*
* 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
#include <crypto/hash.h>
#include <crypto/internal/hash.h>
-#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 DST_MAXBURST 16
#define DMA_MIN (DST_MAXBURST * sizeof(u32))
-#define SHA_REG_DIGCNT 0x14
+#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)
#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_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 */
#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_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;
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;
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 {
#define OMAP_SHAM_QUEUE_LENGTH 1
+struct omap_sham_pdata {
+ 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;
unsigned long flags;
struct crypto_queue queue;
struct ahash_request *req;
+
+ const struct omap_sham_pdata *pdata;
};
struct omap_sham_drv {
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)
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;
+ 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)
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;
}
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;
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)
{
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)
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;
}
memset(&cfg, 0, sizeof(cfg));
- cfg.dst_addr = dd->phys_base + SHA_REG_DIN(0);
+ 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;
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;
dmaengine_submit(tx);
dma_async_issue_pending(dd->dma_lch);
+ dd->pdata->trigger(dd, length);
+
return -EINPROGRESS;
}
ctx->flags &= ~BIT(FLAGS_SG);
ret = omap_sham_xmit_dma(dd, ctx->dma_addr, length, final, 0);
- if (ret)
+ if (ret != -EINPROGRESS)
dma_unmap_single(dd->dev, ctx->dma_addr, ctx->buflen,
DMA_TO_DEVICE);
final = (ctx->flags & BIT(FLAGS_FINUP)) && !ctx->total;
ret = omap_sham_xmit_dma(dd, sg_dma_address(ctx->sg), length, final, 1);
- if (ret)
+ if (ret != -EINPROGRESS)
dma_unmap_sg(dd->dev, ctx->sg, 1, DMA_TO_DEVICE);
return ret;
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;
+ }
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);
}
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);
}
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 {
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);
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;
}
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;
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;
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 const struct omap_sham_pdata omap_sham_pdata_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 const struct omap_sham_pdata omap_sham_pdata_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,
},
{},
};
}
dd->dma = -1; /* Dummy value that's unused */
+ dd->pdata = match->data;
err:
return err;
}
dd->dma = r->start;
+ /* Only OMAP2/3 can be non-DT */
+ dd->pdata = &omap_sham_pdata_omap2;
+
err:
return err;
}
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) {
}
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;
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);
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);
-
- pm_runtime_put_sync(&pdev->dev);
+ (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);
for (j = 0; j < i; j++)
crypto_unregister_ahash(&algs[j]);
pm_runtime_disable(dev);
-io_err:
dma_release_channel(dd->dma_lch);
dma_err:
free_irq(dd->irq, dd);
projects / deliverable / linux.git / commitdiff
