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TARGET_ARM_MPS2_M7/core_caFunc.h@143:86740a56073b, 2017-05-26 (annotated)

Committer:
AnnaBridge
Date:
Fri May 26 12:30:20 2017 +0100
Revision:
143:86740a56073b
Parent:
130:d75b3fe1f5cb 
Release 143 of the mbed library.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Kojto 102:da0ca467f8b5 1 /**************************************************************************//**
Kojto 102:da0ca467f8b5 2 * @file core_caFunc.h
Kojto 102:da0ca467f8b5 3 * @brief CMSIS Cortex-A Core Function Access Header File
Kojto 102:da0ca467f8b5 4 * @version V3.10
Kojto 108:34e6b704fe68 5 * @date 30 Oct 2013
Kojto 102:da0ca467f8b5 6 *
Kojto 102:da0ca467f8b5 7 * @note
Kojto 102:da0ca467f8b5 8 *
Kojto 102:da0ca467f8b5 9 ******************************************************************************/
Kojto 108:34e6b704fe68 10 /* Copyright (c) 2009 - 2013 ARM LIMITED
Kojto 102:da0ca467f8b5 11
Kojto 102:da0ca467f8b5 12 All rights reserved.
Kojto 102:da0ca467f8b5 13 Redistribution and use in source and binary forms, with or without
Kojto 102:da0ca467f8b5 14 modification, are permitted provided that the following conditions are met:
Kojto 102:da0ca467f8b5 15 - Redistributions of source code must retain the above copyright
Kojto 102:da0ca467f8b5 16 notice, this list of conditions and the following disclaimer.
Kojto 102:da0ca467f8b5 17 - Redistributions in binary form must reproduce the above copyright
Kojto 102:da0ca467f8b5 18 notice, this list of conditions and the following disclaimer in the
Kojto 102:da0ca467f8b5 19 documentation and/or other materials provided with the distribution.
Kojto 102:da0ca467f8b5 20 - Neither the name of ARM nor the names of its contributors may be used
Kojto 102:da0ca467f8b5 21 to endorse or promote products derived from this software without
Kojto 102:da0ca467f8b5 22 specific prior written permission.
Kojto 102:da0ca467f8b5 23 *
Kojto 102:da0ca467f8b5 24 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
Kojto 102:da0ca467f8b5 25 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
Kojto 102:da0ca467f8b5 26 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
Kojto 102:da0ca467f8b5 27 ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
Kojto 102:da0ca467f8b5 28 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
Kojto 102:da0ca467f8b5 29 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
Kojto 102:da0ca467f8b5 30 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
Kojto 102:da0ca467f8b5 31 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
Kojto 102:da0ca467f8b5 32 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
Kojto 102:da0ca467f8b5 33 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
Kojto 102:da0ca467f8b5 34 POSSIBILITY OF SUCH DAMAGE.
Kojto 102:da0ca467f8b5 35 ---------------------------------------------------------------------------*/
Kojto 102:da0ca467f8b5 36
Kojto 102:da0ca467f8b5 37
Kojto 102:da0ca467f8b5 38 #ifndef __CORE_CAFUNC_H__
Kojto 102:da0ca467f8b5 39 #define __CORE_CAFUNC_H__
Kojto 102:da0ca467f8b5 40
Kojto 102:da0ca467f8b5 41
Kojto 102:da0ca467f8b5 42 /* ########################### Core Function Access ########################### */
Kojto 102:da0ca467f8b5 43 /** \ingroup CMSIS_Core_FunctionInterface
Kojto 102:da0ca467f8b5 44 \defgroup CMSIS_Core_RegAccFunctions CMSIS Core Register Access Functions
Kojto 102:da0ca467f8b5 45 @{
Kojto 102:da0ca467f8b5 46 */
Kojto 102:da0ca467f8b5 47
Kojto 102:da0ca467f8b5 48 #if defined ( __CC_ARM ) /*------------------RealView Compiler -----------------*/
Kojto 102:da0ca467f8b5 49 /* ARM armcc specific functions */
Kojto 102:da0ca467f8b5 50
Kojto 102:da0ca467f8b5 51 #if (__ARMCC_VERSION < 400677)
Kojto 102:da0ca467f8b5 52 #error "Please use ARM Compiler Toolchain V4.0.677 or later!"
Kojto 102:da0ca467f8b5 53 #endif
Kojto 102:da0ca467f8b5 54
Kojto 102:da0ca467f8b5 55 #define MODE_USR 0x10
Kojto 102:da0ca467f8b5 56 #define MODE_FIQ 0x11
Kojto 102:da0ca467f8b5 57 #define MODE_IRQ 0x12
Kojto 102:da0ca467f8b5 58 #define MODE_SVC 0x13
Kojto 102:da0ca467f8b5 59 #define MODE_MON 0x16
Kojto 102:da0ca467f8b5 60 #define MODE_ABT 0x17
Kojto 102:da0ca467f8b5 61 #define MODE_HYP 0x1A
Kojto 102:da0ca467f8b5 62 #define MODE_UND 0x1B
Kojto 102:da0ca467f8b5 63 #define MODE_SYS 0x1F
Kojto 102:da0ca467f8b5 64
Kojto 102:da0ca467f8b5 65 /** \brief Get APSR Register
Kojto 102:da0ca467f8b5 66
Kojto 102:da0ca467f8b5 67 This function returns the content of the APSR Register.
Kojto 102:da0ca467f8b5 68
Kojto 102:da0ca467f8b5 69 \return APSR Register value
Kojto 102:da0ca467f8b5 70 */
Kojto 102:da0ca467f8b5 71 __STATIC_INLINE uint32_t __get_APSR(void)
Kojto 102:da0ca467f8b5 72 {
Kojto 102:da0ca467f8b5 73 register uint32_t __regAPSR __ASM("apsr");
Kojto 102:da0ca467f8b5 74 return(__regAPSR);
Kojto 102:da0ca467f8b5 75 }
Kojto 102:da0ca467f8b5 76
Kojto 102:da0ca467f8b5 77
Kojto 102:da0ca467f8b5 78 /** \brief Get CPSR Register
Kojto 102:da0ca467f8b5 79
Kojto 102:da0ca467f8b5 80 This function returns the content of the CPSR Register.
Kojto 102:da0ca467f8b5 81
Kojto 102:da0ca467f8b5 82 \return CPSR Register value
Kojto 102:da0ca467f8b5 83 */
Kojto 102:da0ca467f8b5 84 __STATIC_INLINE uint32_t __get_CPSR(void)
Kojto 102:da0ca467f8b5 85 {
Kojto 102:da0ca467f8b5 86 register uint32_t __regCPSR __ASM("cpsr");
Kojto 102:da0ca467f8b5 87 return(__regCPSR);
Kojto 102:da0ca467f8b5 88 }
Kojto 102:da0ca467f8b5 89
Kojto 102:da0ca467f8b5 90 /** \brief Set Stack Pointer
Kojto 102:da0ca467f8b5 91
Kojto 102:da0ca467f8b5 92 This function assigns the given value to the current stack pointer.
Kojto 102:da0ca467f8b5 93
Kojto 102:da0ca467f8b5 94 \param [in] topOfStack Stack Pointer value to set
Kojto 102:da0ca467f8b5 95 */
Kojto 102:da0ca467f8b5 96 register uint32_t __regSP __ASM("sp");
Kojto 102:da0ca467f8b5 97 __STATIC_INLINE void __set_SP(uint32_t topOfStack)
Kojto 102:da0ca467f8b5 98 {
Kojto 102:da0ca467f8b5 99 __regSP = topOfStack;
Kojto 102:da0ca467f8b5 100 }
Kojto 102:da0ca467f8b5 101
Kojto 102:da0ca467f8b5 102
Kojto 102:da0ca467f8b5 103 /** \brief Get link register
Kojto 102:da0ca467f8b5 104
Kojto 102:da0ca467f8b5 105 This function returns the value of the link register
Kojto 102:da0ca467f8b5 106
Kojto 102:da0ca467f8b5 107 \return Value of link register
Kojto 102:da0ca467f8b5 108 */
Kojto 102:da0ca467f8b5 109 register uint32_t __reglr __ASM("lr");
Kojto 102:da0ca467f8b5 110 __STATIC_INLINE uint32_t __get_LR(void)
Kojto 102:da0ca467f8b5 111 {
Kojto 102:da0ca467f8b5 112 return(__reglr);
Kojto 102:da0ca467f8b5 113 }
Kojto 102:da0ca467f8b5 114
Kojto 102:da0ca467f8b5 115 /** \brief Set link register
Kojto 102:da0ca467f8b5 116
Kojto 102:da0ca467f8b5 117 This function sets the value of the link register
Kojto 102:da0ca467f8b5 118
Kojto 102:da0ca467f8b5 119 \param [in] lr LR value to set
Kojto 102:da0ca467f8b5 120 */
Kojto 102:da0ca467f8b5 121 __STATIC_INLINE void __set_LR(uint32_t lr)
Kojto 102:da0ca467f8b5 122 {
Kojto 102:da0ca467f8b5 123 __reglr = lr;
Kojto 102:da0ca467f8b5 124 }
Kojto 102:da0ca467f8b5 125
Kojto 102:da0ca467f8b5 126 /** \brief Set Process Stack Pointer
Kojto 102:da0ca467f8b5 127
Kojto 102:da0ca467f8b5 128 This function assigns the given value to the USR/SYS Stack Pointer (PSP).
Kojto 102:da0ca467f8b5 129
Kojto 102:da0ca467f8b5 130 \param [in] topOfProcStack USR/SYS Stack Pointer value to set
Kojto 102:da0ca467f8b5 131 */
Kojto 102:da0ca467f8b5 132 __STATIC_ASM void __set_PSP(uint32_t topOfProcStack)
Kojto 102:da0ca467f8b5 133 {
Kojto 102:da0ca467f8b5 134 ARM
Kojto 102:da0ca467f8b5 135 PRESERVE8
Kojto 102:da0ca467f8b5 136
Kojto 102:da0ca467f8b5 137 BIC R0, R0, #7 ;ensure stack is 8-byte aligned
Kojto 102:da0ca467f8b5 138 MRS R1, CPSR
Kojto 102:da0ca467f8b5 139 CPS #MODE_SYS ;no effect in USR mode
Kojto 102:da0ca467f8b5 140 MOV SP, R0
Kojto 102:da0ca467f8b5 141 MSR CPSR_c, R1 ;no effect in USR mode
Kojto 102:da0ca467f8b5 142 ISB
Kojto 102:da0ca467f8b5 143 BX LR
Kojto 102:da0ca467f8b5 144
Kojto 102:da0ca467f8b5 145 }
Kojto 102:da0ca467f8b5 146
Kojto 102:da0ca467f8b5 147 /** \brief Set User Mode
Kojto 102:da0ca467f8b5 148
Kojto 102:da0ca467f8b5 149 This function changes the processor state to User Mode
Kojto 102:da0ca467f8b5 150 */
Kojto 102:da0ca467f8b5 151 __STATIC_ASM void __set_CPS_USR(void)
Kojto 102:da0ca467f8b5 152 {
Kojto 102:da0ca467f8b5 153 ARM
Kojto 102:da0ca467f8b5 154
Kojto 102:da0ca467f8b5 155 CPS #MODE_USR
Kojto 102:da0ca467f8b5 156 BX LR
Kojto 102:da0ca467f8b5 157 }
Kojto 102:da0ca467f8b5 158
Kojto 102:da0ca467f8b5 159
Kojto 102:da0ca467f8b5 160 /** \brief Enable FIQ
Kojto 102:da0ca467f8b5 161
Kojto 102:da0ca467f8b5 162 This function enables FIQ interrupts by clearing the F-bit in the CPSR.
Kojto 102:da0ca467f8b5 163 Can only be executed in Privileged modes.
Kojto 102:da0ca467f8b5 164 */
Kojto 102:da0ca467f8b5 165 #define __enable_fault_irq __enable_fiq
Kojto 102:da0ca467f8b5 166
Kojto 102:da0ca467f8b5 167
Kojto 102:da0ca467f8b5 168 /** \brief Disable FIQ
Kojto 102:da0ca467f8b5 169
Kojto 102:da0ca467f8b5 170 This function disables FIQ interrupts by setting the F-bit in the CPSR.
Kojto 102:da0ca467f8b5 171 Can only be executed in Privileged modes.
Kojto 102:da0ca467f8b5 172 */
Kojto 102:da0ca467f8b5 173 #define __disable_fault_irq __disable_fiq
Kojto 102:da0ca467f8b5 174
Kojto 102:da0ca467f8b5 175
Kojto 102:da0ca467f8b5 176 /** \brief Get FPSCR
Kojto 102:da0ca467f8b5 177
Kojto 102:da0ca467f8b5 178 This function returns the current value of the Floating Point Status/Control register.
Kojto 102:da0ca467f8b5 179
Kojto 102:da0ca467f8b5 180 \return Floating Point Status/Control register value
Kojto 102:da0ca467f8b5 181 */
Kojto 102:da0ca467f8b5 182 __STATIC_INLINE uint32_t __get_FPSCR(void)
Kojto 102:da0ca467f8b5 183 {
Kojto 102:da0ca467f8b5 184 #if (__FPU_PRESENT == 1) && (__FPU_USED == 1)
Kojto 102:da0ca467f8b5 185 register uint32_t __regfpscr __ASM("fpscr");
Kojto 102:da0ca467f8b5 186 return(__regfpscr);
Kojto 102:da0ca467f8b5 187 #else
Kojto 102:da0ca467f8b5 188 return(0);
Kojto 102:da0ca467f8b5 189 #endif
Kojto 102:da0ca467f8b5 190 }
Kojto 102:da0ca467f8b5 191
Kojto 102:da0ca467f8b5 192
Kojto 102:da0ca467f8b5 193 /** \brief Set FPSCR
Kojto 102:da0ca467f8b5 194
Kojto 102:da0ca467f8b5 195 This function assigns the given value to the Floating Point Status/Control register.
