| menu "LED Support" |
| |
| config LED |
| bool "Enable LED support" |
| depends on DM |
| help |
| Many boards have LEDs which can be used to signal status or alerts. |
| U-Boot provides a uclass API to implement this feature. LED drivers |
| can provide access to board-specific LEDs. Use of the device tree |
| for configuration is encouraged. |
| |
| config LED_BOOT |
| bool "Enable LED boot support" |
| depends on LED |
| help |
| Enable LED boot support. |
| |
| LED boot is a specific LED assigned to signal boot operation status. |
| Defined in Device Tree /options/u-boot node. Refer here for the supported |
| options [1]. |
| |
| [1] dtschema/schemas/options/u-boot.yaml |
| |
| config LED_ACTIVITY |
| bool "Enable LED activity support" |
| depends on LED |
| help |
| Enable LED activity support. |
| |
| LED activity is a specific LED assigned to signal activity operation |
| like file trasnfer, flash write/erase... |
| |
| Defined in Device Tree /options/u-boot node. Refer here for the supported |
| options [1]. |
| |
| [1] dtschema/schemas/options/u-boot.yaml |
| |
| config LED_BCM6328 |
| bool "LED Support for BCM6328" |
| depends on LED && ARCH_BMIPS |
| help |
| This option enables support for LEDs connected to the BCM6328 |
| LED HW controller accessed via MMIO registers. |
| HW blinking is supported and up to 24 LEDs can be controlled. |
| All LEDs can blink at the same time but the delay is shared, which |
| means that if one LED is set to blink at 100ms and then a different |
| LED is set to blink at 200ms, both will blink at 200ms. |
| |
| config LED_BCM6358 |
| bool "LED Support for BCM6358" |
| depends on LED && ARCH_BMIPS |
| help |
| This option enables support for LEDs connected to the BCM6358 |
| LED HW controller accessed via MMIO registers. |
| HW has no blinking capabilities and up to 32 LEDs can be controlled. |
| |
| config LED_BCM6753 |
| bool "LED Support for BCM6753" |
| depends on LED && BCM6855 |
| help |
| This option enables support for LEDs connected to the BCM6753 |
| HW has blinking and fading capabilities and up to 32 LEDs can be controlled. |
| |
| config LED_BCM6858 |
| bool "LED Support for BCM6858" |
| depends on LED && (BCM6856 || BCM6858 || BCM63158) |
| help |
| This option enables support for LEDs connected to the BCM6858 |
| HW has blinking capabilities and up to 32 LEDs can be controlled. |
| |
| config LED_CORTINA |
| bool "LED Support for Cortina Access CAxxxx SoCs" |
| depends on LED && (CORTINA_PLATFORM) |
| help |
| This option enables support for LEDs connected to the Cortina |
| Access CAxxxx SOCs. |
| |
| config LED_LP5562 |
| bool "LED Support for LP5562" |
| depends on LED && DM_I2C |
| help |
| This option enables support for LEDs connected to the TI LP5562 |
| 4 channel I2C LED controller. Driver fully supports blink on the |
| B/G/R LEDs. White LED can blink, but re-uses the period from blue. |
| |
| config LED_PWM |
| bool "LED PWM" |
| depends on LED && DM_PWM |
| help |
| Enable support for LEDs connected to PWM. |
| Linux compatible ofdata. |
| |
| config LED_BLINK |
| bool "Support hardware LED blinking" |
| depends on LED |
| help |
| Some drivers can support automatic blinking of LEDs with a given |
| period, without needing timers or extra code to handle the timing. |
| This option enables support for this which adds slightly to the |
| code size. |
| |
| config LED_SW_BLINK |
| bool "Support software LED blinking" |
| depends on LED |
| select CYCLIC |
| help |
| Turns on led blinking implemented in the software, useful when |
| the hardware doesn't support led blinking. Half of the period |
| led will be ON and the rest time it will be OFF. Standard |
| led commands can be used to configure blinking. Does nothing |
| if driver supports hardware blinking. |
| WARNING: Blinking may be inaccurate during execution of time |
| consuming commands (ex. flash reading). Also it completely |
| stops during OS booting. |
| |
| config SPL_LED |
| bool "Enable LED support in SPL" |
| depends on SPL_DM |
| help |
| The LED subsystem adds a small amount of overhead to the image. |
| If this is acceptable and you have a need to use LEDs in SPL, |
| enable this option. You will need to enable device tree in SPL |
| for this to work. |
| |
| config LED_GPIO |
| bool "LED support for GPIO-connected LEDs" |
| depends on LED && DM_GPIO |
| help |
| Enable support for LEDs which are connected to GPIO lines. These |
| GPIOs may be on the SoC or some other device which provides GPIOs. |
| The GPIO driver must used driver model. LEDs are configured using |
| the device tree. |
| |
| config SPL_LED_GPIO |
| bool "LED support for GPIO-connected LEDs in SPL" |
| depends on SPL_LED && SPL_DM_GPIO |
| help |
| This option is an SPL-variant of the LED_GPIO option. |
| See the help of LED_GPIO for details. |
| |
| endmenu |
