fsl_sec: Add hardware accelerated SHA256 and SHA1

SHA-256 and SHA-1 accelerated using SEC hardware in Freescale SoC's
The driver for SEC (CAAM) IP is based on linux drivers/crypto/caam.
The platforms needto add the MACRO CONFIG_FSL_CAAM inorder to
enable initialization of this hardware IP.

Signed-off-by: Ruchika Gupta <ruchika.gupta@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>

1 files changed, 258 insertions, 0 deletions

diff --git a/drivers/crypto/fsl/error.c b/drivers/crypto/fsl/error.c
new file mode 100644
index 0000000..28cdcdd
--- /dev/null
+++ b/drivers/crypto/fsl/error.c
@@ -0,0 +1,258 @@
+/*
+ * CAAM Error Reporting
+ *
+ * Copyright 2009-2014 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ *
+ * Derived from error.c file in linux drivers/crypto/caam
+ */
+
+#include <common.h>
+#include <malloc.h>
+#include "desc.h"
+#include "jr.h"
+
+#define CAAM_ERROR_STR_MAX 302
+
+#define JRSTA_SSRC_SHIFT            28
+#define JRSTA_CCBERR_CHAID_MASK     0x00f0
+#define JRSTA_CCBERR_CHAID_SHIFT    4
+#define JRSTA_CCBERR_ERRID_MASK     0x000
+#define JRSTA_CCBERR_CHAID_RNG      (0x05 << JRSTA_CCBERR_CHAID_SHIFT)
+
+#define JRSTA_DECOERR_JUMP          0x08000000
+#define JRSTA_DECOERR_INDEX_SHIFT   8
+#define JRSTA_DECOERR_INDEX_MASK    0xff00
+#define JRSTA_DECOERR_ERROR_MASK    0x00ff
+
+
+static const struct {
+	u8 value;
+	const char *error_text;
+} desc_error_list[] = {
+	{ 0x00, "No error." },
+	{ 0x01, "SGT Length Error. The descriptor is trying to read" \
+		" more data than is contained in the SGT table." },
+	{ 0x02, "SGT Null Entry Error." },
+	{ 0x03, "Job Ring Control Error. Bad value in Job Ring Control reg." },
+	{ 0x04, "Invalid Descriptor Command." },
+	{ 0x05, "Reserved." },
+	{ 0x06, "Invalid KEY Command" },
+	{ 0x07, "Invalid LOAD Command" },
+	{ 0x08, "Invalid STORE Command" },
+	{ 0x09, "Invalid OPERATION Command" },
+	{ 0x0A, "Invalid FIFO LOAD Command" },
+	{ 0x0B, "Invalid FIFO STORE Command" },
+	{ 0x0C, "Invalid MOVE/MOVE_LEN Command" },
+	{ 0x0D, "Invalid JUMP Command" },
+	{ 0x0E, "Invalid MATH Command" },
+	{ 0x0F, "Invalid SIGNATURE Command" },
+	{ 0x10, "Invalid Sequence Command" },
+	{ 0x11, "Skip data type invalid. The type must be 0xE or 0xF."},
+	{ 0x12, "Shared Descriptor Header Error" },
+	{ 0x13, "Header Error. Invalid length or parity, or other problems." },
+	{ 0x14, "Burster Error. Burster has gotten to an illegal state" },
+	{ 0x15, "Context Register Length Error" },
+	{ 0x16, "DMA Error" },
+	{ 0x17, "Reserved." },
+	{ 0x1A, "Job failed due to JR reset" },
+	{ 0x1B, "Job failed due to Fail Mode" },
+	{ 0x1C, "DECO Watchdog timer timeout error" },
+	{ 0x1D, "DECO tried to copy a key from another DECO but" \
+		" the other DECO's Key Registers were locked" },
+	{ 0x1E, "DECO attempted to copy data from a DECO" \
+		"that had an unmasked Descriptor error" },
+	{ 0x1F, "LIODN error" },
+	{ 0x20, "DECO has completed a reset initiated via the DRR register" },
+	{ 0x21, "Nonce error" },
+	{ 0x22, "Meta data is too large (> 511 bytes) for TLS decap" },
+	{ 0x23, "Read Input Frame error" },
+	{ 0x24, "JDKEK, TDKEK or TDSK not loaded error" },
+	{ 0x80, "DNR (do not run) error" },
+	{ 0x81, "undefined protocol command" },
+	{ 0x82, "invalid setting in PDB" },
+	{ 0x83, "Anti-replay LATE error" },
+	{ 0x84, "Anti-replay REPLAY error" },
+	{ 0x85, "Sequence number overflow" },
+	{ 0x86, "Sigver invalid signature" },
+	{ 0x87, "DSA Sign Illegal test descriptor" },
+	{ 0x88, "Protocol Format Error" },
+	{ 0x89, "Protocol Size Error" },
+	{ 0xC1, "Blob Command error: Undefined mode" },
+	{ 0xC2, "Blob Command error: Secure Memory Blob mode error" },
+	{ 0xC4, "Blob Command error: Black Blob key or input size error" },
+	{ 0xC5, "Blob Command error: Invalid key destination" },
+	{ 0xC8, "Blob Command error: Trusted/Secure mode error" },
+	{ 0xF0, "IPsec TTL or hop limit field is 0, or was decremented to 0" },
+	{ 0xF1, "3GPP HFN matches or exceeds the Threshold" },
+};
+
+static const char * const cha_id_list[] = {
+	"",
+	"AES",
+	"DES",
+	"ARC4",
+	"MDHA",
+	"RNG",
+	"SNOW f8",
+	"Kasumi f8/9",
+	"PKHA",
+	"CRCA",
+	"SNOW f9",
+	"ZUCE",
+	"ZUCA",
+};
+