Kojto 102:da0ca467f8b5 196
Kojto 102:da0ca467f8b5 197 \param [in] fpscr Floating Point Status/Control value to set
Kojto 102:da0ca467f8b5 198 */
Kojto 102:da0ca467f8b5 199 __STATIC_INLINE void __set_FPSCR(uint32_t fpscr)
Kojto 102:da0ca467f8b5 200 {
Kojto 102:da0ca467f8b5 201 #if (__FPU_PRESENT == 1) && (__FPU_USED == 1)
Kojto 102:da0ca467f8b5 202 register uint32_t __regfpscr __ASM("fpscr");
Kojto 102:da0ca467f8b5 203 __regfpscr = (fpscr);
Kojto 102:da0ca467f8b5 204 #endif
Kojto 102:da0ca467f8b5 205 }
Kojto 102:da0ca467f8b5 206
Kojto 102:da0ca467f8b5 207 /** \brief Get FPEXC
Kojto 102:da0ca467f8b5 208
Kojto 102:da0ca467f8b5 209 This function returns the current value of the Floating Point Exception Control register.
Kojto 102:da0ca467f8b5 210
Kojto 102:da0ca467f8b5 211 \return Floating Point Exception Control register value
Kojto 102:da0ca467f8b5 212 */
Kojto 102:da0ca467f8b5 213 __STATIC_INLINE uint32_t __get_FPEXC(void)
Kojto 102:da0ca467f8b5 214 {
Kojto 102:da0ca467f8b5 215 #if (__FPU_PRESENT == 1)
Kojto 102:da0ca467f8b5 216 register uint32_t __regfpexc __ASM("fpexc");
Kojto 102:da0ca467f8b5 217 return(__regfpexc);
Kojto 102:da0ca467f8b5 218 #else
Kojto 102:da0ca467f8b5 219 return(0);
Kojto 102:da0ca467f8b5 220 #endif
Kojto 102:da0ca467f8b5 221 }
Kojto 102:da0ca467f8b5 222
Kojto 102:da0ca467f8b5 223
Kojto 102:da0ca467f8b5 224 /** \brief Set FPEXC
Kojto 102:da0ca467f8b5 225
Kojto 102:da0ca467f8b5 226 This function assigns the given value to the Floating Point Exception Control register.
Kojto 102:da0ca467f8b5 227
Kojto 102:da0ca467f8b5 228 \param [in] fpscr Floating Point Exception Control value to set
Kojto 102:da0ca467f8b5 229 */
Kojto 102:da0ca467f8b5 230 __STATIC_INLINE void __set_FPEXC(uint32_t fpexc)
Kojto 102:da0ca467f8b5 231 {
Kojto 102:da0ca467f8b5 232 #if (__FPU_PRESENT == 1)
Kojto 102:da0ca467f8b5 233 register uint32_t __regfpexc __ASM("fpexc");
Kojto 102:da0ca467f8b5 234 __regfpexc = (fpexc);
Kojto 102:da0ca467f8b5 235 #endif
Kojto 102:da0ca467f8b5 236 }
Kojto 102:da0ca467f8b5 237
Kojto 102:da0ca467f8b5 238 /** \brief Get CPACR
Kojto 102:da0ca467f8b5 239
Kojto 102:da0ca467f8b5 240 This function returns the current value of the Coprocessor Access Control register.
Kojto 102:da0ca467f8b5 241
Kojto 102:da0ca467f8b5 242 \return Coprocessor Access Control register value
Kojto 102:da0ca467f8b5 243 */
Kojto 102:da0ca467f8b5 244 __STATIC_INLINE uint32_t __get_CPACR(void)
Kojto 102:da0ca467f8b5 245 {
Kojto 102:da0ca467f8b5 246 register uint32_t __regCPACR __ASM("cp15:0:c1:c0:2");
Kojto 102:da0ca467f8b5 247 return __regCPACR;
Kojto 102:da0ca467f8b5 248 }
Kojto 102:da0ca467f8b5 249
Kojto 102:da0ca467f8b5 250 /** \brief Set CPACR
Kojto 102:da0ca467f8b5 251
Kojto 102:da0ca467f8b5 252 This function assigns the given value to the Coprocessor Access Control register.
Kojto 102:da0ca467f8b5 253
Kojto 108:34e6b704fe68 254 \param [in] cpacr Coprocessor Acccess Control value to set
Kojto 102:da0ca467f8b5 255 */
Kojto 102:da0ca467f8b5 256 __STATIC_INLINE void __set_CPACR(uint32_t cpacr)
Kojto 102:da0ca467f8b5 257 {
Kojto 102:da0ca467f8b5 258 register uint32_t __regCPACR __ASM("cp15:0:c1:c0:2");
Kojto 102:da0ca467f8b5 259 __regCPACR = cpacr;
Kojto 102:da0ca467f8b5 260 __ISB();
Kojto 102:da0ca467f8b5 261 }
Kojto 102:da0ca467f8b5 262
Kojto 102:da0ca467f8b5 263 /** \brief Get CBAR
Kojto 102:da0ca467f8b5 264
Kojto 102:da0ca467f8b5 265 This function returns the value of the Configuration Base Address register.
Kojto 102:da0ca467f8b5 266
Kojto 102:da0ca467f8b5 267 \return Configuration Base Address register value
Kojto 102:da0ca467f8b5 268 */
Kojto 102:da0ca467f8b5 269 __STATIC_INLINE uint32_t __get_CBAR() {
Kojto 102:da0ca467f8b5 270 register uint32_t __regCBAR __ASM("cp15:4:c15:c0:0");
Kojto 102:da0ca467f8b5 271 return(__regCBAR);
Kojto 102:da0ca467f8b5 272 }
Kojto 102:da0ca467f8b5 273
Kojto 102:da0ca467f8b5 274 /** \brief Get TTBR0
Kojto 102:da0ca467f8b5 275
Kojto 108:34e6b704fe68 276 This function returns the value of the Translation Table Base Register 0.
Kojto 102:da0ca467f8b5 277
Kojto 102:da0ca467f8b5 278 \return Translation Table Base Register 0 value
Kojto 102:da0ca467f8b5 279 */
Kojto 102:da0ca467f8b5 280 __STATIC_INLINE uint32_t __get_TTBR0() {
Kojto 102:da0ca467f8b5 281 register uint32_t __regTTBR0 __ASM("cp15:0:c2:c0:0");
Kojto 102:da0ca467f8b5 282 return(__regTTBR0);
Kojto 102:da0ca467f8b5 283 }
Kojto 102:da0ca467f8b5 284
Kojto 102:da0ca467f8b5 285 /** \brief Set TTBR0
Kojto 102:da0ca467f8b5 286
Kojto 108:34e6b704fe68 287 This function assigns the given value to the Translation Table Base Register 0.
Kojto 102:da0ca467f8b5 288
Kojto 102:da0ca467f8b5 289 \param [in] ttbr0 Translation Table Base Register 0 value to set
Kojto 102:da0ca467f8b5 290 */
Kojto 102:da0ca467f8b5 291 __STATIC_INLINE void __set_TTBR0(uint32_t ttbr0) {
Kojto 102:da0ca467f8b5 292 register uint32_t __regTTBR0 __ASM("cp15:0:c2:c0:0");
Kojto 102:da0ca467f8b5 293 __regTTBR0 = ttbr0;
Kojto 102:da0ca467f8b5 294 __ISB();
Kojto 102:da0ca467f8b5 295 }
Kojto 102:da0ca467f8b5 296
Kojto 102:da0ca467f8b5 297 /** \brief Get DACR
Kojto 102:da0ca467f8b5 298
Kojto 102:da0ca467f8b5 299 This function returns the value of the Domain Access Control Register.
Kojto 102:da0ca467f8b5 300
Kojto 102:da0ca467f8b5 301 \return Domain Access Control Register value
Kojto 102:da0ca467f8b5 302 */
Kojto 102:da0ca467f8b5 303 __STATIC_INLINE uint32_t __get_DACR() {
Kojto 102:da0ca467f8b5 304 register uint32_t __regDACR __ASM("cp15:0:c3:c0:0");
Kojto 102:da0ca467f8b5 305 return(__regDACR);
Kojto 102:da0ca467f8b5 306 }
Kojto 102:da0ca467f8b5 307
Kojto 102:da0ca467f8b5 308 /** \brief Set DACR
Kojto 102:da0ca467f8b5 309
Kojto 108:34e6b704fe68 310 This function assigns the given value to the Domain Access Control Register.
Kojto 102:da0ca467f8b5 311
Kojto 102:da0ca467f8b5 312 \param [in] dacr Domain Access Control Register value to set
Kojto 102:da0ca467f8b5 313 */
Kojto 102:da0ca467f8b5 314 __STATIC_INLINE void __set_DACR(uint32_t dacr) {
Kojto 102:da0ca467f8b5 315 register uint32_t __regDACR __ASM("cp15:0:c3:c0:0");
Kojto 102:da0ca467f8b5 316 __regDACR = dacr;
Kojto 102:da0ca467f8b5 317 __ISB();
Kojto 102:da0ca467f8b5 318 }
Kojto 102:da0ca467f8b5 319
Kojto 102:da0ca467f8b5 320 /******************************** Cache and BTAC enable ****************************************************/
Kojto 102:da0ca467f8b5 321
Kojto 102:da0ca467f8b5 322 /** \brief Set SCTLR
Kojto 102:da0ca467f8b5 323
Kojto 102:da0ca467f8b5 324 This function assigns the given value to the System Control Register.
Kojto 102:da0ca467f8b5 325
Kojto 108:34e6b704fe68 326 \param [in] sctlr System Control Register value to set
Kojto 102:da0ca467f8b5 327 */
Kojto 102:da0ca467f8b5 328 __STATIC_INLINE void __set_SCTLR(uint32_t sctlr)
Kojto 102:da0ca467f8b5 329 {
Kojto 102:da0ca467f8b5 330 register uint32_t __regSCTLR __ASM("cp15:0:c1:c0:0");
Kojto 102:da0ca467f8b5 331 __regSCTLR = sctlr;
Kojto 102:da0ca467f8b5 332 }
Kojto 102:da0ca467f8b5 333
Kojto 102:da0ca467f8b5 334 /** \brief Get SCTLR
Kojto 102:da0ca467f8b5 335
Kojto 102:da0ca467f8b5 336 This function returns the value of the System Control Register.
Kojto 102:da0ca467f8b5 337
Kojto 102:da0ca467f8b5 338 \return System Control Register value
Kojto 102:da0ca467f8b5 339 */
Kojto 102:da0ca467f8b5 340 __STATIC_INLINE uint32_t __get_SCTLR() {
Kojto 102:da0ca467f8b5 341 register uint32_t __regSCTLR __ASM("cp15:0:c1:c0:0");
Kojto 102:da0ca467f8b5 342 return(__regSCTLR);
Kojto 102:da0ca467f8b5 343 }
Kojto 102:da0ca467f8b5 344
Kojto 102:da0ca467f8b5 345 /** \brief Enable Caches
Kojto 102:da0ca467f8b5 346
Kojto 102:da0ca467f8b5 347 Enable Caches
Kojto 102:da0ca467f8b5 348 */
Kojto 102:da0ca467f8b5 349 __STATIC_INLINE void __enable_caches(void) {
Kojto 102:da0ca467f8b5 350 // Set I bit 12 to enable I Cache
Kojto 102:da0ca467f8b5 351 // Set C bit 2 to enable D Cache
Kojto 102:da0ca467f8b5 352 __set_SCTLR( __get_SCTLR() | (1 << 12) | (1 << 2));
Kojto 102:da0ca467f8b5 353 }
Kojto 102:da0ca467f8b5 354
Kojto 102:da0ca467f8b5 355 /** \brief Disable Caches
Kojto 102:da0ca467f8b5 356
Kojto 102:da0ca467f8b5 357 Disable Caches
Kojto 102:da0ca467f8b5 358 */
Kojto 102:da0ca467f8b5 359 __STATIC_INLINE void __disable_caches(void) {
Kojto 102:da0ca467f8b5 360 // Clear I bit 12 to disable I Cache
Kojto 102:da0ca467f8b5 361 // Clear C bit 2 to disable D Cache
Kojto 102:da0ca467f8b5 362 __set_SCTLR( __get_SCTLR() & ~(1 << 12) & ~(1 << 2));
Kojto 102:da0ca467f8b5 363 __ISB();
Kojto 102:da0ca467f8b5 364 }
Kojto 102:da0ca467f8b5 365
Kojto 102:da0ca467f8b5 366 /** \brief Enable BTAC
Kojto 102:da0ca467f8b5 367
Kojto 102:da0ca467f8b5 368 Enable BTAC
Kojto 102:da0ca467f8b5 369 */
Kojto 102:da0ca467f8b5 370 __STATIC_INLINE void __enable_btac(void) {
Kojto 102:da0ca467f8b5 371 // Set Z bit 11 to enable branch prediction
Kojto 102:da0ca467f8b5 372 __set_SCTLR( __get_SCTLR() | (1 << 11));
Kojto 102:da0ca467f8b5 373 __ISB();
Kojto 102:da0ca467f8b5 374 }
Kojto 102:da0ca467f8b5 375
Kojto 102:da0ca467f8b5 376 /** \brief Disable BTAC
Kojto 102:da0ca467f8b5 377
Kojto 102:da0ca467f8b5 378 Disable BTAC
Kojto 102:da0ca467f8b5 379 */
Kojto 102:da0ca467f8b5 380 __STATIC_INLINE void __disable_btac(void) {
Kojto 102:da0ca467f8b5 381 // Clear Z bit 11 to disable branch prediction
Kojto 102:da0ca467f8b5 382 __set_SCTLR( __get_SCTLR() & ~(1 << 11));
Kojto 102:da0ca467f8b5 383 }
Kojto 102:da0ca467f8b5 384
Kojto 102:da0ca467f8b5 385
Kojto 102:da0ca467f8b5 386 /** \brief Enable MMU
Kojto 102:da0ca467f8b5 387
Kojto 102:da0ca467f8b5 388 Enable MMU
Kojto 102:da0ca467f8b5 389 */
Kojto 102:da0ca467f8b5 390 __STATIC_INLINE void __enable_mmu(void) {
Kojto 102:da0ca467f8b5 391 // Set M bit 0 to enable the MMU
Kojto 102:da0ca467f8b5 392 // Set AFE bit to enable simplified access permissions model
Kojto 102:da0ca467f8b5 393 // Clear TRE bit to disable TEX remap and A bit to disable strict alignment fault checking
Kojto 102:da0ca467f8b5 394 __set_SCTLR( (__get_SCTLR() & ~(1 << 28) & ~(1 << 1)) | 1 | (1 << 29));
Kojto 102:da0ca467f8b5 395 __ISB();
Kojto 102:da0ca467f8b5 396 }
Kojto 102:da0ca467f8b5 397
Kojto 108:34e6b704fe68 398 /** \brief Disable MMU
Kojto 102:da0ca467f8b5 399
Kojto 108:34e6b704fe68 400 Disable MMU
Kojto 102:da0ca467f8b5 401 */
Kojto 102:da0ca467f8b5 402 __STATIC_INLINE void __disable_mmu(void) {
Kojto 102:da0ca467f8b5 403 // Clear M bit 0 to disable the MMU
Kojto 102:da0ca467f8b5 404 __set_SCTLR( __get_SCTLR() & ~1);
Kojto 102:da0ca467f8b5 405 __ISB();
Kojto 102:da0ca467f8b5 406 }
Kojto 102:da0ca467f8b5 407
Kojto 102:da0ca467f8b5 408 /******************************** TLB maintenance operations ************************************************/
Kojto 102:da0ca467f8b5 409 /** \brief Invalidate the whole tlb
Kojto 102:da0ca467f8b5 410
Kojto 102:da0ca467f8b5 411 TLBIALL. Invalidate the whole tlb
Kojto 102:da0ca467f8b5 412 */
Kojto 102:da0ca467f8b5 413
Kojto 102:da0ca467f8b5 414 __STATIC_INLINE void __ca9u_inv_tlb_all(void) {
Kojto 102:da0ca467f8b5 415 register uint32_t __TLBIALL __ASM("cp15:0:c8:c7:0");
Kojto 102:da0ca467f8b5 416 __TLBIALL = 0;
Kojto 102:da0ca467f8b5 417 __DSB();
Kojto 102:da0ca467f8b5 418 __ISB();
Kojto 102:da0ca467f8b5 419 }
Kojto 102:da0ca467f8b5 420
Kojto 102:da0ca467f8b5 421 /******************************** BTB maintenance operations ************************************************/
Kojto 102:da0ca467f8b5 422 /** \brief Invalidate entire branch predictor array
Kojto 102:da0ca467f8b5 423
Kojto 102:da0ca467f8b5 424 BPIALL. Branch Predictor Invalidate All.
