1 | /* motorola.h |
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2 | * |
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3 | * This include file describe the data structure and the functions implemented |
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4 | * by rtems to identify motorola boards. |
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5 | * |
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6 | * Copyright (C) 1999 valette@crf.canon.fr |
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7 | * |
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8 | * The license and distribution terms for this file may be |
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9 | * found in the file LICENSE in this distribution or at |
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10 | * http://www.rtems.com/license/LICENSE. |
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11 | * |
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12 | * $Id$ |
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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/motorola.h> |
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17 | #include <rtems/bspIo.h> |
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18 | #include <libcpu/io.h> |
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19 | #include <string.h> |
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20 | #include <libcpu/cpuIdent.h> |
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21 | |
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22 | /* |
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23 | ** Board-specific table that maps interrupt names to onboard PCI |
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24 | ** peripherals as well as local PCI busses. This table is used at |
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25 | ** bspstart() to configure the interrupt name & pin for all devices that |
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26 | ** do not have it already specified. If the device is already |
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27 | ** configured, we leave it alone but sanity check & print a warning if |
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28 | ** we don't know about the pin/line the card gives us. |
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29 | ** |
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30 | ** bus = the bus number of the slot/device in question |
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31 | ** |
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32 | ** slot : |
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33 | ** |
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34 | ** If slot != -1, it indicates a device on the given bus in that slot |
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35 | ** is to use one of the listed interrupt names given an interrupt pin. |
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36 | ** |
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37 | ** If slot == -1, it means devices on this bus can occupy any slot- |
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38 | ** and for pci, this means the particular interrupt pin that the |
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39 | ** device signals is therefore dependent on the particular slot. To |
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40 | ** work from the slot to the interrupt pin, the swizzle table is used. |
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41 | ** Once the bus and interrupt pin is known, the correct interrupt name |
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42 | ** can be pulled from the table. The swizzle table relates the |
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43 | ** interrupt pin from the device to the particular interrupt |
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44 | ** controller interrupt pin- so it is quite reasonable for a device on |
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45 | ** bus 1 signalling interrupt pin 1 to show up at the interrupt |
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46 | ** controller as pin 4- this is why the int pin field varies for |
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47 | ** bridged pci busses. |
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48 | ** |
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49 | ** |
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50 | ** opts = bitmap of options that control the configuration of this |
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51 | ** slot/bus. |
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52 | ** |
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53 | ** pin_routes[] = array of pin & vectors that may serve this slot; |
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54 | ** |
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55 | ** pin = the pin # which delivers an interrupt on this route, A=1, |
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56 | ** B=2, C=3, D=4 |
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57 | ** |
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58 | ** int_name[4] = an array of up to 4 bsp-specific interrupt name |
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59 | ** that can be used by this route. Unused entries should be -1. |
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60 | ** The array is of primary use for slots that can be vectored thru |
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61 | ** multiple interrupt lines over the interrupt pin supplied by the |
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62 | ** record. If more than one entry is present, the most preferable |
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63 | ** should supplied first. |
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64 | ** |
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65 | */ |
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66 | |
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67 | #define NULL_PINMAP {-1,{-1,-1,-1,-1}} |
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68 | #define NULL_INTMAP {-1,-1,-1,{}} |
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69 | |
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70 | #ifdef qemu |
