crypto: rockchip - add hash support for crypto engine in rk3288

Add md5 sha1 sha256 support for crypto engine in rk3288.

Signed-off-by: Zain Wang <zain.wang@rock-chips.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

6 files changed, 499 insertions, 14 deletions

diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig
index fed3ffbec4c1..477fffdb4f49 100644
--- a/drivers/crypto/Kconfig
+++ b/drivers/crypto/Kconfig
@@ -508,6 +508,10 @@ config CRYPTO_DEV_ROCKCHIP
         depends on OF && ARCH_ROCKCHIP
         select CRYPTO_AES
         select CRYPTO_DES
+        select CRYPTO_MD5
+        select CRYPTO_SHA1
+        select CRYPTO_SHA256
+        select CRYPTO_HASH
         select CRYPTO_BLKCIPHER
 
         help
diff --git a/drivers/crypto/rockchip/Makefile b/drivers/crypto/rockchip/Makefile
index 7051c6c715f3..30f91297b4b6 100644
--- a/drivers/crypto/rockchip/Makefile
+++ b/drivers/crypto/rockchip/Makefile
@@ -1,3 +1,4 @@
 obj-$(CONFIG_CRYPTO_DEV_ROCKCHIP) += rk_crypto.o
 rk_crypto-objs := rk3288_crypto.o \
                   rk3288_crypto_ablkcipher.o \
+                  rk3288_crypto_ahash.o
diff --git a/drivers/crypto/rockchip/rk3288_crypto.c b/drivers/crypto/rockchip/rk3288_crypto.c
index da9c73dce4af..af508258d2ea 100644
--- a/drivers/crypto/rockchip/rk3288_crypto.c
+++ b/drivers/crypto/rockchip/rk3288_crypto.c
@@ -208,6 +208,8 @@ static void rk_crypto_tasklet_cb(unsigned long data)
 
         if (crypto_tfm_alg_type(async_req->tfm) == CRYPTO_ALG_TYPE_ABLKCIPHER)
                 dev->ablk_req = ablkcipher_request_cast(async_req);
+        else
+                dev->ahash_req = ahash_request_cast(async_req);
         err = dev->start(dev);
         if (err)
                 dev->complete(dev, err);
@@ -220,6 +222,9 @@ static struct rk_crypto_tmp *rk_cipher_algs[] = {
         &rk_cbc_des_alg,
         &rk_ecb_des3_ede_alg,
         &rk_cbc_des3_ede_alg,
+        &rk_ahash_sha1,
+        &rk_ahash_sha256,
+        &rk_ahash_md5,
 };
 
 static int rk_crypto_register(struct rk_crypto_info *crypto_info)
@@ -229,15 +234,24 @@ static int rk_crypto_register(struct rk_crypto_info *crypto_info)
 
         for (i = 0; i < ARRAY_SIZE(rk_cipher_algs); i++) {
                 rk_cipher_algs[i]->dev = crypto_info;
-                err = crypto_register_alg(&rk_cipher_algs[i]->alg);
+                if (rk_cipher_algs[i]->type == ALG_TYPE_CIPHER)
+                        err = crypto_register_alg(
+                                        &rk_cipher_algs[i]->alg.crypto);
+                else
+                        err = crypto_register_ahash(
+                                        &rk_cipher_algs[i]->alg.hash);
                 if (err)
                         goto err_cipher_algs;
         }
         return 0;
 
 err_cipher_algs:
-        for (k = 0; k < i; k++)
-                crypto_unregister_alg(&rk_cipher_algs[k]->alg);
+        for (k = 0; k < i; k++) {
+                if (rk_cipher_algs[i]->type == ALG_TYPE_CIPHER)
+                        crypto_unregister_alg(&rk_cipher_algs[k]->alg.crypto);
+                else
+                        crypto_unregister_ahash(&rk_cipher_algs[i]->alg.hash);
+        }
         return err;
 }
 
@@ -245,8 +259,12 @@ static void rk_crypto_unregister(void)
 {
         unsigned int i;
 
