[PATCH 05/11] staging: ti dspbridge: add MMU support

[Ohad Ben-Cohen <ohad@wizery.com>]

From: Omar Ramirez Luna <omar.ramirez@ti.com>

Add TI's DSP Bridge MMU support

Signed-off-by: Omar Ramirez Luna <omar.ramirez@ti.com>
Signed-off-by: Kanigeri, Hari <h-kanigeri2@ti.com>
Signed-off-by: Ameya Palande <ameya.palande@nokia.com>
Signed-off-by: Guzman Lugo, Fernando <fernando.lugo@ti.com>
Signed-off-by: Hebbar, Shivananda <x0hebbar@ti.com>
Signed-off-by: Ramos Falcon, Ernesto <ernesto@ti.com>
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Anna, Suman <s-anna@ti.com>
Signed-off-by: Gupta, Ramesh <grgupta@ti.com>
Signed-off-by: Gomez Castellanos, Ivan <ivan.gomez@ti.com>
Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@nokia.com>
Signed-off-by: Armando Uribe De Leon <x0095078@ti.com>
Signed-off-by: Deepak Chitriki <deepak.chitriki@ti.com>
Signed-off-by: Menon, Nishanth <nm@ti.com>
Signed-off-by: Phil Carmody <ext-phil.2.carmody@nokia.com>
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
---
 drivers/staging/tidspbridge/hw/EasiGlobal.h  |   41 ++
 drivers/staging/tidspbridge/hw/GlobalTypes.h |  308 ++++++++++++++
 drivers/staging/tidspbridge/hw/MMUAccInt.h   |   76 ++++
 drivers/staging/tidspbridge/hw/MMURegAcM.h   |  226 ++++++++++
 drivers/staging/tidspbridge/hw/hw_defs.h     |   60 +++
 drivers/staging/tidspbridge/hw/hw_mmu.c      |  587 ++++++++++++++++++++++++++
 drivers/staging/tidspbridge/hw/hw_mmu.h      |  161 +++++++
 7 files changed, 1459 insertions(+), 0 deletions(-)
 create mode 100644 drivers/staging/tidspbridge/hw/EasiGlobal.h
 create mode 100644 drivers/staging/tidspbridge/hw/GlobalTypes.h
 create mode 100644 drivers/staging/tidspbridge/hw/MMUAccInt.h
 create mode 100644 drivers/staging/tidspbridge/hw/MMURegAcM.h
 create mode 100644 drivers/staging/tidspbridge/hw/hw_defs.h
 create mode 100644 drivers/staging/tidspbridge/hw/hw_mmu.c
 create mode 100644 drivers/staging/tidspbridge/hw/hw_mmu.h

diff --git a/drivers/staging/tidspbridge/hw/EasiGlobal.h b/drivers/staging/tidspbridge/hw/EasiGlobal.h
new file mode 100644
index 0000000..9b45aa7
--- /dev/null
+++ b/drivers/staging/tidspbridge/hw/EasiGlobal.h
@@ -0,0 +1,41 @@
+/*
+ * EasiGlobal.h
+ *
+ * DSP-BIOS Bridge driver support functions for TI OMAP processors.
+ *
+ * Copyright (C) 2007 Texas Instruments, Inc.
+ *
+ * This package is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+#ifndef _EASIGLOBAL_H
+#define _EASIGLOBAL_H
+#include <linux/types.h>
+
+/*
+ * DEFINE:        READ_ONLY, WRITE_ONLY &  READ_WRITE
+ *
+ * DESCRIPTION: Defines used to describe register types for EASI-checker tests.
+ */
+
+#define READ_ONLY    1
+#define WRITE_ONLY   2
+#define READ_WRITE   3
+
+/*
+ * MACRO:        _DEBUG_LEVEL1_EASI
+ *
+ * DESCRIPTION:  A MACRO which can be used to indicate that a particular beach
+ *               register access function was called.
+ *
+ * NOTE:         We currently dont use this functionality.
+ */
+#define _DEBUG_LEVEL1_EASI(easiNum)     ((void)0)
+
+#endif /* _EASIGLOBAL_H */
diff --git a/drivers/staging/tidspbridge/hw/GlobalTypes.h b/drivers/staging/tidspbridge/hw/GlobalTypes.h
new file mode 100644
index 0000000..9b55150
--- /dev/null
+++ b/drivers/staging/tidspbridge/hw/GlobalTypes.h
@@ -0,0 +1,308 @@
+/*
+ * GlobalTypes.h
+ *
+ * DSP-BIOS Bridge driver support functions for TI OMAP processors.
+ *
+ * Global HW definitions
+ *
+ * Copyright (C) 2007 Texas Instruments, Inc.
+ *
+ * This package is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+#ifndef _GLOBALTYPES_H
+#define _GLOBALTYPES_H
+
+/*
+ * Definition: TRUE, FALSE
+ *
+ * DESCRIPTION:  Boolean Definitions
+ */
+#ifndef TRUE
+#define FALSE	0
+#define TRUE	(!(FALSE))
+#endif
+
+/*
+ * Definition: NULL
+ *
+ * DESCRIPTION:  Invalid pointer
+ */
+#ifndef NULL
+#define NULL	(void *)0
+#endif
+
+/*
+ * Definition: RET_CODE_BASE
+ *
+ * DESCRIPTION:  Base value for return code offsets
+ */
+#define RET_CODE_BASE	0
+
+/*
+ * Definition: *BIT_OFFSET
+ *
+ * DESCRIPTION:  offset in bytes from start of 32-bit word.
+ */
+#define LOWER16BIT_OFFSET	  0
+#define UPPER16BIT_OFFSET	  2
+
+#define LOWER8BIT_OFFSET	   0
+#define LOWER_MIDDLE8BIT_OFFSET    1
+#define UPPER_MIDDLE8BIT_OFFSET    2
+#define UPPER8BIT_OFFSET	   3
+
+#define LOWER8BIT_OF16_OFFSET      0
+#define UPPER8BIT_OF16_OFFSET      1
+
+/*
+ * Definition: *BIT_SHIFT
+ *
+ * DESCRIPTION:  offset in bits from start of 32-bit word.
