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+/******************************************************************************
+**
+** FILE NAME : ifxmips_deu_ar9.c
+** PROJECT : IFX UEIP
+** MODULES : DEU Module for AR9
+**
+** DATE : September 8, 2009
+** AUTHOR : Mohammad Firdaus
+** DESCRIPTION : Data Encryption Unit Driver
+** COPYRIGHT : Copyright (c) 2009
+** Infineon Technologies AG
+** Am Campeon 1-12, 85579 Neubiberg, Germany
+**
+** This program is free software; you can redistribute it and/or modify
+** it under the terms of the GNU General Public License as published by
+** the Free Software Foundation; either version 2 of the License, or
+** (at your option) any later version.
+**
+** HISTORY
+** $Date $Author $Comment
+** 08,Sept 2009 Mohammad Firdaus Initial UEIP release
+*******************************************************************************/
+/*!
+ \defgroup IFX_DEU IFX_DEU_DRIVERS
+ \ingroup API
+ \brief ifx deu driver module
+*/
+
+/*!
+ \file ifxmips_deu_ar9.c
+ \brief ifx deu board specific driver file for ar9
+*/
+
+/*!
+ \defgroup BOARD_SPECIFIC_FUNCTIONS IFX_BOARD_SPECIFIC_FUNCTIONS
+ \ingroup IFX_DEU
+ \brief board specific functions
+*/
+
+/* Project header files */
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <asm/io.h> //dma_cache_inv
+
+#include "ifxmips_deu_dma.h"
+#include "ifxmips_deu_ar9.h"
+
+/* Function decleration */
+void aes_chip_init (void);
+void des_chip_init (void);
+int deu_dma_init (void);
+u32 endian_swap(u32 input);
+u32* memory_alignment(const u8 *arg, u32 *buff_alloc, int in_out, int nbytes);
+void aes_dma_memory_copy(u32 *outcopy, u32 *out_dma, u8 *out_arg, int nbytes);
+void des_dma_memory_copy(u32 *outcopy, u32 *out_dma, u8 *out_arg, int nbytes);
+void deu_dma_priv_init(void);
+void __exit ifxdeu_fini_dma(void);
+
+#define DES_3DES_START IFX_DES_CON
+#define AES_START IFX_AES_CON
+#define CLC_START IFX_DEU_CLK
+
+/* Variables */
+
+u8 *g_dma_page_ptr = NULL;
+u8 *g_dma_block = NULL;
+u8 *g_dma_block2 = NULL;
+
+deu_drv_priv_t deu_dma_priv;
+
+
+/*! \fn u32 endian_swap(u32 input)
+ * \ingroup BOARD_SPECIFIC_FUNCTIONS
+ * \brief Swap data given to the function
+ * \param input Data input to be swapped
+ * \return either the swapped data or the input data depending on whether it is in DMA mode or FPI mode
+*/
+u32 endian_swap(u32 input)
+{
+ return input;
+}
+
+/*! \fn u32 input_swap(u32 input)
+ * \ingroup BOARD_SPECIFIC_FUNCTIONS
+ * \brief Not used
+ * \return input
+*/
+
+u32 input_swap(u32 input)
+{
+ return input;
+}
+
+/*! \fn void aes_chip_init (void)
+ * \ingroup BOARD_SPECIFIC_FUNCTIONS
+ * \brief initialize AES hardware
+*/
+
+void aes_chip_init (void)
+{
+ volatile struct aes_t *aes = (struct aes_t *) AES_START;
+
+ aes->controlr.SM = 1;
+ aes->controlr.ARS = 1;
+
+}
+
+/*! \fn void des_chip_init (void)
+ * \ingroup BOARD_SPECIFIC_FUNCTIONS
+ * \brief initialize DES hardware
+*/
+
+void des_chip_init (void)
+{
+ volatile struct des_t *des = (struct des_t *) DES_3DES_START;
+
+ // start crypto engine with write to ILR
+ des->controlr.SM = 1;
+ asm("sync");
+ des->controlr.ARS = 1;
+
+}
+
+/*! \fn void chip_version(void)
+ * \ingroup BOARD_SPECIFIC_FUNCTIONS
+ * \brief not used!
+*/
+
+void chip_version(void)
+{
+ return;
+}
+