-        for (i = 0; i < ARRAY_SIZE(rk_cipher_algs); i++)
-                crypto_unregister_alg(&rk_cipher_algs[i]->alg);
+        for (i = 0; i < ARRAY_SIZE(rk_cipher_algs); i++) {
+                if (rk_cipher_algs[i]->type == ALG_TYPE_CIPHER)
+                        crypto_unregister_alg(&rk_cipher_algs[i]->alg.crypto);
+                else
+                        crypto_unregister_ahash(&rk_cipher_algs[i]->alg.hash);
+        }
 }
 
 static void rk_crypto_action(void *data)
diff --git a/drivers/crypto/rockchip/rk3288_crypto.h b/drivers/crypto/rockchip/rk3288_crypto.h
index e499c2c6c903..d7b71fea320b 100644
--- a/drivers/crypto/rockchip/rk3288_crypto.h
+++ b/drivers/crypto/rockchip/rk3288_crypto.h
@@ -6,6 +6,10 @@
 #include <crypto/algapi.h>
 #include <linux/interrupt.h>
 #include <linux/delay.h>
+#include <crypto/internal/hash.h>
+
+#include <crypto/md5.h>
+#include <crypto/sha.h>
 
 #define _SBF(v, f)                      ((v) << (f))
 
@@ -149,6 +153,28 @@
 #define RK_CRYPTO_TDES_KEY3_0           0x0130
 #define RK_CRYPTO_TDES_KEY3_1           0x0134
 
+/* HASH */
+#define RK_CRYPTO_HASH_CTRL             0x0180
+#define RK_CRYPTO_HASH_SWAP_DO          BIT(3)
+#define RK_CRYPTO_HASH_SWAP_DI          BIT(2)
+#define RK_CRYPTO_HASH_SHA1             _SBF(0x00, 0)
+#define RK_CRYPTO_HASH_MD5              _SBF(0x01, 0)
+#define RK_CRYPTO_HASH_SHA256           _SBF(0x02, 0)
+#define RK_CRYPTO_HASH_PRNG             _SBF(0x03, 0)
+
+#define RK_CRYPTO_HASH_STS              0x0184
+#define RK_CRYPTO_HASH_DONE             BIT(0)
+
+#define RK_CRYPTO_HASH_MSG_LEN          0x0188
+#define RK_CRYPTO_HASH_DOUT_0           0x018c
+#define RK_CRYPTO_HASH_DOUT_1           0x0190
+#define RK_CRYPTO_HASH_DOUT_2           0x0194
+#define RK_CRYPTO_HASH_DOUT_3           0x0198
+#define RK_CRYPTO_HASH_DOUT_4           0x019c
+#define RK_CRYPTO_HASH_DOUT_5           0x01a0
+#define RK_CRYPTO_HASH_DOUT_6           0x01a4
+#define RK_CRYPTO_HASH_DOUT_7           0x01a8
+
 #define CRYPTO_READ(dev, offset)                  \
                 readl_relaxed(((dev)->reg + (offset)))
 #define CRYPTO_WRITE(dev, offset, val)    \
@@ -166,6 +192,7 @@ struct rk_crypto_info {
         struct crypto_queue             queue;
         struct tasklet_struct           crypto_tasklet;
         struct ablkcipher_request       *ablk_req;
+        struct ahash_request            *ahash_req;
         /* device lock */
         spinlock_t                      lock;
 
@@ -195,15 +222,36 @@ struct rk_crypto_info {
         void (*unload_data)(struct rk_crypto_info *dev);
 };
 
+/* the private variable of hash */
+struct rk_ahash_ctx {
+        struct rk_crypto_info           *dev;
+        /* for fallback */
+        struct crypto_ahash             *fallback_tfm;
+};
+
+/* the privete variable of hash for fallback */
+struct rk_ahash_rctx {
+        struct ahash_request            fallback_req;
+};
+
 /* the private variable of cipher */
 struct rk_cipher_ctx {
         struct rk_crypto_info           *dev;
         unsigned int                    keylen;
 };
 
+enum alg_type {
+        ALG_TYPE_HASH,
+        ALG_TYPE_CIPHER,
+};
+
 struct rk_crypto_tmp {
-        struct rk_crypto_info *dev;
-        struct crypto_alg alg;
+        struct rk_crypto_info           *dev;
+        union {
+                struct crypto_alg       crypto;
+                struct ahash_alg        hash;
+        } alg;
+        enum alg_type                   type;
 };
 
 extern struct rk_crypto_tmp rk_ecb_aes_alg;
@@ -213,4 +261,8 @@ extern struct rk_crypto_tmp rk_cbc_des_alg;
 extern struct rk_crypto_tmp rk_ecb_des3_ede_alg;
 extern struct rk_crypto_tmp rk_cbc_des3_ede_alg;
 
