1 | /*===============================================================*\ |
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2 | | Project: RTEMS generic MPC5200 BSP | |
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3 | +-----------------------------------------------------------------+ |
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4 | | Partially based on the code references which are named below. | |
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5 | | Adaptions, modifications, enhancements and any recent parts of | |
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6 | | the code are: | |
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7 | | Copyright (c) 2005 | |
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8 | | Embedded Brains GmbH | |
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9 | | Obere Lagerstr. 30 | |
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10 | | D-82178 Puchheim | |
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11 | | Germany | |
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12 | | rtems@embedded-brains.de | |
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13 | +-----------------------------------------------------------------+ |
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14 | | The license and distribution terms for this file may be | |
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15 | | found in the file LICENSE in this distribution or at | |
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16 | | | |
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17 | | http://www.rtems.com/license/LICENSE. | |
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18 | | | |
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19 | +-----------------------------------------------------------------+ |
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20 | | this file contains board specific definitions | |
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21 | \*===============================================================*/ |
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22 | |
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23 | #ifndef __GEN5200_BSP_h |
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24 | #define __GEN5200_BSP_h |
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25 | |
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26 | #include <libcpu/powerpc-utility.h> |
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27 | |
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28 | /* |
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29 | * Some symbols defined in the linker command file. |
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30 | */ |
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31 | |
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32 | LINKER_SYMBOL(bsp_ram_start); |
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33 | LINKER_SYMBOL(bsp_ram_end); |
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34 | LINKER_SYMBOL(bsp_ram_size); |
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35 | |
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36 | LINKER_SYMBOL(bsp_rom_start); |
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37 | LINKER_SYMBOL(bsp_rom_end); |
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38 | LINKER_SYMBOL(bsp_rom_size); |
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39 | |
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40 | LINKER_SYMBOL(bsp_dpram_start); |
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41 | LINKER_SYMBOL(bsp_dpram_end); |
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42 | LINKER_SYMBOL(bsp_dpram_size); |
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43 | |
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44 | LINKER_SYMBOL(bsp_section_text_start); |
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45 | LINKER_SYMBOL(bsp_section_text_end); |
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46 | LINKER_SYMBOL(bsp_section_text_size); |
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47 | |
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48 | LINKER_SYMBOL(bsp_section_data_start); |
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49 | LINKER_SYMBOL(bsp_section_data_end); |
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50 | LINKER_SYMBOL(bsp_section_data_size); |
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51 | |
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52 | LINKER_SYMBOL(bsp_section_bss_start); |
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53 | LINKER_SYMBOL(bsp_section_bss_end); |
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54 | LINKER_SYMBOL(bsp_section_bss_size); |
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55 | |
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56 | LINKER_SYMBOL(bsp_interrupt_stack_start); |
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57 | LINKER_SYMBOL(bsp_interrupt_stack_end); |
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58 | LINKER_SYMBOL(bsp_interrupt_stack_size); |
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59 | |
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60 | LINKER_SYMBOL(bsp_work_area_start); |
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61 | |
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62 | LINKER_SYMBOL(MBAR); |
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63 | |
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64 | /* |
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65 | * distinguish board characteristics |
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66 | */ |
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67 | /* |
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68 | * for PM520 mdule on a ZE30 carrier |
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69 | */ |
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70 | #if defined(PM520_ZE30) |
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71 | #define PM520 |
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72 | #define GPIOPCR_INITMASK 0x337F3F77 |
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73 | #define GPIOPCR_INITVAL 0x01552114 |
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74 | /* we have PSC1/4/5/6 */ |
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75 | /* #define GEN5200_UART_AVAIL_MASK 0x39 */ |
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76 | #define GEN5200_UART_AVAIL_MASK 0x39 |
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77 | #endif |
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78 | /* |
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79 | * for PM520 mdule on a CR825 carrier |
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80 | */ |
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81 | #if defined(PM520_CR825) |
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82 | #define PM520 |
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83 | #define GPIOPCR_INITMASK 0x330F0F77 |
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84 | #define GPIOPCR_INITVAL 0x01050444 |
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85 | /* we have PSC1/2/3*/ |
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86 | #define GEN5200_UART_AVAIL_MASK 0x07 |
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87 | #endif |
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88 | |
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89 | #if defined(BRS5L) |
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90 | /* |
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91 | * IMD Custom Board BRS5L |
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92 | */ |
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93 | #define GPIOPCR_INITMASK 0xb30F0F77 |
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94 | #define GPIOPCR_INITVAL 0x91050444 |
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95 | /* we have PSC1/2/3 */ |