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71 | static struct _int_map qemu_prep_intmap[] = { |
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72 | { 0, -1, PCI_FIXUP_OPT_OVERRIDE_NAME, |
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73 | { { 1, { 9, -1, -1, -1}}, |
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74 | { 2, {11, -1 -1, -1}}, |
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75 | NULL_PINMAP }}, |
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76 | NULL_INTMAP |
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77 | }; |
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78 | #endif |
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79 | |
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80 | static struct _int_map mcp750_intmap[] = { |
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81 | |
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82 | { 0, 16, 0, {{1, {5, 19,-1,-1}}, /* pmc slot */ |
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83 | NULL_PINMAP}}, |
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84 | |
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85 | { 0, 14, 0, {{1, {10,18,-1,-1}}, /* onboard ethernet */ |
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86 | NULL_PINMAP}}, |
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87 | |
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88 | { 1, -1, 0, {{1, {24,-1,-1,-1}}, |
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89 | {2, {25,-1,-1,-1}}, |
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90 | {3, {26,-1,-1,-1}}, |
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91 | {4, {27,-1,-1,-1}}, |
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92 | NULL_PINMAP}}, |
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93 | |
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94 | NULL_INTMAP }; |
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95 | |
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96 | static struct _int_map mtx603_intmap[] = { |
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97 | |
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98 | {0, 14, 0, {{1, {10,16,-1,-1}}, /* onboard ethernet */ |
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99 | NULL_PINMAP}}, |
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100 | |
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101 | {0, 12, 0, {{1, {14,18,-1,-1}}, /* onboard scsi */ |
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102 | NULL_PINMAP}}, |
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103 | |
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104 | {0, 16, 0, {{1, {25,-1,-1,-1}}, /* pci/pmc slot 1 */ |
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105 | {2, {26,-1,-1,-1}}, |
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106 | {3, {27,-1,-1,-1}}, |
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107 | {4, {28,-1,-1,-1}}, |
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108 | NULL_PINMAP}}, |
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109 | |
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110 | {0, 17, 0, {{1, {26,-1,-1,-1}}, /* pci/pmc slot 2 */ |
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111 | {2, {27,-1,-1,-1}}, |
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112 | {3, {28,-1,-1,-1}}, |
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113 | {4, {25,-1,-1,-1}}, |
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114 | NULL_PINMAP}}, |
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115 | |
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116 | {0, 18, 0, {{1, {27,-1,-1,-1}}, /* pci slot 3 */ |
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117 | {2, {28,-1,-1,-1}}, |
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118 | {3, {25,-1,-1,-1}}, |
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119 | {4, {26,-1,-1,-1}}, |
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120 | NULL_PINMAP}}, |
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121 | |
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122 | NULL_INTMAP }; |
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123 | |
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124 | static struct _int_map mvme23xx_intmap[] = { |
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125 | /* Raven Hostbridge; has int_pin == 0 |
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126 | {0, 0, 0, {{0, {-1,-1,-1,-1}}, |
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127 | NULL_PINMAP}}, |
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128 | */ |
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129 | |
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130 | /* Winbond PCI/ISA 83c553; has int_pin == 0 |
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131 | {0, 11, 0, {{0, {-1,-1,-1,-1}}, |
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132 | NULL_PINMAP}}, |
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133 | */ |
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134 | |
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135 | #if 0 /* Leave as ISA interrupts for now */ |
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136 | {0, 13, PCI_FIXUP_OPT_OVERRIDE_NAME, |
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137 | {{1, {11,21,-1,-1,-1}}, /* Universe ISA/PCI */ |
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138 | /* strictly speaking, a non-multi function device |
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139 | * must only use pin A |
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140 | */ |
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141 | {2, {22,-1,-1,-1,-1}}, /* Universe */ |
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142 | {3, {23,-1,-1,-1,-1}}, /* Universe */ |
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143 | {4, {24,-1,-1,-1,-1}}, /* Universe */ |
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144 | NULL_PINMAP}}, |
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145 | |
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146 | {0, 14, PCI_FIXUP_OPT_OVERRIDE_NAME, |
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147 | {{1, {10,18,-1,-1}}, /* DEC Tulip enet (ISA/PCI) */ |
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148 | NULL_PINMAP}}, |
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149 | #endif |