Kojto 102:da0ca467f8b5 425 */
Kojto 102:da0ca467f8b5 426
Kojto 102:da0ca467f8b5 427 __STATIC_INLINE void __v7_inv_btac(void) {
Kojto 102:da0ca467f8b5 428 register uint32_t __BPIALL __ASM("cp15:0:c7:c5:6");
Kojto 102:da0ca467f8b5 429 __BPIALL = 0;
Kojto 102:da0ca467f8b5 430 __DSB(); //ensure completion of the invalidation
Kojto 102:da0ca467f8b5 431 __ISB(); //ensure instruction fetch path sees new state
Kojto 102:da0ca467f8b5 432 }
Kojto 102:da0ca467f8b5 433
Kojto 102:da0ca467f8b5 434
Kojto 102:da0ca467f8b5 435 /******************************** L1 cache operations ******************************************************/
Kojto 102:da0ca467f8b5 436
Kojto 102:da0ca467f8b5 437 /** \brief Invalidate the whole I$
Kojto 102:da0ca467f8b5 438
Kojto 102:da0ca467f8b5 439 ICIALLU. Instruction Cache Invalidate All to PoU
Kojto 102:da0ca467f8b5 440 */
Kojto 102:da0ca467f8b5 441 __STATIC_INLINE void __v7_inv_icache_all(void) {
Kojto 102:da0ca467f8b5 442 register uint32_t __ICIALLU __ASM("cp15:0:c7:c5:0");
Kojto 102:da0ca467f8b5 443 __ICIALLU = 0;
Kojto 102:da0ca467f8b5 444 __DSB(); //ensure completion of the invalidation
Kojto 102:da0ca467f8b5 445 __ISB(); //ensure instruction fetch path sees new I cache state
Kojto 102:da0ca467f8b5 446 }
Kojto 102:da0ca467f8b5 447
Kojto 102:da0ca467f8b5 448 /** \brief Clean D$ by MVA
Kojto 102:da0ca467f8b5 449
Kojto 102:da0ca467f8b5 450 DCCMVAC. Data cache clean by MVA to PoC
Kojto 102:da0ca467f8b5 451 */
Kojto 102:da0ca467f8b5 452 __STATIC_INLINE void __v7_clean_dcache_mva(void *va) {
Kojto 102:da0ca467f8b5 453 register uint32_t __DCCMVAC __ASM("cp15:0:c7:c10:1");
Kojto 102:da0ca467f8b5 454 __DCCMVAC = (uint32_t)va;
Kojto 102:da0ca467f8b5 455 __DMB(); //ensure the ordering of data cache maintenance operations and their effects
Kojto 102:da0ca467f8b5 456 }
Kojto 102:da0ca467f8b5 457
Kojto 102:da0ca467f8b5 458 /** \brief Invalidate D$ by MVA
Kojto 102:da0ca467f8b5 459
Kojto 102:da0ca467f8b5 460 DCIMVAC. Data cache invalidate by MVA to PoC
Kojto 102:da0ca467f8b5 461 */
Kojto 102:da0ca467f8b5 462 __STATIC_INLINE void __v7_inv_dcache_mva(void *va) {
Kojto 102:da0ca467f8b5 463 register uint32_t __DCIMVAC __ASM("cp15:0:c7:c6:1");
Kojto 102:da0ca467f8b5 464 __DCIMVAC = (uint32_t)va;
Kojto 102:da0ca467f8b5 465 __DMB(); //ensure the ordering of data cache maintenance operations and their effects
Kojto 102:da0ca467f8b5 466 }
Kojto 102:da0ca467f8b5 467
Kojto 102:da0ca467f8b5 468 /** \brief Clean and Invalidate D$ by MVA
Kojto 102:da0ca467f8b5 469
Kojto 102:da0ca467f8b5 470 DCCIMVAC. Data cache clean and invalidate by MVA to PoC
Kojto 102:da0ca467f8b5 471 */
Kojto 102:da0ca467f8b5 472 __STATIC_INLINE void __v7_clean_inv_dcache_mva(void *va) {
Kojto 102:da0ca467f8b5 473 register uint32_t __DCCIMVAC __ASM("cp15:0:c7:c14:1");
Kojto 102:da0ca467f8b5 474 __DCCIMVAC = (uint32_t)va;
Kojto 102:da0ca467f8b5 475 __DMB(); //ensure the ordering of data cache maintenance operations and their effects
Kojto 102:da0ca467f8b5 476 }
Kojto 102:da0ca467f8b5 477
Kojto 108:34e6b704fe68 478 /** \brief Clean and Invalidate the entire data or unified cache
Kojto 108:34e6b704fe68 479
Kojto 108:34e6b704fe68 480 Generic mechanism for cleaning/invalidating the entire data or unified cache to the point of coherency.
Kojto 102:da0ca467f8b5 481 */
Kojto 102:da0ca467f8b5 482 #pragma push
Kojto 102:da0ca467f8b5 483 #pragma arm
Kojto 102:da0ca467f8b5 484 __STATIC_ASM void __v7_all_cache(uint32_t op) {
Kojto 102:da0ca467f8b5 485 ARM
Kojto 102:da0ca467f8b5 486
Kojto 102:da0ca467f8b5 487 PUSH {R4-R11}
Kojto 102:da0ca467f8b5 488
Kojto 102:da0ca467f8b5 489 MRC p15, 1, R6, c0, c0, 1 // Read CLIDR
Kojto 102:da0ca467f8b5 490 ANDS R3, R6, #0x07000000 // Extract coherency level
Kojto 102:da0ca467f8b5 491 MOV R3, R3, LSR #23 // Total cache levels << 1
Kojto 102:da0ca467f8b5 492 BEQ Finished // If 0, no need to clean
Kojto 102:da0ca467f8b5 493
Kojto 102:da0ca467f8b5 494 MOV R10, #0 // R10 holds current cache level << 1
Kojto 102:da0ca467f8b5 495 Loop1 ADD R2, R10, R10, LSR #1 // R2 holds cache "Set" position
Kojto 102:da0ca467f8b5 496 MOV R1, R6, LSR R2 // Bottom 3 bits are the Cache-type for this level
Kojto 102:da0ca467f8b5 497 AND R1, R1, #7 // Isolate those lower 3 bits
Kojto 102:da0ca467f8b5 498 CMP R1, #2
Kojto 102:da0ca467f8b5 499 BLT Skip // No cache or only instruction cache at this level
Kojto 102:da0ca467f8b5 500
Kojto 102:da0ca467f8b5 501 MCR p15, 2, R10, c0, c0, 0 // Write the Cache Size selection register
Kojto 102:da0ca467f8b5 502 ISB // ISB to sync the change to the CacheSizeID reg
Kojto 102:da0ca467f8b5 503 MRC p15, 1, R1, c0, c0, 0 // Reads current Cache Size ID register
Kojto 102:da0ca467f8b5 504 AND R2, R1, #7 // Extract the line length field
Kojto 102:da0ca467f8b5 505 ADD R2, R2, #4 // Add 4 for the line length offset (log2 16 bytes)
Kojto 102:da0ca467f8b5 506 LDR R4, =0x3FF
Kojto 102:da0ca467f8b5 507 ANDS R4, R4, R1, LSR #3 // R4 is the max number on the way size (right aligned)
Kojto 102:da0ca467f8b5 508 CLZ R5, R4 // R5 is the bit position of the way size increment
Kojto 102:da0ca467f8b5 509 LDR R7, =0x7FFF
Kojto 102:da0ca467f8b5 510 ANDS R7, R7, R1, LSR #13 // R7 is the max number of the index size (right aligned)
Kojto 102:da0ca467f8b5 511
Kojto 102:da0ca467f8b5 512 Loop2 MOV R9, R4 // R9 working copy of the max way size (right aligned)
Kojto 102:da0ca467f8b5 513
Kojto 102:da0ca467f8b5 514 Loop3 ORR R11, R10, R9, LSL R5 // Factor in the Way number and cache number into R11
Kojto 102:da0ca467f8b5 515 ORR R11, R11, R7, LSL R2 // Factor in the Set number
Kojto 102:da0ca467f8b5 516 CMP R0, #0
Kojto 102:da0ca467f8b5 517 BNE Dccsw
Kojto 102:da0ca467f8b5 518 MCR p15, 0, R11, c7, c6, 2 // DCISW. Invalidate by Set/Way
Kojto 102:da0ca467f8b5 519 B cont
Kojto 102:da0ca467f8b5 520 Dccsw CMP R0, #1
Kojto 102:da0ca467f8b5 521 BNE Dccisw
Kojto 102:da0ca467f8b5 522 MCR p15, 0, R11, c7, c10, 2 // DCCSW. Clean by Set/Way
Kojto 102:da0ca467f8b5 523 B cont
Kojto 108:34e6b704fe68 524 Dccisw MCR p15, 0, R11, c7, c14, 2 // DCCISW. Clean and Invalidate by Set/Way
Kojto 102:da0ca467f8b5 525 cont SUBS R9, R9, #1 // Decrement the Way number
Kojto 102:da0ca467f8b5 526 BGE Loop3
Kojto 102:da0ca467f8b5 527 SUBS R7, R7, #1 // Decrement the Set number
Kojto 102:da0ca467f8b5 528 BGE Loop2
Kojto 108:34e6b704fe68 529 Skip ADD R10, R10, #2 // Increment the cache number
Kojto 102:da0ca467f8b5 530 CMP R3, R10
Kojto 102:da0ca467f8b5 531 BGT Loop1
Kojto 102:da0ca467f8b5 532
Kojto 102:da0ca467f8b5 533 Finished
Kojto 102:da0ca467f8b5 534 DSB
Kojto 102:da0ca467f8b5 535 POP {R4-R11}
Kojto 102:da0ca467f8b5 536 BX lr
Kojto 102:da0ca467f8b5 537
Kojto 102:da0ca467f8b5 538 }
Kojto 102:da0ca467f8b5 539 #pragma pop
Kojto 102:da0ca467f8b5 540
Kojto 102:da0ca467f8b5 541
Kojto 102:da0ca467f8b5 542 /** \brief Invalidate the whole D$
Kojto 102:da0ca467f8b5 543
Kojto 102:da0ca467f8b5 544 DCISW. Invalidate by Set/Way
Kojto 102:da0ca467f8b5 545 */
Kojto 102:da0ca467f8b5 546
Kojto 102:da0ca467f8b5 547 __STATIC_INLINE void __v7_inv_dcache_all(void) {
Kojto 102:da0ca467f8b5 548 __v7_all_cache(0);
Kojto 102:da0ca467f8b5 549 }
Kojto 102:da0ca467f8b5 550
Kojto 102:da0ca467f8b5 551 /** \brief Clean the whole D$
Kojto 102:da0ca467f8b5 552
Kojto 102:da0ca467f8b5 553 DCCSW. Clean by Set/Way
Kojto 102:da0ca467f8b5 554 */
Kojto 102:da0ca467f8b5 555
Kojto 102:da0ca467f8b5 556 __STATIC_INLINE void __v7_clean_dcache_all(void) {
Kojto 102:da0ca467f8b5 557 __v7_all_cache(1);
Kojto 102:da0ca467f8b5 558 }
Kojto 102:da0ca467f8b5 559
Kojto 102:da0ca467f8b5 560 /** \brief Clean and invalidate the whole D$
Kojto 102:da0ca467f8b5 561
Kojto 102:da0ca467f8b5 562 DCCISW. Clean and Invalidate by Set/Way
Kojto 102:da0ca467f8b5 563 */
Kojto 102:da0ca467f8b5 564
Kojto 102:da0ca467f8b5 565 __STATIC_INLINE void __v7_clean_inv_dcache_all(void) {
Kojto 102:da0ca467f8b5 566 __v7_all_cache(2);
Kojto 102:da0ca467f8b5 567 }
Kojto 102:da0ca467f8b5 568
Kojto 102:da0ca467f8b5 569 #include "core_ca_mmu.h"
Kojto 102:da0ca467f8b5 570
Kojto 102:da0ca467f8b5 571 #elif (defined (__ICCARM__)) /*---------------- ICC Compiler ---------------------*/
Kojto 102:da0ca467f8b5 572
Kojto 115:87f2f5183dfb 573 #define __inline inline
Kojto 115:87f2f5183dfb 574
Kojto 115:87f2f5183dfb 575 inline static uint32_t __disable_irq_iar() {
Kojto 115:87f2f5183dfb 576 int irq_dis = __get_CPSR() & 0x80; // 7bit CPSR.I
Kojto 115:87f2f5183dfb 577 __disable_irq();
Kojto 115:87f2f5183dfb 578 return irq_dis;
Kojto 115:87f2f5183dfb 579 }
Kojto 115:87f2f5183dfb 580
Kojto 115:87f2f5183dfb 581 #define MODE_USR 0x10
Kojto 115:87f2f5183dfb 582 #define MODE_FIQ 0x11
Kojto 115:87f2f5183dfb 583 #define MODE_IRQ 0x12
Kojto 115:87f2f5183dfb 584 #define MODE_SVC 0x13
Kojto 115:87f2f5183dfb 585 #define MODE_MON 0x16
Kojto 115:87f2f5183dfb 586 #define MODE_ABT 0x17
Kojto 115:87f2f5183dfb 587 #define MODE_HYP 0x1A
Kojto 115:87f2f5183dfb 588 #define MODE_UND 0x1B
Kojto 115:87f2f5183dfb 589 #define MODE_SYS 0x1F
Kojto 115:87f2f5183dfb 590
Kojto 115:87f2f5183dfb 591 /** \brief Set Process Stack Pointer
Kojto 115:87f2f5183dfb 592
Kojto 115:87f2f5183dfb 593 This function assigns the given value to the USR/SYS Stack Pointer (PSP).
