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annotate packages/hal/arm/edb7xxx/current/include/hal_platform_setup.h @ 54:f10165814f1e ecos-sw-1999-11-19

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Merge from eCos master repository on 1999-11-19-22:24:39-GMT
author jlarmour
date Fri, 19 Nov 1999 23:37:56 +0000
parents
children 755351606154
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54
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1 #ifndef CYGONCE_HAL_PLATFORM_SETUP_H
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2 #define CYGONCE_HAL_PLATFORM_SETUP_H
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3
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4 /*=============================================================================
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5 //
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6 // hal_platform_setup.h
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7 //
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8 // Platform specific support for HAL (assembly code)
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9 //
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10 //=============================================================================
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11 //####COPYRIGHTBEGIN####
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12 //
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13 // -------------------------------------------
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14 // The contents of this file are subject to the Cygnus eCos Public License
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15 // Version 1.0 (the "License"); you may not use this file except in
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16 // compliance with the License. You may obtain a copy of the License at
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17 // http://sourceware.cygnus.com/ecos
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18 //
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19 // Software distributed under the License is distributed on an "AS IS"
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20 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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21 // License for the specific language governing rights and limitations under
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22 // the License.
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23 //
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24 // The Original Code is eCos - Embedded Cygnus Operating System, released
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25 // September 30, 1998.
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26 //
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27 // The Initial Developer of the Original Code is Cygnus. Portions created
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28 // by Cygnus are Copyright (C) 1998,1999 Cygnus Solutions. All Rights Reserved.
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29 // -------------------------------------------
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30 //
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31 //####COPYRIGHTEND####
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32 //=============================================================================
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33 //#####DESCRIPTIONBEGIN####
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34 //
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35 // Author(s): gthomas
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36 // Contributors: gthomas
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37 // Date: 1999-04-21
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38 // Purpose: Cirrus EDB7XXX platform specific support routines
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39 // Description:
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40 // Usage: #include <cyg/hal/hal_platform_setup.h>
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41 //
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42 //####DESCRIPTIONEND####
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43 //
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44 //===========================================================================*/
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45
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46 #include <pkgconf/system.h> // System-wide configuration info
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47 #include CYGBLD_HAL_PLATFORM_H // Platform specific configuration
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48 #include <cyg/hal/hal_edb7xxx.h> // Platform specific hardware definitions
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49 #include <cyg/hal/hal_mmu.h> // MMU definitions
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50
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51 #define CYGHWR_HAL_ARM_HAS_MMU // This processor has an MMU
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52
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53 //
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54 // Memory map - set up by ROM (GDB stubs)
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55 //
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56 // Region Logical Address Physical Address
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57 // DRAM 0x00000000..0x00xFFFFF 0xC00x0000 (see below)
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58 // Expansion 2 0x20000000 0x20000000
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59 // Expansion 3 0x30000000 0x30000000
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60 // PCMCIA 0 0x40000000 0x40000000
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61 // PCMCIA 1 0x50000000 0x50000000
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62 // SRAM 0x60000000..0x600007FF 0x60000000
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63 // I/O 0x80000000 0x80000000
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64 // MMU Tables 0xC00y0000
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65 // LCD buffer 0xC0000000..0xC001FFFF 0xC0000000
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66 // ROM 0xE0000000..0xEFFFFFFF 0x00000000
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67 // ROM 0xF0000000..0xFFFFFFFF 0x10000000
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68
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69 #ifdef CYGHWR_HAL_ARM_EDB7XXX_LCD_INSTALLED
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70 #define LCD_BUFFER_SIZE 0x00020000
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71 #else
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72 #define LCD_BUFFER_SIZE 0x00000000
