1 files changed, 168 insertions, 0 deletions
diff --git a/package/platform/lantiq/ltq-deu/src/ifxmips_deu_danube.c b/package/platform/lantiq/ltq-deu/src/ifxmips_deu_danube.c
new file mode 100644
index 0000000..492391d
--- /dev/null
+++ b/package/platform/lantiq/ltq-deu/src/ifxmips_deu_danube.c
@@ -0,0 +1,168 @@
+/******************************************************************************
+**
+** FILE NAME    : ifxmips_deu_danube.c
+** PROJECT      : IFX UEIP
+** MODULES      : DEU Module for Danube
+**
+** 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 deu driver module
+*/
+
+/*!
+  \file	ifxmips_deu_danube.c
+  \ingroup IFX_DEU
+  \brief board specific deu driver file for danube
+*/
+
+/*!
+  \defgroup BOARD_SPECIFIC_FUNCTIONS IFX_BOARD_SPECIFIC_FUNCTIONS
+  \ingroup IFX_DEU
+  \brief board specific deu 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_danube.h"
+
+
+/* Function Declerations */
+int aes_memory_allocate(int value);
+int des_memory_allocate(int value);
+void memory_release(u32 *addr); 
+int 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 dma_memory_copy(u32 *outcopy, u32 *out_dma, u8 *out_arg, int nbytes);
+void chip_version(void); 
+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 definition */
+int ifx_danube_pre_1_4; 
+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 function is not used
+ *  \param input Data input to be swapped
+ *  \return input
+*/
+
+u32 endian_swap(u32 input)
+{
+    return input;
+}
+
+/*! \fn	u32 input_swap(u32 input)
+ *  \ingroup BOARD_SPECIFIC_FUNCTIONS
+ *  \brief Swap the input data if the current chip is Danube version
+ *         1.4 and do nothing to the data if the current chip is 
+ *         Danube version 1.3 
+ *  \param input data that needs to be swapped
+ *  \return input or swapped input
+*/
+
+u32 input_swap(u32 input)
+{
+    if (!ifx_danube_pre_1_4) {
+        u8 *ptr = (u8 *)&input;
+        return ((ptr[3] << 24) | (ptr[2] << 16) | (ptr[1] << 8) | ptr[0]); 
+    }
+    else 
+        return input;
+}
+
+
+
+/*! \fn void aes_chip_init (void)
+ *  \ingroup BOARD_SPECIFIC_FUNCTIONS
+ * \brief initialize AES hardware   
+*/
+
+int aes_chip_init (void)
+{
+    volatile struct aes_t *aes = (struct aes_t *) AES_START;
+
+    //start crypto engine with write to ILR
+    aes->controlr.SM = 1;
+    aes->controlr.ARS = 1;
+    return 0;
+}
+
+/*! \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;
+        des->controlr.ARS = 1;
+}
+
+/*! \fn void chip_version (void)
+ *  \ingroup IFX_DES_FUNCTIONS
+ *  \brief To find the version of the chip by looking at the chip ID
+ *  \param ifx_danube_pre_1_4 (sets to 1 if Chip is Danube less than v1.4)
+*/  
+#define IFX_MPS               (KSEG1 | 0x1F107000)
+#define IFX_MPS_CHIPID                          ((volatile u32*)(IFX_MPS + 0x0344))
+
+void chip_version(void) 
+{
+
+    /* DANUBE PRE 1.4 SOFTWARE FIX */
+    int chip_id = 0;
+    chip_id = *IFX_MPS_CHIPID;
+    chip_id >>= 28;
+
+    if (chip_id >= 4) {
+        ifx_danube_pre_1_4 = 0;
+        printk("Danube Chip ver. 1.4 detected. \n");
+    }
+    else {
+        ifx_danube_pre_1_4 = 1; 
+        printk("Danube Chip ver. 1.3 or below detected. \n");
+    }
+
+    return;
+}
+