Kojto 115:87f2f5183dfb 594
Kojto 115:87f2f5183dfb 595 \param [in] topOfProcStack USR/SYS Stack Pointer value to set
Kojto 115:87f2f5183dfb 596 */
Kojto 115:87f2f5183dfb 597 // from rt_CMSIS.c
Kojto 115:87f2f5183dfb 598 __arm static inline void __set_PSP(uint32_t topOfProcStack) {
Kojto 115:87f2f5183dfb 599 __asm(
Kojto 115:87f2f5183dfb 600 " ARM\n"
Kojto 115:87f2f5183dfb 601 // " PRESERVE8\n"
Kojto 115:87f2f5183dfb 602
Kojto 115:87f2f5183dfb 603 " BIC R0, R0, #7 ;ensure stack is 8-byte aligned \n"
Kojto 115:87f2f5183dfb 604 " MRS R1, CPSR \n"
Kojto 115:87f2f5183dfb 605 " CPS #0x1F ;no effect in USR mode \n" // MODE_SYS
Kojto 115:87f2f5183dfb 606 " MOV SP, R0 \n"
Kojto 115:87f2f5183dfb 607 " MSR CPSR_c, R1 ;no effect in USR mode \n"
Kojto 115:87f2f5183dfb 608 " ISB \n"
Kojto 115:87f2f5183dfb 609 " BX LR \n");
Kojto 115:87f2f5183dfb 610 }
Kojto 115:87f2f5183dfb 611
Kojto 115:87f2f5183dfb 612 /** \brief Set User Mode
Kojto 115:87f2f5183dfb 613
Kojto 115:87f2f5183dfb 614 This function changes the processor state to User Mode
Kojto 115:87f2f5183dfb 615 */
Kojto 115:87f2f5183dfb 616 // from rt_CMSIS.c
Kojto 115:87f2f5183dfb 617 __arm static inline void __set_CPS_USR(void) {
Kojto 115:87f2f5183dfb 618 __asm(
Kojto 115:87f2f5183dfb 619 " ARM \n"
Kojto 115:87f2f5183dfb 620
Kojto 115:87f2f5183dfb 621 " CPS #0x10 \n" // MODE_USR
Kojto 115:87f2f5183dfb 622 " BX LR\n");
Kojto 115:87f2f5183dfb 623 }
Kojto 115:87f2f5183dfb 624
Kojto 115:87f2f5183dfb 625 /** \brief Set TTBR0
Kojto 115:87f2f5183dfb 626
Kojto 115:87f2f5183dfb 627 This function assigns the given value to the Translation Table Base Register 0.
Kojto 115:87f2f5183dfb 628
Kojto 115:87f2f5183dfb 629 \param [in] ttbr0 Translation Table Base Register 0 value to set
Kojto 115:87f2f5183dfb 630 */
Kojto 115:87f2f5183dfb 631 // from mmu_Renesas_RZ_A1.c
Kojto 115:87f2f5183dfb 632 __STATIC_INLINE void __set_TTBR0(uint32_t ttbr0) {
Kojto 115:87f2f5183dfb 633 __MCR(15, 0, ttbr0, 2, 0, 0); // reg to cp15
Kojto 115:87f2f5183dfb 634 __ISB();
Kojto 115:87f2f5183dfb 635 }
Kojto 115:87f2f5183dfb 636
Kojto 115:87f2f5183dfb 637 /** \brief Set DACR
Kojto 115:87f2f5183dfb 638
Kojto 115:87f2f5183dfb 639 This function assigns the given value to the Domain Access Control Register.
Kojto 115:87f2f5183dfb 640
Kojto 115:87f2f5183dfb 641 \param [in] dacr Domain Access Control Register value to set
Kojto 115:87f2f5183dfb 642 */
Kojto 115:87f2f5183dfb 643 // from mmu_Renesas_RZ_A1.c
Kojto 115:87f2f5183dfb 644 __STATIC_INLINE void __set_DACR(uint32_t dacr) {
Kojto 115:87f2f5183dfb 645 __MCR(15, 0, dacr, 3, 0, 0); // reg to cp15
Kojto 115:87f2f5183dfb 646 __ISB();
Kojto 115:87f2f5183dfb 647 }
Kojto 115:87f2f5183dfb 648
Kojto 115:87f2f5183dfb 649
Kojto 115:87f2f5183dfb 650 /******************************** Cache and BTAC enable ****************************************************/
Kojto 115:87f2f5183dfb 651 /** \brief Set SCTLR
Kojto 115:87f2f5183dfb 652
Kojto 115:87f2f5183dfb 653 This function assigns the given value to the System Control Register.
Kojto 115:87f2f5183dfb 654
Kojto 115:87f2f5183dfb 655 \param [in] sctlr System Control Register value to set
Kojto 115:87f2f5183dfb 656 */
Kojto 115:87f2f5183dfb 657 // from __enable_mmu()
Kojto 115:87f2f5183dfb 658 __STATIC_INLINE void __set_SCTLR(uint32_t sctlr) {
Kojto 115:87f2f5183dfb 659 __MCR(15, 0, sctlr, 1, 0, 0); // reg to cp15
Kojto 115:87f2f5183dfb 660 }
Kojto 115:87f2f5183dfb 661
Kojto 115:87f2f5183dfb 662 /** \brief Get SCTLR
Kojto 115:87f2f5183dfb 663
Kojto 115:87f2f5183dfb 664 This function returns the value of the System Control Register.
Kojto 115:87f2f5183dfb 665
Kojto 115:87f2f5183dfb 666 \return System Control Register value
Kojto 115:87f2f5183dfb 667 */
Kojto 115:87f2f5183dfb 668 // from __enable_mmu()
Kojto 115:87f2f5183dfb 669 __STATIC_INLINE uint32_t __get_SCTLR() {
Kojto 115:87f2f5183dfb 670 uint32_t __regSCTLR = __MRC(15, 0, 1, 0, 0);
Kojto 115:87f2f5183dfb 671 return __regSCTLR;
Kojto 115:87f2f5183dfb 672 }
Kojto 115:87f2f5183dfb 673
Kojto 115:87f2f5183dfb 674 /** \brief Enable Caches
Kojto 115:87f2f5183dfb 675
Kojto 115:87f2f5183dfb 676 Enable Caches
Kojto 115:87f2f5183dfb 677 */
Kojto 115:87f2f5183dfb 678 // from system_Renesas_RZ_A1.c
Kojto 115:87f2f5183dfb 679 __STATIC_INLINE void __enable_caches(void) {
Kojto 115:87f2f5183dfb 680 __set_SCTLR( __get_SCTLR() | (1 << 12) | (1 << 2));
Kojto 115:87f2f5183dfb 681 }
Kojto 115:87f2f5183dfb 682
Kojto 115:87f2f5183dfb 683 /** \brief Enable BTAC
Kojto 115:87f2f5183dfb 684
Kojto 115:87f2f5183dfb 685 Enable BTAC
Kojto 115:87f2f5183dfb 686 */
Kojto 115:87f2f5183dfb 687 // from system_Renesas_RZ_A1.c
Kojto 115:87f2f5183dfb 688 __STATIC_INLINE void __enable_btac(void) {
Kojto 115:87f2f5183dfb 689 __set_SCTLR( __get_SCTLR() | (1 << 11));
Kojto 115:87f2f5183dfb 690 __ISB();
Kojto 115:87f2f5183dfb 691 }
Kojto 115:87f2f5183dfb 692
Kojto 115:87f2f5183dfb 693 /** \brief Enable MMU
Kojto 115:87f2f5183dfb 694
Kojto 115:87f2f5183dfb 695 Enable MMU
Kojto 115:87f2f5183dfb 696 */
Kojto 115:87f2f5183dfb 697 // from system_Renesas_RZ_A1.c
Kojto 115:87f2f5183dfb 698 __STATIC_INLINE void __enable_mmu(void) {
Kojto 115:87f2f5183dfb 699 // Set M bit 0 to enable the MMU
Kojto 115:87f2f5183dfb 700 // Set AFE bit to enable simplified access permissions model
Kojto 115:87f2f5183dfb 701 // Clear TRE bit to disable TEX remap and A bit to disable strict alignment fault checking
Kojto 115:87f2f5183dfb 702 __set_SCTLR( (__get_SCTLR() & ~(1 << 28) & ~(1 << 1)) | 1 | (1 << 29));
Kojto 115:87f2f5183dfb 703 __ISB();
Kojto 115:87f2f5183dfb 704 }
Kojto 115:87f2f5183dfb 705
Kojto 115:87f2f5183dfb 706 /******************************** TLB maintenance operations ************************************************/
Kojto 115:87f2f5183dfb 707 /** \brief Invalidate the whole tlb
Kojto 115:87f2f5183dfb 708
Kojto 115:87f2f5183dfb 709 TLBIALL. Invalidate the whole tlb
Kojto 115:87f2f5183dfb 710 */
Kojto 115:87f2f5183dfb 711 // from system_Renesas_RZ_A1.c
Kojto 115:87f2f5183dfb 712 __STATIC_INLINE void __ca9u_inv_tlb_all(void) {
Kojto 115:87f2f5183dfb 713 uint32_t val = 0;
Kojto 115:87f2f5183dfb 714 __MCR(15, 0, val, 8, 7, 0); // reg to cp15
Kojto 115:87f2f5183dfb 715 __MCR(15, 0, val, 8, 6, 0); // reg to cp15
Kojto 115:87f2f5183dfb 716 __MCR(15, 0, val, 8, 5, 0); // reg to cp15
Kojto 115:87f2f5183dfb 717 __DSB();
Kojto 115:87f2f5183dfb 718 __ISB();
Kojto 115:87f2f5183dfb 719 }
Kojto 115:87f2f5183dfb 720
Kojto 115:87f2f5183dfb 721 /******************************** BTB maintenance operations ************************************************/
Kojto 115:87f2f5183dfb 722 /** \brief Invalidate entire branch predictor array
Kojto 115:87f2f5183dfb 723
Kojto 115:87f2f5183dfb 724 BPIALL. Branch Predictor Invalidate All.
