[a91dc98b] | 1 | /* |
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| 2 | * Copyright (c) 2013 embedded brains GmbH. All rights reserved. |
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| 3 | * |
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| 4 | * embedded brains GmbH |
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| 5 | * Dornierstr. 4 |
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| 6 | * 82178 Puchheim |
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| 7 | * Germany |
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| 8 | * <info@embedded-brains.de> |
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| 9 | * |
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| 10 | * The license and distribution terms for this file may be |
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| 11 | * found in the file LICENSE in this distribution or at |
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| 12 | * http://www.rtems.com/license/LICENSE. |
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| 13 | */ |
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| 14 | |
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| 15 | #include <bsp.h> |
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| 16 | #include <bsp/start.h> |
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| 17 | #include <bsp/arm-cp15-start.h> |
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[db42c079] | 18 | #include <bsp/arm-a9mpcore-start.h> |
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[a91dc98b] | 19 | #include <bsp/linker-symbols.h> |
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| 20 | |
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[db42c079] | 21 | #ifdef RTEMS_SMP |
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| 22 | #define MMU_DATA_READ_WRITE ARMV7_MMU_DATA_READ_WRITE_SHAREABLE |
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| 23 | #else |
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| 24 | #define MMU_DATA_READ_WRITE ARMV7_MMU_DATA_READ_WRITE_CACHED |
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| 25 | #endif |
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[a91dc98b] | 26 | |
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| 27 | BSP_START_DATA_SECTION static const arm_cp15_start_section_config |
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| 28 | rvpbxa9_mmu_config_table[] = { |
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| 29 | { |
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| 30 | .begin = (uint32_t) bsp_section_fast_text_begin, |
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| 31 | .end = (uint32_t) bsp_section_fast_text_end, |
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[1dcf5fe] | 32 | .flags = ARMV7_MMU_CODE_CACHED |
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[a91dc98b] | 33 | }, { |
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| 34 | .begin = (uint32_t) bsp_section_fast_data_begin, |
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| 35 | .end = (uint32_t) bsp_section_fast_data_end, |
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[db42c079] | 36 | .flags = MMU_DATA_READ_WRITE |
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[a91dc98b] | 37 | }, { |
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| 38 | .begin = (uint32_t) bsp_section_start_begin, |
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| 39 | .end = (uint32_t) bsp_section_start_end, |
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[1dcf5fe] | 40 | .flags = ARMV7_MMU_CODE_CACHED |
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[a91dc98b] | 41 | }, { |
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| 42 | .begin = (uint32_t) bsp_section_vector_begin, |
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| 43 | .end = (uint32_t) bsp_section_vector_end, |
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[db42c079] | 44 | .flags = MMU_DATA_READ_WRITE |
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[a91dc98b] | 45 | }, { |
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| 46 | .begin = (uint32_t) bsp_section_text_begin, |
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| 47 | .end = (uint32_t) bsp_section_text_end, |
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[1dcf5fe] | 48 | .flags = ARMV7_MMU_CODE_CACHED |
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[a91dc98b] | 49 | }, { |
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| 50 | .begin = (uint32_t) bsp_section_rodata_begin, |
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| 51 | .end = (uint32_t) bsp_section_rodata_end, |
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[1dcf5fe] | 52 | .flags = ARMV7_MMU_DATA_READ_ONLY_CACHED |
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[a91dc98b] | 53 | }, { |
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| 54 | .begin = (uint32_t) bsp_section_data_begin, |
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| 55 | .end = (uint32_t) bsp_section_data_end, |
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[db42c079] | 56 | .flags = MMU_DATA_READ_WRITE |
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[a91dc98b] | 57 | }, { |
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| 58 | .begin = (uint32_t) bsp_section_bss_begin, |
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| 59 | .end = (uint32_t) bsp_section_bss_end, |
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[db42c079] | 60 | .flags = MMU_DATA_READ_WRITE |
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[a91dc98b] | 61 | }, { |
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| 62 | .begin = (uint32_t) bsp_section_work_begin, |
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| 63 | .end = (uint32_t) bsp_section_work_end, |
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[db42c079] | 64 | .flags = MMU_DATA_READ_WRITE |
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[a91dc98b] | 65 | }, { |
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| 66 | .begin = (uint32_t) bsp_section_stack_begin, |
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| 67 | .end = (uint32_t) bsp_section_stack_end, |
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[db42c079] | 68 | .flags = MMU_DATA_READ_WRITE |
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[a91dc98b] | 69 | }, { |
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| 70 | .begin = 0x10000000U, |
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| 71 | .end = 0x10020000U, |
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[1dcf5fe] | 72 | .flags = ARMV7_MMU_DEVICE |
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[a91dc98b] | 73 | }, { |
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| 74 | .begin = 0x1f000000U, |
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| 75 | .end = 0x20000000U, |
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[1dcf5fe] | 76 | .flags = ARMV7_MMU_DEVICE |
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[a91dc98b] | 77 | } |
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| 78 | }; |
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| 79 | |
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| 80 | BSP_START_TEXT_SECTION static void setup_mmu_and_cache(void) |
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| 81 | { |
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| 82 | uint32_t ctrl = arm_cp15_start_setup_mmu_and_cache( |
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| 83 | 0, |
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| 84 | ARM_CP15_CTRL_AFE | ARM_CP15_CTRL_Z |
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| 85 | ); |
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| 86 | |
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[1df348b] | 87 | arm_cp15_start_setup_translation_table_and_enable_mmu_and_cache( |
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[a91dc98b] | 88 | ctrl, |
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| 89 | (uint32_t *) bsp_translation_table_base, |
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[1dcf5fe] | 90 | ARM_MMU_DEFAULT_CLIENT_DOMAIN, |
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[a91dc98b] | 91 | &rvpbxa9_mmu_config_table[0], |
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| 92 | RTEMS_ARRAY_SIZE(rvpbxa9_mmu_config_table) |
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| 93 | ); |
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| 94 | } |
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| 95 | |
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[db42c079] | 96 | BSP_START_TEXT_SECTION void bsp_start_hook_0(void) |
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| 97 | { |
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| 98 | arm_a9mpcore_start_hook_0(); |
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| 99 | } |
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| 100 | |
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[a91dc98b] | 101 | BSP_START_TEXT_SECTION void bsp_start_hook_1(void) |
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| 102 | { |
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[9a037da9] | 103 | arm_a9mpcore_start_hook_1(); |
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[a91dc98b] | 104 | bsp_start_copy_sections(); |
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| 105 | setup_mmu_and_cache(); |
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| 106 | bsp_start_clear_bss(); |
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| 107 | } |
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