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73 #endif
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74 #define DRAM_PA_START 0xC0000000
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75 #define MMU_BASE DRAM_PA_START+LCD_BUFFER_SIZE
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76 #define PTE_BASE DRAM_PA_START+0x4000+LCD_BUFFER_SIZE
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77 #if (CYGHWR_HAL_ARM_EDB7XXX_DRAM_SIZE == 2)
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78 #define MMU_TABLES_SIZE (0x4000+0x1000+0x1000) // RAM used for PTE entries
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79 #define DRAM_LA_END (0x00200000-MMU_TABLES_SIZE-LCD_BUFFER_SIZE)
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80 #elif (CYGHWR_HAL_ARM_EDB7XXX_DRAM_SIZE == 16)
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81 #define MMU_TABLES_SIZE (0x4000+0x4000+0x1000) // RAM used for PTE entries
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82 #define DRAM_LA_END (0x01000000-MMU_TABLES_SIZE-LCD_BUFFER_SIZE)
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83 #endif
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84 #define DRAM_LA_START 0x00000000
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85 #define DRAM_PA MMU_BASE+MMU_TABLES_SIZE
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86 #define LCD_LA_START 0xC0000000
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87 #define LCD_LA_END 0xC0020000
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88 #define LCD_PA 0xC0000000
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89 #define ROM0_LA_START 0xE0000000
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90 #define ROM0_PA 0x00000000
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91 #define ROM0_LA_END 0xF0000000
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92 #define ROM1_LA_START 0xF0000000
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93 #define ROM1_LA_END 0x00000000
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94 #define ROM1_PA 0x10000000
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95 #define EXPANSION2_LA_START 0x20000000
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96 #define EXPANSION2_PA 0x20000000
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97 #define EXPANSION3_LA_START 0x30000000
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98 #define EXPANSION3_PA 0x30000000
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99 #define PCMCIA0_LA_START 0x40000000
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100 #define PCMCIA0_PA 0x40000000
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101 #define PCMCIA1_LA_START 0x50000000
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102 #define PCMCIA1_PA 0x50000000
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103 #define SRAM_LA_START 0x60000000
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104 #define SRAM_LA_END 0x60001000
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105 #define SRAM_PA 0x60000000
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106 #define IO_LA_START 0x80000000
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107 #define IO_LA_END 0x80003000
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108 #define IO_PA 0x80000000
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109
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110 // Define startup code [macros]
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111 #if defined(CYG_HAL_STARTUP_ROM) || defined(CYG_HAL_STARTUP_STUBS)
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112
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113 #if (CYGHWR_HAL_ARM_EDB7XXX_DRAM_SIZE == 2)
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114 // Note: The DRAM on this board is very irregular in that every
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115 // other 256K piece is missing. E.g. only these [physical]
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116 // addresses are valid:
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117 // 0xC0000000..0xC003FFFF
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118 // 0xC0080000..0xC00BFFFF
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119 // 0xC0200000..0xC023FFFF Note the additional GAP!
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120 // etc.
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121 // 0xC0800000..0xC083FFFF Note the additional GAP!
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122 // 0xC0880000..0xC08CFFFF
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123 // 0xC0A00000..0xC0A3FFFF
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124 // etc.
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125 // The MMU mapping code takes this into consideration and creates
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126 // a continuous logical map for the DRAM.
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127 #define MAP_DRAM \
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128 /* Map DRAM */ ;\
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129 ldr r3,=DRAM_LA_START ;\
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130 ldr r4,=DRAM_LA_END ;\
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131 ldr r5,=DRAM_PA ;\
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132 /* 0x00000000..0x000FFFFF */ ;\
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133 mov r6,r2 /* Set up page table descriptor */ ;\
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134 ldr r7,=MMU_L1_TYPE_Page ;\
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135 orr r6,r6,r7 ;\
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136 str r6,[r1],#4 /* Store PTE, update pointer */ ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
137 10: mov r6,r5 /* Build page table entry */ ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
138 ldr r7,=MMU_L2_TYPE_Small|MMU_AP_Any|MMU_Bufferable|MMU_Cacheable ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
139 orr r6,r6,r7 ;\
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jlarmour
parents:
diff changeset
140 ldr r7,=MMU_PAGE_SIZE ;\
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jlarmour
parents:
diff changeset
141 str r6,[r2],#4 /* Next page */ ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
142 add r3,r3,r7 ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
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parents:
diff changeset
143 add r5,r5,r7 ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
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diff changeset
144 ldr r8,=DRAM_LA_START+MMU_SECTION_SIZE ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
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diff changeset
145 cmp r3,r8 /* Done with first 1M? */ ;\
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diff changeset
146 beq 20f ;\
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diff changeset