Kojto 115:87f2f5183dfb 725 */
Kojto 115:87f2f5183dfb 726 // from system_Renesas_RZ_A1.c
Kojto 115:87f2f5183dfb 727 __STATIC_INLINE void __v7_inv_btac(void) {
Kojto 115:87f2f5183dfb 728 uint32_t val = 0;
Kojto 115:87f2f5183dfb 729 __MCR(15, 0, val, 7, 5, 6); // reg to cp15
Kojto 115:87f2f5183dfb 730 __DSB(); //ensure completion of the invalidation
Kojto 115:87f2f5183dfb 731 __ISB(); //ensure instruction fetch path sees new state
Kojto 115:87f2f5183dfb 732 }
Kojto 115:87f2f5183dfb 733
Kojto 115:87f2f5183dfb 734
Kojto 115:87f2f5183dfb 735 /******************************** L1 cache operations ******************************************************/
Kojto 115:87f2f5183dfb 736
Kojto 115:87f2f5183dfb 737 /** \brief Invalidate the whole I$
Kojto 115:87f2f5183dfb 738
Kojto 115:87f2f5183dfb 739 ICIALLU. Instruction Cache Invalidate All to PoU
Kojto 115:87f2f5183dfb 740 */
Kojto 115:87f2f5183dfb 741 // from system_Renesas_RZ_A1.c
Kojto 115:87f2f5183dfb 742 __STATIC_INLINE void __v7_inv_icache_all(void) {
Kojto 115:87f2f5183dfb 743 uint32_t val = 0;
Kojto 115:87f2f5183dfb 744 __MCR(15, 0, val, 7, 5, 0); // reg to cp15
Kojto 115:87f2f5183dfb 745 __DSB(); //ensure completion of the invalidation
Kojto 115:87f2f5183dfb 746 __ISB(); //ensure instruction fetch path sees new I cache state
Kojto 115:87f2f5183dfb 747 }
Kojto 115:87f2f5183dfb 748
Kojto 115:87f2f5183dfb 749 // from __v7_inv_dcache_all()
Kojto 115:87f2f5183dfb 750 __arm static inline void __v7_all_cache(uint32_t op) {
Kojto 115:87f2f5183dfb 751 __asm(
Kojto 115:87f2f5183dfb 752 " ARM \n"
Kojto 115:87f2f5183dfb 753
Kojto 115:87f2f5183dfb 754 " PUSH {R4-R11} \n"
Kojto 115:87f2f5183dfb 755
Kojto 115:87f2f5183dfb 756 " MRC p15, 1, R6, c0, c0, 1\n" // Read CLIDR
Kojto 115:87f2f5183dfb 757 " ANDS R3, R6, #0x07000000\n" // Extract coherency level
Kojto 115:87f2f5183dfb 758 " MOV R3, R3, LSR #23\n" // Total cache levels << 1
Kojto 115:87f2f5183dfb 759 " BEQ Finished\n" // If 0, no need to clean
Kojto 115:87f2f5183dfb 760
Kojto 115:87f2f5183dfb 761 " MOV R10, #0\n" // R10 holds current cache level << 1
Kojto 115:87f2f5183dfb 762 "Loop1: ADD R2, R10, R10, LSR #1\n" // R2 holds cache "Set" position
Kojto 115:87f2f5183dfb 763 " MOV R1, R6, LSR R2 \n" // Bottom 3 bits are the Cache-type for this level
Kojto 115:87f2f5183dfb 764 " AND R1, R1, #7 \n" // Isolate those lower 3 bits
Kojto 115:87f2f5183dfb 765 " CMP R1, #2 \n"
Kojto 115:87f2f5183dfb 766 " BLT Skip \n" // No cache or only instruction cache at this level
Kojto 115:87f2f5183dfb 767
Kojto 115:87f2f5183dfb 768 " MCR p15, 2, R10, c0, c0, 0 \n" // Write the Cache Size selection register
Kojto 115:87f2f5183dfb 769 " ISB \n" // ISB to sync the change to the CacheSizeID reg
Kojto 115:87f2f5183dfb 770 " MRC p15, 1, R1, c0, c0, 0 \n" // Reads current Cache Size ID register
Kojto 115:87f2f5183dfb 771 " AND R2, R1, #7 \n" // Extract the line length field
Kojto 115:87f2f5183dfb 772 " ADD R2, R2, #4 \n" // Add 4 for the line length offset (log2 16 bytes)
Kojto 115:87f2f5183dfb 773 " movw R4, #0x3FF \n"
Kojto 115:87f2f5183dfb 774 " ANDS R4, R4, R1, LSR #3 \n" // R4 is the max number on the way size (right aligned)
Kojto 115:87f2f5183dfb 775 " CLZ R5, R4 \n" // R5 is the bit position of the way size increment
Kojto 115:87f2f5183dfb 776 " movw R7, #0x7FFF \n"
Kojto 115:87f2f5183dfb 777 " ANDS R7, R7, R1, LSR #13 \n" // R7 is the max number of the index size (right aligned)
Kojto 115:87f2f5183dfb 778
Kojto 115:87f2f5183dfb 779 "Loop2: MOV R9, R4 \n" // R9 working copy of the max way size (right aligned)
Kojto 115:87f2f5183dfb 780
Kojto 115:87f2f5183dfb 781 "Loop3: ORR R11, R10, R9, LSL R5 \n" // Factor in the Way number and cache number into R11
Kojto 115:87f2f5183dfb 782 " ORR R11, R11, R7, LSL R2 \n" // Factor in the Set number
Kojto 115:87f2f5183dfb 783 " CMP R0, #0 \n"
Kojto 115:87f2f5183dfb 784 " BNE Dccsw \n"
Kojto 115:87f2f5183dfb 785 " MCR p15, 0, R11, c7, c6, 2 \n" // DCISW. Invalidate by Set/Way
Kojto 115:87f2f5183dfb 786 " B cont \n"
Kojto 115:87f2f5183dfb 787 "Dccsw: CMP R0, #1 \n"
Kojto 115:87f2f5183dfb 788 " BNE Dccisw \n"
Kojto 115:87f2f5183dfb 789 " MCR p15, 0, R11, c7, c10, 2 \n" // DCCSW. Clean by Set/Way
Kojto 115:87f2f5183dfb 790 " B cont \n"
Kojto 115:87f2f5183dfb 791 "Dccisw: MCR p15, 0, R11, c7, c14, 2 \n" // DCCISW, Clean and Invalidate by Set/Way
Kojto 115:87f2f5183dfb 792 "cont: SUBS R9, R9, #1 \n" // Decrement the Way number
Kojto 115:87f2f5183dfb 793 " BGE Loop3 \n"
Kojto 115:87f2f5183dfb 794 " SUBS R7, R7, #1 \n" // Decrement the Set number
Kojto 115:87f2f5183dfb 795 " BGE Loop2 \n"
Kojto 115:87f2f5183dfb 796 "Skip: ADD R10, R10, #2 \n" // increment the cache number
Kojto 115:87f2f5183dfb 797 " CMP R3, R10 \n"
Kojto 115:87f2f5183dfb 798 " BGT Loop1 \n"
Kojto 115:87f2f5183dfb 799
Kojto 115:87f2f5183dfb 800 "Finished: \n"
Kojto 115:87f2f5183dfb 801 " DSB \n"
Kojto 115:87f2f5183dfb 802 " POP {R4-R11} \n"
Kojto 115:87f2f5183dfb 803 " BX lr \n" );
Kojto 115:87f2f5183dfb 804 }
Kojto 115:87f2f5183dfb 805
Kojto 115:87f2f5183dfb 806 /** \brief Invalidate the whole D$
Kojto 115:87f2f5183dfb 807
Kojto 115:87f2f5183dfb 808 DCISW. Invalidate by Set/Way
Kojto 115:87f2f5183dfb 809 */
Kojto 115:87f2f5183dfb 810 // from system_Renesas_RZ_A1.c
Kojto 115:87f2f5183dfb 811 __STATIC_INLINE void __v7_inv_dcache_all(void) {
Kojto 115:87f2f5183dfb 812 __v7_all_cache(0);
Kojto 115:87f2f5183dfb 813 }
<> 130:d75b3fe1f5cb 814 /** \brief Clean the whole D$
<> 130:d75b3fe1f5cb 815
<> 130:d75b3fe1f5cb 816 DCCSW. Clean by Set/Way
<> 130:d75b3fe1f5cb 817 */
<> 130:d75b3fe1f5cb 818
<> 130:d75b3fe1f5cb 819 __STATIC_INLINE void __v7_clean_dcache_all(void) {
<> 130:d75b3fe1f5cb 820 __v7_all_cache(1);
<> 130:d75b3fe1f5cb 821 }
<> 130:d75b3fe1f5cb 822
<> 130:d75b3fe1f5cb 823 /** \brief Clean and invalidate the whole D$
<> 130:d75b3fe1f5cb 824
<> 130:d75b3fe1f5cb 825 DCCISW. Clean and Invalidate by Set/Way
<> 130:d75b3fe1f5cb 826 */
<> 130:d75b3fe1f5cb 827
<> 130:d75b3fe1f5cb 828 __STATIC_INLINE void __v7_clean_inv_dcache_all(void) {
<> 130:d75b3fe1f5cb 829 __v7_all_cache(2);
<> 130:d75b3fe1f5cb 830 }
Kojto 121:6c34061e7c34 831 /** \brief Clean and Invalidate D$ by MVA
Kojto 121:6c34061e7c34 832
Kojto 121:6c34061e7c34 833 DCCIMVAC. Data cache clean and invalidate by MVA to PoC
Kojto 121:6c34061e7c34 834 */
Kojto 121:6c34061e7c34 835 __STATIC_INLINE void __v7_clean_inv_dcache_mva(void *va) {
Kojto 121:6c34061e7c34 836 __MCR(15, 0, (uint32_t)va, 7, 14, 1);
Kojto 121:6c34061e7c34 837 __DMB();
Kojto 121:6c34061e7c34 838 }
Kojto 121:6c34061e7c34 839
Kojto 115:87f2f5183dfb 840 #include "core_ca_mmu.h"
Kojto 102:da0ca467f8b5 841
Kojto 102:da0ca467f8b5 842 #elif (defined (__GNUC__)) /*------------------ GNU Compiler ---------------------*/
Kojto 102:da0ca467f8b5 843 /* GNU gcc specific functions */
Kojto 102:da0ca467f8b5 844
Kojto 102:da0ca467f8b5 845 #define MODE_USR 0x10
Kojto 102:da0ca467f8b5 846 #define MODE_FIQ 0x11
Kojto 102:da0ca467f8b5 847 #define MODE_IRQ 0x12
Kojto 102:da0ca467f8b5 848 #define MODE_SVC 0x13
Kojto 102:da0ca467f8b5 849 #define MODE_MON 0x16
Kojto 102:da0ca467f8b5 850 #define MODE_ABT 0x17
Kojto 102:da0ca467f8b5 851 #define MODE_HYP 0x1A
Kojto 102:da0ca467f8b5 852 #define MODE_UND 0x1B
Kojto 102:da0ca467f8b5 853 #define MODE_SYS 0x1F
Kojto 102:da0ca467f8b5 854
Kojto 102:da0ca467f8b5 855
Kojto 102:da0ca467f8b5 856 __attribute__( ( always_inline ) ) __STATIC_INLINE void __enable_irq(void)
Kojto 102:da0ca467f8b5 857 {
Kojto 102:da0ca467f8b5 858 __ASM volatile ("cpsie i");
Kojto 102:da0ca467f8b5 859 }
Kojto 102:da0ca467f8b5 860
Kojto 102:da0ca467f8b5 861 /** \brief Disable IRQ Interrupts
Kojto 102:da0ca467f8b5 862
Kojto 102:da0ca467f8b5 863 This function disables IRQ interrupts by setting the I-bit in the CPSR.
Kojto 102:da0ca467f8b5 864 Can only be executed in Privileged modes.
Kojto 102:da0ca467f8b5 865 */
Kojto 102:da0ca467f8b5 866 __attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __disable_irq(void)
Kojto 102:da0ca467f8b5 867 {
Kojto 102:da0ca467f8b5 868 uint32_t result;
Kojto 102:da0ca467f8b5 869
Kojto 102:da0ca467f8b5 870 __ASM volatile ("mrs %0, cpsr" : "=r" (result));
Kojto 102:da0ca467f8b5 871 __ASM volatile ("cpsid i");
Kojto 102:da0ca467f8b5 872 return(result & 0x80);
Kojto 102:da0ca467f8b5 873 }
Kojto 102:da0ca467f8b5 874
Kojto 102:da0ca467f8b5 875
Kojto 102:da0ca467f8b5 876 /** \brief Get APSR Register
Kojto 102:da0ca467f8b5 877
Kojto 102:da0ca467f8b5 878 This function returns the content of the APSR Register.
Kojto 102:da0ca467f8b5 879
Kojto 102:da0ca467f8b5 880 \return APSR Register value
Kojto 102:da0ca467f8b5 881 */
Kojto 102:da0ca467f8b5 882 __attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __get_APSR(void)
Kojto 102:da0ca467f8b5 883 {
Kojto 102:da0ca467f8b5 884 #if 1
Kojto 108:34e6b704fe68 885 register uint32_t __regAPSR;
Kojto 108:34e6b704fe68 886 __ASM volatile ("mrs %0, apsr" : "=r" (__regAPSR) );
Kojto 102:da0ca467f8b5 887 #else
Kojto 102:da0ca467f8b5 888 register uint32_t __regAPSR __ASM("apsr");
Kojto 108:34e6b704fe68 889 #endif
Kojto 102:da0ca467f8b5 890 return(__regAPSR);
Kojto 102:da0ca467f8b5 891 }
Kojto 102:da0ca467f8b5 892
Kojto 102:da0ca467f8b5 893
Kojto 102:da0ca467f8b5 894 /** \brief Get CPSR Register
Kojto 102:da0ca467f8b5 895
Kojto 102:da0ca467f8b5 896 This function returns the content of the CPSR Register.
Kojto 102:da0ca467f8b5 897
Kojto 102:da0ca467f8b5 898 \return CPSR Register value
Kojto 102:da0ca467f8b5 899 */
Kojto 102:da0ca467f8b5 900 __attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __get_CPSR(void)
Kojto 102:da0ca467f8b5 901 {
Kojto 102:da0ca467f8b5 902 #if 1
Kojto 102:da0ca467f8b5 903 register uint32_t __regCPSR;
Kojto 102:da0ca467f8b5 904 __ASM volatile ("mrs %0, cpsr" : "=r" (__regCPSR));
Kojto 102:da0ca467f8b5 905 #else
Kojto 102:da0ca467f8b5 906 register uint32_t __regCPSR __ASM("cpsr");
Kojto 102:da0ca467f8b5 907 #endif
Kojto 102:da0ca467f8b5 908 return(__regCPSR);
Kojto 102:da0ca467f8b5 909 }
Kojto 102:da0ca467f8b5 910
Kojto 102:da0ca467f8b5 911 #if 0
Kojto 102:da0ca467f8b5 912 /** \brief Set Stack Pointer
Kojto 102:da0ca467f8b5 913
Kojto 102:da0ca467f8b5 914 This function assigns the given value to the current stack pointer.
