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Last commit 20 Feb 2019 by mbed official

targets/cmsis/TARGET_RENESAS/TARGET_RZ_A1H/mmu_Renesas_RZ_A1.c@579:53297373a894, 2015-07-01 (annotated)

Committer:
mbed_official
Date:
Wed Jul 01 09:45:11 2015 +0100
Revision:
579:53297373a894
Parent:
482:d9a48e768ce0 
Synchronized with git revision d5b4d2ab9c47edb4dc5776e7177b0c2263459081



Full URL: https://github.com/mbedmicro/mbed/commit/d5b4d2ab9c47edb4dc5776e7177b0c2263459081/



Initial version of drivers for SAMR21

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 390:35c2c1cf29cd 1 /**************************************************************************//**
mbed_official 390:35c2c1cf29cd 2 * @file mmu_Renesas_RZ_A1.c
mbed_official 390:35c2c1cf29cd 3 * @brief MMU Startup File for
mbed_official 390:35c2c1cf29cd 4 * mmu_Renesas_RZ_A1 Device Series
mbed_official 390:35c2c1cf29cd 5 * @version V1.01
mbed_official 390:35c2c1cf29cd 6 * @date 2 Aug 2013
mbed_official 390:35c2c1cf29cd 7 *
mbed_official 390:35c2c1cf29cd 8 * @note
mbed_official 390:35c2c1cf29cd 9 *
mbed_official 390:35c2c1cf29cd 10 ******************************************************************************/
mbed_official 390:35c2c1cf29cd 11 /* Copyright (c) 2011 - 2013 ARM LIMITED
mbed_official 390:35c2c1cf29cd 12
mbed_official 390:35c2c1cf29cd 13 All rights reserved.
mbed_official 390:35c2c1cf29cd 14 Redistribution and use in source and binary forms, with or without
mbed_official 390:35c2c1cf29cd 15 modification, are permitted provided that the following conditions are met:
mbed_official 390:35c2c1cf29cd 16 - Redistributions of source code must retain the above copyright
mbed_official 390:35c2c1cf29cd 17 notice, this list of conditions and the following disclaimer.
mbed_official 390:35c2c1cf29cd 18 - Redistributions in binary form must reproduce the above copyright
mbed_official 390:35c2c1cf29cd 19 notice, this list of conditions and the following disclaimer in the
mbed_official 390:35c2c1cf29cd 20 documentation and/or other materials provided with the distribution.
mbed_official 390:35c2c1cf29cd 21 - Neither the name of ARM nor the names of its contributors may be used
mbed_official 390:35c2c1cf29cd 22 to endorse or promote products derived from this software without
mbed_official 390:35c2c1cf29cd 23 specific prior written permission.
mbed_official 390:35c2c1cf29cd 24 *
mbed_official 390:35c2c1cf29cd 25 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 390:35c2c1cf29cd 26 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 390:35c2c1cf29cd 27 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
mbed_official 390:35c2c1cf29cd 28 ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
mbed_official 390:35c2c1cf29cd 29 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
mbed_official 390:35c2c1cf29cd 30 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
mbed_official 390:35c2c1cf29cd 31 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
mbed_official 390:35c2c1cf29cd 32 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
mbed_official 390:35c2c1cf29cd 33 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
mbed_official 390:35c2c1cf29cd 34 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
mbed_official 390:35c2c1cf29cd 35 POSSIBILITY OF SUCH DAMAGE.
mbed_official 390:35c2c1cf29cd 36 ---------------------------------------------------------------------------*/
mbed_official 390:35c2c1cf29cd 37
mbed_official 390:35c2c1cf29cd 38
mbed_official 390:35c2c1cf29cd 39 #define Renesas_RZ_A1_SPI_MIO_BASE (0x3fe00000UL) /*!< (SPI_MIO ) Base Address */
mbed_official 390:35c2c1cf29cd 40 #define Renesas_RZ_A1_BSC_BASE (0x3ff00000UL) /*!< (BSC ) Base Address */
mbed_official 390:35c2c1cf29cd 41 #define Renesas_RZ_A1_PERIPH_BASE0 (0xe8000000UL) /*!< (PERIPH0 ) Base Address */
mbed_official 390:35c2c1cf29cd 42 #define Renesas_RZ_A1_PERIPH_BASE1 (0xfcf00000UL) /*!< (PERIPH1 ) Base Address */
mbed_official 390:35c2c1cf29cd 43 // L1 Cache info and restrictions about architecture of the caches (CCSIR register):
mbed_official 390:35c2c1cf29cd 44 // Write-Through support *not* available
mbed_official 390:35c2c1cf29cd 45 // Write-Back support available.
