OpenWrt – Blame information for rev 1
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Rev | Author | Line No. | Line |
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1 | office | 1 | ################################################################################ |
2 | ## Raspberry Pi Configuration Settings |
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3 | ## |
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4 | ## Revision 14, 2012/10/22 |
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5 | ## |
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6 | ## Details taken from the eLinux wiki |
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7 | ## For up-to-date information please refer to wiki page. |
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8 | ## |
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9 | ## Wiki Location : http://elinux.org/RPi_config.txt |
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10 | ## |
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11 | ## |
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12 | ## Description: |
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13 | ## Details of each setting are described with each section that begins with |
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14 | ## a double hashed comment ('##') |
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15 | ## It is up to the user to remove the single hashed comment ('#') from each |
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16 | ## option they want to enable, and to set the specific value of that option. |
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17 | ## |
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18 | ## WARNING: Setting the following combination of parameters will set a |
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19 | ## permanent bit within the SOC and your warranty is void. |
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20 | ## over_voltage>0, and at least one of the following: |
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21 | ## force_turbo=1 |
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22 | ## current_limit_override=0x5A000020 |
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23 | ## temp_limit>85 |
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24 | ## |
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25 | ## Overclock settings will be disabled at runtime if the SoC reaches temp_limit |
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26 | ## |
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27 | ################################################################################ |
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28 | |||
29 | ################################################################################ |
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30 | ## Standard Definition Video Settings |
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31 | ################################################################################ |
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32 | |||
33 | ## sdtv_mode |
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34 | ## defines the TV standard for composite output |
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35 | ## |
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36 | ## Value Description |
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37 | ## ------------------------------------------------------------------------- |
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38 | ## 0 Normal NTSC (Default) |
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39 | ## 1 Japanese version of NTSC - no pedestal |
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40 | ## 2 Normal PAL |
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41 | ## 3 Brazilian version of PAL - 525/60 rather than 625/50, different |
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42 | ## subcarrier |
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43 | ## |
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44 | #sdtv_mode=0 |
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45 | |||
46 | ## sdtv_aspect |
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47 | ## defines the aspect ratio for composite output |
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48 | ## |
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49 | ## Value Description |
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50 | ## ------------------------------------------------------------------------- |
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51 | ## 1 4:3 (Default) |
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52 | ## 2 14:9 |
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53 | ## 3 16:9 |
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54 | ## |
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55 | #sdtv_aspect=1 |
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56 | |||
57 | ## sdtv_disable_colourburst |
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58 | ## Disables colour burst on composite output. The picture will be |
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59 | ## monochrome, but possibly sharper |
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60 | ## |
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61 | ## Value Description |
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62 | ## ------------------------------------------------------------------------- |
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63 | ## 0 Colour burst is enabled (Default) |
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64 | ## 1 Colour burst is disabled |
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65 | ## |
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66 | #sdtv_disable_colourburst=1 |
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67 | |||
68 | ################################################################################ |
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69 | ## High Definition Video Settings |
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70 | ################################################################################ |
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71 | |||
72 | ## hdmi_safe |
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73 | ## Use "safe mode" settings to try to boot with maximum hdmi compatibility. |
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74 | ## |
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75 | ## Value Description |
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76 | ## ------------------------------------------------------------------------- |
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77 | ## 0 Disabled (Default) |
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78 | ## 1 Enabled (this does: hdmi_force_hotplug=1, config_hdmi_boost=4, |
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79 | ## hdmi_group=1, hdmi_mode=1, |
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80 | ## disable_overscan=0) |
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81 | ## |
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82 | #hdmi_safe=1 |
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83 | |||
84 | ## hdmi_force_hotplug |