Kojto 102:da0ca467f8b5 915
Kojto 102:da0ca467f8b5 916 \param [in] topOfStack Stack Pointer value to set
Kojto 102:da0ca467f8b5 917 */
Kojto 102:da0ca467f8b5 918 __attribute__( ( always_inline ) ) __STATIC_INLINE void __set_SP(uint32_t topOfStack)
Kojto 102:da0ca467f8b5 919 {
Kojto 102:da0ca467f8b5 920 register uint32_t __regSP __ASM("sp");
Kojto 102:da0ca467f8b5 921 __regSP = topOfStack;
Kojto 102:da0ca467f8b5 922 }
Kojto 102:da0ca467f8b5 923 #endif
Kojto 102:da0ca467f8b5 924
Kojto 102:da0ca467f8b5 925 /** \brief Get link register
Kojto 102:da0ca467f8b5 926
Kojto 102:da0ca467f8b5 927 This function returns the value of the link register
Kojto 102:da0ca467f8b5 928
Kojto 102:da0ca467f8b5 929 \return Value of link register
Kojto 102:da0ca467f8b5 930 */
Kojto 102:da0ca467f8b5 931 __attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __get_LR(void)
Kojto 102:da0ca467f8b5 932 {
Kojto 102:da0ca467f8b5 933 register uint32_t __reglr __ASM("lr");
Kojto 102:da0ca467f8b5 934 return(__reglr);
Kojto 102:da0ca467f8b5 935 }
Kojto 102:da0ca467f8b5 936
Kojto 102:da0ca467f8b5 937 #if 0
Kojto 102:da0ca467f8b5 938 /** \brief Set link register
Kojto 102:da0ca467f8b5 939
Kojto 102:da0ca467f8b5 940 This function sets the value of the link register
Kojto 102:da0ca467f8b5 941
Kojto 102:da0ca467f8b5 942 \param [in] lr LR value to set
Kojto 102:da0ca467f8b5 943 */
Kojto 102:da0ca467f8b5 944 __attribute__( ( always_inline ) ) __STATIC_INLINE void __set_LR(uint32_t lr)
Kojto 102:da0ca467f8b5 945 {
Kojto 102:da0ca467f8b5 946 register uint32_t __reglr __ASM("lr");
Kojto 102:da0ca467f8b5 947 __reglr = lr;
Kojto 102:da0ca467f8b5 948 }
Kojto 102:da0ca467f8b5 949 #endif
Kojto 102:da0ca467f8b5 950
Kojto 102:da0ca467f8b5 951 /** \brief Set Process Stack Pointer
Kojto 102:da0ca467f8b5 952
Kojto 102:da0ca467f8b5 953 This function assigns the given value to the USR/SYS Stack Pointer (PSP).
Kojto 102:da0ca467f8b5 954
Kojto 102:da0ca467f8b5 955 \param [in] topOfProcStack USR/SYS Stack Pointer value to set
Kojto 102:da0ca467f8b5 956 */
Kojto 108:34e6b704fe68 957 __attribute__( ( always_inline ) ) __STATIC_INLINE void __set_PSP(uint32_t topOfProcStack)
Kojto 108:34e6b704fe68 958 {
Kojto 108:34e6b704fe68 959 __asm__ volatile (
Kojto 108:34e6b704fe68 960 ".ARM;"
Kojto 108:34e6b704fe68 961 ".eabi_attribute Tag_ABI_align8_preserved,1;"
Kojto 108:34e6b704fe68 962
Kojto 108:34e6b704fe68 963 "BIC R0, R0, #7;" /* ;ensure stack is 8-byte aligned */
Kojto 108:34e6b704fe68 964 "MRS R1, CPSR;"
Kojto 108:34e6b704fe68 965 "CPS %0;" /* ;no effect in USR mode */
Kojto 108:34e6b704fe68 966 "MOV SP, R0;"
Kojto 108:34e6b704fe68 967 "MSR CPSR_c, R1;" /* ;no effect in USR mode */
Kojto 108:34e6b704fe68 968 "ISB;"
Kojto 108:34e6b704fe68 969 //"BX LR;"
Kojto 108:34e6b704fe68 970 :
Kojto 108:34e6b704fe68 971 : "i"(MODE_SYS)
Kojto 108:34e6b704fe68 972 : "r0", "r1");
Kojto 108:34e6b704fe68 973 return;
Kojto 108:34e6b704fe68 974 }
Kojto 102:da0ca467f8b5 975
Kojto 102:da0ca467f8b5 976 /** \brief Set User Mode
Kojto 102:da0ca467f8b5 977
Kojto 102:da0ca467f8b5 978 This function changes the processor state to User Mode
Kojto 108:34e6b704fe68 979 */
Kojto 108:34e6b704fe68 980 __attribute__( ( always_inline ) ) __STATIC_INLINE void __set_CPS_USR(void)
Kojto 108:34e6b704fe68 981 {
Kojto 108:34e6b704fe68 982 __asm__ volatile (
Kojto 108:34e6b704fe68 983 ".ARM;"
Kojto 102:da0ca467f8b5 984
Kojto 108:34e6b704fe68 985 "CPS %0;"
Kojto 108:34e6b704fe68 986 //"BX LR;"
Kojto 108:34e6b704fe68 987 :
Kojto 108:34e6b704fe68 988 : "i"(MODE_USR)
Kojto 108:34e6b704fe68 989 : );
Kojto 108:34e6b704fe68 990 return;
Kojto 108:34e6b704fe68 991 }
Kojto 108:34e6b704fe68 992
Kojto 102:da0ca467f8b5 993
Kojto 102:da0ca467f8b5 994 /** \brief Enable FIQ
Kojto 102:da0ca467f8b5 995
Kojto 102:da0ca467f8b5 996 This function enables FIQ interrupts by clearing the F-bit in the CPSR.
Kojto 102:da0ca467f8b5 997 Can only be executed in Privileged modes.
Kojto 102:da0ca467f8b5 998 */
Kojto 108:34e6b704fe68 999 #define __enable_fault_irq() __asm__ volatile ("cpsie f")
Kojto 102:da0ca467f8b5 1000
Kojto 102:da0ca467f8b5 1001
Kojto 102:da0ca467f8b5 1002 /** \brief Disable FIQ
Kojto 102:da0ca467f8b5 1003
Kojto 102:da0ca467f8b5 1004 This function disables FIQ interrupts by setting the F-bit in the CPSR.
Kojto 102:da0ca467f8b5 1005 Can only be executed in Privileged modes.
Kojto 102:da0ca467f8b5 1006 */
Kojto 108:34e6b704fe68 1007 #define __disable_fault_irq() __asm__ volatile ("cpsid f")
Kojto 102:da0ca467f8b5 1008
Kojto 102:da0ca467f8b5 1009
Kojto 102:da0ca467f8b5 1010 /** \brief Get FPSCR
Kojto 102:da0ca467f8b5 1011
Kojto 102:da0ca467f8b5 1012 This function returns the current value of the Floating Point Status/Control register.
Kojto 102:da0ca467f8b5 1013
Kojto 102:da0ca467f8b5 1014 \return Floating Point Status/Control register value
Kojto 102:da0ca467f8b5 1015 */
Kojto 102:da0ca467f8b5 1016 __attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __get_FPSCR(void)
Kojto 102:da0ca467f8b5 1017 {
Kojto 102:da0ca467f8b5 1018 #if (__FPU_PRESENT == 1) && (__FPU_USED == 1)
Kojto 102:da0ca467f8b5 1019 #if 1
Kojto 102:da0ca467f8b5 1020 uint32_t result;
Kojto 102:da0ca467f8b5 1021
Kojto 102:da0ca467f8b5 1022 __ASM volatile ("vmrs %0, fpscr" : "=r" (result) );
Kojto 102:da0ca467f8b5 1023 return (result);
Kojto 102:da0ca467f8b5 1024 #else
Kojto 102:da0ca467f8b5 1025 register uint32_t __regfpscr __ASM("fpscr");
Kojto 102:da0ca467f8b5 1026 return(__regfpscr);
Kojto 102:da0ca467f8b5 1027 #endif
Kojto 102:da0ca467f8b5 1028 #else
Kojto 102:da0ca467f8b5 1029 return(0);
Kojto 102:da0ca467f8b5 1030 #endif
Kojto 102:da0ca467f8b5 1031 }
Kojto 102:da0ca467f8b5 1032
Kojto 102:da0ca467f8b5 1033
Kojto 102:da0ca467f8b5 1034 /** \brief Set FPSCR
Kojto 102:da0ca467f8b5 1035
Kojto 102:da0ca467f8b5 1036 This function assigns the given value to the Floating Point Status/Control register.
Kojto 102:da0ca467f8b5 1037
Kojto 102:da0ca467f8b5 1038 \param [in] fpscr Floating Point Status/Control value to set
Kojto 102:da0ca467f8b5 1039 */
Kojto 102:da0ca467f8b5 1040 __attribute__( ( always_inline ) ) __STATIC_INLINE void __set_FPSCR(uint32_t fpscr)
Kojto 102:da0ca467f8b5 1041 {
Kojto 102:da0ca467f8b5 1042 #if (__FPU_PRESENT == 1) && (__FPU_USED == 1)
Kojto 102:da0ca467f8b5 1043 #if 1
Kojto 102:da0ca467f8b5 1044 __ASM volatile ("vmsr fpscr, %0" : : "r" (fpscr) );
Kojto 102:da0ca467f8b5 1045 #else
Kojto 102:da0ca467f8b5 1046 register uint32_t __regfpscr __ASM("fpscr");
Kojto 102:da0ca467f8b5 1047 __regfpscr = (fpscr);
Kojto 102:da0ca467f8b5 1048 #endif
Kojto 102:da0ca467f8b5 1049 #endif
Kojto 102:da0ca467f8b5 1050 }
Kojto 102:da0ca467f8b5 1051
Kojto 102:da0ca467f8b5 1052 /** \brief Get FPEXC
Kojto 102:da0ca467f8b5 1053
Kojto 102:da0ca467f8b5 1054 This function returns the current value of the Floating Point Exception Control register.
Kojto 102:da0ca467f8b5 1055
Kojto 102:da0ca467f8b5 1056 \return Floating Point Exception Control register value
Kojto 102:da0ca467f8b5 1057 */
Kojto 102:da0ca467f8b5 1058 __attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __get_FPEXC(void)
Kojto 102:da0ca467f8b5 1059 {
Kojto 102:da0ca467f8b5 1060 #if (__FPU_PRESENT == 1)
Kojto 102:da0ca467f8b5 1061 #if 1
Kojto 102:da0ca467f8b5 1062 uint32_t result;
Kojto 102:da0ca467f8b5 1063
Kojto 102:da0ca467f8b5 1064 __ASM volatile ("vmrs %0, fpexc" : "=r" (result));
Kojto 102:da0ca467f8b5 1065 return (result);
Kojto 102:da0ca467f8b5 1066 #else
Kojto 102:da0ca467f8b5 1067 register uint32_t __regfpexc __ASM("fpexc");
Kojto 102:da0ca467f8b5 1068 return(__regfpexc);
Kojto 102:da0ca467f8b5 1069 #endif
Kojto 102:da0ca467f8b5 1070 #else
Kojto 102:da0ca467f8b5 1071 return(0);
Kojto 102:da0ca467f8b5 1072 #endif
Kojto 102:da0ca467f8b5 1073 }
Kojto 102:da0ca467f8b5 1074
Kojto 102:da0ca467f8b5 1075
Kojto 102:da0ca467f8b5 1076 /** \brief Set FPEXC
Kojto 102:da0ca467f8b5 1077
Kojto 102:da0ca467f8b5 1078 This function assigns the given value to the Floating Point Exception Control register.
Kojto 102:da0ca467f8b5 1079
Kojto 102:da0ca467f8b5 1080 \param [in] fpscr Floating Point Exception Control value to set
Kojto 102:da0ca467f8b5 1081 */
Kojto 102:da0ca467f8b5 1082 __attribute__( ( always_inline ) ) __STATIC_INLINE void __set_FPEXC(uint32_t fpexc)
Kojto 102:da0ca467f8b5 1083 {
Kojto 102:da0ca467f8b5 1084 #if (__FPU_PRESENT == 1)
Kojto 102:da0ca467f8b5 1085 #if 1
Kojto 102:da0ca467f8b5 1086 __ASM volatile ("vmsr fpexc, %0" : : "r" (fpexc));
Kojto 102:da0ca467f8b5 1087 #else
Kojto 102:da0ca467f8b5 1088 register uint32_t __regfpexc __ASM("fpexc");
Kojto 102:da0ca467f8b5 1089 __regfpexc = (fpexc);
Kojto 102:da0ca467f8b5 1090 #endif
Kojto 102:da0ca467f8b5 1091 #endif
Kojto 102:da0ca467f8b5 1092 }
Kojto 102:da0ca467f8b5 1093
Kojto 102:da0ca467f8b5 1094 /** \brief Get CPACR
Kojto 102:da0ca467f8b5 1095
Kojto 102:da0ca467f8b5 1096 This function returns the current value of the Coprocessor Access Control register.