147 ldr r7,=0x40000 /* Special check for 256K boundary */ ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
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parents:
diff changeset
148 and r7,r7,r5 ;\
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jlarmour
parents:
diff changeset
149 cmp r7,#0 ;\
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parents:
diff changeset
150 beq 10b ;\
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parents:
diff changeset
151 add r5,r5,r7 /* Skip 256K hole */ ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
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diff changeset
152 ldr r7,=0x100000 ;\
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diff changeset
153 and r7,r5,r7 ;\
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jlarmour
parents:
diff changeset
154 beq 10b ;\
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jlarmour
parents:
diff changeset
155 add r5,r5,r7 /* Nothing at 0xC0100000 */ ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
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diff changeset
156 ldr r7,=0x400000 /* Also nothing at 0xC0400000 */ ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
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diff changeset
157 and r7,r5,r7 ;\
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jlarmour
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diff changeset
158 beq 10b ;\
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parents:
diff changeset
159 add r5,r5,r7 ;\
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diff changeset
160 b 10b ;\
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diff changeset
161 20: ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
162 /* 0x00100000..0x001FFFFF */ ;\
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diff changeset
163 mov r6,r2 /* Set up page table descriptor */ ;\
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diff changeset
164 ldr r7,=MMU_L1_TYPE_Page ;\
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diff changeset
165 orr r6,r6,r7 ;\
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diff changeset
166 str r6,[r1],#4 /* Store PTE, update pointer */ ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
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diff changeset
167 10: mov r6,r5 /* Build page table entry */ ;\
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diff changeset
168 ldr r7,=MMU_L2_TYPE_Small|MMU_AP_Any|MMU_Bufferable|MMU_Cacheable ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
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diff changeset
169 orr r6,r6,r7 ;\
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diff changeset
170 ldr r7,=MMU_PAGE_SIZE ;\
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diff changeset
171 str r6,[r2],#4 /* Next page */ ;\
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parents:
diff changeset
172 add r3,r3,r7 ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
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diff changeset
173 cmp r3,r4 /* Done with first DRAM? */ ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
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parents:
diff changeset
174 beq 20f ;\
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diff changeset
175 add r5,r5,r7 ;\
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diff changeset
176 ldr r7,=0x40000 /* Special check for 256K boundary */ ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
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diff changeset
177 and r7,r7,r5 ;\
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diff changeset
178 cmp r7,#0 ;\
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diff changeset
179 beq 10b ;\
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diff changeset
180 add r5,r5,r7 /* Skip 256K hole */ ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
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diff changeset
181 ldr r7,=0x100000 ;\
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diff changeset
182 and r7,r5,r7 ;\
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diff changeset
183 beq 10b ;\
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diff changeset
184 add r5,r5,r7 /* Nothing at 0xC0300000 */ ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
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diff changeset
185 ldr r7,=0x400000 /* Also nothing at 0xC0400000 */ ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
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diff changeset
186 and r7,r5,r7 ;\
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diff changeset
187 beq 10b ;\
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diff changeset
188 add r5,r5,r7 ;\
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diff changeset
189 b 10b ;\
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diff changeset
190 20: ;
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diff changeset
191 #elif (CYGHWR_HAL_ARM_EDB7XXX_DRAM_SIZE == 16)
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
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diff changeset
192 // The 16M board is arranged as:
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diff changeset
193 // 0xC0000000..0xC07FFFFF
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diff changeset
194 // 0xC1000000..0xC17FFFFF
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diff changeset
195 #define MAP_DRAM \
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diff changeset
196 /* Map DRAM */ ;\
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diff changeset
197 ldr r3,=DRAM_LA_START ;\
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diff changeset
198 ldr r4,=DRAM_LA_END ;\
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diff changeset
199 ldr r5,=DRAM_PA ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
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diff changeset
200 /* 0xXXX00000..0xXXXFFFFF */ ;\
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diff changeset
201 10: mov r6,r2 /* Set up page table descriptor */ ;\
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diff changeset
202 ldr r7,=MMU_L1_TYPE_Page ;\
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diff changeset
203 orr r6,r6,r7 ;\
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diff changeset
204 str r6,[r1],#4 /* Store PTE, update pointer */ ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
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diff changeset
205 ldr r8,=MMU_SECTION_SIZE/MMU_PAGE_SIZE ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
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diff changeset
206 ldr r9,=DRAM_PA_START+0x00800000 /* Need to skip at 8M boundary */ ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
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diff changeset
207 12: cmp r5,r9 ;\