mbed_official 390:35c2c1cf29cd 46 // Read allocation support available.
mbed_official 390:35c2c1cf29cd 47 // Write allocation support available.
mbed_official 390:35c2c1cf29cd 48
mbed_official 390:35c2c1cf29cd 49 //Note: You should use the Shareable attribute carefully.
mbed_official 390:35c2c1cf29cd 50 //For cores without coherency logic (such as SCU) marking a region as shareable forces the processor to not cache that region regardless the inner cache settings.
mbed_official 390:35c2c1cf29cd 51 //CA9-RTX uses LDREX/STREX instructions relying on Local monitors. Local monitors will be used only when the region gets cached, regions that are not cached will use the Global Monitor.
mbed_official 390:35c2c1cf29cd 52 //Some A9 implementations does not include Global Monitors, so wrongly setting the attribute Shareable may cause STREX to fail.
mbed_official 390:35c2c1cf29cd 53
mbed_official 390:35c2c1cf29cd 54 //Recall: When the Shareable attribute is applied to a memory region that is not Write-Back, Normal memory, data held in this region is treated as Non-cacheable.
mbed_official 390:35c2c1cf29cd 55 //When SMP bit = 0, Inner WB/WA Cacheable Shareable attributes are treated as Non-cacheable.
mbed_official 390:35c2c1cf29cd 56 //When SMP bit = 1, Inner WB/WA Cacheable Shareable attributes are treated as Cacheable.
mbed_official 390:35c2c1cf29cd 57
mbed_official 390:35c2c1cf29cd 58
mbed_official 390:35c2c1cf29cd 59 //Following MMU configuration is expected
mbed_official 390:35c2c1cf29cd 60 //SCTLR.AFE == 1 (Simplified access permissions model - AP[2:1] define access permissions, AP[0] is an access flag)
mbed_official 390:35c2c1cf29cd 61 //SCTLR.TRE == 0 (TEX remap disabled, so memory type and attributes are described directly by bits in the descriptor)
mbed_official 390:35c2c1cf29cd 62 //Domain 0 is always the Client domain
mbed_official 390:35c2c1cf29cd 63 //Descriptors place all memory in domain 0
mbed_official 390:35c2c1cf29cd 64 //There are no restrictions by privilege level (PL0 can access all memory)
mbed_official 390:35c2c1cf29cd 65
mbed_official 390:35c2c1cf29cd 66 #include <stdint.h>
mbed_official 390:35c2c1cf29cd 67 #include "MBRZA1H.h"
mbed_official 390:35c2c1cf29cd 68
mbed_official 390:35c2c1cf29cd 69 //Import symbols from linker
mbed_official 390:35c2c1cf29cd 70 extern uint32_t Image$$VECTORS$$Base;
mbed_official 390:35c2c1cf29cd 71 extern uint32_t Image$$RO_DATA$$Base;
mbed_official 390:35c2c1cf29cd 72 extern uint32_t Image$$RW_DATA$$Base;
mbed_official 390:35c2c1cf29cd 73 extern uint32_t Image$$ZI_DATA$$Base;
mbed_official 390:35c2c1cf29cd 74 extern uint32_t Image$$TTB$$ZI$$Base;
mbed_official 482:d9a48e768ce0 75 #if defined( __CC_ARM )
mbed_official 482:d9a48e768ce0 76 #else
mbed_official 482:d9a48e768ce0 77 extern uint32_t Image$$RW_DATA_NC$$Base;
mbed_official 482:d9a48e768ce0 78 extern uint32_t Image$$ZI_DATA_NC$$Base;
mbed_official 482:d9a48e768ce0 79 #endif
mbed_official 390:35c2c1cf29cd 80
mbed_official 409:a95c696104d3 81 extern uint32_t Image$$VECTORS$$Limit;