+ */
+#define LOWER16BIT_SHIFT	  0
+#define UPPER16BIT_SHIFT	  16
+
+#define LOWER8BIT_SHIFT	   0
+#define LOWER_MIDDLE8BIT_SHIFT    8
+#define UPPER_MIDDLE8BIT_SHIFT    16
+#define UPPER8BIT_SHIFT	   24
+
+#define LOWER8BIT_OF16_SHIFT      0
+#define UPPER8BIT_OF16_SHIFT      8
+
+/*
+ * Definition: LOWER16BIT_MASK
+ *
+ * DESCRIPTION: 16 bit mask used for inclusion of lower 16 bits i.e. mask out
+ *		the upper 16 bits
+ */
+#define LOWER16BIT_MASK	0x0000FFFF
+
+/*
+ * Definition: LOWER8BIT_MASK
+ *
+ * DESCRIPTION: 8 bit masks used for inclusion of 8 bits i.e. mask out
+ *		the upper 16 bits
+ */
+#define LOWER8BIT_MASK	   0x000000FF
+
+/*
+ * Definition: RETURN32BITS_FROM16LOWER_AND16UPPER(lower16Bits, upper16Bits)
+ *
+ * DESCRIPTION: Returns a 32 bit value given a 16 bit lower value and a 16
+ *		bit upper value
+ */
+#define RETURN32BITS_FROM16LOWER_AND16UPPER(lower16Bits, upper16Bits)\
+    (((((u32)lower16Bits)  & LOWER16BIT_MASK)) | \
+     (((((u32)upper16Bits) & LOWER16BIT_MASK) << UPPER16BIT_SHIFT)))
+
+/*
+ * Definition: RETURN16BITS_FROM8LOWER_AND8UPPER(lower16Bits, upper16Bits)
+ *
+ * DESCRIPTION:  Returns a 16 bit value given a 8 bit lower value and a 8
+ *	       bit upper value
+ */
+#define RETURN16BITS_FROM8LOWER_AND8UPPER(lower8Bits, upper8Bits)\
+    (((((u32)lower8Bits)  & LOWER8BIT_MASK)) | \
+     (((((u32)upper8Bits) & LOWER8BIT_MASK) << UPPER8BIT_OF16_SHIFT)))
+
+/*
+ * Definition: RETURN32BITS_FROM48BIT_VALUES(lower8Bits, lowerMiddle8Bits,
+ * 					lowerUpper8Bits, upper8Bits)
+ *
+ * DESCRIPTION:  Returns a 32 bit value given four 8 bit values
+ */
+#define RETURN32BITS_FROM48BIT_VALUES(lower8Bits, lowerMiddle8Bits,\
+	lowerUpper8Bits, upper8Bits)\
+	(((((u32)lower8Bits) & LOWER8BIT_MASK)) | \
+	(((((u32)lowerMiddle8Bits) & LOWER8BIT_MASK) <<\
+		LOWER_MIDDLE8BIT_SHIFT)) | \
+	(((((u32)lowerUpper8Bits) & LOWER8BIT_MASK) <<\
+		UPPER_MIDDLE8BIT_SHIFT)) | \
+	(((((u32)upper8Bits) & LOWER8BIT_MASK) <<\
+		UPPER8BIT_SHIFT)))
+
+/*
+ * Definition: READ_LOWER16BITS_OF32(value32bits)
+ *
+ * DESCRIPTION:  Returns a 16 lower bits of 32bit value
+ */
+#define READ_LOWER16BITS_OF32(value32bits)\
+    ((u16)((u32)(value32bits) & LOWER16BIT_MASK))
+
+/*
+ * Definition: READ_UPPER16BITS_OF32(value32bits)
+ *
+ * DESCRIPTION:  Returns a 16 lower bits of 32bit value
+ */
+#define READ_UPPER16BITS_OF32(value32bits)\
+	(((u16)((u32)(value32bits) >> UPPER16BIT_SHIFT)) &\
+	LOWER16BIT_MASK)
+
+/*
+ * Definition: READ_LOWER8BITS_OF32(value32bits)
+ *
+ * DESCRIPTION:  Returns a 8 lower bits of 32bit value
+ */
+#define READ_LOWER8BITS_OF32(value32bits)\
+    ((u8)((u32)(value32bits) & LOWER8BIT_MASK))
+
+/*
+ * Definition: READ_LOWER_MIDDLE8BITS_OF32(value32bits)
+ *
+ * DESCRIPTION:  Returns a 8 lower middle bits of 32bit value
+ */
+#define READ_LOWER_MIDDLE8BITS_OF32(value32bits)\
+	(((u8)((u32)(value32bits) >> LOWER_MIDDLE8BIT_SHIFT)) &\
+	LOWER8BIT_MASK)
+
+/*
+ * Definition: READ_LOWER_MIDDLE8BITS_OF32(value32bits)
+ *
+ * DESCRIPTION:  Returns a 8 lower middle bits of 32bit value
+ */
+#define READ_UPPER_MIDDLE8BITS_OF32(value32bits)\
+	(((u8)((u32)(value32bits) >> LOWER_MIDDLE8BIT_SHIFT)) &\
+	LOWER8BIT_MASK)
+
+/*
+ * Definition: READ_UPPER8BITS_OF32(value32bits)
+ *
+ * DESCRIPTION:  Returns a 8 upper bits of 32bit value
+ */
+#define READ_UPPER8BITS_OF32(value32bits)\
+    (((u8)((u32)(value32bits) >> UPPER8BIT_SHIFT)) & LOWER8BIT_MASK)
+
+/*
+ * Definition: READ_LOWER8BITS_OF16(value16bits)
+ *
+ * DESCRIPTION:  Returns a 8 lower bits of 16bit value
+ */
+#define READ_LOWER8BITS_OF16(value16bits)\
+    ((u8)((u16)(value16bits) & LOWER8BIT_MASK))
+
+/*
+ * Definition: READ_UPPER8BITS_OF16(value32bits)
+ *
+ * DESCRIPTION:  Returns a 8 upper bits of 16bit value
+ */
+#define READ_UPPER8BITS_OF16(value16bits)\
+    (((u8)((u32)(value16bits) >> UPPER8BIT_SHIFT)) & LOWER8BIT_MASK)
+
+/* UWORD16:  16 bit tpyes */
+
+/* reg_uword8, reg_word8: 8 bit register types */
+typedef volatile unsigned char reg_uword8;
+typedef volatile signed char reg_word8;
+
+/* reg_uword16, reg_word16: 16 bit register types */
+#ifndef OMAPBRIDGE_TYPES
+typedef volatile unsigned short reg_uword16;
+#endif
+typedef volatile short reg_word16;
+
+/* reg_uword32, REG_WORD32: 32 bit register types */
+typedef volatile unsigned long reg_uword32;
+
+/* FLOAT
+ *
+ * Type to be used for floating point calculation. Note that floating point
+ * calculation is very CPU expensive, and you should only  use if you
+ * absolutely need this. */
+
+/* boolean_t:  Boolean Type True, False */
+/* return_code_t:  Return codes to be returned by all library functions */
+enum return_code_label {
+	RET_OK = 0,
+	RET_FAIL = -1,
+	RET_BAD_NULL_PARAM = -2,
+	RET_PARAM_OUT_OF_RANGE = -3,
+	RET_INVALID_ID = -4,
+	RET_EMPTY = -5,
+	RET_FULL = -6,
+	RET_TIMEOUT = -7,
+	RET_INVALID_OPERATION = -8,
+
+	/* Add new error codes at end of above list */
+
+	RET_NUM_RET_CODES	/* this should ALWAYS be LAST entry */
+};
+
+/* MACRO: RD_MEM8, WR_MEM8
+ *
+ * DESCRIPTION:  32 bit memory access macros
+ */
+#define RD_MEM8(addr)	((u8)(*((u8 *)(addr))))
+#define WR_MEM8(addr, data)	(*((u8 *)(addr)) = (u8)(data))
+
+/* MACRO: RD_MEM8_VOLATILE, WR_MEM8_VOLATILE
+ *
+ * DESCRIPTION:  8 bit register access macros
+ */
+#define RD_MEM8_VOLATILE(addr)	((u8)(*((reg_uword8 *)(addr))))
+#define WR_MEM8_VOLATILE(addr, data) (*((reg_uword8 *)(addr)) = (u8)(data))
+
+/*
+ * MACRO: RD_MEM16, WR_MEM16
+ *
+ * DESCRIPTION:  16 bit memory access macros
+ */
+#define RD_MEM16(addr)	((u16)(*((u16 *)(addr))))
+#define WR_MEM16(addr, data)	(*((u16 *)(addr)) = (u16)(data))
+
+/*
+ * MACRO: RD_MEM16_VOLATILE, WR_MEM16_VOLATILE
+ *
+ * DESCRIPTION:  16 bit register access macros
+ */
+#define RD_MEM16_VOLATILE(addr)	((u16)(*((reg_uword16 *)(addr))))
+#define WR_MEM16_VOLATILE(addr, data)	(*((reg_uword16 *)(addr)) =\
+					(u16)(data))
+
+/*
+ * MACRO: RD_MEM32, WR_MEM32
+ *
+ * DESCRIPTION:  32 bit memory access macros
+ */
+#define RD_MEM32(addr)	((u32)(*((u32 *)(addr))))
+#define WR_MEM32(addr, data)	(*((u32 *)(addr)) = (u32)(data))
+
+/*
+ * MACRO: RD_MEM32_VOLATILE, WR_MEM32_VOLATILE
+ *
+ * DESCRIPTION:  32 bit register access macros
+ */
+#define RD_MEM32_VOLATILE(addr)	((u32)(*((reg_uword32 *)(addr))))
+#define WR_MEM32_VOLATILE(addr, data)	(*((reg_uword32 *)(addr)) =\
+					(u32)(data))
+
+/* Not sure if this all belongs here */
+
+#define CHECK_RETURN_VALUE(actualValue, expectedValue,  returnCodeIfMismatch,\
+	spyCodeIfMisMatch)
+#define CHECK_RETURN_VALUE_RET(actualValue, expectedValue, returnCodeIfMismatch)
+#define CHECK_RETURN_VALUE_RES(actualValue, expectedValue, spyCodeIfMisMatch)
+#define CHECK_RETURN_VALUE_RET_VOID(actualValue, expectedValue,\
+	spyCodeIfMisMatch)
+
+#define CHECK_INPUT_PARAM(actualValue, invalidValue, returnCodeIfMismatch,\
+	spyCodeIfMisMatch)
+#define CHECK_INPUT_PARAM_NO_SPY(actualValue, invalidValue,\
+	returnCodeIfMismatch)
+#define CHECK_INPUT_RANGE(actualValue, minValidValue, maxValidValue,\
+	returnCodeIfMismatch, spyCodeIfMisMatch)
+#define CHECK_INPUT_RANGE_NO_SPY(actualValue, minValidValue, maxValidValue,\
+	returnCodeIfMismatch)
+#define CHECK_INPUT_RANGE_MIN0(actualValue, maxValidValue,\
+	returnCodeIfMismatch, spyCodeIfMisMatch)
+#define CHECK_INPUT_RANGE_NO_SPY_MIN0(actualValue, maxValidValue,\
+	returnCodeIfMismatch)
+
+#endif /* _GLOBALTYPES_H */
diff --git a/drivers/staging/tidspbridge/hw/MMUAccInt.h b/drivers/staging/tidspbridge/hw/MMUAccInt.h
new file mode 100644
index 0000000..1cefca3
--- /dev/null
+++ b/drivers/staging/tidspbridge/hw/MMUAccInt.h
@@ -0,0 +1,76 @@
+/*
+ * MMUAccInt.h
+ *
+ * DSP-BIOS Bridge driver support functions for TI OMAP processors.
