[dc0a7df] | 1 | /** |
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| 2 | * @file |
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| 3 | * |
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| 4 | * @ingroup QorIQMMU |
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| 5 | * |
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| 6 | * @brief MMU implementation. |
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| 7 | */ |
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| 8 | |
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| 9 | /* |
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[bd39add] | 10 | * Copyright (c) 2011-2013 embedded brains GmbH. All rights reserved. |
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[dc0a7df] | 11 | * |
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| 12 | * embedded brains GmbH |
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[bd39add] | 13 | * Dornierstr. 4 |
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[dc0a7df] | 14 | * 82178 Puchheim |
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| 15 | * Germany |
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| 16 | * <rtems@embedded-brains.de> |
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| 17 | * |
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| 18 | * The license and distribution terms for this file may be |
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| 19 | * found in the file LICENSE in this distribution or at |
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| 20 | * http://www.rtems.com/license/LICENSE. |
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| 21 | */ |
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| 22 | |
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[bd39add] | 23 | #include <bsp.h> |
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[dc0a7df] | 24 | #include <bsp/mmu.h> |
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| 25 | #include <bsp/linker-symbols.h> |
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| 26 | #include <bsp/qoriq.h> |
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| 27 | |
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| 28 | #define TEXT __attribute__((section(".bsp_start_text"))) |
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| 29 | #define DATA __attribute__((section(".bsp_start_data"))) |
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| 30 | |
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| 31 | typedef struct { |
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| 32 | uint32_t begin; |
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| 33 | uint32_t size; |
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| 34 | uint32_t mas2; |
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| 35 | uint32_t mas3; |
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| 36 | } entry; |
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| 37 | |
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| 38 | #define ENTRY_X(b, s) { \ |
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| 39 | .begin = (uint32_t) b, \ |
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| 40 | .size = (uint32_t) s, \ |
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| 41 | .mas2 = 0, \ |
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| 42 | .mas3 = FSL_EIS_MAS3_SR | FSL_EIS_MAS3_SX \ |
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| 43 | } |
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| 44 | |
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| 45 | #define ENTRY_R(b, s) { \ |
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| 46 | .begin = (uint32_t) b, \ |
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| 47 | .size = (uint32_t) s, \ |
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| 48 | .mas2 = 0, \ |
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| 49 | .mas3 = FSL_EIS_MAS3_SR \ |
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| 50 | } |
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| 51 | |
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[bd39add] | 52 | #ifdef RTEMS_SMP |
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| 53 | #define ENTRY_RW_MAS2 FSL_EIS_MAS2_M |
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| 54 | #else |
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| 55 | #define ENTRY_RW_MAS2 0 |
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| 56 | #endif |
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| 57 | |
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[dc0a7df] | 58 | #define ENTRY_RW(b, s) { \ |
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| 59 | .begin = (uint32_t) b, \ |
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| 60 | .size = (uint32_t) s, \ |
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[bd39add] | 61 | .mas2 = ENTRY_RW_MAS2, \ |
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[dc0a7df] | 62 | .mas3 = FSL_EIS_MAS3_SR | FSL_EIS_MAS3_SW \ |
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| 63 | } |
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| 64 | |
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| 65 | #define ENTRY_DEV(b, s) { \ |
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| 66 | .begin = (uint32_t) b, \ |
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| 67 | .size = (uint32_t) s, \ |
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| 68 | .mas2 = FSL_EIS_MAS2_I | FSL_EIS_MAS2_G, \ |
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| 69 | .mas3 = FSL_EIS_MAS3_SR | FSL_EIS_MAS3_SW \ |
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| 70 | } |
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| 71 | |