+extern struct rk_crypto_tmp rk_ahash_sha1;
+extern struct rk_crypto_tmp rk_ahash_sha256;
+extern struct rk_crypto_tmp rk_ahash_md5;
+
 #endif
diff --git a/drivers/crypto/rockchip/rk3288_crypto_ablkcipher.c b/drivers/crypto/rockchip/rk3288_crypto_ablkcipher.c
index d98b681f6c06..b5a3afe222e4 100644
--- a/drivers/crypto/rockchip/rk3288_crypto_ablkcipher.c
+++ b/drivers/crypto/rockchip/rk3288_crypto_ablkcipher.c
@@ -336,7 +336,7 @@ static int rk_ablk_cra_init(struct crypto_tfm *tfm)
         struct crypto_alg *alg = tfm->__crt_alg;
         struct rk_crypto_tmp *algt;
 
-        algt = container_of(alg, struct rk_crypto_tmp, alg);
+        algt = container_of(alg, struct rk_crypto_tmp, alg.crypto);
 
         ctx->dev = algt->dev;
         ctx->dev->align_size = crypto_tfm_alg_alignmask(tfm) + 1;
@@ -357,7 +357,8 @@ static void rk_ablk_cra_exit(struct crypto_tfm *tfm)
 }
 
 struct rk_crypto_tmp rk_ecb_aes_alg = {
-        .alg = {
+        .type = ALG_TYPE_CIPHER,
+        .alg.crypto = {
                 .cra_name               = "ecb(aes)",
                 .cra_driver_name        = "ecb-aes-rk",
                 .cra_priority           = 300,
@@ -381,7 +382,8 @@ struct rk_crypto_tmp rk_ecb_aes_alg = {
 };
 
 struct rk_crypto_tmp rk_cbc_aes_alg = {
-        .alg = {
+        .type = ALG_TYPE_CIPHER,
+        .alg.crypto = {
                 .cra_name               = "cbc(aes)",
                 .cra_driver_name        = "cbc-aes-rk",
                 .cra_priority           = 300,
@@ -406,7 +408,8 @@ struct rk_crypto_tmp rk_cbc_aes_alg = {
 };
 
 struct rk_crypto_tmp rk_ecb_des_alg = {
-        .alg = {
+        .type = ALG_TYPE_CIPHER,
+        .alg.crypto = {
                 .cra_name               = "ecb(des)",
                 .cra_driver_name        = "ecb-des-rk",
                 .cra_priority           = 300,
@@ -430,7 +433,8 @@ struct rk_crypto_tmp rk_ecb_des_alg = {
 };
 
 struct rk_crypto_tmp rk_cbc_des_alg = {
-        .alg = {
+        .type = ALG_TYPE_CIPHER,
+        .alg.crypto = {
                 .cra_name               = "cbc(des)",
                 .cra_driver_name        = "cbc-des-rk",
                 .cra_priority           = 300,
@@ -455,7 +459,8 @@ struct rk_crypto_tmp rk_cbc_des_alg = {
 };
 
 struct rk_crypto_tmp rk_ecb_des3_ede_alg = {
-        .alg = {
+        .type = ALG_TYPE_CIPHER,
+        .alg.crypto = {
                 .cra_name               = "ecb(des3_ede)",
                 .cra_driver_name        = "ecb-des3-ede-rk",
                 .cra_priority           = 300,
@@ -480,7 +485,8 @@ struct rk_crypto_tmp rk_ecb_des3_ede_alg = {
 };
 
