ENGR00117755 MX28: DCP

Driver for DCP operations: AES, SHA1, and SHA256

Signed-off-by: Anish Trivedi <anish@freescale.com>
Signed-off-by: Alejandro Gonzalez <alex.gonzalez@digi.com>

3 files changed, 86 insertions, 29 deletions

diff --git a/arch/arm/configs/imx28evk_defconfig b/arch/arm/configs/imx28evk_defconfig
index 54e4ca945f4b..83dd3de8426c 100644
--- a/arch/arm/configs/imx28evk_defconfig
+++ b/arch/arm/configs/imx28evk_defconfig
@@ -1478,9 +1478,8 @@ CONFIG_CRYPTO=y
 # CONFIG_CRYPTO_FIPS is not set
 CONFIG_CRYPTO_ALGAPI=y
 CONFIG_CRYPTO_ALGAPI2=y
-CONFIG_CRYPTO_AEAD=m
 CONFIG_CRYPTO_AEAD2=y
-CONFIG_CRYPTO_BLKCIPHER=m
+CONFIG_CRYPTO_BLKCIPHER=y
 CONFIG_CRYPTO_BLKCIPHER2=y
 CONFIG_CRYPTO_HASH=y
 CONFIG_CRYPTO_HASH2=y
@@ -1489,12 +1488,12 @@ CONFIG_CRYPTO_PCOMP=y
 CONFIG_CRYPTO_MANAGER=y
 CONFIG_CRYPTO_MANAGER2=y
 # CONFIG_CRYPTO_GF128MUL is not set
-CONFIG_CRYPTO_NULL=m
+# CONFIG_CRYPTO_NULL is not set
 CONFIG_CRYPTO_WORKQUEUE=y
 # CONFIG_CRYPTO_CRYPTD is not set
-CONFIG_CRYPTO_AUTHENC=m
-# CONFIG_CRYPTO_TEST is not set
-# CONFIG_CRYPTO_CRYPTODEV is not set
+# CONFIG_CRYPTO_AUTHENC is not set
+CONFIG_CRYPTO_TEST=m
+CONFIG_CRYPTO_CRYPTODEV=y
 
 #
 # Authenticated Encryption with Associated Data
@@ -1506,10 +1505,10 @@ CONFIG_CRYPTO_AUTHENC=m
 #
 # Block modes
 #
-CONFIG_CRYPTO_CBC=m
+CONFIG_CRYPTO_CBC=y
 # CONFIG_CRYPTO_CTR is not set
 # CONFIG_CRYPTO_CTS is not set
-# CONFIG_CRYPTO_ECB is not set
+CONFIG_CRYPTO_ECB=y
 # CONFIG_CRYPTO_LRW is not set
 # CONFIG_CRYPTO_PCBC is not set
 # CONFIG_CRYPTO_XTS is not set
@@ -1523,53 +1522,53 @@ CONFIG_CRYPTO_HMAC=y
 #
 # Digest
 #
-CONFIG_CRYPTO_CRC32C=m
-CONFIG_CRYPTO_MD4=m
-CONFIG_CRYPTO_MD5=m
-CONFIG_CRYPTO_MICHAEL_MIC=m
+# CONFIG_CRYPTO_CRC32C is not set
+# CONFIG_CRYPTO_MD4 is not set
+CONFIG_CRYPTO_MD5=y
+# CONFIG_CRYPTO_MICHAEL_MIC is not set
 # CONFIG_CRYPTO_RMD128 is not set
 # CONFIG_CRYPTO_RMD160 is not set
 # CONFIG_CRYPTO_RMD256 is not set
 # CONFIG_CRYPTO_RMD320 is not set
-CONFIG_CRYPTO_SHA1=y
+CONFIG_CRYPTO_SHA1=m
 CONFIG_CRYPTO_SHA256=m
-CONFIG_CRYPTO_SHA512=m
+# CONFIG_CRYPTO_SHA512 is not set
 # CONFIG_CRYPTO_TGR192 is not set
-CONFIG_CRYPTO_WP512=m
+# CONFIG_CRYPTO_WP512 is not set
 