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85 | ## Pretends HDMI hotplug signal is asserted so it appears a HDMI display |
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86 | ## is attached |
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87 | ## |
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88 | ## Value Description |
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89 | ## ------------------------------------------------------------------------- |
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90 | ## 0 Disabled (Default) |
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91 | ## 1 Use HDMI mode even if no HDMI monitor is detected |
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92 | ## |
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93 | #hdmi_force_hotplug=1 |
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94 | |||
95 | ## hdmi_ignore_hotplug |
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96 | ## Pretends HDMI hotplug signal is not asserted so it appears a HDMI |
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97 | ## display is not attached |
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98 | ## |
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99 | ## Value Description |
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100 | ## ------------------------------------------------------------------------- |
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101 | ## 0 Disabled (Default) |
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102 | ## 1 Use composite mode even if HDMI monitor is detected |
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103 | ## |
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104 | #hdmi_ignore_hotplug=1 |
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105 | |||
106 | ## hdmi_drive |
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107 | ## chooses between HDMI and DVI modes |
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108 | ## |
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109 | ## Value Description |
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110 | ## ------------------------------------------------------------------------- |
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111 | ## 1 Normal DVI mode (No sound) |
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112 | ## 2 Normal HDMI mode (Sound will be sent if supported and enabled) |
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113 | ## |
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114 | #hdmi_drive=2 |
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115 | |||
116 | ## hdmi_ignore_edid |
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117 | ## Enables the ignoring of EDID/display data |
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118 | ## |
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119 | #hdmi_ignore_edid=0xa5000080 |
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120 | |||
121 | ## hdmi_edid_file |
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122 | ## Read the EDID data from the edid.dat file instead of from the attached |
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123 | ## device |
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124 | ## |
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125 | ## Value Description |
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126 | ## ------------------------------------------------------------------------- |
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127 | ## 0 Read EDID data from attached device (Default) |
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128 | ## 1 Read EDID data from edid.txt file |
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129 | ## |
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130 | #hdmi_edid_file=1 |
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131 | |||
132 | ## hdmi_force_edid_audio |
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133 | ## Pretends all audio formats are supported by display, allowing |
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134 | ## passthrough of DTS/AC3 even when not reported as supported. |
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135 | ## |
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136 | ## Value Description |
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137 | ## ------------------------------------------------------------------------- |
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138 | ## 0 Use EDID provided values (Default) |
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139 | ## 1 Pretend all audio formats are supported |
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140 | ## |
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141 | #hdmi_force_edid_audio=1 |
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142 | |||
143 | ## avoid_edid_fuzzy_match |
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144 | ## Avoid fuzzy matching of modes described in edid. |
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145 | ## |
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146 | ## Value Description |
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147 | ## ------------------------------------------------------------------------- |
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148 | ## 0 Use fuzzy matching (Default) |
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149 | ## 1 Avoid fuzzy matching |
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150 | ## |
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151 | #avoid_edid_fuzzy_match=1 |
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152 | |||
153 | ## hdmi_group |
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154 | ## Defines the HDMI type |
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155 | ## |
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156 | ## Value Description |
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157 | ## ------------------------------------------------------------------------- |
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158 | ## 0 Use the preferred group reported by the edid (Default) |
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159 | ## 1 CEA |
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160 | ## 2 DMT |
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161 | ## |
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162 | #hdmi_group=1 |
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163 | |||
164 | ## hdmi_mode |
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165 | ## defines screen resolution in CEA or DMT format |
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166 | ## |
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167 | ## H means 16:9 variant (of a normally 4:3 mode). |
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168 | ## 2x means pixel doubled (i.e. higher clock rate, with each pixel repeated |
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169 | ## twice) |
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170 | ## 4x means pixel quadrupled (i.e. higher clock rate, with each pixel |
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171 | ## repeated four times) |
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172 | ## reduced blanking means fewer bytes are used for blanking within the data |
