);
+	for (i = dd->pdata->algs_info_size - 1; i >= 0; i--)
+		for (j = dd->pdata->algs_info[i].registered - 1; j >= 0; j--)
+			crypto_unregister_ahash(
+					&dd->pdata->algs_info[i].algs_list[j]);
 	tasklet_kill(&dd->done_task);
-	iounmap(dd->io_base);
-	clk_put(dd->iclk);
-	omap_sham_dma_cleanup(dd);
-	if (dd->irq >= 0)
-		free_irq(dd->irq, dd);
+	pm_runtime_disable(&pdev->dev);
+	dma_release_channel(dd->dma_lch);
+	free_irq(dd->irq, dd);
 	kfree(dd);
 	dd = NULL;
 
 	return 0;
 }
 
+#ifdef CONFIG_PM_SLEEP
+static int omap_sham_suspend(struct device *dev)
+{
+	pm_runtime_put_sync(dev);
+	return 0;
+}
+
+static int omap_sham_resume(struct device *dev)
+{
+	pm_runtime_get_sync(dev);
+	return 0;
+}
+#endif
+
+static const struct dev_pm_ops omap_sham_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(omap_sham_suspend, omap_sham_resume)
+};
+
 static struct platform_driver omap_sham_driver = {
 	.probe	= omap_sham_probe,
 	.remove	= omap_sham_remove,
 	.driver	= {
 		.name	= "omap-sham",
 		.owner	= THIS_MODULE,
+		.pm	= &omap_sham_pm_ops,
+		.of_match_table	= omap_sham_of_match,
 	},
 };
 
 static int __init omap_sham_mod_init(void)
 {
-	pr_info("loading %s driver\n", "omap-sham");
-
 	return platform_driver_register(&omap_sham_driver);
 }