1 | /** |
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2 | * @file |
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3 | * @defgroup sparc_leon2 Sparc Leon2 Handler |
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4 | * @ingroup bsp_kit |
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5 | * @brief Handles Sparc Leon2 simulator |
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6 | */ |
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7 | |
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8 | /* bsp.h |
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9 | * |
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10 | * This include file contains all SPARC simulator definitions. |
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11 | * |
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12 | * COPYRIGHT (c) 1989-1998. |
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13 | * On-Line Applications Research Corporation (OAR). |
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14 | * |
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15 | * The license and distribution terms for this file may be |
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16 | * found in the file LICENSE in this distribution or at |
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17 | * http://www.rtems.com/license/LICENSE. |
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18 | * |
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19 | * Ported to ERC32 implementation of the SPARC by On-Line Applications |
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20 | * Research Corporation (OAR) under contract to the European Space |
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21 | * Agency (ESA). |
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22 | * |
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23 | * ERC32 modifications of respective RTEMS file: COPYRIGHT (c) 1995. |
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24 | * European Space Agency. |
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25 | */ |
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26 | |
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27 | #ifndef _BSP_H |
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28 | #define _BSP_H |
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29 | |
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30 | #ifdef __cplusplus |
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31 | extern "C" { |
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32 | #endif |
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33 | |
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34 | #include <bspopts.h> |
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35 | #include <bsp/default-initial-extension.h> |
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36 | |
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37 | #include <rtems.h> |
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38 | #include <leon.h> |
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39 | #include <rtems/clockdrv.h> |
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40 | #include <rtems/console.h> |
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41 | #include <rtems/irq-extension.h> |
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42 | |
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43 | /* SPARC CPU variant: LEON2 */ |
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44 | #define LEON2 1 |
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45 | |
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46 | /* |
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47 | * BSP provides its own Idle thread body |
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48 | */ |
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49 | void *bsp_idle_thread( uintptr_t ignored ); |
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50 | #define BSP_IDLE_TASK_BODY bsp_idle_thread |
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51 | |
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52 | /* |
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53 | * Network driver configuration |
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54 | */ |
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55 | struct rtems_bsdnet_ifconfig; |
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56 | extern int rtems_leon_open_eth_driver_attach( |
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57 | struct rtems_bsdnet_ifconfig *config |
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58 | ); |
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59 | extern int rtems_smc91111_driver_attach_leon2( |
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60 | struct rtems_bsdnet_ifconfig *config |
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61 | ); |
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62 | #define RTEMS_BSP_NETWORK_DRIVER_NAME "open_eth1" |
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63 | #define RTEMS_BSP_NETWORK_DRIVER_ATTACH_OPENETH \ |
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64 | rtems_leon_open_eth_driver_attach |
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65 | #define RTEMS_BSP_NETWORK_DRIVER_ATTACH_SMC91111 \ |
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66 | rtems_smc91111_driver_attach_leon2 |
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67 | |
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68 | #define HAS_SMC91111 |
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69 | |
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70 | /* Configure GRETH driver */ |
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71 | #define GRETH_SUPPORTED |
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72 | #define GRETH_MEM_LOAD(addr) leon_r32_no_cache(addr) |
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73 | |
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74 | /* |
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75 | * The synchronous trap is an arbitrarily chosen software trap. |
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76 | */ |
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77 | |
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78 | extern int CPU_SPARC_HAS_SNOOPING; |
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79 | |
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80 | /* Constants */ |
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81 | |
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82 | /* |
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83 | * Information placed in the linkcmds file. |
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84 | */ |
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85 | |
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86 | extern int RAM_START; |
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87 | extern int RAM_END; |
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88 | extern int RAM_SIZE; |
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89 | |
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90 | extern int PROM_START; |
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91 | extern int PROM_END; |
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92 | extern int PROM_SIZE; |
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93 | |
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94 | extern int CLOCK_SPEED; |
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95 | |
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96 | extern int end; /* last address in the program */ |
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97 | |
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98 | /* miscellaneous stuff assumed to exist */ |
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99 | |
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100 | rtems_isr_entry set_vector( /* returns old vector */ |
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101 | rtems_isr_entry handler, /* isr routine */ |