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173 | ## stream (i.e. lower clock rate, with fewer wasted bytes) |
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174 | ## |
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175 | ## Value hdmi_group=CEA hdmi_group=DMT |
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176 | ## ------------------------------------------------------------------------- |
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177 | ## 1 VGA 640x350 85Hz |
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178 | ## 2 480p 60Hz 640x400 85Hz |
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179 | ## 3 480p 60Hz H 720x400 85Hz |
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180 | ## 4 720p 60Hz 640x480 60Hz |
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181 | ## 5 1080i 60Hz 640x480 72Hz |
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182 | ## 6 480i 60Hz 640x480 75Hz |
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183 | ## 7 480i 60Hz H 640x480 85Hz |
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184 | ## 8 240p 60Hz 800x600 56Hz |
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185 | ## 9 240p 60Hz H 800x600 60Hz |
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186 | ## 10 480i 60Hz 4x 800x600 72Hz |
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187 | ## 11 480i 60Hz 4x H 800x600 75Hz |
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188 | ## 12 240p 60Hz 4x 800x600 85Hz |
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189 | ## 13 240p 60Hz 4x H 800x600 120Hz |
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190 | ## 14 480p 60Hz 2x 848x480 60Hz |
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191 | ## 15 480p 60Hz 2x H 1024x768 43Hz DO NOT USE |
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192 | ## 16 1080p 60Hz 1024x768 60Hz |
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193 | ## 17 576p 50Hz 1024x768 70Hz |
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194 | ## 18 576p 50Hz H 1024x768 75Hz |
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195 | ## 19 720p 50Hz 1024x768 85Hz |
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196 | ## 20 1080i 50Hz 1024x768 120Hz |
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197 | ## 21 576i 50Hz 1152x864 75Hz |
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198 | ## 22 576i 50Hz H 1280x768 reduced blanking |
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199 | ## 23 288p 50Hz 1280x768 60Hz |
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200 | ## 24 288p 50Hz H 1280x768 75Hz |
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201 | ## 25 576i 50Hz 4x 1280x768 85Hz |
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202 | ## 26 576i 50Hz 4x H 1280x768 120Hz reduced blanking |
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203 | ## 27 288p 50Hz 4x 1280x800 reduced blanking |
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204 | ## 28 288p 50Hz 4x H 1280x800 60Hz |
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205 | ## 29 576p 50Hz 2x 1280x800 75Hz |
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206 | ## 30 576p 50Hz 2x H 1280x800 85Hz |
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207 | ## 31 1080p 50Hz 1280x800 120Hz reduced blanking |
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208 | ## 32 1080p 24Hz 1280x960 60Hz |
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209 | ## 33 1080p 25Hz 1280x960 85Hz |
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210 | ## 34 1080p 30Hz 1280x960 120Hz reduced blanking |
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211 | ## 35 480p 60Hz 4x 1280x1024 60Hz |
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212 | ## 36 480p 60Hz 4x H 1280x1024 75Hz |
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213 | ## 37 576p 50Hz 4x 1280x1024 85Hz |
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214 | ## 38 576p 50Hz 4x H 1280x1024 120Hz reduced blanking |
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215 | ## 39 1080i 50Hz reduced blanking 1360x768 60Hz |
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216 | ## 40 1080i 100Hz 1360x768 120Hz reduced blanking |
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217 | ## 41 720p 100Hz 1400x1050 reduced blanking |
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218 | ## 42 576p 100Hz 1400x1050 60Hz |
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219 | ## 43 576p 100Hz H 1400x1050 75Hz |
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220 | ## 44 576i 100Hz 1400x1050 85Hz |
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221 | ## 45 576i 100Hz H 1400x1050 120Hz reduced blanking |
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222 | ## 46 1080i 120Hz 1440x900 reduced blanking |
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223 | ## 47 720p 120Hz 1440x900 60Hz |
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224 | ## 48 480p 120Hz 1440x900 75Hz |
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225 | ## 49 480p 120Hz H 1440x900 85Hz |
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226 | ## 50 480i 120Hz 1440x900 120Hz reduced blanking |
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227 | ## 51 480i 120Hz H 1600x1200 60Hz |
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228 | ## 52 576p 200Hz 1600x1200 65Hz |
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229 | ## 53 576p 200Hz H 1600x1200 70Hz |
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230 | ## 54 576i 200Hz 1600x1200 75Hz |
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231 | ## 55 576i 200Hz H 1600x1200 85Hz |
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232 | ## 56 480p 240Hz 1600x1200 120Hz reduced blanking |
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233 | ## 57 480p 240Hz H 1680x1050 reduced blanking |
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234 | ## 58 480i 240Hz 1680x1050 60Hz |
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235 | ## 59 480i 240Hz H 1680x1050 75Hz |
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236 | ## 60 1680x1050 85Hz |
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237 | ## 61 1680x1050 120Hz reduced blanking |
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238 | ## 62 1792x1344 60Hz |
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239 | ## 63 1792x1344 75Hz |
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240 | ## 64 1792x1344 120Hz reduced blanking |
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241 | ## 65 1856x1392 60Hz |
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242 | ## 66 1856x1392 75Hz |
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243 | ## 67 1856x1392 120Hz reduced blanking |
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244 | ## 68 1920x1200 reduced blanking |
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245 | ## 69 1920x1200 60Hz |
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246 | ## 70 1920x1200 75Hz |
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247 | ## 71 1920x1200 85Hz |
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248 | ## 72 1920x1200 120Hz reduced blanking |
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249 | ## 73 1920x1440 60Hz |
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250 | ## 74 1920x1440 75Hz |
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251 | ## 75 1920x1440 120Hz reduced blanking |