+ *
+ * Copyright (C) 2007 Texas Instruments, Inc.
+ *
+ * This package is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+#ifndef _MMU_ACC_INT_H
+#define _MMU_ACC_INT_H
+
+/* Mappings of level 1 EASI function numbers to function names */
+
+#define EASIL1_MMUMMU_SYSCONFIG_READ_REGISTER32 (MMU_BASE_EASIL1 + 3)
+#define EASIL1_MMUMMU_SYSCONFIG_IDLE_MODE_WRITE32  (MMU_BASE_EASIL1 + 17)
+#define EASIL1_MMUMMU_SYSCONFIG_AUTO_IDLE_WRITE32    (MMU_BASE_EASIL1 + 39)
+#define EASIL1_MMUMMU_IRQSTATUS_WRITE_REGISTER32   (MMU_BASE_EASIL1 + 51)
+#define EASIL1_MMUMMU_IRQENABLE_READ_REGISTER32 (MMU_BASE_EASIL1 + 102)
+#define EASIL1_MMUMMU_IRQENABLE_WRITE_REGISTER32 (MMU_BASE_EASIL1 + 103)
+#define EASIL1_MMUMMU_WALKING_STTWL_RUNNING_READ32 (MMU_BASE_EASIL1 + 156)
+#define EASIL1_MMUMMU_CNTLTWL_ENABLE_READ32 (MMU_BASE_EASIL1 + 174)
+#define EASIL1_MMUMMU_CNTLTWL_ENABLE_WRITE32   (MMU_BASE_EASIL1 + 180)
+#define EASIL1_MMUMMU_CNTLMMU_ENABLE_WRITE32     (MMU_BASE_EASIL1 + 190)
+#define EASIL1_MMUMMU_FAULT_AD_READ_REGISTER32   (MMU_BASE_EASIL1 + 194)
+#define EASIL1_MMUMMU_TTB_WRITE_REGISTER32  (MMU_BASE_EASIL1 + 198)
+#define EASIL1_MMUMMU_LOCK_READ_REGISTER32   (MMU_BASE_EASIL1 + 203)
+#define EASIL1_MMUMMU_LOCK_WRITE_REGISTER32  (MMU_BASE_EASIL1 + 204)
+#define EASIL1_MMUMMU_LOCK_BASE_VALUE_READ32  (MMU_BASE_EASIL1 + 205)
+#define EASIL1_MMUMMU_LOCK_CURRENT_VICTIM_READ32 (MMU_BASE_EASIL1 + 209)
+#define EASIL1_MMUMMU_LOCK_CURRENT_VICTIM_WRITE32 (MMU_BASE_EASIL1 + 211)
+#define EASIL1_MMUMMU_LOCK_CURRENT_VICTIM_SET32  (MMU_BASE_EASIL1 + 212)
+#define EASIL1_MMUMMU_LD_TLB_READ_REGISTER32    (MMU_BASE_EASIL1 + 213)
+#define EASIL1_MMUMMU_LD_TLB_WRITE_REGISTER32   (MMU_BASE_EASIL1 + 214)
+#define EASIL1_MMUMMU_CAM_WRITE_REGISTER32   (MMU_BASE_EASIL1 + 226)
+#define EASIL1_MMUMMU_RAM_WRITE_REGISTER32 (MMU_BASE_EASIL1 + 268)
+#define EASIL1_MMUMMU_FLUSH_ENTRY_WRITE_REGISTER32  (MMU_BASE_EASIL1 + 322)
+
+/* Register offset address definitions */
+#define MMU_MMU_SYSCONFIG_OFFSET   0x10
+#define MMU_MMU_IRQSTATUS_OFFSET  0x18
+#define MMU_MMU_IRQENABLE_OFFSET    0x1c
+#define MMU_MMU_WALKING_ST_OFFSET 0x40
+#define MMU_MMU_CNTL_OFFSET   0x44
+#define MMU_MMU_FAULT_AD_OFFSET  0x48
+#define MMU_MMU_TTB_OFFSET  0x4c
+#define MMU_MMU_LOCK_OFFSET   0x50
+#define MMU_MMU_LD_TLB_OFFSET  0x54
+#define MMU_MMU_CAM_OFFSET   0x58
+#define MMU_MMU_RAM_OFFSET   0x5c
+#define MMU_MMU_GFLUSH_OFFSET  0x60
+#define MMU_MMU_FLUSH_ENTRY_OFFSET  0x64
+/* Bitfield mask and offset declarations */
+#define MMU_MMU_SYSCONFIG_IDLE_MODE_MASK  0x18
+#define MMU_MMU_SYSCONFIG_IDLE_MODE_OFFSET  3
+#define MMU_MMU_SYSCONFIG_AUTO_IDLE_MASK  0x1
+#define MMU_MMU_SYSCONFIG_AUTO_IDLE_OFFSET   0
+#define MMU_MMU_WALKING_ST_TWL_RUNNING_MASK 0x1
+#define MMU_MMU_WALKING_ST_TWL_RUNNING_OFFSET  0
+#define MMU_MMU_CNTL_TWL_ENABLE_MASK 0x4
+#define MMU_MMU_CNTL_TWL_ENABLE_OFFSET 2
+#define MMU_MMU_CNTL_MMU_ENABLE_MASK    0x2
+#define MMU_MMU_CNTL_MMU_ENABLE_OFFSET   1
+#define MMU_MMU_LOCK_BASE_VALUE_MASK 0xfc00
+#define MMU_MMU_LOCK_BASE_VALUE_OFFSET   10
+#define MMU_MMU_LOCK_CURRENT_VICTIM_MASK   0x3f0
+#define MMU_MMU_LOCK_CURRENT_VICTIM_OFFSET    4
+
+#endif /* _MMU_ACC_INT_H */
diff --git a/drivers/staging/tidspbridge/hw/MMURegAcM.h b/drivers/staging/tidspbridge/hw/MMURegAcM.h
new file mode 100644
index 0000000..8c0c549
--- /dev/null
+++ b/drivers/staging/tidspbridge/hw/MMURegAcM.h
@@ -0,0 +1,226 @@
+/*
+ * MMURegAcM.h
+ *
+ * DSP-BIOS Bridge driver support functions for TI OMAP processors.
+ *
+ * Copyright (C) 2007 Texas Instruments, Inc.