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150 | |
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151 | {0, 16, PCI_FIXUP_OPT_OVERRIDE_NAME, |
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152 | {{1, {25,-1,-1,-1}}, /* pci/pmc slot 1 */ |
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153 | {2, {26,-1,-1,-1}}, |
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154 | {3, {27,-1,-1,-1}}, |
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155 | {4, {28,-1,-1,-1}}, |
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156 | NULL_PINMAP}}, |
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157 | |
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158 | {0, 17, PCI_FIXUP_OPT_OVERRIDE_NAME, |
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159 | {{1, {28,-1,-1,-1}}, /* pci/pmc slot 2 */ /* orig: 0xf */ |
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160 | {2, {25,-1,-1,-1}}, |
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161 | {3, {26,-1,-1,-1}}, |
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162 | {4, {27,-1,-1,-1}}, |
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163 | NULL_PINMAP}}, |
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164 | |
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165 | NULL_INTMAP }; |
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166 | |
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167 | static struct _int_map mvme24xx_intmap[] = { |
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168 | /* Raven Hostbridge; has int_pin == 0 |
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169 | {0, 0, 0, {{0, {-1,-1,-1,-1}}, |
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170 | NULL_PINMAP}}, |
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171 | */ |
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172 | |
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173 | /* Winbond PCI/ISA 83c553; has int_pin == 0 |
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174 | {0, 11, 0, {{0, {-1,-1,-1,-1}}, |
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175 | NULL_PINMAP}}, |
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176 | */ |
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177 | |
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178 | {0, 13, PCI_FIXUP_OPT_OVERRIDE_NAME, |
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179 | {{1, {11,21,-1,-1}}, /* Universe ISA/PCI */ |
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180 | /* strictly speaking, a non-multi function device |
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181 | * must only use pin A |
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182 | */ |
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183 | {2, {22,-1,-1,-1}}, /* Universe */ |
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184 | {3, {23,-1,-1,-1}}, /* Universe */ |
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185 | {4, {24,-1,-1,-1}}, /* Universe */ |
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186 | NULL_PINMAP}}, |
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187 | |
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188 | {0, 14, PCI_FIXUP_OPT_OVERRIDE_NAME, |
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189 | {{1, {10,18,-1,-1}}, /* DEC Tulip enet (ISA/PCI) */ |
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190 | NULL_PINMAP}}, |
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191 | {0, 16, PCI_FIXUP_OPT_OVERRIDE_NAME, |
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192 | {{1, {25,-1,-1,-1}}, /* pci/pmc slot 1 */ |
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193 | {2, {26,-1,-1,-1}}, |
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194 | {3, {27,-1,-1,-1}}, |
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195 | {4, {28,-1,-1,-1}}, |
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196 | NULL_PINMAP}}, |
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197 | |
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198 | {0, 17, PCI_FIXUP_OPT_OVERRIDE_NAME, |
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199 | {{1, {28,-1,-1,-1}}, /* pci/pmc slot 2 */ /* orig: 0xf */ |
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200 | {2, {25,-1,-1,-1}}, |
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201 | {3, {26,-1,-1,-1}}, |
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202 | {4, {27,-1,-1,-1}}, |
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203 | NULL_PINMAP}}, |
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204 | NULL_INTMAP }; |
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205 | |
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206 | static struct _int_map mvme27xx_intmap[] = { |
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207 | /* Raven Hostbridge; has int_pin == 0 */ |
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208 | {0, 0, 0, {{0, {-1,-1,-1,-1}}, |
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209 | NULL_PINMAP}}, |
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210 | |
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211 | |
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212 | /* Winbond PCI/ISA 83c553; has int_pin == 0 */ |
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213 | {0, 11, 0, {{0, {-1,-1,-1,-1}}, |
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214 | NULL_PINMAP}}, |
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215 | |
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216 | {0, 13, PCI_FIXUP_OPT_OVERRIDE_NAME, |
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217 | {{1, {11,21,-1,-1}}, /* Universe ISA/PCI */ |
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218 | /* strictly speaking, a non-multi function device |
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219 | * must only use pin A |
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220 | */ |
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221 | {2, {22,-1,-1,-1}}, /* Universe */ |
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222 | {3, {23,-1,-1,-1}}, /* Universe */ |
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223 | {4, {24,-1,-1,-1}}, /* Universe */ |
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224 | NULL_PINMAP}}, |
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225 | |