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252 | ## 76 2560x1600 reduced blanking |
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253 | ## 77 2560x1600 60Hz |
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254 | ## 78 2560x1600 75Hz |
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255 | ## 79 2560x1600 85Hz |
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256 | ## 80 2560x1600 120Hz reduced blanking |
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257 | ## 81 1366x768 60Hz |
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258 | ## 82 1080p 60Hz |
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259 | ## 83 1600x900 reduced blanking |
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260 | ## 84 2048x1152 reduced blanking |
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261 | ## 85 720p 60Hz |
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262 | ## 86 1366x768 reduced blanking |
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263 | ## |
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264 | #hdmi_mode=1 |
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265 | |||
266 | ## config_hdmi_boost |
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267 | ## configure the signal strength of the HDMI interface. |
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268 | ## |
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269 | ## Value Description |
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270 | ## ------------------------------------------------------------------------- |
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271 | ## 0 (Default) |
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272 | ## 1 |
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273 | ## 2 |
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274 | ## 3 |
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275 | ## 4 Try if you have interference issues with HDMI |
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276 | ## 5 |
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277 | ## 6 |
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278 | ## 7 Maximum |
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279 | ## |
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280 | #config_hdmi_boost=0 |
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281 | |||
282 | ## hdmi_ignore_cec_init |
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283 | ## Doesn't sent initial active source message. Avoids bringing |
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284 | ## (CEC enabled) TV out of standby and channel switch when rebooting. |
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285 | ## |
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286 | ## Value Description |
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287 | ## ------------------------------------------------------------------------- |
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288 | ## 0 Normal behaviour (Default) |
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289 | ## 1 Doesn't sent initial active source message |
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290 | ## |
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291 | #hdmi_ignore_cec_init=1 |
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292 | |||
293 | ## hdmi_ignore_cec |
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294 | ## Pretends CEC is not supported at all by TV. |
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295 | ## No CEC functions will be supported. |
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296 | ## |
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297 | ## Value Description |
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298 | ## ------------------------------------------------------------------------- |
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299 | ## 0 Normal behaviour (Default) |
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300 | ## 1 Pretend CEC is not supported by TV |
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301 | ## |
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302 | #hdmi_ignore_cec=1 |
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303 | |||
304 | ################################################################################ |
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305 | ## Overscan Video Settings |
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306 | ################################################################################ |
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307 | |||
308 | ## overscan_left |
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309 | ## Number of pixels to skip on left |
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310 | ## |
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311 | #overscan_left=0 |
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312 | |||
313 | ## overscan_right |
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314 | ## Number of pixels to skip on right |
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315 | ## |
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316 | #overscan_right=0 |
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317 | |||
318 | ## overscan_top |
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319 | ## Number of pixels to skip on top |
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320 | ## |
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321 | #overscan_top=0 |
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322 | |||
323 | ## overscan_bottom |
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324 | ## Number of pixels to skip on bottom |
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325 | ## |
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326 | #overscan_bottom=0 |
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327 | |||
328 | ## disable_overscan |
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329 | ## Set to 1 to disable overscan |
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330 | ## |
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331 | ## Value Description |
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332 | ## ------------------------------------------------------------------------- |
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333 | ## 0 Overscan Enabled (Default) |
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334 | ## 1 Overscan Disabled |
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335 | ## |
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336 | #disable_overscan=1 |
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337 | |||
338 | ################################################################################ |
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339 | ## Framebuffer Video Settings |
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340 | ################################################################################ |
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341 | |||
342 | ## framebuffer_width |
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343 | ## Console framebuffer width in pixels. Default is display width minus |
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344 | ## overscan. |
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345 | ## |