 struct rk_crypto_tmp rk_cbc_des3_ede_alg = {
-        .alg = {
+        .type = ALG_TYPE_CIPHER,
+        .alg.crypto = {
                 .cra_name               = "cbc(des3_ede)",
                 .cra_driver_name        = "cbc-des3-ede-rk",
                 .cra_priority           = 300,
diff --git a/drivers/crypto/rockchip/rk3288_crypto_ahash.c b/drivers/crypto/rockchip/rk3288_crypto_ahash.c
new file mode 100644
index 000000000000..718588219f75
--- /dev/null
+++ b/drivers/crypto/rockchip/rk3288_crypto_ahash.c
@@ -0,0 +1,404 @@
+/*
+ * Crypto acceleration support for Rockchip RK3288
+ *
+ * Copyright (c) 2015, Fuzhou Rockchip Electronics Co., Ltd
+ *
+ * Author: Zain Wang <zain.wang@rock-chips.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * Some ideas are from marvell/cesa.c and s5p-sss.c driver.
+ */
+#include "rk3288_crypto.h"
+
+/*
+ * IC can not process zero message hash,
+ * so we put the fixed hash out when met zero message.
+ */
+
+static int zero_message_process(struct ahash_request *req)
+{
+        struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+        int rk_digest_size = crypto_ahash_digestsize(tfm);
+
+        switch (rk_digest_size) {
+        case SHA1_DIGEST_SIZE:
+                memcpy(req->result, sha1_zero_message_hash, rk_digest_size);
+                break;
+        case SHA256_DIGEST_SIZE:
+                memcpy(req->result, sha256_zero_message_hash, rk_digest_size);
+                break;
+        case MD5_DIGEST_SIZE:
+                memcpy(req->result, md5_zero_message_hash, rk_digest_size);
+                break;
+        default:
+                return -EINVAL;
+        }
+
+        return 0;
+}
+
+static void rk_ahash_crypto_complete(struct rk_crypto_info *dev, int err)
+{
+        if (dev->ahash_req->base.complete)
+                dev->ahash_req->base.complete(&dev->ahash_req->base, err);
+}
+
+static void rk_ahash_reg_init(struct rk_crypto_info *dev)
+{
+        int reg_status = 0;
+
+        reg_status = CRYPTO_READ(dev, RK_CRYPTO_CTRL) |
+                     RK_CRYPTO_HASH_FLUSH | _SBF(0xffff, 16);
+        CRYPTO_WRITE(dev, RK_CRYPTO_CTRL, reg_status);
+
+        reg_status = CRYPTO_READ(dev, RK_CRYPTO_CTRL);
+        reg_status &= (~RK_CRYPTO_HASH_FLUSH);
+        reg_status |= _SBF(0xffff, 16);
+        CRYPTO_WRITE(dev, RK_CRYPTO_CTRL, reg_status);
+
+        memset_io(dev->reg + RK_CRYPTO_HASH_DOUT_0, 0, 32);
+
+        CRYPTO_WRITE(dev, RK_CRYPTO_INTENA, RK_CRYPTO_HRDMA_ERR_ENA |
+                                            RK_CRYPTO_HRDMA_DONE_ENA);
+
+        CRYPTO_WRITE(dev, RK_CRYPTO_INTSTS, RK_CRYPTO_HRDMA_ERR_INT |
+                                            RK_CRYPTO_HRDMA_DONE_INT);
+
+        CRYPTO_WRITE(dev, RK_CRYPTO_HASH_CTRL, dev->mode |
+                                               RK_CRYPTO_HASH_SWAP_DO);
+
+        CRYPTO_WRITE(dev, RK_CRYPTO_CONF, RK_CRYPTO_BYTESWAP_HRFIFO |
+                                          RK_CRYPTO_BYTESWAP_BRFIFO |
+                                          RK_CRYPTO_BYTESWAP_BTFIFO);
+
+        CRYPTO_WRITE(dev, RK_CRYPTO_HASH_MSG_LEN, dev->total);
+}
+
+static int rk_ahash_init(struct ahash_request *req)
+{
+        struct rk_ahash_rctx *rctx = ahash_request_ctx(req);
+        struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+        struct rk_ahash_ctx *ctx = crypto_ahash_ctx(tfm);
+
+        ahash_request_set_tfm(&rctx->fallback_req, ctx->fallback_tfm);
+        rctx->fallback_req.base.flags = req->base.flags &
+                                        CRYPTO_TFM_REQ_MAY_SLEEP;
+
+        return crypto_ahash_init(&rctx->fallback_req);
+}
+
+static int rk_ahash_update(struct ahash_request *req)
+{
+        struct rk_ahash_rctx *rctx = ahash_request_ctx(req);
+        struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+        struct rk_ahash_ctx *ctx = crypto_ahash_ctx(tfm);
+