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226 | {0, 14, PCI_FIXUP_OPT_OVERRIDE_NAME, |
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227 | {{1, {10,18,-1,-1}}, /* DEC Tulip enet (ISA/PCI) */ |
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228 | NULL_PINMAP}}, |
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229 | {0, 16, PCI_FIXUP_OPT_OVERRIDE_NAME, |
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230 | {{1, {25,-1,-1,-1}}, /* pci/pmc slot 1 */ |
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231 | {2, {26,-1,-1,-1}}, |
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232 | {3, {27,-1,-1,-1}}, |
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233 | {4, {28,-1,-1,-1}}, |
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234 | NULL_PINMAP}}, |
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235 | |
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236 | {0, 17, PCI_FIXUP_OPT_OVERRIDE_NAME, |
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237 | {{1, {28,-1,-1,-1}}, /* pci/pmc slot 2 */ /* orig: 0xf */ |
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238 | {2, {25,-1,-1,-1}}, |
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239 | {3, {26,-1,-1,-1}}, |
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240 | {4, {27,-1,-1,-1}}, |
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241 | NULL_PINMAP}}, |
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242 | NULL_INTMAP }; |
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243 | |
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244 | static struct _int_map mvme2100_intmap[] = { |
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245 | {0, 0, 0, {{1, {16,-1,-1,-1}}, /* something shows up in slot 0 and OpenPIC */ |
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246 | /* 0 is unused. This hushes the init code. */ |
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247 | NULL_PINMAP}}, |
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248 | |
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249 | {0, 13, 0, {{1, {23,-1,-1,-1}}, /* Universe Lint[0-3]; not quite legal */ |
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250 | {2, {24,-1,-1,-1}}, /* since the universe is a single-function */ |
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251 | {3, {25,-1,-1,-1}}, /* device. We leave it for info purposes */ |
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252 | {4, {26,-1,-1,-1}}, |
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253 | NULL_PINMAP}}, |
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254 | |
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255 | {0, 14, 0, {{1, {17,-1,-1,-1}}, /* onboard ethernet */ |
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256 | NULL_PINMAP}}, |
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257 | |
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258 | {0, 16, PCI_FIXUP_OPT_OVERRIDE_NAME, |
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259 | {{1, {18,-1,-1,-1}}, /* PMC slot; all pins are routed to 18 */ |
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260 | {2, {18,-1,-1,-1}}, /* I give the OVERRIDE option since I had */ |
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261 | {3, {18,-1,-1,-1}}, /* problems with devices behind a bridge */ |
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262 | {4, {18,-1,-1,-1}}, /* on a PMC card reading irq line 0... */ |
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263 | NULL_PINMAP}}, |
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264 | |
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265 | /* FIXME: I don't know how MIP works or what it is; these probably won't work */ |
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266 | |
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267 | {0, -1, PCI_FIXUP_OPT_OVERRIDE_NAME, |
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268 | {{1, {23,-1,-1,-1}}, /* PCI INT[A-D] expansion */ |
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269 | {2, {24,-1,-1,-1}}, |
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270 | {3, {25,-1,-1,-1}}, |
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271 | {4, {26,-1,-1,-1}}, |
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272 | NULL_PINMAP}}, |
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273 | |
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274 | NULL_INTMAP }; |
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275 | |
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276 | /* |
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277 | * This table represents the standard PCI swizzle defined in the |
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278 | * PCI bus specification. Table taken from Linux 2.4.18, prep_pci.c, |
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279 | * the values in this table are interrupt_pin values (1 based). |
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280 | */ |
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281 | static unsigned char prep_pci_intpins[4][4] = |
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282 | { |
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283 | { 1, 2, 3, 4 }, /* Buses 0, 4, 8, ... */ |
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284 | { 2, 3, 4, 1 }, /* Buses 1, 5, 9, ... */ |
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285 | { 3, 4, 1, 2 }, /* Buses 2, 6, 10 ... */ |
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286 | { 4, 1, 2, 3 }, /* Buses 3, 7, 11 ... */ |
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287 | }; |
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288 | |
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289 | static int prep_pci_swizzle(int slot, int pin) |
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290 | { |
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291 | return prep_pci_intpins[ slot % 4 ][ pin-1 ]; |
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292 | } |
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293 | |
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294 | typedef struct { |
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295 | /* |
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296 | * 0x100 mask assumes for Raven and Hawk boards |
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297 | * that the level/edge are set. |