Kojto 102:da0ca467f8b5 1097
Kojto 102:da0ca467f8b5 1098 \return Coprocessor Access Control register value
Kojto 102:da0ca467f8b5 1099 */
Kojto 102:da0ca467f8b5 1100 __attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __get_CPACR(void)
Kojto 102:da0ca467f8b5 1101 {
Kojto 102:da0ca467f8b5 1102 #if 1
Kojto 102:da0ca467f8b5 1103 register uint32_t __regCPACR;
Kojto 102:da0ca467f8b5 1104 __ASM volatile ("mrc p15, 0, %0, c1, c0, 2" : "=r" (__regCPACR));
Kojto 102:da0ca467f8b5 1105 #else
Kojto 102:da0ca467f8b5 1106 register uint32_t __regCPACR __ASM("cp15:0:c1:c0:2");
Kojto 102:da0ca467f8b5 1107 #endif
Kojto 102:da0ca467f8b5 1108 return __regCPACR;
Kojto 102:da0ca467f8b5 1109 }
Kojto 102:da0ca467f8b5 1110
Kojto 102:da0ca467f8b5 1111 /** \brief Set CPACR
Kojto 102:da0ca467f8b5 1112
Kojto 102:da0ca467f8b5 1113 This function assigns the given value to the Coprocessor Access Control register.
Kojto 102:da0ca467f8b5 1114
Kojto 108:34e6b704fe68 1115 \param [in] cpacr Coprocessor Acccess Control value to set
Kojto 102:da0ca467f8b5 1116 */
Kojto 102:da0ca467f8b5 1117 __attribute__( ( always_inline ) ) __STATIC_INLINE void __set_CPACR(uint32_t cpacr)
Kojto 102:da0ca467f8b5 1118 {
Kojto 102:da0ca467f8b5 1119 #if 1
Kojto 102:da0ca467f8b5 1120 __ASM volatile ("mcr p15, 0, %0, c1, c0, 2" : : "r" (cpacr));
Kojto 102:da0ca467f8b5 1121 #else
Kojto 102:da0ca467f8b5 1122 register uint32_t __regCPACR __ASM("cp15:0:c1:c0:2");
Kojto 102:da0ca467f8b5 1123 __regCPACR = cpacr;
Kojto 102:da0ca467f8b5 1124 #endif
Kojto 102:da0ca467f8b5 1125 __ISB();
Kojto 102:da0ca467f8b5 1126 }
Kojto 102:da0ca467f8b5 1127
Kojto 102:da0ca467f8b5 1128 /** \brief Get CBAR
Kojto 102:da0ca467f8b5 1129
Kojto 102:da0ca467f8b5 1130 This function returns the value of the Configuration Base Address register.
Kojto 102:da0ca467f8b5 1131
Kojto 102:da0ca467f8b5 1132 \return Configuration Base Address register value
Kojto 102:da0ca467f8b5 1133 */
Kojto 102:da0ca467f8b5 1134 __attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __get_CBAR() {
Kojto 102:da0ca467f8b5 1135 #if 1
Kojto 102:da0ca467f8b5 1136 register uint32_t __regCBAR;
Kojto 102:da0ca467f8b5 1137 __ASM volatile ("mrc p15, 4, %0, c15, c0, 0" : "=r" (__regCBAR));
Kojto 102:da0ca467f8b5 1138 #else
Kojto 102:da0ca467f8b5 1139 register uint32_t __regCBAR __ASM("cp15:4:c15:c0:0");
Kojto 102:da0ca467f8b5 1140 #endif
Kojto 102:da0ca467f8b5 1141 return(__regCBAR);
Kojto 102:da0ca467f8b5 1142 }
Kojto 102:da0ca467f8b5 1143
Kojto 102:da0ca467f8b5 1144 /** \brief Get TTBR0
Kojto 102:da0ca467f8b5 1145
Kojto 108:34e6b704fe68 1146 This function returns the value of the Translation Table Base Register 0.
Kojto 102:da0ca467f8b5 1147
Kojto 102:da0ca467f8b5 1148 \return Translation Table Base Register 0 value
Kojto 102:da0ca467f8b5 1149 */
Kojto 102:da0ca467f8b5 1150 __attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __get_TTBR0() {
Kojto 102:da0ca467f8b5 1151 #if 1
Kojto 102:da0ca467f8b5 1152 register uint32_t __regTTBR0;
Kojto 102:da0ca467f8b5 1153 __ASM volatile ("mrc p15, 0, %0, c2, c0, 0" : "=r" (__regTTBR0));
Kojto 102:da0ca467f8b5 1154 #else
Kojto 102:da0ca467f8b5 1155 register uint32_t __regTTBR0 __ASM("cp15:0:c2:c0:0");
Kojto 102:da0ca467f8b5 1156 #endif
Kojto 102:da0ca467f8b5 1157 return(__regTTBR0);
Kojto 102:da0ca467f8b5 1158 }
Kojto 102:da0ca467f8b5 1159
Kojto 102:da0ca467f8b5 1160 /** \brief Set TTBR0
Kojto 102:da0ca467f8b5 1161
Kojto 108:34e6b704fe68 1162 This function assigns the given value to the Translation Table Base Register 0.
Kojto 102:da0ca467f8b5 1163
Kojto 102:da0ca467f8b5 1164 \param [in] ttbr0 Translation Table Base Register 0 value to set
Kojto 102:da0ca467f8b5 1165 */
Kojto 102:da0ca467f8b5 1166 __attribute__( ( always_inline ) ) __STATIC_INLINE void __set_TTBR0(uint32_t ttbr0) {
Kojto 102:da0ca467f8b5 1167 #if 1
Kojto 102:da0ca467f8b5 1168 __ASM volatile ("mcr p15, 0, %0, c2, c0, 0" : : "r" (ttbr0));
Kojto 102:da0ca467f8b5 1169 #else
Kojto 102:da0ca467f8b5 1170 register uint32_t __regTTBR0 __ASM("cp15:0:c2:c0:0");
Kojto 102:da0ca467f8b5 1171 __regTTBR0 = ttbr0;
Kojto 102:da0ca467f8b5 1172 #endif
Kojto 102:da0ca467f8b5 1173 __ISB();
Kojto 102:da0ca467f8b5 1174 }
Kojto 102:da0ca467f8b5 1175
Kojto 102:da0ca467f8b5 1176 /** \brief Get DACR
Kojto 102:da0ca467f8b5 1177
Kojto 102:da0ca467f8b5 1178 This function returns the value of the Domain Access Control Register.
Kojto 102:da0ca467f8b5 1179
Kojto 102:da0ca467f8b5 1180 \return Domain Access Control Register value
Kojto 102:da0ca467f8b5 1181 */
Kojto 102:da0ca467f8b5 1182 __attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __get_DACR() {
Kojto 102:da0ca467f8b5 1183 #if 1
Kojto 102:da0ca467f8b5 1184 register uint32_t __regDACR;
Kojto 102:da0ca467f8b5 1185 __ASM volatile ("mrc p15, 0, %0, c3, c0, 0" : "=r" (__regDACR));
Kojto 102:da0ca467f8b5 1186 #else
Kojto 102:da0ca467f8b5 1187 register uint32_t __regDACR __ASM("cp15:0:c3:c0:0");
Kojto 102:da0ca467f8b5 1188 #endif
Kojto 102:da0ca467f8b5 1189 return(__regDACR);
Kojto 102:da0ca467f8b5 1190 }
Kojto 102:da0ca467f8b5 1191
Kojto 102:da0ca467f8b5 1192 /** \brief Set DACR
Kojto 102:da0ca467f8b5 1193
Kojto 108:34e6b704fe68 1194 This function assigns the given value to the Domain Access Control Register.
Kojto 102:da0ca467f8b5 1195
Kojto 102:da0ca467f8b5 1196 \param [in] dacr Domain Access Control Register value to set
Kojto 102:da0ca467f8b5 1197 */
Kojto 102:da0ca467f8b5 1198 __attribute__( ( always_inline ) ) __STATIC_INLINE void __set_DACR(uint32_t dacr) {
Kojto 102:da0ca467f8b5 1199 #if 1
Kojto 102:da0ca467f8b5 1200 __ASM volatile ("mcr p15, 0, %0, c3, c0, 0" : : "r" (dacr));
Kojto 102:da0ca467f8b5 1201 #else
Kojto 102:da0ca467f8b5 1202 register uint32_t __regDACR __ASM("cp15:0:c3:c0:0");
Kojto 102:da0ca467f8b5 1203 __regDACR = dacr;
Kojto 102:da0ca467f8b5 1204 #endif
Kojto 102:da0ca467f8b5 1205 __ISB();
Kojto 102:da0ca467f8b5 1206 }
Kojto 102:da0ca467f8b5 1207
Kojto 102:da0ca467f8b5 1208 /******************************** Cache and BTAC enable ****************************************************/
Kojto 102:da0ca467f8b5 1209
Kojto 102:da0ca467f8b5 1210 /** \brief Set SCTLR
Kojto 102:da0ca467f8b5 1211
Kojto 102:da0ca467f8b5 1212 This function assigns the given value to the System Control Register.
Kojto 102:da0ca467f8b5 1213
Kojto 108:34e6b704fe68 1214 \param [in] sctlr System Control Register value to set
Kojto 102:da0ca467f8b5 1215 */
Kojto 102:da0ca467f8b5 1216 __attribute__( ( always_inline ) ) __STATIC_INLINE void __set_SCTLR(uint32_t sctlr)
Kojto 102:da0ca467f8b5 1217 {
Kojto 102:da0ca467f8b5 1218 #if 1
Kojto 102:da0ca467f8b5 1219 __ASM volatile ("mcr p15, 0, %0, c1, c0, 0" : : "r" (sctlr));
Kojto 102:da0ca467f8b5 1220 #else
Kojto 102:da0ca467f8b5 1221 register uint32_t __regSCTLR __ASM("cp15:0:c1:c0:0");
Kojto 102:da0ca467f8b5 1222 __regSCTLR = sctlr;
Kojto 102:da0ca467f8b5 1223 #endif
Kojto 102:da0ca467f8b5 1224 }
Kojto 102:da0ca467f8b5 1225
Kojto 102:da0ca467f8b5 1226 /** \brief Get SCTLR
Kojto 102:da0ca467f8b5 1227
Kojto 102:da0ca467f8b5 1228 This function returns the value of the System Control Register.