+        ahash_request_set_tfm(&rctx->fallback_req, ctx->fallback_tfm);
+        rctx->fallback_req.base.flags = req->base.flags &
+                                        CRYPTO_TFM_REQ_MAY_SLEEP;
+        rctx->fallback_req.nbytes = req->nbytes;
+        rctx->fallback_req.src = req->src;
+
+        return crypto_ahash_update(&rctx->fallback_req);
+}
+
+static int rk_ahash_final(struct ahash_request *req)
+{
+        struct rk_ahash_rctx *rctx = ahash_request_ctx(req);
+        struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+        struct rk_ahash_ctx *ctx = crypto_ahash_ctx(tfm);
+
+        ahash_request_set_tfm(&rctx->fallback_req, ctx->fallback_tfm);
+        rctx->fallback_req.base.flags = req->base.flags &
+                                        CRYPTO_TFM_REQ_MAY_SLEEP;
+        rctx->fallback_req.result = req->result;
+
+        return crypto_ahash_final(&rctx->fallback_req);
+}
+
+static int rk_ahash_finup(struct ahash_request *req)
+{
+        struct rk_ahash_rctx *rctx = ahash_request_ctx(req);
+        struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+        struct rk_ahash_ctx *ctx = crypto_ahash_ctx(tfm);
+
+        ahash_request_set_tfm(&rctx->fallback_req, ctx->fallback_tfm);
+        rctx->fallback_req.base.flags = req->base.flags &
+                                        CRYPTO_TFM_REQ_MAY_SLEEP;
+
+        rctx->fallback_req.nbytes = req->nbytes;
+        rctx->fallback_req.src = req->src;
+        rctx->fallback_req.result = req->result;
+
+        return crypto_ahash_finup(&rctx->fallback_req);
+}
+
+static int rk_ahash_import(struct ahash_request *req, const void *in)
+{
+        struct rk_ahash_rctx *rctx = ahash_request_ctx(req);
+        struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+        struct rk_ahash_ctx *ctx = crypto_ahash_ctx(tfm);
+
+        ahash_request_set_tfm(&rctx->fallback_req, ctx->fallback_tfm);
+        rctx->fallback_req.base.flags = req->base.flags &
+                                        CRYPTO_TFM_REQ_MAY_SLEEP;
+
+        return crypto_ahash_import(&rctx->fallback_req, in);
+}
+
+static int rk_ahash_export(struct ahash_request *req, void *out)
+{
+        struct rk_ahash_rctx *rctx = ahash_request_ctx(req);
+        struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+        struct rk_ahash_ctx *ctx = crypto_ahash_ctx(tfm);
+
+        ahash_request_set_tfm(&rctx->fallback_req, ctx->fallback_tfm);
+        rctx->fallback_req.base.flags = req->base.flags &
+                                        CRYPTO_TFM_REQ_MAY_SLEEP;
+
+        return crypto_ahash_export(&rctx->fallback_req, out);
+}
+
+static int rk_ahash_digest(struct ahash_request *req)
+{
+        struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+        struct rk_ahash_ctx *tctx = crypto_tfm_ctx(req->base.tfm);
+        struct rk_crypto_info *dev = NULL;
+        unsigned long flags;
+        int ret;
+
+        if (!req->nbytes)
+                return zero_message_process(req);
+
+        dev = tctx->dev;
+        dev->total = req->nbytes;
+        dev->left_bytes = req->nbytes;
+        dev->aligned = 0;
+        dev->mode = 0;
+        dev->align_size = 4;
+        dev->sg_dst = NULL;
+        dev->sg_src = req->src;
+        dev->first = req->src;
+        dev->nents = sg_nents(req->src);
+
+        switch (crypto_ahash_digestsize(tfm)) {
+        case SHA1_DIGEST_SIZE:
+                dev->mode = RK_CRYPTO_HASH_SHA1;
+                break;
+        case SHA256_DIGEST_SIZE:
+                dev->mode = RK_CRYPTO_HASH_SHA256;
+                break;
+        case MD5_DIGEST_SIZE:
+                dev->mode = RK_CRYPTO_HASH_MD5;
+                break;
+        default:
+                return -EINVAL;
+        }
+
+        rk_ahash_reg_init(dev);
+
+        spin_lock_irqsave(&dev->lock, flags);
+        ret = crypto_enqueue_request(&dev->queue, &req->base);
+        spin_unlock_irqrestore(&dev->lock, flags);
+
