1menu "LED Support" 2 3config LED 4 bool "Enable LED support" 5 depends on DM 6 help 7 Many boards have LEDs which can be used to signal status or alerts. 8 U-Boot provides a uclass API to implement this feature. LED drivers 9 can provide access to board-specific LEDs. Use of the device tree 10 for configuration is encouraged. 11 12config LED_BCM6328 13 bool "LED Support for BCM6328" 14 depends on LED && ARCH_BMIPS 15 help 16 This option enables support for LEDs connected to the BCM6328 17 LED HW controller accessed via MMIO registers. 18 HW blinking is supported and up to 24 LEDs can be controlled. 19 All LEDs can blink at the same time but the delay is shared, which 20 means that if one LED is set to blink at 100ms and then a different 21 LED is set to blink at 200ms, both will blink at 200ms. 22 23config LED_BCM6358 24 bool "LED Support for BCM6358" 25 depends on LED && ARCH_BMIPS 26 help 27 This option enables support for LEDs connected to the BCM6358 28 LED HW controller accessed via MMIO registers. 29 HW has no blinking capabilities and up to 32 LEDs can be controlled. 30 31config LED_BCM6858 32 bool "LED Support for BCM6858" 33 depends on LED && (ARCH_BCM6858 || ARCH_BCM63158) 34 help 35 This option enables support for LEDs connected to the BCM6858 36 HW has blinking capabilities and up to 32 LEDs can be controlled. 37 38config LED_BLINK 39 bool "Support LED blinking" 40 depends on LED 41 help 42 Some drivers can support automatic blinking of LEDs with a given 43 period, without needing timers or extra code to handle the timing. 44 This option enables support for this which adds slightly to the 45 code size. 46 47config SPL_LED 48 bool "Enable LED support in SPL" 49 depends on SPL && SPL_DM 50 help 51 The LED subsystem adds a small amount of overhead to the image. 52 If this is acceptable and you have a need to use LEDs in SPL, 53 enable this option. You will need to enable device tree in SPL 54 for this to work. 55 56config LED_GPIO 57 bool "LED support for GPIO-connected LEDs" 58 depends on LED && DM_GPIO 59 help 60 Enable support for LEDs which are connected to GPIO lines. These 61 GPIOs may be on the SoC or some other device which provides GPIOs. 62 The GPIO driver must used driver model. LEDs are configured using 63 the device tree. 64 65config SPL_LED_GPIO 66 bool "LED support for GPIO-connected LEDs in SPL" 67 depends on SPL_LED && DM_GPIO 68 help 69 This option is an SPL-variant of the LED_GPIO option. 70 See the help of LED_GPIO for details. 71 72config LED_STATUS 73 bool "Enable status LED API" 74 help 75 Allows common u-boot commands to use a board's leds to 76 provide status for activities like booting and downloading files. 77 78if LED_STATUS 79 80# Hidden constants 81 82config LED_STATUS_OFF 83 int 84 default 0 85 86config LED_STATUS_BLINKING 87 int 88 default 1 89 90config LED_STATUS_ON 91 int 92 default 2 93 94# Hidden constants end 95 96config LED_STATUS_GPIO 97 bool "GPIO status LED implementation" 98 help 99 The status LED can be connected to a GPIO pin. In such cases, the 100 gpio_led driver can be used as a status LED backend implementation. 101 102config LED_STATUS_BOARD_SPECIFIC 103 bool "Specific board" 104 default y 105 help 106 LED support is only for a specific board. 