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346 | #framebuffer_width=0 |
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347 | |||
348 | ## framebuffer_height |
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349 | ## Console framebuffer height in pixels. Default is display height minus |
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350 | ## overscan. |
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351 | ## |
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352 | #framebuffer_height=0 |
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353 | |||
354 | ## framebuffer_depth |
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355 | ## Console framebuffer depth in bits per pixel. |
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356 | ## |
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357 | ## Value Description |
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358 | ## ------------------------------------------------------------------------- |
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359 | ## 8 Valid, but default RGB palette makes an unreadable screen |
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360 | ## 16 (Default) |
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361 | ## 24 Looks better but has corruption issues as of 2012/06/15 |
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362 | ## 32 Has no corruption issues but needs framebuffer_ignore_alpha=1 |
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363 | ## and shows the wrong colors as of 2012/06/15 |
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364 | ## |
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365 | #framebuffer_depth=16 |
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366 | |||
367 | ## framebuffer_ignore_alpha |
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368 | ## Set to 1 to disable alpha channel. Helps with 32bit. |
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369 | ## |
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370 | ## Value Description |
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371 | ## ------------------------------------------------------------------------- |
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372 | ## 0 Enable Alpha Channel (Default) |
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373 | ## 1 Disable Alpha Channel |
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374 | ## |
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375 | #framebuffer_ignore_alpha=0 |
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376 | |||
377 | ################################################################################ |
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378 | ## General Video Settings |
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379 | ################################################################################ |
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380 | |||
381 | ## display_rotate |
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382 | ## Rotate the display clockwise or flip the display. |
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383 | ## The 90 and 270 degrees rotation options require additional memory on GPU, |
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384 | ## so won't work with the 16M GPU split. |
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385 | ## |
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386 | ## Value Description |
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387 | ## ------------------------------------------------------------------------- |
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388 | ## 0 0 degrees (Default) |
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389 | ## 1 90 degrees |
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390 | ## 2 180 degrees |
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391 | ## 3 270 degrees |
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392 | ## 0x10000 Horizontal flip |
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393 | ## 0x20000 Vertical flip |
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394 | ## |
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395 | #display_rotate=0 |
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396 | |||
397 | ################################################################################ |
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398 | ## Licensed Codecs |
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399 | ## |
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400 | ## Hardware decoding of additional codecs can be enabled by purchasing a |
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401 | ## license that is locked to the CPU serial number of your Raspberry Pi. |
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402 | ## |
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403 | ## Up to 8 licenses per CODEC can be specified as a comma seperated list. |
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404 | ## |
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405 | ################################################################################ |
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406 | |||
407 | ## decode_MPG2 |
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408 | ## License key to allow hardware MPEG-2 decoding. |
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409 | ## |
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410 | #decode_MPG2=0x12345678 |
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411 | |||
412 | ## decode_WVC1 |
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413 | ## License key to allow hardware VC-1 decoding. |
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414 | ## |
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415 | #decode_WVC1=0x12345678 |
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416 | |||
417 | ################################################################################ |
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418 | ## Test Settings |
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419 | ################################################################################ |
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420 | |||
421 | ## test_mode |
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422 | ## Enable test sound/image during boot for manufacturing test. |
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423 | ## |
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424 | ## Value Description |
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425 | ## ------------------------------------------------------------------------- |
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426 | ## 0 Disable Test Mod (Default) |
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427 | ## 1 Enable Test Mode |
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428 | ## |
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429 | #test_mode=0 |
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430 | |||
431 | ################################################################################ |
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432 | ## Memory Settings |
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433 | ################################################################################ |