+ *
+ * This package is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+#ifndef _MMU_REG_ACM_H
+#define _MMU_REG_ACM_H
+
+#include <GlobalTypes.h>
+#include <linux/io.h>
+#include <EasiGlobal.h>
+
+#include "MMUAccInt.h"
+
+#if defined(USE_LEVEL_1_MACROS)
+
+#define MMUMMU_SYSCONFIG_READ_REGISTER32(baseAddress)\
+    (_DEBUG_LEVEL1_EASI(EASIL1_MMUMMU_SYSCONFIG_READ_REGISTER32),\
+      __raw_readl((baseAddress)+MMU_MMU_SYSCONFIG_OFFSET))
+
+#define MMUMMU_SYSCONFIG_IDLE_MODE_WRITE32(baseAddress, value)\
+{\
+    const u32 offset = MMU_MMU_SYSCONFIG_OFFSET;\
+    register u32 data = __raw_readl((baseAddress)+offset);\
+    register u32 newValue = (value);\
+    _DEBUG_LEVEL1_EASI(EASIL1_MMUMMU_SYSCONFIG_IDLE_MODE_WRITE32);\
+    data &= ~(MMU_MMU_SYSCONFIG_IDLE_MODE_MASK);\
+    newValue <<= MMU_MMU_SYSCONFIG_IDLE_MODE_OFFSET;\
+    newValue &= MMU_MMU_SYSCONFIG_IDLE_MODE_MASK;\
+    newValue |= data;\
+    __raw_writel(newValue, baseAddress+offset);\
+}
+
+#define MMUMMU_SYSCONFIG_AUTO_IDLE_WRITE32(baseAddress, value)\
+{\
+    const u32 offset = MMU_MMU_SYSCONFIG_OFFSET;\
+    register u32 data = __raw_readl((baseAddress)+offset);\
+    register u32 newValue = (value);\
+    _DEBUG_LEVEL1_EASI(EASIL1_MMUMMU_SYSCONFIG_AUTO_IDLE_WRITE32);\
+    data &= ~(MMU_MMU_SYSCONFIG_AUTO_IDLE_MASK);\
+    newValue <<= MMU_MMU_SYSCONFIG_AUTO_IDLE_OFFSET;\
+    newValue &= MMU_MMU_SYSCONFIG_AUTO_IDLE_MASK;\
+    newValue |= data;\
+    __raw_writel(newValue, baseAddress+offset);\
+}
+
+#define MMUMMU_IRQSTATUS_READ_REGISTER32(baseAddress)\
+    (_DEBUG_LEVEL1_EASI(EASIL1_MMUMMU_IRQSTATUSReadRegister32),\
+      __raw_readl((baseAddress)+MMU_MMU_IRQSTATUS_OFFSET))
+
+#define MMUMMU_IRQSTATUS_WRITE_REGISTER32(baseAddress, value)\
+{\
+    const u32 offset = MMU_MMU_IRQSTATUS_OFFSET;\
+    register u32 newValue = (value);\
+    _DEBUG_LEVEL1_EASI(EASIL1_MMUMMU_IRQSTATUS_WRITE_REGISTER32);\
+    __raw_writel(newValue, (baseAddress)+offset);\
+}
+
+#define MMUMMU_IRQENABLE_READ_REGISTER32(baseAddress)\
+    (_DEBUG_LEVEL1_EASI(EASIL1_MMUMMU_IRQENABLE_READ_REGISTER32),\
+      __raw_readl((baseAddress)+MMU_MMU_IRQENABLE_OFFSET))
+
+#define MMUMMU_IRQENABLE_WRITE_REGISTER32(baseAddress, value)\
+{\
+    const u32 offset = MMU_MMU_IRQENABLE_OFFSET;\
+    register u32 newValue = (value);\
+    _DEBUG_LEVEL1_EASI(EASIL1_MMUMMU_IRQENABLE_WRITE_REGISTER32);\
+    __raw_writel(newValue, (baseAddress)+offset);\
+}
+
+#define MMUMMU_WALKING_STTWL_RUNNING_READ32(baseAddress)\
+    (_DEBUG_LEVEL1_EASI(EASIL1_MMUMMU_WALKING_STTWL_RUNNING_READ32),\
+      (((__raw_readl(((baseAddress)+(MMU_MMU_WALKING_ST_OFFSET))))\
+      & MMU_MMU_WALKING_ST_TWL_RUNNING_MASK) >>\
+      MMU_MMU_WALKING_ST_TWL_RUNNING_OFFSET))
+
+#define MMUMMU_CNTLTWL_ENABLE_READ32(baseAddress)\
+    (_DEBUG_LEVEL1_EASI(EASIL1_MMUMMU_CNTLTWL_ENABLE_READ32),\
+      (((__raw_readl(((baseAddress)+(MMU_MMU_CNTL_OFFSET)))) &\
+      MMU_MMU_CNTL_TWL_ENABLE_MASK) >>\
+      MMU_MMU_CNTL_TWL_ENABLE_OFFSET))
+
+#define MMUMMU_CNTLTWL_ENABLE_WRITE32(baseAddress, value)\
+{\
+    const u32 offset = MMU_MMU_CNTL_OFFSET;\
+    register u32 data = __raw_readl((baseAddress)+offset);\
+    register u32 newValue = (value);\
+    _DEBUG_LEVEL1_EASI(EASIL1_MMUMMU_CNTLTWL_ENABLE_WRITE32);\
+    data &= ~(MMU_MMU_CNTL_TWL_ENABLE_MASK);\
+    newValue <<= MMU_MMU_CNTL_TWL_ENABLE_OFFSET;\
+    newValue &= MMU_MMU_CNTL_TWL_ENABLE_MASK;\
+    newValue |= data;\
+    __raw_writel(newValue, baseAddress+offset);\
+}
+
+#define MMUMMU_CNTLMMU_ENABLE_WRITE32(baseAddress, value)\
+{\
+    const u32 offset = MMU_MMU_CNTL_OFFSET;\
+    register u32 data = __raw_readl((baseAddress)+offset);\
+    register u32 newValue = (value);\
+    _DEBUG_LEVEL1_EASI(EASIL1_MMUMMU_CNTLMMU_ENABLE_WRITE32);\
+    data &= ~(MMU_MMU_CNTL_MMU_ENABLE_MASK);\
+    newValue <<= MMU_MMU_CNTL_MMU_ENABLE_OFFSET;\
+    newValue &= MMU_MMU_CNTL_MMU_ENABLE_MASK;\
+    newValue |= data;\
+    __raw_writel(newValue, baseAddress+offset);\
+}
+
+#define MMUMMU_FAULT_AD_READ_REGISTER32(baseAddress)\
+    (_DEBUG_LEVEL1_EASI(EASIL1_MMUMMU_FAULT_AD_READ_REGISTER32),\
+      __raw_readl((baseAddress)+MMU_MMU_FAULT_AD_OFFSET))
+
+#define MMUMMU_TTB_WRITE_REGISTER32(baseAddress, value)\
+{\
+    const u32 offset = MMU_MMU_TTB_OFFSET;\
+    register u32 newValue = (value);\
+    _DEBUG_LEVEL1_EASI(EASIL1_MMUMMU_TTB_WRITE_REGISTER32);\
+    __raw_writel(newValue, (baseAddress)+offset);\
+}
+
+#define MMUMMU_LOCK_READ_REGISTER32(baseAddress)\
+    (_DEBUG_LEVEL1_EASI(EASIL1_MMUMMU_LOCK_READ_REGISTER32),\
+      __raw_readl((baseAddress)+MMU_MMU_LOCK_OFFSET))
+
+#define MMUMMU_LOCK_WRITE_REGISTER32(baseAddress, value)\
+{\
+    const u32 offset = MMU_MMU_LOCK_OFFSET;\
+    register u32 newValue = (value);\
+    _DEBUG_LEVEL1_EASI(EASIL1_MMUMMU_LOCK_WRITE_REGISTER32);\
+    __raw_writel(newValue, (baseAddress)+offset);\
+}
+
+#define MMUMMU_LOCK_BASE_VALUE_READ32(baseAddress)\
+    (_DEBUG_LEVEL1_EASI(EASIL1_MMUMMU_LOCK_BASE_VALUE_READ32),\
+      (((__raw_readl(((baseAddress)+(MMU_MMU_LOCK_OFFSET)))) &\
+      MMU_MMU_LOCK_BASE_VALUE_MASK) >>\
+      MMU_MMU_LOCK_BASE_VALUE_OFFSET))
+
+#define MMUMMU_LOCK_BASE_VALUE_WRITE32(baseAddress, value)\
+{\
+    const u32 offset = MMU_MMU_LOCK_OFFSET;\
+    register u32 data = __raw_readl((baseAddress)+offset);\
+    register u32 newValue = (value);\
+    _DEBUG_LEVEL1_EASI(EASIL1_MMUMMU_LOCKBaseValueWrite32);\
+    data &= ~(MMU_MMU_LOCK_BASE_VALUE_MASK);\
+    newValue <<= MMU_MMU_LOCK_BASE_VALUE_OFFSET;\
+    newValue &= MMU_MMU_LOCK_BASE_VALUE_MASK;\
+    newValue |= data;\
+    __raw_writel(newValue, baseAddress+offset);\
+}
+
+#define MMUMMU_LOCK_CURRENT_VICTIM_READ32(baseAddress)\