mbed_official 409:a95c696104d3 82 extern uint32_t Image$$RO_DATA$$Limit;
mbed_official 409:a95c696104d3 83 extern uint32_t Image$$RW_DATA$$Limit;
mbed_official 409:a95c696104d3 84 extern uint32_t Image$$ZI_DATA$$Limit;
mbed_official 482:d9a48e768ce0 85 #if defined( __CC_ARM )
mbed_official 482:d9a48e768ce0 86 #else
mbed_official 482:d9a48e768ce0 87 extern uint32_t Image$$RW_DATA_NC$$Limit;
mbed_official 482:d9a48e768ce0 88 extern uint32_t Image$$ZI_DATA_NC$$Limit;
mbed_official 482:d9a48e768ce0 89 #endif
mbed_official 409:a95c696104d3 90
mbed_official 482:d9a48e768ce0 91 #define VECTORS_SIZE (((uint32_t)&Image$$VECTORS$$Limit >> 20) - ((uint32_t)&Image$$VECTORS$$Base >> 20) + 1)
mbed_official 482:d9a48e768ce0 92 #define RO_DATA_SIZE (((uint32_t)&Image$$RO_DATA$$Limit >> 20) - ((uint32_t)&Image$$RO_DATA$$Base >> 20) + 1)
mbed_official 482:d9a48e768ce0 93 #define RW_DATA_SIZE (((uint32_t)&Image$$RW_DATA$$Limit >> 20) - ((uint32_t)&Image$$RW_DATA$$Base >> 20) + 1)
mbed_official 482:d9a48e768ce0 94 #define ZI_DATA_SIZE (((uint32_t)&Image$$ZI_DATA$$Limit >> 20) - ((uint32_t)&Image$$ZI_DATA$$Base >> 20) + 1)
mbed_official 482:d9a48e768ce0 95 #if defined( __CC_ARM )
mbed_official 482:d9a48e768ce0 96 #else
mbed_official 482:d9a48e768ce0 97 #define RW_DATA_NC_SIZE (((uint32_t)&Image$$RW_DATA_NC$$Limit >> 20) - ((uint32_t)&Image$$RW_DATA_NC$$Base >> 20) + 1)
mbed_official 482:d9a48e768ce0 98 #define ZI_DATA_NC_SIZE (((uint32_t)&Image$$ZI_DATA_NC$$Limit >> 20) - ((uint32_t)&Image$$ZI_DATA_NC$$Base >> 20) + 1)
mbed_official 482:d9a48e768ce0 99 #endif
mbed_official 409:a95c696104d3 100
mbed_official 390:35c2c1cf29cd 101 static uint32_t Sect_Normal; //outer & inner wb/wa, non-shareable, executable, rw, domain 0, base addr 0
mbed_official 390:35c2c1cf29cd 102 static uint32_t Sect_Normal_NC; //non-shareable, non-executable, rw, domain 0, base addr 0
mbed_official 390:35c2c1cf29cd 103 static uint32_t Sect_Normal_Cod; //outer & inner wb/wa, non-shareable, executable, ro, domain 0, base addr 0
mbed_official 390:35c2c1cf29cd 104 static uint32_t Sect_Normal_RO; //as Sect_Normal_Cod, but not executable
mbed_official 390:35c2c1cf29cd 105 static uint32_t Sect_Normal_RW; //as Sect_Normal_Cod, but writeable and not executable
mbed_official 390:35c2c1cf29cd 106 static uint32_t Sect_Device_RO; //device, non-shareable, non-executable, ro, domain 0, base addr 0
mbed_official 390:35c2c1cf29cd 107 static uint32_t Sect_Device_RW; //as Sect_Device_RO, but writeable
mbed_official 390:35c2c1cf29cd 108
mbed_official 390:35c2c1cf29cd 109 /* Define global descriptors */
mbed_official 390:35c2c1cf29cd 110 static uint32_t Page_L1_4k = 0x0; //generic
mbed_official 390:35c2c1cf29cd 111 static uint32_t Page_L1_64k = 0x0; //generic
mbed_official 390:35c2c1cf29cd 112 static uint32_t Page_4k_Device_RW; //Shared device, not executable, rw, domain 0
mbed_official 390:35c2c1cf29cd 113 static uint32_t Page_64k_Device_RW; //Shared device, not executable, rw, domain 0
mbed_official 390:35c2c1cf29cd 114
mbed_official 390:35c2c1cf29cd 115 void create_translation_table(void)