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298 | * 0x200 if this board has a Hawk chip. |
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299 | */ |
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300 | int cpu_type; |
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301 | int base_type; |
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302 | ppc_cpu_id_t proc_type; |
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303 | const char *name; |
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304 | |
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305 | struct _int_map *intmap; |
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306 | int (*swizzler)(int, int); |
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307 | } mot_info_t; |
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308 | |
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309 | /* NOTE: When adding boards here the 'motorolaBoard' enums MUST be |
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310 | * updated accordingly! |
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311 | */ |
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312 | static const mot_info_t mot_boards[] = { |
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313 | {0x0E0, 0xF9, PPC_604, "MVME 2400", mvme24xx_intmap,prep_pci_swizzle}, |
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314 | {0x3E0, 0x00, PPC_750, "MVME 2400 (PPC 750)", mvme24xx_intmap,prep_pci_swizzle}, |
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315 | {0x010, 0x00, PPC_UNKNOWN, "Genesis", NULL, NULL}, |
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316 | {0x020, 0x00, PPC_UNKNOWN, "Powerstack (Series E)", NULL, NULL}, |
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317 | {0x040, 0x00, PPC_UNKNOWN, "Blackhawk (Powerstack)", NULL, NULL}, |
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318 | {0x050, 0x00, PPC_UNKNOWN, "Omaha (PowerStack II Pro3000)", NULL, NULL}, |
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319 | {0x060, 0x00, PPC_UNKNOWN, "Utah (Powerstack II Pro4000)", NULL, NULL}, |
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320 | {0x0A0, 0x00, PPC_UNKNOWN, "Powerstack (Series EX)", NULL, NULL}, |
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321 | #ifdef qemu |
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322 | {0x1E0, 0xE0, PPC_UNKNOWN, "QEMU", qemu_prep_intmap, prep_pci_swizzle}, |
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323 | #else |
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324 | {0x1E0, 0xE0, PPC_UNKNOWN, "Mesquite cPCI (MCP750)", mcp750_intmap, prep_pci_swizzle}, |
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325 | #endif |
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326 | {0x1E0, 0xE1, PPC_UNKNOWN, "Sitka cPCI (MCPN750)", mcp750_intmap, prep_pci_swizzle}, |
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327 | {0x1E0, 0xE2, PPC_UNKNOWN, "Mesquite cPCI (MCP750) w/ HAC", mcp750_intmap, prep_pci_swizzle}, |
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328 | {0x1E0, 0xF6, PPC_UNKNOWN, "MTX Plus", NULL, NULL}, |
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329 | {0x1E0, 0xF7, PPC_UNKNOWN, "MTX w/o Parallel Port", mtx603_intmap, prep_pci_swizzle}, |
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330 | {0x1E0, 0xF8, PPC_UNKNOWN, "MTX w/ Parallel Port", mtx603_intmap, prep_pci_swizzle}, |
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331 | {0x1E0, 0xF9, PPC_604, "MVME 2300", mvme23xx_intmap, prep_pci_swizzle}, |
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332 | {0x1E0, 0xFA, PPC_UNKNOWN, "MVME 2300SC/2600", mvme23xx_intmap, prep_pci_swizzle}, |
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333 | {0x1E0, 0xFB, PPC_UNKNOWN, "MVME 2600 with MVME712M", NULL, NULL}, |
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334 | {0x1E0, 0xFC, PPC_750, "MVME 2600/2700 with MVME761", mvme27xx_intmap, prep_pci_swizzle}, |
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335 | {0x1E0, 0xFD, PPC_UNKNOWN, "MVME 3600 with MVME712M", NULL, NULL}, |
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336 | {0x1E0, 0xFE, PPC_UNKNOWN, "MVME 3600 with MVME761", NULL, NULL}, |
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337 | {0x1E0, 0xFF, PPC_UNKNOWN, "MVME 1600-001 or 1600-011", NULL, NULL}, |
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338 | {0x000, 0x00, PPC_UNKNOWN, ""}, /* end of probeable values for automatic scan */ |
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339 | {0x000, 0x00, PPC_UNKNOWN, "MVME 2100", mvme2100_intmap, prep_pci_swizzle}, |
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340 | }; |
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341 | |
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342 | prep_t currentPrepType; |
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343 | motorolaBoard currentBoard; |
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344 | |
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345 | prep_t checkPrepBoardType(RESIDUAL *res) |
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346 | { |
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347 | prep_t PREP_type; |
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348 | /* figure out what kind of prep workstation we are */ |
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349 | if ( res->ResidualLength != 0 ) { |
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350 | if ( !strncmp((char*)res->VitalProductData.PrintableModel,"IBM",3) ) |
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351 | PREP_type = PREP_IBM; |
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352 | else if (!strncmp((char*)res->VitalProductData.PrintableModel, |
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353 | "Radstone",8)){ |
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354 | PREP_type = PREP_Radstone; |
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355 | } |
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356 | else |
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357 | PREP_type = PREP_Motorola; |
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358 | } |
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359 | else /* assume motorola if no residual (netboot?) */ { |
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360 | PREP_type = PREP_Motorola; |