+    (_DEBUG_LEVEL1_EASI(EASIL1_MMUMMU_LOCK_CURRENT_VICTIM_READ32),\
+      (((__raw_readl(((baseAddress)+(MMU_MMU_LOCK_OFFSET)))) &\
+      MMU_MMU_LOCK_CURRENT_VICTIM_MASK) >>\
+      MMU_MMU_LOCK_CURRENT_VICTIM_OFFSET))
+
+#define MMUMMU_LOCK_CURRENT_VICTIM_WRITE32(baseAddress, value)\
+{\
+    const u32 offset = MMU_MMU_LOCK_OFFSET;\
+    register u32 data = __raw_readl((baseAddress)+offset);\
+    register u32 newValue = (value);\
+    _DEBUG_LEVEL1_EASI(EASIL1_MMUMMU_LOCK_CURRENT_VICTIM_WRITE32);\
+    data &= ~(MMU_MMU_LOCK_CURRENT_VICTIM_MASK);\
+    newValue <<= MMU_MMU_LOCK_CURRENT_VICTIM_OFFSET;\
+    newValue &= MMU_MMU_LOCK_CURRENT_VICTIM_MASK;\
+    newValue |= data;\
+    __raw_writel(newValue, baseAddress+offset);\
+}
+
+#define MMUMMU_LOCK_CURRENT_VICTIM_SET32(var, value)\
+    (_DEBUG_LEVEL1_EASI(EASIL1_MMUMMU_LOCK_CURRENT_VICTIM_SET32),\
+      (((var) & ~(MMU_MMU_LOCK_CURRENT_VICTIM_MASK)) |\
+      (((value) << MMU_MMU_LOCK_CURRENT_VICTIM_OFFSET) &\
+      MMU_MMU_LOCK_CURRENT_VICTIM_MASK)))
+
+#define MMUMMU_LD_TLB_READ_REGISTER32(baseAddress)\
+    (_DEBUG_LEVEL1_EASI(EASIL1_MMUMMU_LD_TLB_READ_REGISTER32),\
+      __raw_readl((baseAddress)+MMU_MMU_LD_TLB_OFFSET))
+
+#define MMUMMU_LD_TLB_WRITE_REGISTER32(baseAddress, value)\
+{\
+    const u32 offset = MMU_MMU_LD_TLB_OFFSET;\
+    register u32 newValue = (value);\
+    _DEBUG_LEVEL1_EASI(EASIL1_MMUMMU_LD_TLB_WRITE_REGISTER32);\
+    __raw_writel(newValue, (baseAddress)+offset);\
+}
+
+#define MMUMMU_CAM_WRITE_REGISTER32(baseAddress, value)\
+{\
+    const u32 offset = MMU_MMU_CAM_OFFSET;\
+    register u32 newValue = (value);\
+    _DEBUG_LEVEL1_EASI(EASIL1_MMUMMU_CAM_WRITE_REGISTER32);\
+    __raw_writel(newValue, (baseAddress)+offset);\
+}
+
+#define MMUMMU_RAM_WRITE_REGISTER32(baseAddress, value)\
+{\
+    const u32 offset = MMU_MMU_RAM_OFFSET;\
+    register u32 newValue = (value);\
+    _DEBUG_LEVEL1_EASI(EASIL1_MMUMMU_RAM_WRITE_REGISTER32);\
+    __raw_writel(newValue, (baseAddress)+offset);\
+}
+
+#define MMUMMU_FLUSH_ENTRY_WRITE_REGISTER32(baseAddress, value)\
+{\
+    const u32 offset = MMU_MMU_FLUSH_ENTRY_OFFSET;\
+    register u32 newValue = (value);\
+    _DEBUG_LEVEL1_EASI(EASIL1_MMUMMU_FLUSH_ENTRY_WRITE_REGISTER32);\
+    __raw_writel(newValue, (baseAddress)+offset);\
+}
+
+#endif /* USE_LEVEL_1_MACROS */
+
+#endif /* _MMU_REG_ACM_H */
diff --git a/drivers/staging/tidspbridge/hw/hw_defs.h b/drivers/staging/tidspbridge/hw/hw_defs.h
new file mode 100644
index 0000000..98f6045
--- /dev/null
+++ b/drivers/staging/tidspbridge/hw/hw_defs.h
@@ -0,0 +1,60 @@
+/*
+ * hw_defs.h
+ *
+ * DSP-BIOS Bridge driver support functions for TI OMAP processors.
+ *
+ * Global HW definitions
+ *
+ * Copyright (C) 2007 Texas Instruments, Inc.
+ *
+ * This package is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+#ifndef _HW_DEFS_H
+#define _HW_DEFS_H
+
+#include <GlobalTypes.h>
+
+/* Page size */
+#define HW_PAGE_SIZE4KB   0x1000
+#define HW_PAGE_SIZE64KB  0x10000
+#define HW_PAGE_SIZE1MB   0x100000
+#define HW_PAGE_SIZE16MB  0x1000000
+
+/* hw_status:  return type for HW API */
+typedef long hw_status;
+
+/*  Macro used to set and clear any bit */
+#define HW_CLEAR	0
+#define HW_SET		1
+
+/* hw_endianism_t:  Enumerated Type used to specify the endianism
+ *		Do NOT change these values. They are used as bit fields. */
+enum hw_endianism_t {
+	HW_LITTLE_ENDIAN,
+	HW_BIG_ENDIAN
+};
+
+/* hw_element_size_t:  Enumerated Type used to specify the element size
+ *		Do NOT change these values. They are used as bit fields. */
+enum hw_element_size_t {
+	HW_ELEM_SIZE8BIT,
+	HW_ELEM_SIZE16BIT,
+	HW_ELEM_SIZE32BIT,
+	HW_ELEM_SIZE64BIT
+};
+
+/* hw_idle_mode_t:  Enumerated Type used to specify Idle modes */
+enum hw_idle_mode_t {
+	HW_FORCE_IDLE,
+	HW_NO_IDLE,
+	HW_SMART_IDLE
+};
+
+#endif /* _HW_DEFS_H */
diff --git a/drivers/staging/tidspbridge/hw/hw_mmu.c b/drivers/staging/tidspbridge/hw/hw_mmu.c
new file mode 100644
index 0000000..965b659
--- /dev/null
+++ b/drivers/staging/tidspbridge/hw/hw_mmu.c
@@ -0,0 +1,587 @@
+/*
+ * hw_mmu.c
+ *
+ * DSP-BIOS Bridge driver support functions for TI OMAP processors.
+ *
+ * API definitions to setup MMU TLB and PTE
+ *
+ * Copyright (C) 2007 Texas Instruments, Inc.
+ *
+ * This package is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+#include <GlobalTypes.h>
+#include <linux/io.h>
+#include "MMURegAcM.h"
+#include <hw_defs.h>
+#include <hw_mmu.h>
+#include <linux/types.h>
+
+#define MMU_BASE_VAL_MASK	0xFC00
+#define MMU_PAGE_MAX	     3
+#define MMU_ELEMENTSIZE_MAX      3
+#define MMU_ADDR_MASK	    0xFFFFF000
+#define MMU_TTB_MASK	     0xFFFFC000
+#define MMU_SECTION_ADDR_MASK    0xFFF00000
+#define MMU_SSECTION_ADDR_MASK   0xFF000000
+#define MMU_PAGE_TABLE_MASK      0xFFFFFC00
+#define MMU_LARGE_PAGE_MASK      0xFFFF0000
+#define MMU_SMALL_PAGE_MASK      0xFFFFF000
+
+#define MMU_LOAD_TLB	0x00000001
+
+/*
+ * hw_mmu_page_size_t: Enumerated Type used to specify the MMU Page Size(SLSS)
+ */
+enum hw_mmu_page_size_t {
+	HW_MMU_SECTION,
+	HW_MMU_LARGE_PAGE,
+	HW_MMU_SMALL_PAGE,
+	HW_MMU_SUPERSECTION
+};
+
+/*
+ * FUNCTION	      : mmu_flush_entry
+ *
+ * INPUTS:
+ *
+ *       Identifier      : baseAddress
+ *       Type		: const u32
+ *       Description     : Base Address of instance of MMU module
+ *
+ * RETURNS:
+ *
+ *       Type		: hw_status
+ *       Description     : RET_OK		 -- No errors occured
+ *			 RET_BAD_NULL_PARAM     -- A Pointer
+ *						Paramater was set to NULL
+ *
+ * PURPOSE:	      : Flush the TLB entry pointed by the
+ *			lock counter register
+ *			even if this entry is set protected
+ *
+ * METHOD:	       : Check the Input parameter and Flush a
+ *			 single entry in the TLB.