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434 | |||
435 | ## disable_l2cache |
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436 | ## Disable arm access to GPU's L2 cache. Needs corresponding L2 disabled |
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437 | ## kernel. |
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438 | ## |
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439 | ## Value Description |
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440 | ## ------------------------------------------------------------------------- |
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441 | ## 0 Enable L2 Cache (Default) |
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442 | ## 1 Disable L2 cache |
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443 | ## |
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444 | #disable_l2cache=0 |
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445 | |||
446 | ## gpu_mem |
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447 | ## GPU memory allocation in MB for all board revisions. |
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448 | ## |
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449 | ## Default 64 |
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450 | ## |
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451 | #gpu_mem=128 |
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452 | |||
453 | ## gpu_mem_256 |
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454 | ## GPU memory allocation in MB for 256MB board revision. |
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455 | ## This option overrides gpu_mem. |
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456 | ## |
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457 | #gpu_mem_256=128 |
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458 | |||
459 | ## gpu_mem_512 |
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460 | ## GPU memory allocation in MB for 512MB board revision. |
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461 | ## This option overrides gpu_mem. |
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462 | ## |
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463 | #gpu_mem_512=128 |
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464 | |||
465 | ## gpu_mem_1024 |
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466 | ## GPU memory allocation in MB for 1024MB board revision. |
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467 | ## This option overrides gpu_mem. |
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468 | ## |
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469 | #gpu_mem_1024=128 |
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470 | |||
471 | ################################################################################ |
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472 | ## Boot Option Settings |
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473 | ################################################################################ |
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474 | |||
475 | ## disable_commandline_tags |
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476 | ## Stop start.elf from filling in ATAGS (memory from 0x100) before |
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477 | ## launching kernel |
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478 | ## |
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479 | #disable_commandline_tags=2 |
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480 | |||
481 | ## enable_uart |
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482 | ## Enables or disables uart pin multiplexing |
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483 | ## Raspberry Pi 1/2: if unset, uart is enabled by default |
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484 | ## Raspberry Pi 3: if unset uart is disabled by default |
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485 | ## |
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486 | enable_uart=1 |
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487 | |||
488 | ## cmdline (string) |
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489 | ## Command line parameters. Can be used instead of cmdline.txt file |
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490 | ## |
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491 | #cmdline="" |
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492 | |||
493 | ## kernel (string) |
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494 | ## Alternative name to use when loading kernel. |
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495 | ## |
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496 | #kernel="" |
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497 | |||
498 | ## kernel_address |
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499 | ## Address to load kernel.img file at |
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500 | ## |
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501 | #kernel_address=0x8000 |
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502 | |||
503 | ## ramfsfile (string) |
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504 | ## ramfs file to load |
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505 | ## |
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506 | #ramfsfile="" |
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507 | |||
508 | ## ramfsaddr |
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509 | ## Address to load ramfs file at |
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510 | ## |
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511 | #ramfsaddr=0x00000000 |
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512 | |||
513 | ## initramfs (string address) |
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514 | ## ramfs file and address to load it at (it's like ramfsfile+ramfsaddr in |
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515 | ## one option). |
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516 | ## |
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517 | ## NOTE: this option uses different syntax than all other options - you |
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518 | ## should not use "=" character here. |
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519 | ## |
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520 | #initramfs initramf.gz 0x00800000 |
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521 | |||
522 | ## device_tree_address |
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523 | ## Address to load device_tree at |
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524 | ## |
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525 | #device_tree_address=0x100 |
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526 | |||
527 | ## init_uart_baud |
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528 | ## Initial uart baud rate. |
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529 | ## |
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530 | ## Default 115200 |
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531 | ## |
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532 | #init_uart_baud=115200 |
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533 | |||
534 | ## init_uart_clock |