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96 | #define GEN5200_UART_AVAIL_MASK 0x07 |
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97 | |
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98 | /* we need the low level initialization in start.S*/ |
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99 | #define NEED_LOW_LEVEL_INIT |
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100 | |
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101 | #define HAS_NVRAM_93CXX |
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102 | #elif defined (PM520) |
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103 | |
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104 | #define HAS_UBOOT |
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105 | |
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106 | #elif defined (icecube) |
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107 | /* |
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108 | * Codename: IceCube |
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109 | * Compatible Boards: |
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110 | * Freescape MPC5200LITE |
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111 | * Embedded Planet EP5200 |
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112 | */ |
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113 | |
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114 | #define HAS_UBOOT |
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115 | |
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116 | /* These are copied from PM520 but seem to work so OK */ |
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117 | #define GPIOPCR_INITMASK 0x330F0F77 |
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118 | #define GPIOPCR_INITVAL 0x01050444 |
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119 | |
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120 | /* we only have PSC1 */ |
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121 | #define GEN5200_UART_AVAIL_MASK 0x01 |
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122 | |
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123 | /* We want to prompt for a reset and then reset the board */ |
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124 | #define BSP_PRESS_KEY_FOR_RESET 1 |
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125 | #define BSP_RESET_BOARD_AT_EXIT 1 |
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126 | |
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127 | #else |
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128 | #error "board type not defined" |
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129 | #endif |
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130 | |
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131 | #ifndef ASM |
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132 | |
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133 | #ifdef __cplusplus |
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134 | extern "C" { |
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135 | #endif |
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136 | |
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137 | #include "bspopts.h" |
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138 | |
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139 | #include <rtems.h> |
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140 | #include <rtems/console.h> |
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141 | #include <rtems/clockdrv.h> |
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142 | #include <i2cdrv.h> |
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143 | #include <bsp/irq.h> |
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144 | #include <bsp/vectors.h> |
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145 | |
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146 | #if defined(HAS_UBOOT) |
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147 | /* This is the define U-Boot uses to configure which entries in the structure are valid */ |
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148 | #define CONFIG_MPC5xxx |
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149 | #include <u-boot.h> |
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150 | |
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151 | extern bd_t *uboot_bdinfo_ptr; |
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152 | extern bd_t uboot_bdinfo_copy; |
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153 | #endif |
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154 | |
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155 | /* |
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156 | * Network driver configuration |
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157 | */ |
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158 | struct rtems_bsdnet_ifconfig; |
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159 | extern int rtems_mpc5200_fec_driver_attach_detach (struct rtems_bsdnet_ifconfig *config, int attaching); |
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160 | #define RTEMS_BSP_NETWORK_DRIVER_NAME "eth1" |
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161 | #define RTEMS_BSP_NETWORK_DRIVER_ATTACH rtems_mpc5200_fec_driver_attach_detach |
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162 | |
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163 | /* miscellaneous stuff assumed to exist */ |
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164 | |
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165 | /* |
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166 | * We need to decide how much memory will be non-cacheable. This |
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167 | * will mainly be memory that will be used in DMA (network and serial |
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168 | * buffers). |
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169 | */ |
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170 | /* |
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171 | #define NOCACHE_MEM_SIZE 512*1024 |
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172 | */ |
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173 | |
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174 | /* |
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175 | * Stuff for Time Test 27 |
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176 | */ |
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177 | #define MUST_WAIT_FOR_INTERRUPT 0 |
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178 | |
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179 | /* |
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180 | * Device Driver Table Entries |
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181 | */ |
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182 | |
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183 | /* |
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184 | * NOTE: Use the standard Console driver entry |
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185 | */ |
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186 | |
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187 | /* |
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188 | * NOTE: Use the standard Clock driver entry |
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189 | */ |
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190 | |
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191 | #ifdef HAS_NVRAM_93CXX |
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192 | #define NVRAM_DRIVER_TABLE_ENTRY \ |
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193 | { nvram_driver_initialize, nvram_driver_open, nvram_driver_close, \ |
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194 | nvram_driver_read, nvram_driver_write, NULL } |