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diff changeset
208 bne 15f ;\
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diff changeset
209 ldr r5,=DRAM_PA_START+0x01000000 /* Next chunk of DRAM */ ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
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diff changeset
210 15: mov r6,r5 /* Build page table entry */ ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
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diff changeset
211 ldr r7,=MMU_L2_TYPE_Small|MMU_AP_Any|MMU_Bufferable|MMU_Cacheable ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
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diff changeset
212 orr r6,r6,r7 ;\
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jlarmour
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diff changeset
213 ldr r7,=MMU_PAGE_SIZE ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
214 str r6,[r2],#4 /* Next page */ ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
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parents:
diff changeset
215 add r3,r3,r7 ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
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parents:
diff changeset
216 add r5,r5,r7 ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
217 cmp r3,r4 /* End of DRAM? */ ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
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diff changeset
218 beq 20f ;\
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diff changeset
219 sub r8,r8,#1 /* End of 1M section? */ ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
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diff changeset
220 cmp r8,#0 ;\
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jlarmour
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diff changeset
221 bne 12b /* Next page */ ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
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diff changeset
222 b 10b /* Next section */ ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
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diff changeset
223 20:
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
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diff changeset
224 #else
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
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diff changeset
225 #err Invalid DRAM size selected
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
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diff changeset
226 #endif
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
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diff changeset
227
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
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diff changeset
228 #ifdef CYG_HAL_ARM_CL7111 // CL7111, 710 processor
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
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diff changeset
229 #define MMU_INITIALIZE \
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diff changeset
230 ldr r1,=MMU_Control_Init ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
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diff changeset
231 mcr MMU_CP,0,r1,MMU_Control,c0 /* MMU off */ ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
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diff changeset
232 ldr r1,=MMU_BASE ;\
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jlarmour
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diff changeset
233 mcr MMU_CP,0,r1,MMU_Base,c0 ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
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diff changeset
234 mcr MMU_CP,0,r1,MMU_FlushTLB,c0,0 /* Invalidate TLB */ ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
235 mcr MMU_CP,0,r1,MMU_FlushIDC,c0,0 /* Invalidate Caches */ ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
236 ldr r1,=0xFFFFFFFF ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
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diff changeset
237 mcr MMU_CP,0,r1,MMU_DomainAccess,c0 ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
238 ldr r2,=10f ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
239 ldr r1,=MMU_Control_Init|MMU_Control_M ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
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diff changeset
240 mcr MMU_CP,0,r1,MMU_Control,c0 ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
241 mov pc,r2 /* Change address spaces */ ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
242 nop ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
243 nop ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
244 nop ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
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diff changeset
245 10:
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
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diff changeset
246 #else // EP7211, 720T processor
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
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diff changeset
247 #define MMU_INITIALIZE ;\
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diff changeset
248 ldr r1,=MMU_Control_Init ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
249 mcr MMU_CP,0,r1,MMU_Control,c0 /* MMU off */ ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
250 ldr r1,=MMU_BASE ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
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diff changeset
251 mcr MMU_CP,0,r1,MMU_Base,c0 ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
252 mcr MMU_CP,0,r1,MMU_TLB,c7,0 /* Invalidate TLB - 720 style */ ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
253 mcr MMU_CP,0,r1,MMU_FlushIDC,c0,0 /* Invalidate Caches */ ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
254 ldr r1,=0xFFFFFFFF ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
255 mcr MMU_CP,0,r1,MMU_DomainAccess,c0 ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
256 ldr r2,=10f ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
257 ldr r3,=__exception_handlers ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
258 sub r2,r2,r3 ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
259 ldr r3,=ROM0_LA_START ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
260 add r2,r2,r3 ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
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diff changeset
261 ldr r1,=MMU_Control_Init|MMU_Control_M ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
262 mcr MMU_CP,0,r1,MMU_Control,c0 ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
263 mov pc,r2 /* Change address spaces */ ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
264 nop ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
265 nop ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
266 nop ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
267 10:
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
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diff changeset
268 #endif
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
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diff changeset
269
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
270 #define PLATFORM_SETUP1 \
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jlarmour
parents:
diff changeset
271 /* Initialize memory configuration */ ;\
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jlarmour
parents:
diff changeset
272 ldr r1,=MEMCFG1 ;\
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jlarmour
parents:
diff changeset
273 ldr r2,=0x8200A080 /* FIXME - what is this? */ ;\
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jlarmour
parents:
diff changeset
274 str r2,[r1] ;\
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jlarmour
parents:
diff changeset
275 ldr r1,=MEMCFG2 ;\
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jlarmour
parents:
diff changeset
276 ldr r2,=0xFEFC0000 ;\
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jlarmour
parents:
diff changeset
277 str r2,[r1] ;\
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jlarmour
parents:
diff changeset
278 ldr r1,=DRFPR ;\
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jlarmour
parents:
diff changeset
279 ldr r2,=0x81 /* DRAM refresh = 64KHz */ ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
280 strb r2,[r1] ;\
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jlarmour
parents:
diff changeset
281 /* Initialize MMU to create new memory map */ ;\
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jlarmour
parents:
diff changeset
282 ldr r1,=MMU_BASE ;\
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jlarmour
parents:
diff changeset
283 ldr r2,=PTE_BASE ;\
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jlarmour
parents:
diff changeset
284 MAP_DRAM ;\
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jlarmour
parents:
diff changeset
285 /* Nothing until PCMCIA0 */ ;\
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jlarmour
parents:
diff changeset
286 ldr r3,=0x3FF /* Page tables need 2K boundary */ ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
287 add r2,r2,r3 ;\
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jlarmour
parents:
diff changeset
288 ldr r3,=~0x3FF ;\
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jlarmour
parents:
diff changeset
289 and r2,r2,r3 ;\
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jlarmour
parents:
diff changeset
290 ldr r3,=(DRAM_LA_END+0x000FFFFF)&0xFFF00000 ;\
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jlarmour
parents:
diff changeset
291 ldr r4,=EXPANSION2_LA_START ;\
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jlarmour
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diff changeset
292 ldr r5,=MMU_L1_TYPE_Fault ;\
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jlarmour
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diff changeset
293 ldr r7,=MMU_SECTION_SIZE ;\
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jlarmour
parents:
diff changeset
294 10: str r5,[r1],#4 ;\
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jlarmour
parents:
diff changeset
295 add r3,r3,r7 ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
296 cmp r3,r4 ;\
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jlarmour
parents:
diff changeset
297 bne 10b ;\
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jlarmour
parents:
diff changeset
298 /* EXPANSION2, EXPANSION3, PCMCIA0, PCMCIA1 */ ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
299 ldr r3,=EXPANSION2_LA_START ;\
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jlarmour
parents:
diff changeset
300 ldr r4,=SRAM_LA_START ;\
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jlarmour
parents:
diff changeset
301 ldr r5,=EXPANSION2_PA ;\
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jlarmour
parents:
diff changeset
302 ldr r6,=MMU_L1_TYPE_Section|MMU_AP_Any ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
303 ldr r7,=MMU_SECTION_SIZE ;\
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jlarmour
parents:
diff changeset
304 10: orr r0,r5,r6 ;\
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jlarmour
parents:
diff changeset
305 str r0,[r1],#4 ;\
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jlarmour
parents:
diff changeset
306 add r5,r5,r7 ;\
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jlarmour
parents:
diff changeset
307 add r3,r3,r7 ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
308 cmp r3,r4 ;\
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jlarmour
parents:
diff changeset
309 bne 10b ;\
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jlarmour
parents:
diff changeset
310 /* SRAM */ ;\
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jlarmour
parents:
diff changeset
311 ldr r3,=SRAM_LA_START ;\
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jlarmour
parents:
diff changeset
312 ldr r4,=MMU_L1_TYPE_Page|MMU_DOMAIN(0) ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
313 orr r4,r4,r2 ;\
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jlarmour
parents:
diff changeset
314 str r4,[r1],#4 ;\
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jlarmour
parents:
diff changeset
315 ldr r4,=MMU_L2_TYPE_Small|MMU_AP_Any|MMU_Bufferable|MMU_Cacheable ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
316 orr r4,r3,r4 ;\
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jlarmour
parents:
diff changeset
317 str r4,[r2],#4 ;\
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jlarmour
parents:
diff changeset
318 ldr r3,=SRAM_LA_START+MMU_PAGE_SIZE ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
319 ldr r4,=SRAM_LA_START+MMU_SECTION_SIZE ;\
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jlarmour
parents:
diff changeset
320 ldr r5,=MMU_L2_TYPE_Fault ;\
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jlarmour
parents:
diff changeset
321 ldr r7,=MMU_PAGE_SIZE ;\
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jlarmour
parents:
diff changeset
322 10: str r5,[r2],#4 ;\
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jlarmour
parents:
diff changeset
323 add r3,r3,r7 ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
324 cmp r3,r4 ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
325 bne 10b ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
326 ldr r4,=IO_LA_START ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
327 ldr r5,=MMU_L1_TYPE_Fault ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
328 ldr r7,=MMU_SECTION_SIZE ;\
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jlarmour
parents:
diff changeset
329 20: str r5,[r1],#4 ;\
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jlarmour
parents:
diff changeset
330 add r3,r3,r7 ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
331 cmp r3,r4 ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
332 bne 20b ;\
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jlarmour