Kojto 102:da0ca467f8b5 1229
Kojto 102:da0ca467f8b5 1230 \return System Control Register value
Kojto 102:da0ca467f8b5 1231 */
Kojto 102:da0ca467f8b5 1232 __attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __get_SCTLR() {
Kojto 102:da0ca467f8b5 1233 #if 1
Kojto 102:da0ca467f8b5 1234 register uint32_t __regSCTLR;
Kojto 102:da0ca467f8b5 1235 __ASM volatile ("mrc p15, 0, %0, c1, c0, 0" : "=r" (__regSCTLR));
Kojto 102:da0ca467f8b5 1236 #else
Kojto 102:da0ca467f8b5 1237 register uint32_t __regSCTLR __ASM("cp15:0:c1:c0:0");
Kojto 102:da0ca467f8b5 1238 #endif
Kojto 102:da0ca467f8b5 1239 return(__regSCTLR);
Kojto 102:da0ca467f8b5 1240 }
Kojto 102:da0ca467f8b5 1241
Kojto 102:da0ca467f8b5 1242 /** \brief Enable Caches
Kojto 102:da0ca467f8b5 1243
Kojto 102:da0ca467f8b5 1244 Enable Caches
Kojto 102:da0ca467f8b5 1245 */
Kojto 102:da0ca467f8b5 1246 __attribute__( ( always_inline ) ) __STATIC_INLINE void __enable_caches(void) {
Kojto 102:da0ca467f8b5 1247 // Set I bit 12 to enable I Cache
Kojto 102:da0ca467f8b5 1248 // Set C bit 2 to enable D Cache
Kojto 102:da0ca467f8b5 1249 __set_SCTLR( __get_SCTLR() | (1 << 12) | (1 << 2));
Kojto 102:da0ca467f8b5 1250 }
Kojto 102:da0ca467f8b5 1251
Kojto 102:da0ca467f8b5 1252 /** \brief Disable Caches
Kojto 102:da0ca467f8b5 1253
Kojto 102:da0ca467f8b5 1254 Disable Caches
Kojto 102:da0ca467f8b5 1255 */
Kojto 102:da0ca467f8b5 1256 __attribute__( ( always_inline ) ) __STATIC_INLINE void __disable_caches(void) {
Kojto 102:da0ca467f8b5 1257 // Clear I bit 12 to disable I Cache
Kojto 102:da0ca467f8b5 1258 // Clear C bit 2 to disable D Cache
Kojto 102:da0ca467f8b5 1259 __set_SCTLR( __get_SCTLR() & ~(1 << 12) & ~(1 << 2));
Kojto 102:da0ca467f8b5 1260 __ISB();
Kojto 102:da0ca467f8b5 1261 }
Kojto 102:da0ca467f8b5 1262
Kojto 102:da0ca467f8b5 1263 /** \brief Enable BTAC
Kojto 102:da0ca467f8b5 1264
Kojto 102:da0ca467f8b5 1265 Enable BTAC
Kojto 102:da0ca467f8b5 1266 */
Kojto 102:da0ca467f8b5 1267 __attribute__( ( always_inline ) ) __STATIC_INLINE void __enable_btac(void) {
Kojto 102:da0ca467f8b5 1268 // Set Z bit 11 to enable branch prediction
Kojto 102:da0ca467f8b5 1269 __set_SCTLR( __get_SCTLR() | (1 << 11));
Kojto 102:da0ca467f8b5 1270 __ISB();
Kojto 102:da0ca467f8b5 1271 }
Kojto 102:da0ca467f8b5 1272
Kojto 102:da0ca467f8b5 1273 /** \brief Disable BTAC
Kojto 102:da0ca467f8b5 1274
Kojto 102:da0ca467f8b5 1275 Disable BTAC
Kojto 102:da0ca467f8b5 1276 */
Kojto 102:da0ca467f8b5 1277 __attribute__( ( always_inline ) ) __STATIC_INLINE void __disable_btac(void) {
Kojto 102:da0ca467f8b5 1278 // Clear Z bit 11 to disable branch prediction
Kojto 102:da0ca467f8b5 1279 __set_SCTLR( __get_SCTLR() & ~(1 << 11));
Kojto 102:da0ca467f8b5 1280 }
Kojto 102:da0ca467f8b5 1281
Kojto 102:da0ca467f8b5 1282
Kojto 102:da0ca467f8b5 1283 /** \brief Enable MMU
Kojto 102:da0ca467f8b5 1284
Kojto 102:da0ca467f8b5 1285 Enable MMU
Kojto 102:da0ca467f8b5 1286 */
Kojto 102:da0ca467f8b5 1287 __attribute__( ( always_inline ) ) __STATIC_INLINE void __enable_mmu(void) {
Kojto 102:da0ca467f8b5 1288 // Set M bit 0 to enable the MMU
Kojto 102:da0ca467f8b5 1289 // Set AFE bit to enable simplified access permissions model
Kojto 102:da0ca467f8b5 1290 // Clear TRE bit to disable TEX remap and A bit to disable strict alignment fault checking
Kojto 102:da0ca467f8b5 1291 __set_SCTLR( (__get_SCTLR() & ~(1 << 28) & ~(1 << 1)) | 1 | (1 << 29));
Kojto 102:da0ca467f8b5 1292 __ISB();
Kojto 102:da0ca467f8b5 1293 }
Kojto 102:da0ca467f8b5 1294
Kojto 108:34e6b704fe68 1295 /** \brief Disable MMU
Kojto 102:da0ca467f8b5 1296
Kojto 108:34e6b704fe68 1297 Disable MMU
Kojto 102:da0ca467f8b5 1298 */
Kojto 102:da0ca467f8b5 1299 __attribute__( ( always_inline ) ) __STATIC_INLINE void __disable_mmu(void) {
Kojto 102:da0ca467f8b5 1300 // Clear M bit 0 to disable the MMU
Kojto 102:da0ca467f8b5 1301 __set_SCTLR( __get_SCTLR() & ~1);
Kojto 102:da0ca467f8b5 1302 __ISB();
Kojto 102:da0ca467f8b5 1303 }
Kojto 102:da0ca467f8b5 1304
Kojto 102:da0ca467f8b5 1305 /******************************** TLB maintenance operations ************************************************/
Kojto 102:da0ca467f8b5 1306 /** \brief Invalidate the whole tlb
Kojto 102:da0ca467f8b5 1307
Kojto 102:da0ca467f8b5 1308 TLBIALL. Invalidate the whole tlb
Kojto 102:da0ca467f8b5 1309 */
Kojto 102:da0ca467f8b5 1310
Kojto 102:da0ca467f8b5 1311 __attribute__( ( always_inline ) ) __STATIC_INLINE void __ca9u_inv_tlb_all(void) {
Kojto 102:da0ca467f8b5 1312 #if 1
Kojto 102:da0ca467f8b5 1313 __ASM volatile ("mcr p15, 0, %0, c8, c7, 0" : : "r" (0));
Kojto 102:da0ca467f8b5 1314 #else
Kojto 102:da0ca467f8b5 1315 register uint32_t __TLBIALL __ASM("cp15:0:c8:c7:0");
Kojto 102:da0ca467f8b5 1316 __TLBIALL = 0;
Kojto 102:da0ca467f8b5 1317 #endif
Kojto 102:da0ca467f8b5 1318 __DSB();
Kojto 102:da0ca467f8b5 1319 __ISB();
Kojto 102:da0ca467f8b5 1320 }
Kojto 102:da0ca467f8b5 1321
Kojto 102:da0ca467f8b5 1322 /******************************** BTB maintenance operations ************************************************/
Kojto 102:da0ca467f8b5 1323 /** \brief Invalidate entire branch predictor array
Kojto 102:da0ca467f8b5 1324
Kojto 102:da0ca467f8b5 1325 BPIALL. Branch Predictor Invalidate All.
Kojto 102:da0ca467f8b5 1326 */
Kojto 102:da0ca467f8b5 1327
Kojto 102:da0ca467f8b5 1328 __attribute__( ( always_inline ) ) __STATIC_INLINE void __v7_inv_btac(void) {
Kojto 102:da0ca467f8b5 1329 #if 1
Kojto 102:da0ca467f8b5 1330 __ASM volatile ("mcr p15, 0, %0, c7, c5, 6" : : "r" (0));
Kojto 102:da0ca467f8b5 1331 #else
Kojto 102:da0ca467f8b5 1332 register uint32_t __BPIALL __ASM("cp15:0:c7:c5:6");
Kojto 102:da0ca467f8b5 1333 __BPIALL = 0;
Kojto 102:da0ca467f8b5 1334 #endif
Kojto 102:da0ca467f8b5 1335 __DSB(); //ensure completion of the invalidation
Kojto 102:da0ca467f8b5 1336 __ISB(); //ensure instruction fetch path sees new state
Kojto 102:da0ca467f8b5 1337 }
Kojto 102:da0ca467f8b5 1338
Kojto 102:da0ca467f8b5 1339
Kojto 102:da0ca467f8b5 1340 /******************************** L1 cache operations ******************************************************/
Kojto 102:da0ca467f8b5 1341
Kojto 102:da0ca467f8b5 1342 /** \brief Invalidate the whole I$
Kojto 102:da0ca467f8b5 1343
Kojto 102:da0ca467f8b5 1344 ICIALLU. Instruction Cache Invalidate All to PoU
Kojto 102:da0ca467f8b5 1345 */
Kojto 102:da0ca467f8b5 1346 __attribute__( ( always_inline ) ) __STATIC_INLINE void __v7_inv_icache_all(void) {
Kojto 102:da0ca467f8b5 1347 #if 1
Kojto 102:da0ca467f8b5 1348 __ASM volatile ("mcr p15, 0, %0, c7, c5, 0" : : "r" (0));
Kojto 102:da0ca467f8b5 1349 #else
Kojto 102:da0ca467f8b5 1350 register uint32_t __ICIALLU __ASM("cp15:0:c7:c5:0");
Kojto 102:da0ca467f8b5 1351 __ICIALLU = 0;
Kojto 102:da0ca467f8b5 1352 #endif
Kojto 102:da0ca467f8b5 1353 __DSB(); //ensure completion of the invalidation
Kojto 102:da0ca467f8b5 1354 __ISB(); //ensure instruction fetch path sees new I cache state
Kojto 102:da0ca467f8b5 1355 }
Kojto 102:da0ca467f8b5 1356
Kojto 102:da0ca467f8b5 1357 /** \brief Clean D$ by MVA
Kojto 102:da0ca467f8b5 1358
Kojto 102:da0ca467f8b5 1359 DCCMVAC. Data cache clean by MVA to PoC
Kojto 102:da0ca467f8b5 1360 */
Kojto 102:da0ca467f8b5 1361 __attribute__( ( always_inline ) ) __STATIC_INLINE void __v7_clean_dcache_mva(void *va) {
Kojto 102:da0ca467f8b5 1362 #if 1
Kojto 102:da0ca467f8b5 1363 __ASM volatile ("mcr p15, 0, %0, c7, c10, 1" : : "r" ((uint32_t)va));
Kojto 102:da0ca467f8b5 1364 #else
Kojto 102:da0ca467f8b5 1365 register uint32_t __DCCMVAC __ASM("cp15:0:c7:c10:1");
Kojto 102:da0ca467f8b5 1366 __DCCMVAC = (uint32_t)va;
Kojto 102:da0ca467f8b5 1367 #endif
Kojto 102:da0ca467f8b5 1368 __DMB(); //ensure the ordering of data cache maintenance operations and their effects
Kojto 102:da0ca467f8b5 1369 }
Kojto 102:da0ca467f8b5 1370
Kojto 102:da0ca467f8b5 1371 /** \brief Invalidate D$ by MVA
Kojto 102:da0ca467f8b5 1372
Kojto 102:da0ca467f8b5 1373 DCIMVAC. Data cache invalidate by MVA to PoC
Kojto 102:da0ca467f8b5 1374 */
Kojto 102:da0ca467f8b5 1375 __attribute__( ( always_inline ) ) __STATIC_INLINE void __v7_inv_dcache_mva(void *va) {
Kojto 102:da0ca467f8b5 1376 #if 1
Kojto 102:da0ca467f8b5 1377 __ASM volatile ("mcr p15, 0, %0, c7, c6, 1" : : "r" ((uint32_t)va));
Kojto 102:da0ca467f8b5 1378 #else
Kojto 102:da0ca467f8b5 1379 register uint32_t __DCIMVAC __ASM("cp15:0:c7:c6:1");
Kojto 102:da0ca467f8b5 1380 __DCIMVAC = (uint32_t)va;
Kojto 102:da0ca467f8b5 1381 #endif
Kojto 102:da0ca467f8b5 1382 __DMB(); //ensure the ordering of data cache maintenance operations and their effects
Kojto 102:da0ca467f8b5 1383 }
Kojto 102:da0ca467f8b5 1384
Kojto 102:da0ca467f8b5 1385 /** \brief Clean and Invalidate D$ by MVA
Kojto 102:da0ca467f8b5 1386
Kojto 102:da0ca467f8b5 1387 DCCIMVAC. Data cache clean and invalidate by MVA to PoC
Kojto 102:da0ca467f8b5 1388 */
Kojto 102:da0ca467f8b5 1389 __attribute__( ( always_inline ) ) __STATIC_INLINE void __v7_clean_inv_dcache_mva(void *va) {
Kojto 102:da0ca467f8b5 1390 #if 1
Kojto 102:da0ca467f8b5 1391 __ASM volatile ("mcr p15, 0, %0, c7, c14, 1" : : "r" ((uint32_t)va));
Kojto 102:da0ca467f8b5 1392 #else
Kojto 102:da0ca467f8b5 1393 register uint32_t __DCCIMVAC __ASM("cp15:0:c7:c14:1");
Kojto 102:da0ca467f8b5 1394 __DCCIMVAC = (uint32_t)va;
Kojto 102:da0ca467f8b5 1395 #endif
Kojto 102:da0ca467f8b5 1396 __DMB(); //ensure the ordering of data cache maintenance operations and their effects
Kojto 102:da0ca467f8b5 1397 }
Kojto 102:da0ca467f8b5 1398
Kojto 108:34e6b704fe68 1399 /** \brief Clean and Invalidate the entire data or unified cache
Kojto 102:da0ca467f8b5 1400
Kojto 108:34e6b704fe68 1401 Generic mechanism for cleaning/invalidating the entire data or unified cache to the point of coherency.
Kojto 102:da0ca467f8b5 1402 */
Kojto 102:da0ca467f8b5 1403 extern void __v7_all_cache(uint32_t op);
Kojto 102:da0ca467f8b5 1404
Kojto 102:da0ca467f8b5 1405
Kojto 102:da0ca467f8b5 1406 /** \brief Invalidate the whole D$
Kojto 102:da0ca467f8b5 1407
Kojto 102:da0ca467f8b5 1408 DCISW. Invalidate by Set/Way
Kojto 102:da0ca467f8b5 1409 */
Kojto 102:da0ca467f8b5 1410
Kojto 102:da0ca467f8b5 1411 __attribute__( ( always_inline ) ) __STATIC_INLINE void __v7_inv_dcache_all(void) {
Kojto 102:da0ca467f8b5 1412 __v7_all_cache(0);
Kojto 102:da0ca467f8b5 1413 }
Kojto 102:da0ca467f8b5 1414
Kojto 102:da0ca467f8b5 1415 /** \brief Clean the whole D$
Kojto 102:da0ca467f8b5 1416
Kojto 102:da0ca467f8b5 1417 DCCSW. Clean by Set/Way
Kojto 102:da0ca467f8b5 1418 */
Kojto 102:da0ca467f8b5 1419
Kojto 102:da0ca467f8b5 1420 __attribute__( ( always_inline ) ) __STATIC_INLINE void __v7_clean_dcache_all(void) {
Kojto 102:da0ca467f8b5 1421 __v7_all_cache(1);
Kojto 102:da0ca467f8b5 1422 }
Kojto 102:da0ca467f8b5 1423
Kojto 102:da0ca467f8b5 1424 /** \brief Clean and invalidate the whole D$
Kojto 102:da0ca467f8b5 1425
Kojto 102:da0ca467f8b5 1426 DCCISW. Clean and Invalidate by Set/Way
Kojto 102:da0ca467f8b5 1427 */
Kojto 102:da0ca467f8b5 1428
Kojto 102:da0ca467f8b5 1429 __attribute__( ( always_inline ) ) __STATIC_INLINE void __v7_clean_inv_dcache_all(void) {
Kojto 102:da0ca467f8b5 1430 __v7_all_cache(2);
Kojto 102:da0ca467f8b5 1431 }
Kojto 102:da0ca467f8b5 1432
Kojto 102:da0ca467f8b5 1433 #include "core_ca_mmu.h"
Kojto 102:da0ca467f8b5 1434
Kojto 102:da0ca467f8b5 1435 #elif (defined (__TASKING__)) /*--------------- TASKING Compiler -----------------*/
Kojto 102:da0ca467f8b5 1436
Kojto 102:da0ca467f8b5 1437 #error TASKING Compiler support not implemented for Cortex-A
Kojto 102:da0ca467f8b5 1438
Kojto 102:da0ca467f8b5 1439 #endif
Kojto 102:da0ca467f8b5 1440
Kojto 102:da0ca467f8b5 1441 /*@} end of CMSIS_Core_RegAccFunctions */
Kojto 102:da0ca467f8b5 1442
Kojto 102:da0ca467f8b5 1443
Kojto 102:da0ca467f8b5 1444 #endif /* __CORE_CAFUNC_H__ */