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| 72 | static const entry DATA config [] = { |
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| 73 | #if defined(QORIQ_INTERCOM_AREA_BEGIN) && defined(QORIQ_INTERCOM_AREA_SIZE) |
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| 74 | { |
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| 75 | .begin = QORIQ_INTERCOM_AREA_BEGIN, |
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| 76 | .size = QORIQ_INTERCOM_AREA_SIZE, |
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| 77 | .mas2 = FSL_EIS_MAS2_M, |
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| 78 | .mas3 = FSL_EIS_MAS3_SR | FSL_EIS_MAS3_SW |
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| 79 | }, |
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| 80 | #endif |
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| 81 | ENTRY_X(bsp_section_start_begin, bsp_section_start_size), |
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| 82 | ENTRY_R(bsp_section_fast_text_load_begin, bsp_section_fast_text_size), |
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| 83 | ENTRY_X(bsp_section_fast_text_begin, bsp_section_fast_text_size), |
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| 84 | ENTRY_X(bsp_section_text_begin, bsp_section_text_size), |
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| 85 | ENTRY_R(bsp_section_rodata_load_begin, bsp_section_rodata_size), |
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| 86 | ENTRY_R(bsp_section_rodata_begin, bsp_section_rodata_size), |
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[cab410f] | 87 | ENTRY_R(bsp_section_sdata2_load_begin, bsp_section_sdata2_size), |
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| 88 | ENTRY_R(bsp_section_sdata2_begin, bsp_section_sdata2_size), |
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[dc0a7df] | 89 | ENTRY_R(bsp_section_fast_data_load_begin, bsp_section_fast_data_size), |
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| 90 | ENTRY_RW(bsp_section_fast_data_begin, bsp_section_fast_data_size), |
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| 91 | ENTRY_R(bsp_section_data_load_begin, bsp_section_data_size), |
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| 92 | ENTRY_RW(bsp_section_data_begin, bsp_section_data_size), |
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[cab410f] | 93 | ENTRY_R(bsp_section_sdata_load_begin, bsp_section_sdata_size), |
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| 94 | ENTRY_RW(bsp_section_sdata_begin, bsp_section_sdata_size), |
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[dc0a7df] | 95 | ENTRY_RW(bsp_section_sbss_begin, bsp_section_sbss_size), |
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| 96 | ENTRY_RW(bsp_section_bss_begin, bsp_section_bss_size), |
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| 97 | ENTRY_RW(bsp_section_rwextra_begin, bsp_section_rwextra_size), |
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| 98 | ENTRY_RW(bsp_section_work_begin, bsp_section_work_size), |
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| 99 | ENTRY_RW(bsp_section_stack_begin, bsp_section_stack_size), |
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| 100 | ENTRY_DEV(&qoriq, sizeof(qoriq)) |
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| 101 | }; |
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| 102 | |
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| 103 | void TEXT qoriq_mmu_config(int first_tlb, int scratch_tlb) |
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| 104 | { |
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| 105 | qoriq_mmu_context context; |
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| 106 | int i = 0; |
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| 107 | |
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| 108 | qoriq_mmu_context_init(&context); |
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| 109 | |
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| 110 | for (i = 0; i < 16; ++i) { |
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| 111 | if (i != scratch_tlb) { |
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| 112 | qoriq_tlb1_invalidate(i); |
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| 113 | } |
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| 114 | } |
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| 115 | |
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| 116 | for (i = 0; i < (int) (sizeof(config) / sizeof(config [0])); ++i) { |
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| 117 | const entry *cur = &config [i]; |
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| 118 | if (cur->size > 0) { |
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| 119 | qoriq_mmu_add( |
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| 120 | &context, |
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| 121 | cur->begin, |
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| 122 | cur->begin + cur->size - 1, |
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| 123 | 0, |
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| 124 | cur->mas2, |
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| 125 | cur->mas3 |
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| 126 | ); |
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| 127 | } |
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| 128 | } |
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| 129 | |
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| 130 | qoriq_mmu_partition(&context, 8); |
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| 131 | qoriq_mmu_write_to_tlb1(&context, first_tlb); |
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| 132 | } |
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