parents:
diff changeset
333 /* I/O */ ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
334 ldr r3,=0x3FF /* Page tables need 2K boundary */ ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
335 add r2,r2,r3 ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
336 ldr r3,=~0x3FF ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
337 and r2,r2,r3 ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
338 ldr r4,=MMU_L1_TYPE_Page|MMU_DOMAIN(0) ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
339 orr r4,r4,r2 ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
340 str r4,[r1],#4 ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
341 ldr r3,=IO_LA_START ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
342 ldr r4,=IO_LA_END ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
343 ldr r7,=MMU_PAGE_SIZE ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
344 ldr r5,=IO_PA|MMU_L2_TYPE_Small|MMU_AP_All ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
345 10: str r5,[r2],#4 ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
346 add r5,r5,r7 ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
347 add r3,r3,r7 ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
348 cmp r3,r4 ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
349 bne 10b ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
350 ldr r4,=IO_LA_START+MMU_SECTION_SIZE ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
351 ldr r5,=MMU_L2_TYPE_Fault ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
352 ldr r7,=MMU_PAGE_SIZE ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
353 10: str r5,[r2],#4 ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
354 add r3,r3,r7 ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
355 cmp r3,r4 ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
356 bne 10b ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
357 ldr r4,=LCD_LA_START ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
358 ldr r5,=MMU_L1_TYPE_Fault ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
359 ldr r7,=MMU_SECTION_SIZE ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
360 20: str r5,[r1],#4 ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
361 add r3,r3,r7 ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
362 cmp r3,r4 ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
363 bne 20b ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
364 /* LCD Buffer & Unmapped DRAM (holes and all) */ ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
365 ldr r3,=LCD_LA_START ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
366 ldr r4,=ROM0_LA_START ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
367 ldr r5,=LCD_PA ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
368 ldr r6,=MMU_L1_TYPE_Section|MMU_AP_Any|MMU_Bufferable|MMU_Cacheable ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
369 ldr r7,=MMU_SECTION_SIZE ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
370 10: orr r0,r5,r6 ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
371 str r0,[r1],#4 ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
372 add r5,r5,r7 ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
373 add r3,r3,r7 ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
374 cmp r3,r4 ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
375 bne 10b ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
376 /* ROM0 */ ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
377 ldr r3,=ROM0_LA_START ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
378 ldr r4,=ROM0_LA_END ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
379 ldr r5,=ROM0_PA ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
380 ldr r6,=MMU_L1_TYPE_Section|MMU_AP_Any|MMU_Cacheable ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
381 ldr r7,=MMU_SECTION_SIZE ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
382 10: orr r0,r5,r6 ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
383 str r0,[r1],#4 ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
384 add r5,r5,r7 ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
385 add r3,r3,r7 ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
386 cmp r3,r4 ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
387 bne 10b ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
388 /* ROM1 */ ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
389 ldr r3,=ROM1_LA_START ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
390 ldr r4,=ROM1_LA_END ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
391 ldr r5,=ROM1_PA ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
392 ldr r6,=MMU_L1_TYPE_Section|MMU_AP_Any ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
393 ldr r7,=MMU_SECTION_SIZE ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
394 10: orr r0,r5,r6 ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
395 str r0,[r1],#4 ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
396 add r5,r5,r7 ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
397 add r3,r3,r7 ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
398 cmp r3,r4 ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
399 bne 10b ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
400 /* Now initialize the MMU to use this new page table */ ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
401 MMU_INITIALIZE ;\
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT
jlarmour
parents:
diff changeset
402 ldr r2,=__exception_handlers ;\
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jlarmour
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403 ldr r3,=ROM0_LA_START ;\
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404 cmp r2,r3 ;\
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405 beq 20f ;\
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406 ldr r4,=__rom_data_end ;\
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407 15: ;\
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408 ldr r0,[r3],#4 ;\
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409 str r0,[r2],#4 ;\
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410 cmp r2,r4 ;\
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411 bne 15b ;\
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412 20:
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413
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414 #else
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415
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416 #define PLATFORM_SETUP1
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417 #endif
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418
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419
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420 /*---------------------------------------------------------------------------*/
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421 /* end of hal_platform_setup.h */
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422 #endif /* CYGONCE_HAL_PLATFORM_SETUP_H */