+        tasklet_schedule(&dev->crypto_tasklet);
+
+        /*
+         * it will take some time to process date after last dma transmission.
+         *
+         * waiting time is relative with the last date len,
+         * so cannot set a fixed time here.
+         * 10-50 makes system not call here frequently wasting
+         * efficiency, and make it response quickly when dma
+         * complete.
+         */
+        while (!CRYPTO_READ(dev, RK_CRYPTO_HASH_STS))
+                usleep_range(10, 50);
+
+        memcpy_fromio(req->result, dev->reg + RK_CRYPTO_HASH_DOUT_0,
+                      crypto_ahash_digestsize(tfm));
+
+        return 0;
+}
+
+static void crypto_ahash_dma_start(struct rk_crypto_info *dev)
+{
+        CRYPTO_WRITE(dev, RK_CRYPTO_HRDMAS, dev->addr_in);
+        CRYPTO_WRITE(dev, RK_CRYPTO_HRDMAL, (dev->count + 3) / 4);
+        CRYPTO_WRITE(dev, RK_CRYPTO_CTRL, RK_CRYPTO_HASH_START |
+                                          (RK_CRYPTO_HASH_START << 16));
+}
+
+static int rk_ahash_set_data_start(struct rk_crypto_info *dev)
+{
+        int err;
+
+        err = dev->load_data(dev, dev->sg_src, NULL);
+        if (!err)
+                crypto_ahash_dma_start(dev);
+        return err;
+}
+
+static int rk_ahash_start(struct rk_crypto_info *dev)
+{
+        return rk_ahash_set_data_start(dev);
+}
+
+static int rk_ahash_crypto_rx(struct rk_crypto_info *dev)
+{
+        int err = 0;
+
+        dev->unload_data(dev);
+        if (dev->left_bytes) {
+                if (dev->aligned) {
+                        if (sg_is_last(dev->sg_src)) {
+                                dev_warn(dev->dev, "[%s:%d], Lack of data\n",
+                                         __func__, __LINE__);
+                                err = -ENOMEM;
+                                goto out_rx;
+                        }
+                        dev->sg_src = sg_next(dev->sg_src);
+                }
+                err = rk_ahash_set_data_start(dev);
+        } else {
+                dev->complete(dev, 0);
+        }
+
+out_rx:
+        return err;
+}
+
+static int rk_cra_hash_init(struct crypto_tfm *tfm)
+{
+        struct rk_ahash_ctx *tctx = crypto_tfm_ctx(tfm);
+        struct rk_crypto_tmp *algt;
+        struct ahash_alg *alg = __crypto_ahash_alg(tfm->__crt_alg);
+
+        const char *alg_name = crypto_tfm_alg_name(tfm);
+
+        algt = container_of(alg, struct rk_crypto_tmp, alg.hash);
+
+        tctx->dev = algt->dev;
+        tctx->dev->addr_vir = (void *)__get_free_page(GFP_KERNEL);
+        if (!tctx->dev->addr_vir) {
+                dev_err(tctx->dev->dev, "failed to kmalloc for addr_vir\n");
+                return -ENOMEM;
+        }
+        tctx->dev->start = rk_ahash_start;
+        tctx->dev->update = rk_ahash_crypto_rx;
+        tctx->dev->complete = rk_ahash_crypto_complete;
+
+        /* for fallback */
+        tctx->fallback_tfm = crypto_alloc_ahash(alg_name, 0,
+                                               CRYPTO_ALG_NEED_FALLBACK);
+        if (IS_ERR(tctx->fallback_tfm)) {
+                dev_err(tctx->dev->dev, "Could not load fallback driver.\n");
+                return PTR_ERR(tctx->fallback_tfm);
+        }
+        crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm),
+                                 sizeof(struct rk_ahash_rctx) +
+                                 crypto_ahash_reqsize(tctx->fallback_tfm));
+
+        return tctx->dev->enable_clk(tctx->dev);
+}
+
+static void rk_cra_hash_exit(struct crypto_tfm *tfm)
+{
+        struct rk_ahash_ctx *tctx = crypto_tfm_ctx(tfm);
+
+        free_page((unsigned long)tctx->dev->addr_vir);
+        return tctx->dev->disable_clk(tctx->dev);
+}
+
+struct rk_crypto_tmp rk_ahash_sha1 = {
+        .type = ALG_TYPE_HASH,
+        .alg.hash = {
+                .init = rk_ahash_init,
+                .update = rk_ahash_update,
+                .final = rk_ahash_final,