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535 | ## Initial uart clock. |
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536 | ## |
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537 | ## Default 3000000 (3MHz) |
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538 | ## |
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539 | #init_uart_clock=3000000 |
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540 | |||
541 | ## init_emmc_clock |
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542 | ## Initial emmc clock, increasing this can speedup your SD-card. |
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543 | ## |
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544 | ## Default 100000000 (100mhz) |
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545 | ## |
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546 | #init_emmc_clock=100000000 |
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547 | |||
548 | ## boot_delay |
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549 | ## Wait for a given number of seconds in start.elf before loading |
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550 | ## kernel.img. |
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551 | ## |
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552 | ## delay = (1000 * boot_delay) + boot_delay_ms |
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553 | ## |
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554 | ## Default 1 |
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555 | ## |
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556 | #boot_delay=0 |
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557 | |||
558 | ## boot_delay_ms |
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559 | ## Wait for a given number of milliseconds in start.elf before loading |
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560 | ## kernel.img. |
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561 | ## |
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562 | ## delay = (1000 * boot_delay) + boot_delay_ms |
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563 | ## |
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564 | ## Default 0 |
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565 | ## |
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566 | #boot_delay_ms=0 |
||
567 | |||
568 | ## avoid_safe_mode |
||
569 | ## Adding a jumper between pins 5 & 6 of P1 enables a recovery Safe Mode. |
||
570 | ## If pins 5 & 6 are used for connecting to external devices (e.g. GPIO), |
||
571 | ## then this setting can be used to ensure Safe Mode is not triggered. |
||
572 | ## |
||
573 | ## Value Description |
||
574 | ## ------------------------------------------------------------------------- |
||
575 | ## 0 Respect Safe Mode input (Default) |
||
576 | ## 1 Ignore Safe Mode input |
||
577 | ## |
||
578 | #avoid_safe_mode=1 |
||
579 | |||
580 | ################################################################################ |
||
581 | ## Overclocking Settings |
||
582 | ## |
||
583 | ## ARM, SDRAM and GPU each have their own PLLs and can have unrelated |
||
584 | ## frequencies. |
||
585 | ## |
||
586 | ## The GPU core, h264, v3d and isp share a PLL, so need to have related |
||
587 | ## frequencies. |
||
588 | ## pll_freq = floor(2400 / (2 * core_freq)) * (2 * core_freq) |
||
589 | ## gpu_freq = pll_freq / [even number] |
||
590 | ## |
||
591 | ## The effective gpu_freq is automatically rounded to nearest even integer, so |
||
592 | ## asking for core_freq = 500 and gpu_freq = 300 will result in divisor of |
||
593 | ## 2000/300 = 6.666 => 6 and so 333.33MHz. |
||
594 | ## |
||
595 | ## |
||
596 | ## Standard Profiles: |
||
597 | ## arm_freq core_freq sdram_freq over_voltage |
||
598 | ## ------------------------------------------------------------------------- |
||
599 | ## None 700 250 400 0 |
||
600 | ## Modest 800 300 400 0 |
||
601 | ## Medium 900 333 450 2 |
||
602 | ## High 950 450 450 6 |
||
603 | ## Turbo 1000 500 500 6 |
||
604 | ## |
||
605 | ################################################################################ |
||
606 | |||
607 | ## force_turbo |
||
608 | ## Control the kernel "ondemand" governor. It has no effect if no overclock |
||
609 | ## settings are specified. |
||
610 | ## |
||
611 | ## Value Description |
||
612 | ## ------------------------------------------------------------------------- |
||
613 | ## 0 Enable dynamic clocks and voltage for the ARM core, GPU core and |
||
614 | ## SDRAM (Default). |
||
615 | ## Overclocking of h264_freq, v3d_freq and isp_freq is ignored. |
||
616 | ## 1 Disable dynamic clocks and voltage for the ARM core, GPU core |
||
617 | ## and SDRAM. |
||
618 | ## Overclocking of h264_freq, v3d_freq and isp_freq is allowed. |
||
619 | ## |
||
620 | #force_turbo=0 |
||
621 | |||
622 | ## initial_turbo |
||
623 | ## Enables turbo mode from boot for the given value in seconds (up to 60) |
||
624 | ## or until cpufreq sets a frequency. Can help with sdcard corruption if |
||
625 | ## overclocked. |
||
626 | ## |
||
627 | ## Default 0 |
||
628 | ## |
||
629 | #initial_turbo=0 |
||
630 | |||
631 | ## temp_limit |
||
632 | ## Overheat protection. Sets clocks and voltages to default when the SoC |
||
633 | ## reaches this Celsius value. |
||
634 | ## Setting this higher than default voids warranty. |
||
635 | ## |
||
636 | ## Default 85 |
||
637 | ## |
||
638 | #temp_limit=85 |
||
639 | |||
640 | ## arm_freq |
||
641 | ## Frequency of ARM in MHz. |
||
642 | ## |
||
643 | ## Default 700. |
||
644 | ## |
||
645 | #arm_freq=700 |
||
646 | |||
647 | ## arm_freq_min |
||
648 | ## Minimum frequency of ARM in MHz (used for dynamic clocking). |
||
649 | ## |
||
650 | ## Default 700. |
||
651 | ## |
||
652 | #arm_freq_min=700 |
||
653 | |||
654 | ## gpu_freq |
||
655 | ## Sets core_freq, h264_freq, isp_freq, v3d_freq together. |
||
656 | ## |
||
657 | ## Default 250. |
||
658 | ## |
||
659 | #gpu_freq=250 |
||
660 | |||
661 | ## core_freq |
||
662 | ## Frequency of GPU processor core in MHz. It has an impact on ARM |
||
663 | ## performance since it drives L2 cache. |
||
664 | ## |
||
665 | ## Default 250. |
||
666 | ## |
||
667 | #core_freq=250 |
||
668 | |||
669 | ## core_freq_min |
||
670 | ## Minimum frequency of GPU processor core in MHz (used for dynamic |
||
671 | ## clocking). It has an impact on ARM performance since it drives L2 cache. |
||
672 | ## |
||
673 | ## Default 250. |
||
674 | ## |
||
675 | #core_freq_min=250 |
||
676 | |||
677 | ## h264_freq |
||
678 | ## Frequency of hardware video block in MHz. |
||
679 | ## |
||
680 | ## Default 250. |
||
681 | ## |
||
682 | #h264_freq=250 |
||
683 | |||
684 | ## isp_freq |
||
685 | ## Frequency of image sensor pipeline block in MHz. |
||
686 | ## |
||
687 | ## Default 250. |
||
688 | ## |
||
689 | #isp_freq=250 |
||
690 | |||
691 | ## v3d_freq |
||
692 | ## Frequency of 3D block in MHz. |
||
693 | ## |
||
694 | ## Default 250. |
||
695 | ## |
||
696 | #v3d_freq=250 |
||
697 | |||
698 | ## sdram_freq |
||
699 | ## Frequency of SDRAM in MHz. |
||
700 | ## |
||
701 | ## Default 400. |
||
702 | ## |
||
703 | #sdram_freq=400 |
||
704 | |||
705 | ## sdram_freq_min |
||
706 | ## Minimum frequency of SDRAM in MHz (used for dynamic clocking). |
||
707 | ## |
||
708 | ## Default 400. |
||
709 | ## |
||
710 | #sdram_freq_min=400 |
||
711 | |||
712 | ## avoid_pwm_pll |
||
