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, 97 insertions, 0 deletions

diff --git a/drivers/crypto/fsl/jr.h b/drivers/crypto/fsl/jr.h
new file mode 100644
index 00000000000..cce2c589ce0
--- /dev/null
+++ b/drivers/crypto/fsl/jr.h
@@ -0,0 +1,97 @@
+/*
+ * Copyright 2008-2014 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ *
+ */
+
+#ifndef __JR_H
+#define __JR_H
+
+#include <linux/compiler.h>
+
+#define JR_SIZE 4
+/* Timeout currently defined as 90 sec */
+#define CONFIG_SEC_DEQ_TIMEOUT	90000000U
+
+#define DEFAULT_JR_ID		0
+#define DEFAULT_JR_LIODN	0
+#define DEFAULT_IRQ		0	/* Interrupts not to be configured */
+
+#define MCFGR_SWRST       ((uint32_t)(1)<<31) /* Software Reset */
+#define MCFGR_DMA_RST     ((uint32_t)(1)<<28) /* DMA Reset */
+#define MCFGR_PS_SHIFT          16
+#define JR_INTMASK	  0x00000001
+#define JRCR_RESET                  0x01
+#define JRINT_ERR_HALT_INPROGRESS   0x4
+#define JRINT_ERR_HALT_MASK         0xc
+#define JRNSLIODN_SHIFT		16
+#define JRNSLIODN_MASK		0x0fff0000
+#define JRSLIODN_SHIFT		0
+#define JRSLIODN_MASK		0x00000fff
+
+#define JQ_DEQ_ERR		-1
+#define JQ_DEQ_TO_ERR		-2
+#define JQ_ENQ_ERR		-3
+
+struct op_ring {
+	dma_addr_t desc;
+	uint32_t status;
+} __packed;
+
+struct jr_info {
+	void (*callback)(dma_addr_t desc, uint32_t status, void *arg);
+	dma_addr_t desc_phys_addr;
+	uint32_t desc_addr;
+	uint32_t desc_len;
+	uint32_t op_done;
+	void *arg;
+};
+
+struct jobring {
+	int jq_id;
+	int irq;
+	int liodn;
+	/* Head is the index where software would enq the descriptor in
+	 * the i/p ring
+	 */
+	int head;
+	/* Tail index would be used by s/w ehile enqueuing to determine if
+	 * there is any space left in the s/w maintained i/p rings
+	 */
+	/* Also in case of deq tail will be incremented only in case of
+	 * in-order job completion
+	 */
+	int tail;
+	/* Read index of the output ring. It may not match with tail in case
+	 * of out of order completetion
+	 */
+	int read_idx;
+	/* Write index to input ring. Would be always equal to head */
+	int write_idx;
+	/* Size of the rings. */
+	int size;
+	/* The ip and output rings have to be accessed by SEC. So the
+	 * pointers will ahve to point to the housekeeping region provided
+	 * by SEC
+	 */
+	/*Circular  Ring of i/p descriptors */
+	dma_addr_t *input_ring;
+	/* Circular Ring of o/p descriptors */
+	/* Circula Ring containing info regarding descriptors in i/p
+	 * and o/p ring
+	 */
+	/* This ring can be on the stack */
+	struct jr_info info[JR_SIZE];
+	struct op_ring *output_ring;
+};
+
+struct result {
+	int done;
+	uint32_t status;
+};
+
+void caam_jr_strstatus(u32 status);
+int run_descriptor_jr(uint32_t *desc);
+
+#endif