+                .finup = rk_ahash_finup,
+                .export = rk_ahash_export,
+                .import = rk_ahash_import,
+                .digest = rk_ahash_digest,
+                .halg = {
+                         .digestsize = SHA1_DIGEST_SIZE,
+                         .statesize = sizeof(struct sha1_state),
+                         .base = {
+                                  .cra_name = "sha1",
+                                  .cra_driver_name = "rk-sha1",
+                                  .cra_priority = 300,
+                                  .cra_flags = CRYPTO_ALG_ASYNC |
+                                               CRYPTO_ALG_NEED_FALLBACK,
+                                  .cra_blocksize = SHA1_BLOCK_SIZE,
+                                  .cra_ctxsize = sizeof(struct rk_ahash_ctx),
+                                  .cra_alignmask = 3,
+                                  .cra_init = rk_cra_hash_init,
+                                  .cra_exit = rk_cra_hash_exit,
+                                  .cra_module = THIS_MODULE,
+                                  }
+                         }
+        }
+};
+
+struct rk_crypto_tmp rk_ahash_sha256 = {
+        .type = ALG_TYPE_HASH,
+        .alg.hash = {
+                .init = rk_ahash_init,
+                .update = rk_ahash_update,
+                .final = rk_ahash_final,
+                .finup = rk_ahash_finup,
+                .export = rk_ahash_export,
+                .import = rk_ahash_import,
+                .digest = rk_ahash_digest,
+                .halg = {
+                         .digestsize = SHA256_DIGEST_SIZE,
+                         .statesize = sizeof(struct sha256_state),
+                         .base = {
+                                  .cra_name = "sha256",
+                                  .cra_driver_name = "rk-sha256",
+                                  .cra_priority = 300,
+                                  .cra_flags = CRYPTO_ALG_ASYNC |
+                                               CRYPTO_ALG_NEED_FALLBACK,
+                                  .cra_blocksize = SHA256_BLOCK_SIZE,
+                                  .cra_ctxsize = sizeof(struct rk_ahash_ctx),
+                                  .cra_alignmask = 3,
+                                  .cra_init = rk_cra_hash_init,
+                                  .cra_exit = rk_cra_hash_exit,
+                                  .cra_module = THIS_MODULE,
+                                  }
+                         }
+        }
+};
+
+struct rk_crypto_tmp rk_ahash_md5 = {
+        .type = ALG_TYPE_HASH,
+        .alg.hash = {
+                .init = rk_ahash_init,
+                .update = rk_ahash_update,
+                .final = rk_ahash_final,
+                .finup = rk_ahash_finup,
+                .export = rk_ahash_export,
+                .import = rk_ahash_import,
+                .digest = rk_ahash_digest,
+                .halg = {
+                         .digestsize = MD5_DIGEST_SIZE,
+                         .statesize = sizeof(struct md5_state),
+                         .base = {
+                                  .cra_name = "md5",
+                                  .cra_driver_name = "rk-md5",
+                                  .cra_priority = 300,
+                                  .cra_flags = CRYPTO_ALG_ASYNC |
+                                               CRYPTO_ALG_NEED_FALLBACK,
+                                  .cra_blocksize = SHA1_BLOCK_SIZE,
+                                  .cra_ctxsize = sizeof(struct rk_ahash_ctx),
+                                  .cra_alignmask = 3,
+                                  .cra_init = rk_cra_hash_init,
+                                  .cra_exit = rk_cra_hash_exit,
+                                  .cra_module = THIS_MODULE,
+                                  }
+                        }
+        }
+};