713 | ## Unlink core_freq from the rest of the gpu. Analog audio should still |
||
714 | ## work, but from a fractional divider, so lower quality. |
||
715 | ## |
||
716 | ## Value Description |
||
717 | ## ------------------------------------------------------------------------- |
||
718 | ## 0 Linked core_freq (Default) |
||
719 | ## 1 Unlinked core_freq |
||
720 | ## |
||
721 | #avoid_pwm_pll=1 |
||
722 | |||
723 | ################################################################################ |
||
724 | ## Voltage Settings |
||
725 | ################################################################################ |
||
726 | |||
727 | ## current_limit_override |
||
728 | ## Disables SMPS current limit protection. Can help if you are currently |
||
729 | ## hitting a reboot failure when overclocking too high. |
||
730 | ## |
||
731 | #current_limit_override=0x5A000020 |
||
732 | |||
733 | ## over_voltage |
||
734 | ## ARM/GPU core voltage adjust. |
||
735 | ## |
||
736 | ## Value Description |
||
737 | ## ------------------------------------------------------------------------- |
||
738 | ## -16 0.8 V |
||
739 | ## -15 0.825 V |
||
740 | ## -14 0.85 V |
||
741 | ## -13 0.875 V |
||
742 | ## -12 0.9 V |
||
743 | ## -11 0.925 V |
||
744 | ## -10 0.95 V |
||
745 | ## -9 0.975 V |
||
746 | ## -8 1.0 V |
||
747 | ## -7 1.025 V |
||
748 | ## -6 1.05 V |
||
749 | ## -5 1.075 V |
||
750 | ## -4 1.1 V |
||
751 | ## -3 1.125 V |
||
752 | ## -2 1.15 V |
||
753 | ## -1 1.175 V |
||
754 | ## 0 1.2 V (Default) |
||
755 | ## 1 1.225 V |
||
756 | ## 2 1.25 V |
||
757 | ## 3 1.275 V |
||
758 | ## 4 1.3 V |
||
759 | ## 5 1.325 V |
||
760 | ## 6 1.35 V |
||
761 | ## 7 1.375 V (requires force_turbo=1) |
||
762 | ## 8 1.4 V (requires force_turbo=1) |
||
763 | ## |
||
764 | #over_voltage=0 |
||
765 | |||
766 | ## over_voltage_min |
||
767 | ## Minimum ARM/GPU core voltage adjust (used for dynamic clocking). |
||
768 | ## |
||
769 | ## Value Description |
||
770 | ## ------------------------------------------------------------------------- |
||
771 | ## -16 0.8 V |
||
772 | ## -15 0.825 V |
||
773 | ## -14 0.85 V |
||
774 | ## -13 0.875 V |
||
775 | ## -12 0.9 V |
||
776 | ## -11 0.925 V |
||
777 | ## -10 0.95 V |
||
778 | ## -9 0.975 V |
||
779 | ## -8 1.0 V |
||
780 | ## -7 1.025 V |
||
781 | ## -6 1.05 V |
||
782 | ## -5 1.075 V |
||
783 | ## -4 1.1 V |
||
784 | ## -3 1.125 V |
||
785 | ## -2 1.15 V |
||
786 | ## -1 1.175 V |
||
787 | ## 0 1.2 V (Default) |
||
788 | ## 1 1.225 V |
||
789 | ## 2 1.25 V |
||
790 | ## 3 1.275 V |
||
791 | ## 4 1.3 V |
||
792 | ## 5 1.325 V |
||
793 | ## 6 1.35 V |
||
794 | ## 7 1.375 V (requires force_turbo=1) |
||
795 | ## 8 1.4 V (requires force_turbo=1) |
||
796 | ## |
||
797 | #over_voltage_min=0 |
||
798 | |||
799 | ## over_voltage_sdram |
||
800 | ## Sets over_voltage_sdram_c, over_voltage_sdram_i, over_voltage_sdram_p |
||
801 | ## together |
||
802 | ## |
||
803 | ## Value Description |
||
804 | ## ------------------------------------------------------------------------- |
||
805 | ## -16 0.8 V |
||
806 | ## -15 0.825 V |
||
807 | ## -14 0.85 V |
||
808 | ## -13 0.875 V |
||
809 | ## -12 0.9 V |
||
810 | ## -11 0.925 V |
||
811 | ## -10 0.95 V |
||
812 | ## -9 0.975 V |
||
813 | ## -8 1.0 V |
||
814 | ## -7 1.025 V |
||
815 | ## -6 1.05 V |
||
816 | ## -5 1.075 V |
||
817 | ## -4 1.1 V |
||
818 | ## -3 1.125 V |
||
819 | ## -2 1.15 V |
||
820 | ## -1 1.175 V |
||
821 | ## 0 1.2 V (Default) |
||
822 | ## 1 1.225 V |
||
823 | ## 2 1.25 V |
||
824 | ## 3 1.275 V |
||
825 | ## 4 1.3 V |
||
826 | ## 5 1.325 V |
||
827 | ## 6 1.35 V |
||
828 | ## 7 1.375 V |
||
829 | ## 8 1.4 V |
||
830 | ## |
||
831 | #over_voltage_sdram=0 |
||
832 | |||
833 | ## over_voltage_sdram_c |
||
834 | ## SDRAM controller voltage adjust. |
||
835 | ## |
||
836 | ## Value Description |
||
837 | ## ------------------------------------------------------------------------- |
||
838 | ## -16 0.8 V |
||
839 | ## -15 0.825 V |
||
840 | ## -14 0.85 V |
||
841 | ## -13 0.875 V |
||
842 | ## -12 0.9 V |
||
843 | ## -11 0.925 V |
||
844 | ## -10 0.95 V |
||
845 | ## -9 0.975 V |
||
846 | ## -8 1.0 V |
||
847 | ## -7 1.025 V |
||
848 | ## -6 1.05 V |
||
849 | ## -5 1.075 V |
||
850 | ## -4 1.1 V |
||
851 | ## -3 1.125 V |
||
852 | ## -2 1.15 V |
||
853 | ## -1 1.175 V |
||
854 | ## 0 1.2 V (Default) |
||
855 | ## 1 1.225 V |
||
856 | ## 2 1.25 V |
||
857 | ## 3 1.275 V |
||
858 | ## 4 1.3 V |
||
859 | ## 5 1.325 V |
||
860 | ## 6 1.35 V |
||
861 | ## 7 1.375 V |
||
862 | ## 8 1.4 V |
||
863 | ## |
||
864 | #over_voltage_sdram_c=0 |
||
865 | |||
866 | ## over_voltage_sdram_i |
||
867 | ## SDRAM I/O voltage adjust. |
||
868 | ## |
||
869 | ## Value Description |
||
870 | ## ------------------------------------------------------------------------- |
||
871 | ## -16 0.8 V |
||
872 | ## -15 0.825 V |
||
873 | ## -14 0.85 V |
||
874 | ## -13 0.875 V |
||
875 | ## -12 0.9 V |
||
876 | ## -11 0.925 V |
||
877 | ## -10 0.95 V |
||
878 | ## -9 0.975 V |
||
879 | ## -8 1.0 V |
||
880 | ## -7 1.025 V |
||
881 | ## -6 1.05 V |
||
882 | ## -5 1.075 V |
||
883 | ## -4 1.1 V |
||
884 | ## -3 1.125 V |
||
885 | ## -2 1.15 V |
||
886 | ## -1 1.175 V |
||
887 | ## 0 1.2 V (Default) |
||
888 | ## 1 1.225 V |
||
889 | ## 2 1.25 V |
||
890 | ## 3 1.275 V |
||
891 | ## 4 1.3 V |
||
892 | ## 5 1.325 V |
||
893 | ## 6 1.35 V |
||
894 | ## 7 1.375 V |
||
895 | ## 8 1.4 V |
||
896 | ## |
||
897 | #over_voltage_sdram_i=0 |
||
898 | |||
899 | ## over_voltage_sdram_p |
||
900 | ## SDRAM phy voltage adjust. |
||
901 | ## |
||
902 | ## Value Description |
||
903 | ## ------------------------------------------------------------------------- |
||
904 | ## -16 0.8 V |
||
905 | ## -15 0.825 V |
||
906 | ## -14 0.85 V |
||
907 | ## -13 0.875 V |
||
908 | ## -12 0.9 V |
||
909 | ## -11 0.925 V |
||
910 | ## -10 0.95 V |
||
911 | ## -9 0.975 V |
||
912 | ## -8 1.0 V |
||
913 | ## -7 1.025 V |
||
914 | ## -6 1.05 V |
||
915 | ## -5 1.075 V |
||
916 | ## -4 1.1 V |
||
917 | ## -3 1.125 V |
||
918 | ## -2 1.15 V |
||
919 | ## -1 1.175 V |
||
920 | ## 0 1.2 V (Default) |
||
921 | ## 1 1.225 V |
||
922 | ## 2 1.25 V |
||
923 | ## 3 1.275 V |
||
924 | ## 4 1.3 V |
||
925 | ## 5 1.325 V |
||
926 | ## 6 1.35 V |
||
927 | ## 7 1.375 V |
||
928 | ## 8 1.4 V |
||
929 | ## |
||
930 | #over_voltage_sdram_p=0 |
||
931 | |||
932 | ################################################################################ |
||
933 | ## Device Tree Settings |
||
934 | ################################################################################ |
||
935 | |||
936 | dtparam=random=on |
||
937 | dtparam=watchdog=on |
||
938 | dtparam=audio=on |
||
939 | dtparam=i2c0=on |
||
940 | dtparam=i2c1=on |
||
941 | dtparam=spi=on |
||
942 | |||
943 | #dtoverlay=adau1977-adc |
||
944 | #dtoverlay=allo-piano-dac-pcm512x-audio |
||
945 | #dtoverlay=audioinjector-wm8731-audio |
||
946 | #dtoverlay=dionaudio-loco |
||
947 | #dtoverlay=hifiberry-amp |
||
948 | #dtoverlay=hifiberry-dac |
||
949 | #dtoverlay=hifiberry-dacplus |
||
950 | #dtoverlay=hifiberry-digi |
||
951 | #dtoverlay=hifiberry-digi-pro |
||
952 | #dtoverlay=iqaudio-dac |
||
953 | #dtoverlay=iqaudio-dacplus |
||
954 | #dtoverlay=iqaudio-digi-wm8804-audio |
||
955 | #dtoverlay=justboom-dac |
||
956 | #dtoverlay=justboom-digi |
||
957 | #dtoverlay=pisound |
||
958 | #dtoverlay=raspidac3 |
||
959 | #dtoverlay=rpi-dac |
||
960 | #dtoverlay=rpi-proto |
||
961 | #dtoverlay=rra-digidac1-wm8741-audio |