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361 | } |
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362 | currentPrepType = PREP_type; |
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363 | return PREP_type; |
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364 | } |
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365 | |
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366 | motorolaBoard getMotorolaBoard(void) |
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367 | { |
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368 | /* |
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369 | * At least the MVME2100 does not have the CPU Type and Base Type Registers, |
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370 | * so it cannot be probed. |
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371 | * |
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372 | * NOTE: Every path must set currentBoard. |
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373 | */ |
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374 | #if defined(mvme2100) |
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375 | currentBoard = (motorolaBoard) MVME_2100; |
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376 | #else |
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377 | unsigned char cpu_type; |
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378 | unsigned char base_mod; |
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379 | ppc_cpu_id_t proc_type; |
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380 | int entry; |
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381 | int mot_entry = -1; |
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382 | |
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383 | cpu_type = inb(MOTOROLA_CPUTYPE_REG) & 0xF0; |
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384 | base_mod = inb(MOTOROLA_BASETYPE_REG); |
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385 | proc_type = get_ppc_cpu_type (); |
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386 | |
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387 | for (entry = 0; mot_boards[entry].cpu_type != 0; entry++) { |
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388 | if ((mot_boards[entry].cpu_type & 0xff) != cpu_type) |
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389 | continue; |
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390 | |
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391 | if ((mot_boards[entry].proc_type != PPC_UNKNOWN) && |
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392 | (mot_boards[entry].proc_type != proc_type)) |
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393 | /* |
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394 | * IMD: processor type does not match |
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395 | * (here we distinguish a MVME2300 and a MVME2400) |
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396 | */ |
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397 | continue; |
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398 | |
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399 | if (mot_boards[entry].base_type != base_mod) |
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400 | continue; |
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401 | else { |
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402 | mot_entry = entry; |
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403 | break; |
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404 | } |
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405 | } |
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406 | if (mot_entry == -1) { |
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407 | printk("Unknown motorola board Please update libbsp/powerpc/shared/motorola/motorola.c\n"); |
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408 | printk("cpu_type = %x\n", (unsigned) cpu_type); |
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409 | printk("base_mod = %x\n", (unsigned) base_mod); |
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410 | currentBoard = MOTOROLA_UNKNOWN; |
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411 | return currentBoard; |
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412 | } |
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413 | currentBoard = (motorolaBoard) mot_entry; |
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414 | #endif |
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415 | return currentBoard; |
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416 | } |
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417 | |
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418 | const char* motorolaBoardToString(motorolaBoard board) |
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419 | { |
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420 | if (board == MOTOROLA_UNKNOWN) return "Unknown motorola board"; |
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421 | return (mot_boards[board].name); |
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422 | } |
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423 | |
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424 | const struct _int_map *motorolaIntMap(motorolaBoard board) |
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425 | { |
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426 | if (board == MOTOROLA_UNKNOWN) return NULL; |
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427 | /* printk( "IntMap board %d 0x%08x\n", board, mot_boards[board].intmap ); */ |
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428 | return mot_boards[board].intmap; |
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429 | } |
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430 | |
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431 | const void *motorolaIntSwizzle(motorolaBoard board) |
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432 | { |
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433 | if (board == MOTOROLA_UNKNOWN) return NULL; |
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434 | return (void *)mot_boards[board].swizzler; |
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435 | } |
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