+ */
+static hw_status mmu_flush_entry(const void __iomem *baseAddress);
+
+/*
+ * FUNCTION	      : mmu_set_cam_entry
+ *
+ * INPUTS:
+ *
+ *       Identifier      : baseAddress
+ *       TypE		: const u32
+ *       Description     : Base Address of instance of MMU module
+ *
+ *       Identifier      : pageSize
+ *       TypE		: const u32
+ *       Description     : It indicates the page size
+ *
+ *       Identifier      : preservedBit
+ *       Type		: const u32
+ *       Description     : It indicates the TLB entry is preserved entry
+ *							or not
+ *
+ *       Identifier      : validBit
+ *       Type		: const u32
+ *       Description     : It indicates the TLB entry is valid entry or not
+ *
+ *
+ *       Identifier      : virtual_addr_tag
+ *       Type	    	: const u32
+ *       Description     : virtual Address
+ *
+ * RETURNS:
+ *
+ *       Type	    	: hw_status
+ *       Description     : RET_OK		 -- No errors occured
+ *			 RET_BAD_NULL_PARAM     -- A Pointer Paramater
+ *						   was set to NULL
+ *			 RET_PARAM_OUT_OF_RANGE -- Input Parameter out
+ *						   of Range
+ *
+ * PURPOSE:	      	: Set MMU_CAM reg
+ *
+ * METHOD:	       	: Check the Input parameters and set the CAM entry.
+ */
+static hw_status mmu_set_cam_entry(const void __iomem *baseAddress,
+				   const u32 pageSize,
+				   const u32 preservedBit,
+				   const u32 validBit,
+				   const u32 virtual_addr_tag);
+
+/*
+ * FUNCTION	      : mmu_set_ram_entry
+ *
+ * INPUTS:
+ *
+ *       Identifier      : baseAddress
+ *       Type	    	: const u32
+ *       Description     : Base Address of instance of MMU module
+ *
+ *       Identifier      : physicalAddr
+ *       Type	    	: const u32
+ *       Description     : Physical Address to which the corresponding
+ *			 virtual   Address shouldpoint
+ *
+ *       Identifier      : endianism
+ *       Type	    	: hw_endianism_t
+ *       Description     : endianism for the given page
+ *
+ *       Identifier      : element_size
+ *       Type	    	: hw_element_size_t
+ *       Description     : The element size ( 8,16, 32 or 64 bit)
+ *
+ *       Identifier      : mixed_size
+ *       Type	    	: hw_mmu_mixed_size_t
+ *       Description     : Element Size to follow CPU or TLB
+ *
+ * RETURNS:
+ *
+ *       Type	    	: hw_status
+ *       Description     : RET_OK		 -- No errors occured
+ *			 RET_BAD_NULL_PARAM     -- A Pointer Paramater
+ *							was set to NULL
+ *			 RET_PARAM_OUT_OF_RANGE -- Input Parameter
+ *							out of Range
+ *
+ * PURPOSE:	      : Set MMU_CAM reg
+ *
+ * METHOD:	       : Check the Input parameters and set the RAM entry.
+ */
+static hw_status mmu_set_ram_entry(const void __iomem *baseAddress,
+				   const u32 physicalAddr,
+				   enum hw_endianism_t endianism,
+				   enum hw_element_size_t element_size,
+				   enum hw_mmu_mixed_size_t mixed_size);
+
+/* HW FUNCTIONS */
+
+hw_status hw_mmu_enable(const void __iomem *baseAddress)
+{
+	hw_status status = RET_OK;
+
+	MMUMMU_CNTLMMU_ENABLE_WRITE32(baseAddress, HW_SET);
+
+	return status;
+}
+
+hw_status hw_mmu_disable(const void __iomem *baseAddress)
+{
+	hw_status status = RET_OK;
+
+	MMUMMU_CNTLMMU_ENABLE_WRITE32(baseAddress, HW_CLEAR);
+
+	return status;
+}
+
+hw_status hw_mmu_num_locked_set(const void __iomem *baseAddress,
+				u32 numLockedEntries)
+{
+	hw_status status = RET_OK;
+
+	MMUMMU_LOCK_BASE_VALUE_WRITE32(baseAddress, numLockedEntries);
+
+	return status;
+}
+
+hw_status hw_mmu_victim_num_set(const void __iomem *baseAddress,
+				u32 victimEntryNum)
+{
+	hw_status status = RET_OK;
+
+	MMUMMU_LOCK_CURRENT_VICTIM_WRITE32(baseAddress, victimEntryNum);
+
+	return status;
+}
+
+hw_status hw_mmu_event_ack(const void __iomem *baseAddress, u32 irqMask)
+{
+	hw_status status = RET_OK;
+
+	MMUMMU_IRQSTATUS_WRITE_REGISTER32(baseAddress, irqMask);
+
+	return status;
+}
+
+hw_status hw_mmu_event_disable(const void __iomem *baseAddress, u32 irqMask)
+{
+	hw_status status = RET_OK;
+	u32 irq_reg;
+
+	irq_reg = MMUMMU_IRQENABLE_READ_REGISTER32(baseAddress);
+
+	MMUMMU_IRQENABLE_WRITE_REGISTER32(baseAddress, irq_reg & ~irqMask);
+
+	return status;
+}
+
+hw_status hw_mmu_event_enable(const void __iomem *baseAddress, u32 irqMask)
+{
+	hw_status status = RET_OK;
+	u32 irq_reg;
+
+	irq_reg = MMUMMU_IRQENABLE_READ_REGISTER32(baseAddress);
+
+	MMUMMU_IRQENABLE_WRITE_REGISTER32(baseAddress, irq_reg | irqMask);
+
+	return status;
+}
+
+hw_status hw_mmu_event_status(const void __iomem *baseAddress, u32 *irqMask)
+{
+	hw_status status = RET_OK;
+
+	*irqMask = MMUMMU_IRQSTATUS_READ_REGISTER32(baseAddress);
+
+	return status;
+}
+
+hw_status hw_mmu_fault_addr_read(const void __iomem *baseAddress, u32 *addr)
+{
+	hw_status status = RET_OK;
+
+	/*Check the input Parameters */
+	CHECK_INPUT_PARAM(baseAddress, 0, RET_BAD_NULL_PARAM,
+			  RES_MMU_BASE + RES_INVALID_INPUT_PARAM);
+
+	/* read values from register */
+	*addr = MMUMMU_FAULT_AD_READ_REGISTER32(baseAddress);
+
+	return status;
+}
+
+hw_status hw_mmu_ttb_set(const void __iomem *baseAddress, u32 TTBPhysAddr)
+{
+	hw_status status = RET_OK;
+	u32 load_ttb;
+
+	/*Check the input Parameters */
+	CHECK_INPUT_PARAM(baseAddress, 0, RET_BAD_NULL_PARAM,
+			  RES_MMU_BASE + RES_INVALID_INPUT_PARAM);
+
+	load_ttb = TTBPhysAddr & ~0x7FUL;
+	/* write values to register */
+	MMUMMU_TTB_WRITE_REGISTER32(baseAddress, load_ttb);
+
+	return status;
+}
+
+hw_status hw_mmu_twl_enable(const void __iomem *baseAddress)
+{
+	hw_status status = RET_OK;
+
+	MMUMMU_CNTLTWL_ENABLE_WRITE32(baseAddress, HW_SET);
+
+	return status;
+}
+
+hw_status hw_mmu_twl_disable(const void __iomem *baseAddress)
+{
+	hw_status status = RET_OK;
+
+	MMUMMU_CNTLTWL_ENABLE_WRITE32(baseAddress, HW_CLEAR);
+
+	return status;
+}
+
+hw_status hw_mmu_tlb_flush(const void __iomem *baseAddress, u32 virtualAddr,
+			   u32 pageSize)
+{