 #
 # Ciphers
 #
-CONFIG_CRYPTO_AES=m
+CONFIG_CRYPTO_AES=y
 # CONFIG_CRYPTO_ANUBIS is not set
-CONFIG_CRYPTO_ARC4=m
-CONFIG_CRYPTO_BLOWFISH=m
+# CONFIG_CRYPTO_ARC4 is not set
+# CONFIG_CRYPTO_BLOWFISH is not set
 # CONFIG_CRYPTO_CAMELLIA is not set
-CONFIG_CRYPTO_CAST5=m
-CONFIG_CRYPTO_CAST6=m
-CONFIG_CRYPTO_DES=m
+# CONFIG_CRYPTO_CAST5 is not set
+# CONFIG_CRYPTO_CAST6 is not set
+CONFIG_CRYPTO_DES=y
 # CONFIG_CRYPTO_FCRYPT is not set
-CONFIG_CRYPTO_KHAZAD=m
+# CONFIG_CRYPTO_KHAZAD is not set
 # CONFIG_CRYPTO_SALSA20 is not set
 # CONFIG_CRYPTO_SEED is not set
-CONFIG_CRYPTO_SERPENT=m
-CONFIG_CRYPTO_TEA=m
-CONFIG_CRYPTO_TWOFISH=m
-CONFIG_CRYPTO_TWOFISH_COMMON=m
+# CONFIG_CRYPTO_SERPENT is not set
+# CONFIG_CRYPTO_TEA is not set
+# CONFIG_CRYPTO_TWOFISH is not set
 
 #
 # Compression
 #
-CONFIG_CRYPTO_DEFLATE=m
+CONFIG_CRYPTO_DEFLATE=y
 # CONFIG_CRYPTO_ZLIB is not set
-# CONFIG_CRYPTO_LZO is not set
+CONFIG_CRYPTO_LZO=y
 
 #
 # Random Number Generation
 #
 # CONFIG_CRYPTO_ANSI_CPRNG is not set
 CONFIG_CRYPTO_HW=y
-CONFIG_BINARY_PRINTF=y
+CONFIG_CRYPTO_DEV_DCP=y
+# CONFIG_BINARY_PRINTF is not set
 
 #
 # Library routines
diff --git a/arch/arm/mach-mx28/device.c b/arch/arm/mach-mx28/device.c
index 9b2e98c3e656..e618bc5b0503 100644
--- a/arch/arm/mach-mx28/device.c
+++ b/arch/arm/mach-mx28/device.c
@@ -855,6 +855,43 @@ static inline void mx28_init_flexcan(void)
 }
 #endif
 
+#if defined(CONFIG_CRYPTO_DEV_DCP)
+
+static struct resource dcp_resources[] = {
+
+	{
+		.flags = IORESOURCE_MEM,
+		.start = DCP_PHYS_ADDR,
+		.end   = DCP_PHYS_ADDR + 0x2000 - 1,
+	}, {
+		.flags = IORESOURCE_IRQ,
+		.start = IRQ_DCP_VMI,
+		.end = IRQ_DCP_VMI,
+	}, {
+		.flags = IORESOURCE_IRQ,
+		.start = IRQ_DCP,
+		.end = IRQ_DCP,
+	},
+};
+
+static void __init mx28_init_dcp(void)
+{
+	struct platform_device *pdev;
+
+	pdev = mxs_get_device("dcp", 0);
+	if (pdev == NULL || IS_ERR(pdev))
+		return;
+	pdev->resource = dcp_resources;
+	pdev->num_resources = ARRAY_SIZE(dcp_resources);
+	mxs_add_device(pdev, 3);
+}
+#else
+static void __init mx28_init_dcp(void)
+{
+	;
+}
+#endif
+
 int __init mx28_device_init(void)
 {
 	mx28_init_dma();
@@ -870,6 +907,7 @@ int __init mx28_device_init(void)
 	mx28_init_kbd();
 	mx28_init_ts();
 	mx28_init_lcdif();
+	mx28_init_dcp();
 	return 0;
 }
 
diff --git a/arch/arm/plat-mxs/device.c b/arch/arm/plat-mxs/device.c
index 9a31b0a609cd..a87e6d2904d5 100644
--- a/arch/arm/plat-mxs/device.c
+++ b/arch/arm/plat-mxs/device.c
@@ -338,6 +338,18 @@ static struct platform_device mxs_flexcan[] = {
 };
 #endif
 
+#if defined(CONFIG_CRYPTO_DEV_DCP)
+static struct platform_device mxs_dcp = {
+	.name = "dcp",
+	.id = 0,
+	.dev	= {
+		.release = mxs_nop_release,
+		.dma_mask	= &common_dmamask,
+		.coherent_dma_mask = DMA_BIT_MASK(32),
+	},
+};
+#endif
+
 static struct mxs_dev_lookup dev_lookup[] = {
 #if defined(CONFIG_SERIAL_MXS_DUART) || \
 	defined(CONFIG_SERIAL_MXS_DUART_MODULE)
@@ -460,6 +472,14 @@ static struct mxs_dev_lookup dev_lookup[] = {
 	.pdev = mxs_flexcan,
 	},
 #endif
+
+#if defined(CONFIG_CRYPTO_DEV_DCP)
+	{
+	.name = "dcp",
+	.size = 1,
+	.pdev = &mxs_dcp,
+	},
+#endif
 };
 
 struct platform_device *mxs_get_device(char *name, int id)