107 108comment "LEDs parameters" 109 110config LED_STATUS0 111 bool "Enable status LED 0" 112 113if LED_STATUS0 114 115config LED_STATUS_BIT 116 int "identification" 117 help 118 CONFIG_LED_STATUS_BIT is passed into the __led_* functions to identify 119 which LED is being acted on. As such, the chosen value must be unique 120 with respect to the other CONFIG_LED_STATUS_BIT's. Mapping the value 121 to a physical LED is the responsibility of the __led_* function. 122 123config LED_STATUS_STATE 124 int "initial state" 125 range LED_STATUS_OFF LED_STATUS_ON 126 default LED_STATUS_OFF 127 help 128 Should be set one of the following: 129 0 - off 130 1 - blinking 131 2 - on 132 133config LED_STATUS_FREQ 134 int "blink frequency" 135 range 2 10 136 default 2 137 help 138 The LED blink period calculated from LED_STATUS_FREQ: 139 LED_STATUS_PERIOD = CONFIG_SYS_HZ/LED_STATUS_FREQ 140 Values range: 2 - 10 141 142endif # LED_STATUS0 143 144config LED_STATUS1 145 bool "Enable status LED 1" 146 147if LED_STATUS1 148 149config LED_STATUS_BIT1 150 int "identification" 151 help 152 CONFIG_LED_STATUS_BIT1 is passed into the __led_* functions to 153 identify which LED is being acted on. As such, the chosen value must 154 be unique with respect to the other CONFIG_LED_STATUS_BIT's. Mapping 155 the value to a physical LED is the responsibility of the __led_* 156 function. 157 158config LED_STATUS_STATE1 159 int "initial state" 160 range LED_STATUS_OFF LED_STATUS_ON 161 default LED_STATUS_OFF 162 help 163 Should be set one of the following: 164 0 - off 165 1 - blinking 166 2 - on 167 168config LED_STATUS_FREQ1 169 int "blink frequency" 170 range 2 10 171 default 2 172 help 173 The LED blink period calculated from LED_STATUS_FREQ1: 174 LED_STATUS_PERIOD1 = CONFIG_SYS_HZ/LED_STATUS_FREQ1 175 Values range: 2 - 10 176 177endif # LED_STATUS1 178 179config LED_STATUS2 180 bool "Enable status LED 2" 181 182if LED_STATUS2 183 184config LED_STATUS_BIT2 185 int "identification" 186 help 187 CONFIG_LED_STATUS_BIT2 is passed into the __led_* functions to 188 identify which LED is being acted on. As such, the chosen value must 189 be unique with respect to the other CONFIG_LED_STATUS_BIT's. Mapping 190 the value to a physical LED is the responsibility of the __led_* 191 function. 192 193config LED_STATUS_STATE2 194 int "initial state" 195 range LED_STATUS_OFF LED_STATUS_ON 196 default LED_STATUS_OFF 197 help 198 Should be set one of the following: 199 0 - off 200 1 - blinking 201 2 - on 202 203config LED_STATUS_FREQ2 204 int "blink frequency" 205 range 2 10 206 default 2 207 help 208 The LED blink period calculated from LED_STATUS_FREQ2: 209 LED_STATUS_PERIOD2 = CONFIG_SYS_HZ/LED_STATUS_FREQ2 210 Values range: 2 - 10 211 212endif # LED_STATUS2 213 214config LED_STATUS3 215 bool "Enable status LED 3" 216 217if LED_STATUS3 218 219config LED_STATUS_BIT3 220 int "identification" 221 help 222 CONFIG_LED_STATUS_BIT3 is passed into the __led_* functions to 223 identify which LED is being acted on. As such, the chosen value must 224 be unique with respect to the other CONFIG_LED_STATUS_BIT's. Mapping 225 the value to a physical LED is the responsibility of the __led_* 226 function. 