mbed_official 390:35c2c1cf29cd 116 {
mbed_official 390:35c2c1cf29cd 117 mmu_region_attributes_Type region;
mbed_official 390:35c2c1cf29cd 118
mbed_official 390:35c2c1cf29cd 119 /*
mbed_official 390:35c2c1cf29cd 120 * Generate descriptors. Refer to MBRZA1H.h to get information about attributes
mbed_official 390:35c2c1cf29cd 121 *
mbed_official 390:35c2c1cf29cd 122 */
mbed_official 390:35c2c1cf29cd 123 //Create descriptors for Vectors, RO, RW, ZI sections
mbed_official 390:35c2c1cf29cd 124 section_normal(Sect_Normal, region);
mbed_official 390:35c2c1cf29cd 125 section_normal_cod(Sect_Normal_Cod, region);
mbed_official 390:35c2c1cf29cd 126 section_normal_ro(Sect_Normal_RO, region);
mbed_official 390:35c2c1cf29cd 127 section_normal_rw(Sect_Normal_RW, region);
mbed_official 390:35c2c1cf29cd 128 //Create descriptors for peripherals
mbed_official 390:35c2c1cf29cd 129 section_device_ro(Sect_Device_RO, region);
mbed_official 390:35c2c1cf29cd 130 section_device_rw(Sect_Device_RW, region);
mbed_official 390:35c2c1cf29cd 131 section_normal_nc(Sect_Normal_NC, region);
mbed_official 390:35c2c1cf29cd 132 //Create descriptors for 64k pages
mbed_official 390:35c2c1cf29cd 133 page64k_device_rw(Page_L1_64k, Page_64k_Device_RW, region);
mbed_official 390:35c2c1cf29cd 134 //Create descriptors for 4k pages
mbed_official 390:35c2c1cf29cd 135 page4k_device_rw(Page_L1_4k, Page_4k_Device_RW, region);
mbed_official 390:35c2c1cf29cd 136
mbed_official 390:35c2c1cf29cd 137 /*
mbed_official 390:35c2c1cf29cd 138 * Define MMU flat-map regions and attributes
mbed_official 390:35c2c1cf29cd 139 *
mbed_official 390:35c2c1cf29cd 140 */
mbed_official 390:35c2c1cf29cd 141
mbed_official 390:35c2c1cf29cd 142 //Create 4GB of faulting entries
mbed_official 390:35c2c1cf29cd 143 __TTSection (&Image$$TTB$$ZI$$Base, 0, 4096, DESCRIPTOR_FAULT);
mbed_official 390:35c2c1cf29cd 144
mbed_official 390:35c2c1cf29cd 145 // R7S72100 memory map.
mbed_official 390:35c2c1cf29cd 146 __TTSection (&Image$$TTB$$ZI$$Base, Renesas_RZ_A1_NORFLASH_BASE0 , 64, Sect_Normal_RO);
mbed_official 390:35c2c1cf29cd 147 __TTSection (&Image$$TTB$$ZI$$Base, Renesas_RZ_A1_NORFLASH_BASE1 , 64, Sect_Normal_RO);
mbed_official 390:35c2c1cf29cd 148 __TTSection (&Image$$TTB$$ZI$$Base, Renesas_RZ_A1_SDRAM_BASE0 , 64, Sect_Normal_RW);
mbed_official 390:35c2c1cf29cd 149 __TTSection (&Image$$TTB$$ZI$$Base, Renesas_RZ_A1_SDRAM_BASE1 , 64, Sect_Normal_RW);
mbed_official 390:35c2c1cf29cd 150 __TTSection (&Image$$TTB$$ZI$$Base, Renesas_RZ_A1_USER_AREA0 , 64, Sect_Normal_RW);
mbed_official 390:35c2c1cf29cd 151 __TTSection (&Image$$TTB$$ZI$$Base, Renesas_RZ_A1_USER_AREA1 , 64, Sect_Normal_RW);
mbed_official 390:35c2c1cf29cd 152 __TTSection (&Image$$TTB$$ZI$$Base, Renesas_RZ_A1_SPI_IO0 , 64, Sect_Normal_RO);
mbed_official 390:35c2c1cf29cd 153 __TTSection (&Image$$TTB$$ZI$$Base, Renesas_RZ_A1_SPI_IO1 , 64, Sect_Normal_RO);
mbed_official 390:35c2c1cf29cd 154 __TTSection (&Image$$TTB$$ZI$$Base, Renesas_RZ_A1_ONCHIP_SRAM_BASE , 10, Sect_Normal_RW);
mbed_official 390:35c2c1cf29cd 155 __TTSection (&Image$$TTB$$ZI$$Base, Renesas_RZ_A1_SPI_MIO_BASE , 1, Sect_Device_RW);