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195 | #endif |
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196 | |
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197 | #define RTC_DRIVER_TABLE_ENTRY \ |
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198 | { rtc_initialize, NULL, NULL, NULL, NULL, NULL } |
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199 | extern rtems_device_driver rtc_initialize( |
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200 | rtems_device_major_number major, |
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201 | rtems_device_minor_number minor, |
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202 | void *arg |
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203 | ); |
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204 | |
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205 | /* |
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206 | * indicate, that BSP has IDE driver |
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207 | */ |
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208 | #define RTEMS_BSP_HAS_IDE_DRIVER |
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209 | |
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210 | /* |
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211 | * How many libio files we want |
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212 | */ |
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213 | #define BSP_LIBIO_MAX_FDS 20 |
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214 | |
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215 | /* functions */ |
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216 | |
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217 | void bsp_cleanup(void); |
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218 | |
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219 | /* console modes (only termios) */ |
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220 | #ifdef PRINTK_MINOR |
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221 | #undef PRINTK_MINOR |
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222 | #endif |
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223 | #define PRINTK_MINOR PSC1_MINOR |
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224 | |
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225 | #define SINGLE_CHAR_MODE |
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226 | /* #define UARTS_USE_TERMIOS_INT 1 */ |
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227 | /* #define SHOW_MORE_INIT_SETTINGS 1 */ |
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228 | |
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229 | /* ata modes */ |
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230 | /* #undef ATA_USE_INT */ |
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231 | #define ATA_USE_INT |
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232 | |
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233 | /* clock settings */ |
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234 | #if defined(HAS_UBOOT) |
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235 | #define IPB_CLOCK (uboot_bdinfo_ptr->bi_ipbfreq) |
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236 | #define XLB_CLOCK (uboot_bdinfo_ptr->bi_busfreq) |
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237 | #define G2_CLOCK (uboot_bdinfo_ptr->bi_intfreq) |
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238 | #else |
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239 | #define IPB_CLOCK 33000000 /* 33 MHz */ |
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240 | #define XLB_CLOCK 66000000 /* 66 MHz */ |
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241 | #define G2_CLOCK 231000000 /* 231 MHz */ |
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242 | #endif |
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243 | |
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244 | #if defined(HAS_UBOOT) |
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245 | #define GEN5200_CONSOLE_BAUD (uboot_bdinfo_ptr->bi_baudrate) |
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246 | #else |
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247 | #define GEN5200_CONSOLE_BAUD 9600 |
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248 | #endif |
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249 | |
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250 | /* |
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251 | * Convert decrement value to tenths of microsecnds (used by |
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252 | * shared timer driver). |
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253 | * |
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254 | * + CPU has a XLB_CLOCK bus, |
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255 | * + There are 4 bus cycles per click |
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256 | * + We return value in 1/10 microsecond units. |
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257 | * Modified following equation to integer equation to remove |
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258 | * floating point math. |
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259 | * (int) ((float)(_value) / ((XLB_CLOCK/1000000 * 0.1) / 4.0)) |
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260 | */ |
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261 | |
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262 | #define BSP_Convert_decrementer( _value ) \ |
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263 | (int) (((_value) * 4000) / (XLB_CLOCK/10000)) |
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264 | |
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265 | /* slicetimer settings */ |
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266 | #define USE_SLICETIMER_0 TRUE |
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267 | #define USE_SLICETIMER_1 FALSE |
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268 | |
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269 | Thread _Thread_Idle_body(uint32_t ignored); |
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270 | #define BSP_IDLE_TASK_BODY _Thread_Idle_body |
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271 | |
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272 | /* BSP specific IRQ Benchmarking support */ |
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273 | void BSP_IRQ_Benchmarking_Reset(void); |
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274 | void BSP_IRQ_Benchmarking_Report(void); |
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275 | |
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276 | #if defined(HAS_UBOOT) |
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277 | /* Routine to obtain U-Boot environment variables */ |
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278 | const char *bsp_uboot_getenv( |
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279 | const char *name |
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280 | ); |
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281 | #endif |
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282 | |
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283 | void cpu_init(void); |
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284 | |
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285 | #ifdef __cplusplus |
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286 | } |
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287 | #endif |
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288 | |
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289 | #endif /* ASM */ |
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290 | |
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291 | #endif /* GEN5200 */ |
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