227 228config LED_STATUS_STATE3 229 int "initial state" 230 range LED_STATUS_OFF LED_STATUS_ON 231 default LED_STATUS_OFF 232 help 233 Should be set one of the following: 234 0 - off 235 1 - blinking 236 2 - on 237 238config LED_STATUS_FREQ3 239 int "blink frequency" 240 range 2 10 241 default 2 242 help 243 The LED blink period calculated from LED_STATUS_FREQ3: 244 LED_STATUS_PERIOD3 = CONFIG_SYS_HZ/LED_STATUS_FREQ3 245 Values range: 2 - 10 246 247endif # LED_STATUS3 248 249config LED_STATUS4 250 bool "Enable status LED 4" 251 252if LED_STATUS4 253 254config LED_STATUS_BIT4 255 int "identification" 256 help 257 CONFIG_LED_STATUS_BIT4 is passed into the __led_* functions to 258 identify which LED is being acted on. As such, the chosen value must 259 be unique with respect to the other CONFIG_LED_STATUS_BIT's. Mapping 260 the value to a physical LED is the responsibility of the __led_* 261 function. 262 263config LED_STATUS_STATE4 264 int "initial state" 265 range LED_STATUS_OFF LED_STATUS_ON 266 default LED_STATUS_OFF 267 help 268 Should be set one of the following: 269 0 - off 270 1 - blinking 271 2 - on 272 273config LED_STATUS_FREQ4 274 int "blink frequency" 275 range 2 10 276 default 2 277 help 278 The LED blink period calculated from LED_STATUS_FREQ4: 279 LED_STATUS_PERIOD4 = CONFIG_SYS_HZ/LED_STATUS_FREQ4 280 Values range: 2 - 10 281 282endif # LED_STATUS4 283 284config LED_STATUS5 285 bool "Enable status LED 5" 286 287if LED_STATUS5 288 289config LED_STATUS_BIT5 290 int "identification" 291 help 292 CONFIG_LED_STATUS_BIT5 is passed into the __led_* functions to 293 identify which LED is being acted on. As such, the chosen value must 294 be unique with respect to the other CONFIG_LED_STATUS_BIT's. Mapping 295 the value to a physical LED is the responsibility of the __led_* 296 function. 297 298config LED_STATUS_STATE5 299 int "initial state" 300 range LED_STATUS_OFF LED_STATUS_ON 301 default LED_STATUS_OFF 302 help 303 Should be set one of the following: 304 0 - off 305 1 - blinking 306 2 - on 307 308config LED_STATUS_FREQ5 309 int "blink frequency" 310 range 2 10 311 default 2 312 help 313 The LED blink period calculated from LED_STATUS_FREQ5: 314 LED_STATUS_PERIOD5 = CONFIG_SYS_HZ/LED_STATUS_FREQ5 315 Values range: 2 - 10 316 317endif # LED_STATUS5 318 319config LED_STATUS_BOOT_ENABLE 320 bool "Enable BOOT LED" 321 help 322 Enable to turn an LED on when the board is booting. 323 324if LED_STATUS_BOOT_ENABLE 325 326config LED_STATUS_BOOT 327 int "LED to light when the board is booting" 328 help 329 Valid enabled LED device number. 330 331endif # LED_STATUS_BOOT_ENABLE 332 333config LED_STATUS_RED_ENABLE 334 bool "Enable red LED" 335 help 336 Enable red status LED. 337 338if LED_STATUS_RED_ENABLE 339 340config LED_STATUS_RED 341 int "Red LED identification" 342 help 343 Valid enabled LED device number. 344 345endif # LED_STATUS_RED_ENABLE 346 347config LED_STATUS_YELLOW_ENABLE 348 bool "Enable yellow LED" 349 help 350 Enable yellow status LED. 351 352if LED_STATUS_YELLOW_ENABLE 353 354config LED_STATUS_YELLOW 355 int "Yellow LED identification" 356 help 357 Valid enabled LED device number. 358 359endif # LED_STATUS_YELLOW_ENABLE 360 361config LED_STATUS_BLUE_ENABLE 362 bool "Enable blue LED" 363 help 364 Enable blue status LED. 365 366if LED_STATUS_BLUE_ENABLE 367 368config LED_STATUS_BLUE 369 int "Blue LED identification" 370 help 371 Valid enabled LED device number. 372 373endif # LED_STATUS_BLUE_ENABLE 374 375config LED_STATUS_GREEN_ENABLE 376 bool "Enable green LED" 377 help 378 Enable green status LED. 379 380if LED_STATUS_GREEN_ENABLE 381 382config LED_STATUS_GREEN 383 int "Green LED identification" 384 help 385 Valid enabled LED device number (0-5). 386 387endif # LED_STATUS_GREEN_ENABLE 388 389config LED_STATUS_CMD 390 bool "Enable status LED commands" 391 392endif # LED_STATUS 393 394endmenu 395