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102 | rtems_vector_number vector, /* vector number */ |
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103 | int type /* RTEMS or RAW intr */ |
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104 | ); |
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105 | |
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106 | void BSP_fatal_return( void ); |
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107 | |
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108 | void bsp_spurious_initialize( void ); |
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109 | |
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110 | /* Allocate 8-byte aligned non-freeable pre-malloc() memory. The function |
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111 | * can be called at any time. The work-area will shrink when called before |
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112 | * bsp_work_area_initialize(). malloc() is called to get memory when this function |
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113 | * is called after bsp_work_area_initialize(). |
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114 | */ |
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115 | void *bsp_early_malloc(int size); |
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116 | |
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117 | /* Interrupt Service Routine (ISR) pointer */ |
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118 | typedef void (*bsp_shared_isr)(void *arg); |
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119 | |
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120 | /* Initializes the Shared System Interrupt service */ |
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121 | extern void BSP_shared_interrupt_init(void); |
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122 | |
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123 | /* Registers a shared IRQ handler, and enable it at IRQ controller. Multiple |
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124 | * interrupt handlers may use the same IRQ number, all ISRs will be called |
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125 | * when an interrupt on that line is fired. |
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126 | * |
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127 | * Arguments |
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128 | * irq System IRQ number |
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129 | * info Optional Name of IRQ source |
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130 | * isr Function pointer to the ISR |
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131 | * arg Second argument to function isr |
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132 | */ |
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133 | static __inline__ int BSP_shared_interrupt_register |
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134 | ( |
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135 | int irq, |
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136 | const char *info, |
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137 | bsp_shared_isr isr, |
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138 | void *arg |
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139 | ) |
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140 | { |
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141 | return rtems_interrupt_handler_install(irq, info, |
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142 | RTEMS_INTERRUPT_SHARED, isr, arg); |
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143 | } |
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144 | |
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145 | /* Unregister previously registered shared IRQ handler. |
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146 | * |
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147 | * Arguments |
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148 | * irq System IRQ number |
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149 | * isr Function pointer to the ISR |
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150 | * arg Second argument to function isr |
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151 | */ |
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152 | static __inline__ int BSP_shared_interrupt_unregister |
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153 | ( |
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154 | int irq, |
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155 | bsp_shared_isr isr, |
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156 | void *arg |
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157 | ) |
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158 | { |
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159 | return rtems_interrupt_handler_remove(irq, isr, arg); |
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160 | } |
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161 | |
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162 | /* Clear interrupt pending on IRQ controller, this is typically done on a |
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163 | * level triggered interrupt source such as PCI to avoid taking double IRQs. |
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164 | * In such a case the interrupt source must be cleared first on LEON, before |
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165 | * acknowledging the IRQ with this function. |
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166 | * |
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167 | * Arguments |
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168 | * irq System IRQ number |
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169 | */ |
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170 | extern void BSP_shared_interrupt_clear(int irq); |
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171 | |
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172 | /* Enable Interrupt. This function will unmask the IRQ at the interrupt |
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173 | * controller. This is normally done by _register(). Note that this will |
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174 | * affect all ISRs on this IRQ. |
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175 | * |
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176 | * Arguments |
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177 | * irq System IRQ number |
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178 | */ |
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179 | extern void BSP_shared_interrupt_unmask(int irq); |
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180 | |
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181 | /* Disable Interrupt. This function will mask one IRQ at the interrupt |
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182 | * controller. This is normally done by _unregister(). Note that this will |
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183 | * affect all ISRs on this IRQ. |
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184 | * |
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185 | * Arguments |
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186 | * irq System IRQ number |
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187 | */ |
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188 | extern void BSP_shared_interrupt_mask(int irq); |
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189 | |
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190 | #ifdef __cplusplus |
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191 | } |
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192 | #endif |
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193 | |
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194 | #endif |
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