+	hw_status status = RET_OK;
+	u32 virtual_addr_tag;
+	enum hw_mmu_page_size_t pg_size_bits;
+
+	switch (pageSize) {
+	case HW_PAGE_SIZE4KB:
+		pg_size_bits = HW_MMU_SMALL_PAGE;
+		break;
+
+	case HW_PAGE_SIZE64KB:
+		pg_size_bits = HW_MMU_LARGE_PAGE;
+		break;
+
+	case HW_PAGE_SIZE1MB:
+		pg_size_bits = HW_MMU_SECTION;
+		break;
+
+	case HW_PAGE_SIZE16MB:
+		pg_size_bits = HW_MMU_SUPERSECTION;
+		break;
+
+	default:
+		return RET_FAIL;
+	}
+
+	/* Generate the 20-bit tag from virtual address */
+	virtual_addr_tag = ((virtualAddr & MMU_ADDR_MASK) >> 12);
+
+	mmu_set_cam_entry(baseAddress, pg_size_bits, 0, 0, virtual_addr_tag);
+
+	mmu_flush_entry(baseAddress);
+
+	return status;
+}
+
+hw_status hw_mmu_tlb_add(const void __iomem *baseAddress,
+			 u32 physicalAddr,
+			 u32 virtualAddr,
+			 u32 pageSize,
+			 u32 entryNum,
+			 struct hw_mmu_map_attrs_t *map_attrs,
+			 s8 preservedBit, s8 validBit)
+{
+	hw_status status = RET_OK;
+	u32 lock_reg;
+	u32 virtual_addr_tag;
+	enum hw_mmu_page_size_t mmu_pg_size;
+
+	/*Check the input Parameters */
+	CHECK_INPUT_PARAM(baseAddress, 0, RET_BAD_NULL_PARAM,
+			  RES_MMU_BASE + RES_INVALID_INPUT_PARAM);
+	CHECK_INPUT_RANGE_MIN0(pageSize, MMU_PAGE_MAX, RET_PARAM_OUT_OF_RANGE,
+			       RES_MMU_BASE + RES_INVALID_INPUT_PARAM);
+	CHECK_INPUT_RANGE_MIN0(map_attrs->element_size, MMU_ELEMENTSIZE_MAX,
+			       RET_PARAM_OUT_OF_RANGE, RES_MMU_BASE +
+			       RES_INVALID_INPUT_PARAM);
+
+	switch (pageSize) {
+	case HW_PAGE_SIZE4KB:
+		mmu_pg_size = HW_MMU_SMALL_PAGE;
+		break;
+
+	case HW_PAGE_SIZE64KB:
+		mmu_pg_size = HW_MMU_LARGE_PAGE;
+		break;
+
+	case HW_PAGE_SIZE1MB:
+		mmu_pg_size = HW_MMU_SECTION;
+		break;
+
+	case HW_PAGE_SIZE16MB:
+		mmu_pg_size = HW_MMU_SUPERSECTION;
+		break;
+
+	default:
+		return RET_FAIL;
+	}
+
+	lock_reg = MMUMMU_LOCK_READ_REGISTER32(baseAddress);
+
+	/* Generate the 20-bit tag from virtual address */
+	virtual_addr_tag = ((virtualAddr & MMU_ADDR_MASK) >> 12);
+
+	/* Write the fields in the CAM Entry Register */
+	mmu_set_cam_entry(baseAddress, mmu_pg_size, preservedBit, validBit,
+			  virtual_addr_tag);
+
+	/* Write the different fields of the RAM Entry Register */
+	/* endianism of the page,Element Size of the page (8, 16, 32, 64 bit) */
+	mmu_set_ram_entry(baseAddress, physicalAddr, map_attrs->endianism,
+			  map_attrs->element_size, map_attrs->mixed_size);
+
+	/* Update the MMU Lock Register */
+	/* currentVictim between lockedBaseValue and (MMU_Entries_Number - 1) */
+	MMUMMU_LOCK_CURRENT_VICTIM_WRITE32(baseAddress, entryNum);
+
+	/* Enable loading of an entry in TLB by writing 1
+	   into LD_TLB_REG register */
+	MMUMMU_LD_TLB_WRITE_REGISTER32(baseAddress, MMU_LOAD_TLB);
+
+	MMUMMU_LOCK_WRITE_REGISTER32(baseAddress, lock_reg);
+
+	return status;
+}
+
+hw_status hw_mmu_pte_set(const u32 pg_tbl_va,
+			 u32 physicalAddr,
+			 u32 virtualAddr,
+			 u32 pageSize, struct hw_mmu_map_attrs_t *map_attrs)
+{
+	hw_status status = RET_OK;
+	u32 pte_addr, pte_val;
+	s32 num_entries = 1;
+
+	switch (pageSize) {
+	case HW_PAGE_SIZE4KB:
+		pte_addr = hw_mmu_pte_addr_l2(pg_tbl_va,
+					      virtualAddr &
+					      MMU_SMALL_PAGE_MASK);
+		pte_val =
+		    ((physicalAddr & MMU_SMALL_PAGE_MASK) |
+		     (map_attrs->endianism << 9) | (map_attrs->
+						    element_size << 4) |
+		     (map_attrs->mixed_size << 11) | 2);
+		break;
+
+	case HW_PAGE_SIZE64KB:
+		num_entries = 16;
+		pte_addr = hw_mmu_pte_addr_l2(pg_tbl_va,
+					      virtualAddr &
+					      MMU_LARGE_PAGE_MASK);
+		pte_val =
+		    ((physicalAddr & MMU_LARGE_PAGE_MASK) |
+		     (map_attrs->endianism << 9) | (map_attrs->
+						    element_size << 4) |
+		     (map_attrs->mixed_size << 11) | 1);
+		break;
+
+	case HW_PAGE_SIZE1MB:
+		pte_addr = hw_mmu_pte_addr_l1(pg_tbl_va,
+					      virtualAddr &
+					      MMU_SECTION_ADDR_MASK);
+		pte_val =
+		    ((((physicalAddr & MMU_SECTION_ADDR_MASK) |
+		       (map_attrs->endianism << 15) | (map_attrs->
+						       element_size << 10) |
+		       (map_attrs->mixed_size << 17)) & ~0x40000) | 0x2);
+		break;
+
+	case HW_PAGE_SIZE16MB:
+		num_entries = 16;
+		pte_addr = hw_mmu_pte_addr_l1(pg_tbl_va,
+					      virtualAddr &
+					      MMU_SSECTION_ADDR_MASK);
+		pte_val =
+		    (((physicalAddr & MMU_SSECTION_ADDR_MASK) |
+		      (map_attrs->endianism << 15) | (map_attrs->
+						      element_size << 10) |
+		      (map_attrs->mixed_size << 17)
+		     ) | 0x40000 | 0x2);
+		break;
+
+	case HW_MMU_COARSE_PAGE_SIZE:
+		pte_addr = hw_mmu_pte_addr_l1(pg_tbl_va,
+					      virtualAddr &
+					      MMU_SECTION_ADDR_MASK);
+		pte_val = (physicalAddr & MMU_PAGE_TABLE_MASK) | 1;
+		break;
+
+	default:
+		return RET_FAIL;
+	}
+
+	while (--num_entries >= 0)
+		((u32 *) pte_addr)[num_entries] = pte_val;
+
+	return status;
+}
+
+hw_status hw_mmu_pte_clear(const u32 pg_tbl_va, u32 virtualAddr, u32 page_size)
+{
+	hw_status status = RET_OK;
+	u32 pte_addr;
+	s32 num_entries = 1;
+
+	switch (page_size) {
+	case HW_PAGE_SIZE4KB:
+		pte_addr = hw_mmu_pte_addr_l2(pg_tbl_va,
+					      virtualAddr &
+					      MMU_SMALL_PAGE_MASK);
+		break;
+
+	case HW_PAGE_SIZE64KB:
+		num_entries = 16;
+		pte_addr = hw_mmu_pte_addr_l2(pg_tbl_va,
+					      virtualAddr &
+					      MMU_LARGE_PAGE_MASK);
+		break;
+
+	case HW_PAGE_SIZE1MB:
+	case HW_MMU_COARSE_PAGE_SIZE:
+		pte_addr = hw_mmu_pte_addr_l1(pg_tbl_va,
+					      virtualAddr &
+					      MMU_SECTION_ADDR_MASK);
+		break;
+
+	case HW_PAGE_SIZE16MB:
+		num_entries = 16;
+		pte_addr = hw_mmu_pte_addr_l1(pg_tbl_va,
+					      virtualAddr &
+					      MMU_SSECTION_ADDR_MASK);
+		break;
+
+	default:
+		return RET_FAIL;
+	}
+
+	while (--num_entries >= 0)
+		((u32 *) pte_addr)[num_entries] = 0;
+
+	return status;
+}
+
+/* mmu_flush_entry */
+static hw_status mmu_flush_entry(const void __iomem *baseAddress)
+{