+static const char * const err_id_list[] = {
+	"No error.",
+	"Mode error.",
+	"Data size error.",
+	"Key size error.",
+	"PKHA A memory size error.",
+	"PKHA B memory size error.",
+	"Data arrived out of sequence error.",
+	"PKHA divide-by-zero error.",
+	"PKHA modulus even error.",
+	"DES key parity error.",
+	"ICV check failed.",
+	"Hardware error.",
+	"Unsupported CCM AAD size.",
+	"Class 1 CHA is not reset",
+	"Invalid CHA combination was selected",
+	"Invalid CHA selected.",
+};
+
+static const char * const rng_err_id_list[] = {
+	"",
+	"",
+	"",
+	"Instantiate",
+	"Not instantiated",
+	"Test instantiate",
+	"Prediction resistance",
+	"Prediction resistance and test request",
+	"Uninstantiate",
+	"Secure key generation",
+};
+
+static void report_ccb_status(const u32 status,
+			      const char *error)
+{
+	u8 cha_id = (status & JRSTA_CCBERR_CHAID_MASK) >>
+		    JRSTA_CCBERR_CHAID_SHIFT;
+	u8 err_id = status & JRSTA_CCBERR_ERRID_MASK;
+	u8 idx = (status & JRSTA_DECOERR_INDEX_MASK) >>
+		  JRSTA_DECOERR_INDEX_SHIFT;
+	char *idx_str;
+	const char *cha_str = "unidentified cha_id value 0x";
+	char cha_err_code[3] = { 0 };
+	const char *err_str = "unidentified err_id value 0x";
+	char err_err_code[3] = { 0 };
+
+	if (status & JRSTA_DECOERR_JUMP)
+		idx_str = "jump tgt desc idx";
+	else
+		idx_str = "desc idx";
+
+	if (cha_id < ARRAY_SIZE(cha_id_list))
+		cha_str = cha_id_list[cha_id];
+	else
+		snprintf(cha_err_code, sizeof(cha_err_code), "%02x", cha_id);
+
+	if ((cha_id << JRSTA_CCBERR_CHAID_SHIFT) == JRSTA_CCBERR_CHAID_RNG &&
+	    err_id < ARRAY_SIZE(rng_err_id_list) &&
+	    strlen(rng_err_id_list[err_id])) {
+		/* RNG-only error */
+		err_str = rng_err_id_list[err_id];
+	} else if (err_id < ARRAY_SIZE(err_id_list)) {
+		err_str = err_id_list[err_id];
+	} else {
+		snprintf(err_err_code, sizeof(err_err_code), "%02x", err_id);
+	}
+
+	debug("%08x: %s: %s %d: %s%s: %s%s\n",
+	       status, error, idx_str, idx,
+		cha_str, cha_err_code,
+		err_str, err_err_code);
+}
+
+static void report_jump_status(const u32 status,
+			       const char *error)
+{
+	debug("%08x: %s: %s() not implemented\n",
+	       status, error, __func__);
+}
+
+static void report_deco_status(const u32 status,
+			       const char *error)
+{
+	u8 err_id = status & JRSTA_DECOERR_ERROR_MASK;
+	u8 idx = (status & JRSTA_DECOERR_INDEX_MASK) >>
+		  JRSTA_DECOERR_INDEX_SHIFT;
+	char *idx_str;
+	const char *err_str = "unidentified error value 0x";
+	char err_err_code[3] = { 0 };
+	int i;
+
+	if (status & JRSTA_DECOERR_JUMP)
+		idx_str = "jump tgt desc idx";
+	else
+		idx_str = "desc idx";
+
+	for (i = 0; i < ARRAY_SIZE(desc_error_list); i++)
+		if (desc_error_list[i].value == err_id)
+			break;
+
+	if (i != ARRAY_SIZE(desc_error_list) && desc_error_list[i].error_text)
+		err_str = desc_error_list[i].error_text;
+	else
+		snprintf(err_err_code, sizeof(err_err_code), "%02x", err_id);
+
+	debug("%08x: %s: %s %d: %s%s\n",
+	       status, error, idx_str, idx, err_str, err_err_code);
+}
+
+static void report_jr_status(const u32 status,
+			     const char *error)
+{
+	debug("%08x: %s: %s() not implemented\n",
+	       status, error, __func__);
+}
+
+static void report_cond_code_status(const u32 status,
+				    const char *error)
+{
+	debug("%08x: %s: %s() not implemented\n",
+	       status, error, __func__);
+}
+
+void caam_jr_strstatus(u32 status)
+{
+	static const struct stat_src {
+		void (*report_ssed)(const u32 status,
+				    const char *error);
+		const char *error;
+	} status_src[] = {
+		{ NULL, "No error" },
+		{ NULL, NULL },
+		{ report_ccb_status, "CCB" },
+		{ report_jump_status, "Jump" },
+		{ report_deco_status, "DECO" },
+		{ NULL, NULL },
+		{ report_jr_status, "Job Ring" },
+		{ report_cond_code_status, "Condition Code" },
+	};
+	u32 ssrc = status >> JRSTA_SSRC_SHIFT;
+	const char *error = status_src[ssrc].error;
+
+	/*
+	 * If there is no further error handling function, just
+	 * print the error code, error string and exit. Otherwise
+	 * call the handler function.
+	 */
+	if (!status_src[ssrc].report_ssed)
+		debug("%08x: %s:\n", status, status_src[ssrc].error);
+	else
+		status_src[ssrc].report_ssed(status, error);
+}