mbed_official 390:35c2c1cf29cd 156 __TTSection (&Image$$TTB$$ZI$$Base, Renesas_RZ_A1_BSC_BASE , 1, Sect_Device_RW);
mbed_official 390:35c2c1cf29cd 157 __TTSection (&Image$$TTB$$ZI$$Base, Renesas_RZ_A1_PERIPH_BASE0 , 3, Sect_Device_RW);
mbed_official 390:35c2c1cf29cd 158 __TTSection (&Image$$TTB$$ZI$$Base, Renesas_RZ_A1_PERIPH_BASE1 , 49, Sect_Device_RW);
mbed_official 390:35c2c1cf29cd 159
mbed_official 390:35c2c1cf29cd 160 //Define Image
mbed_official 409:a95c696104d3 161 __TTSection (&Image$$TTB$$ZI$$Base, (uint32_t)&Image$$RO_DATA$$Base, RO_DATA_SIZE, Sect_Normal_RO);
mbed_official 409:a95c696104d3 162 __TTSection (&Image$$TTB$$ZI$$Base, (uint32_t)&Image$$VECTORS$$Base, VECTORS_SIZE, Sect_Normal_Cod);
mbed_official 409:a95c696104d3 163 __TTSection (&Image$$TTB$$ZI$$Base, (uint32_t)&Image$$RW_DATA$$Base, RW_DATA_SIZE, Sect_Normal_RW);
mbed_official 409:a95c696104d3 164 __TTSection (&Image$$TTB$$ZI$$Base, (uint32_t)&Image$$ZI_DATA$$Base, ZI_DATA_SIZE, Sect_Normal_RW);
mbed_official 482:d9a48e768ce0 165 #if defined( __CC_ARM )
mbed_official 409:a95c696104d3 166 __TTSection (&Image$$TTB$$ZI$$Base, Renesas_RZ_A1_ONCHIP_SRAM_NC_BASE, 10, Sect_Normal_NC);
mbed_official 482:d9a48e768ce0 167 #else
mbed_official 482:d9a48e768ce0 168 __TTSection (&Image$$TTB$$ZI$$Base, (uint32_t)&Image$$RW_DATA_NC$$Base, RW_DATA_NC_SIZE, Sect_Normal_NC);
mbed_official 482:d9a48e768ce0 169 __TTSection (&Image$$TTB$$ZI$$Base, (uint32_t)&Image$$ZI_DATA_NC$$Base, ZI_DATA_NC_SIZE, Sect_Normal_NC);
mbed_official 482:d9a48e768ce0 170 #endif
mbed_official 390:35c2c1cf29cd 171
mbed_official 390:35c2c1cf29cd 172 /* Set location of level 1 page table
mbed_official 390:35c2c1cf29cd 173 ; 31:14 - Translation table base addr (31:14-TTBCR.N, TTBCR.N is 0 out of reset)
mbed_official 390:35c2c1cf29cd 174 ; 13:7 - 0x0
mbed_official 390:35c2c1cf29cd 175 ; 6 - IRGN[0] 0x0 (Inner WB WA)
mbed_official 390:35c2c1cf29cd 176 ; 5 - NOS 0x0 (Non-shared)
mbed_official 390:35c2c1cf29cd 177 ; 4:3 - RGN 0x1 (Outer WB WA)
mbed_official 390:35c2c1cf29cd 178 ; 2 - IMP 0x0 (Implementation Defined)
mbed_official 390:35c2c1cf29cd 179 ; 1 - S 0x0 (Non-shared)
mbed_official 390:35c2c1cf29cd 180 ; 0 - IRGN[1] 0x1 (Inner WB WA) */
mbed_official 390:35c2c1cf29cd 181 __set_TTBR0(((uint32_t)&Image$$TTB$$ZI$$Base) | 9);
mbed_official 390:35c2c1cf29cd 182
mbed_official 390:35c2c1cf29cd 183 /* Set up domain access control register
mbed_official 390:35c2c1cf29cd 184 ; We set domain 0 to Client and all other domains to No Access.
mbed_official 390:35c2c1cf29cd 185 ; All translation table entries specify domain 0 */
mbed_official 390:35c2c1cf29cd 186 __set_DACR(1);
mbed_official 390:35c2c1cf29cd 187 }
mbed_official 390:35c2c1cf29cd 188
mbed_official 390:35c2c1cf29cd 189
mbed_official 390:35c2c1cf29cd 190 /*----------------------------------------------------------------------------
mbed_official 390:35c2c1cf29cd 191 * end of file
mbed_official 390:35c2c1cf29cd 192 *---------------------------------------------------------------------------*/