+	hw_status status = RET_OK;
+	u32 flush_entry_data = 0x1;
+
+	/*Check the input Parameters */
+	CHECK_INPUT_PARAM(baseAddress, 0, RET_BAD_NULL_PARAM,
+			  RES_MMU_BASE + RES_INVALID_INPUT_PARAM);
+
+	/* write values to register */
+	MMUMMU_FLUSH_ENTRY_WRITE_REGISTER32(baseAddress, flush_entry_data);
+
+	return status;
+}
+
+/* mmu_set_cam_entry */
+static hw_status mmu_set_cam_entry(const void __iomem *baseAddress,
+				   const u32 pageSize,
+				   const u32 preservedBit,
+				   const u32 validBit,
+				   const u32 virtual_addr_tag)
+{
+	hw_status status = RET_OK;
+	u32 mmu_cam_reg;
+
+	/*Check the input Parameters */
+	CHECK_INPUT_PARAM(baseAddress, 0, RET_BAD_NULL_PARAM,
+			  RES_MMU_BASE + RES_INVALID_INPUT_PARAM);
+
+	mmu_cam_reg = (virtual_addr_tag << 12);
+	mmu_cam_reg = (mmu_cam_reg) | (pageSize) | (validBit << 2) |
+	    (preservedBit << 3);
+
+	/* write values to register */
+	MMUMMU_CAM_WRITE_REGISTER32(baseAddress, mmu_cam_reg);
+
+	return status;
+}
+
+/* mmu_set_ram_entry */
+static hw_status mmu_set_ram_entry(const void __iomem *baseAddress,
+				   const u32 physicalAddr,
+				   enum hw_endianism_t endianism,
+				   enum hw_element_size_t element_size,
+				   enum hw_mmu_mixed_size_t mixed_size)
+{
+	hw_status status = RET_OK;
+	u32 mmu_ram_reg;
+
+	/*Check the input Parameters */
+	CHECK_INPUT_PARAM(baseAddress, 0, RET_BAD_NULL_PARAM,
+			  RES_MMU_BASE + RES_INVALID_INPUT_PARAM);
+	CHECK_INPUT_RANGE_MIN0(element_size, MMU_ELEMENTSIZE_MAX,
+			       RET_PARAM_OUT_OF_RANGE, RES_MMU_BASE +
+			       RES_INVALID_INPUT_PARAM);
+
+	mmu_ram_reg = (physicalAddr & MMU_ADDR_MASK);
+	mmu_ram_reg = (mmu_ram_reg) | ((endianism << 9) | (element_size << 7) |
+				       (mixed_size << 6));
+
+	/* write values to register */
+	MMUMMU_RAM_WRITE_REGISTER32(baseAddress, mmu_ram_reg);
+
+	return status;
+
+}
diff --git a/drivers/staging/tidspbridge/hw/hw_mmu.h b/drivers/staging/tidspbridge/hw/hw_mmu.h
new file mode 100644
index 0000000..9b13468
--- /dev/null
+++ b/drivers/staging/tidspbridge/hw/hw_mmu.h
@@ -0,0 +1,161 @@
+/*
+ * hw_mmu.h
+ *
+ * DSP-BIOS Bridge driver support functions for TI OMAP processors.
+ *
+ * MMU types and API declarations
+ *
+ * Copyright (C) 2007 Texas Instruments, Inc.
+ *
+ * This package is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+#ifndef _HW_MMU_H
+#define _HW_MMU_H
+
+#include <linux/types.h>
+
+/* Bitmasks for interrupt sources */
+#define HW_MMU_TRANSLATION_FAULT   0x2
+#define HW_MMU_ALL_INTERRUPTS      0x1F
+
+#define HW_MMU_COARSE_PAGE_SIZE 0x400
+
+/* hw_mmu_mixed_size_t:  Enumerated Type used to specify whether to follow
+			CPU/TLB Element size */
+enum hw_mmu_mixed_size_t {
+	HW_MMU_TLBES,
+	HW_MMU_CPUES
+};
+
+/* hw_mmu_map_attrs_t:  Struct containing MMU mapping attributes */
+struct hw_mmu_map_attrs_t {
+	enum hw_endianism_t endianism;
+	enum hw_element_size_t element_size;
+	enum hw_mmu_mixed_size_t mixed_size;
+	bool donotlockmpupage;
+};
+
+extern hw_status hw_mmu_enable(const void __iomem *baseAddress);
+
+extern hw_status hw_mmu_disable(const void __iomem *baseAddress);
+
+extern hw_status hw_mmu_num_locked_set(const void __iomem *baseAddress,
+				       u32 numLockedEntries);
+
+extern hw_status hw_mmu_victim_num_set(const void __iomem *baseAddress,
+				       u32 victimEntryNum);
+
+/* For MMU faults */
+extern hw_status hw_mmu_event_ack(const void __iomem *baseAddress,
+				  u32 irqMask);
+
+extern hw_status hw_mmu_event_disable(const void __iomem *baseAddress,
+				      u32 irqMask);
+
+extern hw_status hw_mmu_event_enable(const void __iomem *baseAddress,
+				     u32 irqMask);
+
+extern hw_status hw_mmu_event_status(const void __iomem *baseAddress,
+				     u32 *irqMask);
+
+extern hw_status hw_mmu_fault_addr_read(const void __iomem *baseAddress,
+					u32 *addr);
+
+/* Set the TT base address */
+extern hw_status hw_mmu_ttb_set(const void __iomem *baseAddress,
+				u32 TTBPhysAddr);
+
+extern hw_status hw_mmu_twl_enable(const void __iomem *baseAddress);
+
+extern hw_status hw_mmu_twl_disable(const void __iomem *baseAddress);
+
+extern hw_status hw_mmu_tlb_flush(const void __iomem *baseAddress,
+				  u32 virtualAddr, u32 pageSize);
+
+extern hw_status hw_mmu_tlb_add(const void __iomem *baseAddress,
+				u32 physicalAddr,
+				u32 virtualAddr,
+				u32 pageSize,
+				u32 entryNum,
+				struct hw_mmu_map_attrs_t *map_attrs,
+				s8 preservedBit, s8 validBit);
+
+/* For PTEs */
+extern hw_status hw_mmu_pte_set(const u32 pg_tbl_va,
+				u32 physicalAddr,
+				u32 virtualAddr,
+				u32 pageSize,
+				struct hw_mmu_map_attrs_t *map_attrs);
+
+extern hw_status hw_mmu_pte_clear(const u32 pg_tbl_va,
+				  u32 page_size, u32 virtualAddr);
+
+static inline u32 hw_mmu_pte_addr_l1(u32 L1_base, u32 va)
+{
+	u32 pte_addr;
+	u32 va31_to20;
+
+	va31_to20 = va >> (20 - 2);	/* Left-shift by 2 here itself */
+	va31_to20 &= 0xFFFFFFFCUL;
+	pte_addr = L1_base + va31_to20;
+
+	return pte_addr;
+}
+
+static inline u32 hw_mmu_pte_addr_l2(u32 L2_base, u32 va)
+{
+	u32 pte_addr;
+
+	pte_addr = (L2_base & 0xFFFFFC00) | ((va >> 10) & 0x3FC);
+
+	return pte_addr;
+}
+
+static inline u32 hw_mmu_pte_coarse_l1(u32 pte_val)
+{
+	u32 pte_coarse;
+
+	pte_coarse = pte_val & 0xFFFFFC00;
+
+	return pte_coarse;
+}
+
+static inline u32 hw_mmu_pte_size_l1(u32 pte_val)
+{
+	u32 pte_size = 0;
+
+	if ((pte_val & 0x3) == 0x1) {
+		/* Points to L2 PT */
+		pte_size = HW_MMU_COARSE_PAGE_SIZE;
+	}
+
+	if ((pte_val & 0x3) == 0x2) {
+		if (pte_val & (1 << 18))
+			pte_size = HW_PAGE_SIZE16MB;
+		else
+			pte_size = HW_PAGE_SIZE1MB;
+	}
+
+	return pte_size;
+}
+
+static inline u32 hw_mmu_pte_size_l2(u32 pte_val)
+{
+	u32 pte_size = 0;
+
+	if (pte_val & 0x2)
+		pte_size = HW_PAGE_SIZE4KB;
+	else if (pte_val & 0x1)
+		pte_size = HW_PAGE_SIZE64KB;
+
+	return pte_size;
+}
+
+#endif /* _HW_MMU_H */
-- 
1.7.0.4