menu "LED Support"
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config LED
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bool "Enable LED support"
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depends on DM
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help
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Many boards have LEDs which can be used to signal status or alerts.
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U-Boot provides a uclass API to implement this feature. LED drivers
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can provide access to board-specific LEDs. Use of the device tree
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for configuration is encouraged.
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config LED_BCM6328
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bool "LED Support for BCM6328"
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depends on LED && ARCH_BMIPS
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help
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This option enables support for LEDs connected to the BCM6328
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LED HW controller accessed via MMIO registers.
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HW blinking is supported and up to 24 LEDs can be controlled.
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All LEDs can blink at the same time but the delay is shared, which
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means that if one LED is set to blink at 100ms and then a different
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LED is set to blink at 200ms, both will blink at 200ms.
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config LED_BCM6358
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bool "LED Support for BCM6358"
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depends on LED && ARCH_BMIPS
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help
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This option enables support for LEDs connected to the BCM6358
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LED HW controller accessed via MMIO registers.
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HW has no blinking capabilities and up to 32 LEDs can be controlled.
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config LED_BLINK
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bool "Support LED blinking"
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depends on LED
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help
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Some drivers can support automatic blinking of LEDs with a given
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period, without needing timers or extra code to handle the timing.
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This option enables support for this which adds slightly to the
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code size.
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config SPL_LED
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bool "Enable LED support in SPL"
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depends on SPL && SPL_DM
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help
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The LED subsystem adds a small amount of overhead to the image.
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If this is acceptable and you have a need to use LEDs in SPL,
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enable this option. You will need to enable device tree in SPL
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for this to work.
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config LED_GPIO
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bool "LED support for GPIO-connected LEDs"
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depends on LED && DM_GPIO
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help
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Enable support for LEDs which are connected to GPIO lines. These
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GPIOs may be on the SoC or some other device which provides GPIOs.
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The GPIO driver must used driver model. LEDs are configured using
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the device tree.
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config SPL_LED_GPIO
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bool "LED support for GPIO-connected LEDs in SPL"
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depends on SPL_LED && DM_GPIO
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help
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This option is an SPL-variant of the LED_GPIO option.
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See the help of LED_GPIO for details.
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config LED_STATUS
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bool "Enable status LED API"
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help
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Allows common u-boot commands to use a board's leds to
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provide status for activities like booting and downloading files.
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if LED_STATUS
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# Hidden constants
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config LED_STATUS_OFF
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int
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default 0
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config LED_STATUS_BLINKING
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int
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default 1
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config LED_STATUS_ON
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int
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default 2
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# Hidden constants end
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config LED_STATUS_GPIO
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bool "GPIO status LED implementation"
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help
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The status LED can be connected to a GPIO pin. In such cases, the
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gpio_led driver can be used as a status LED backend implementation.
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config LED_STATUS_BOARD_SPECIFIC
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bool "Specific board"
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default y
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help
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LED support is only for a specific board.
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comment "LEDs parameters"
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config LED_STATUS0
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bool "Enable status LED 0"
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if LED_STATUS0
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config LED_STATUS_BIT
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int "identification"
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help
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CONFIG_LED_STATUS_BIT is passed into the __led_* functions to identify
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which LED is being acted on. As such, the chosen value must be unique
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with respect to the other CONFIG_LED_STATUS_BIT's. Mapping the value
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to a physical LED is the responsibility of the __led_* function.
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config LED_STATUS_STATE
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int "initial state"
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range LED_STATUS_OFF LED_STATUS_ON
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default LED_STATUS_OFF
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help
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Should be set one of the following:
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0 - off
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1 - blinking
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2 - on
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config LED_STATUS_FREQ
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int "blink frequency"
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range 2 10
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default 2
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help
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The LED blink period calculated from LED_STATUS_FREQ:
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LED_STATUS_PERIOD = CONFIG_SYS_HZ/LED_STATUS_FREQ
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Values range: 2 - 10
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endif # LED_STATUS0
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config LED_STATUS1
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bool "Enable status LED 1"
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if LED_STATUS1
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config LED_STATUS_BIT1
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int "identification"
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help
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CONFIG_LED_STATUS_BIT1 is passed into the __led_* functions to
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identify which LED is being acted on. As such, the chosen value must
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be unique with respect to the other CONFIG_LED_STATUS_BIT's. Mapping
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the value to a physical LED is the responsibility of the __led_*
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function.
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config LED_STATUS_STATE1
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int "initial state"
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range LED_STATUS_OFF LED_STATUS_ON
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default LED_STATUS_OFF
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help
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Should be set one of the following:
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0 - off
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1 - blinking
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2 - on
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config LED_STATUS_FREQ1
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int "blink frequency"
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range 2 10
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default 2
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help
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The LED blink period calculated from LED_STATUS_FREQ1:
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LED_STATUS_PERIOD1 = CONFIG_SYS_HZ/LED_STATUS_FREQ1
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Values range: 2 - 10
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endif # LED_STATUS1
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config LED_STATUS2
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bool "Enable status LED 2"
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if LED_STATUS2
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config LED_STATUS_BIT2
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int "identification"
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help
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CONFIG_LED_STATUS_BIT2 is passed into the __led_* functions to
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identify which LED is being acted on. As such, the chosen value must
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be unique with respect to the other CONFIG_LED_STATUS_BIT's. Mapping
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the value to a physical LED is the responsibility of the __led_*
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function.
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config LED_STATUS_STATE2
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int "initial state"
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range LED_STATUS_OFF LED_STATUS_ON
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default LED_STATUS_OFF
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help
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Should be set one of the following:
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0 - off
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1 - blinking
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2 - on
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config LED_STATUS_FREQ2
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int "blink frequency"
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range 2 10
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default 2
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help
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The LED blink period calculated from LED_STATUS_FREQ2:
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LED_STATUS_PERIOD2 = CONFIG_SYS_HZ/LED_STATUS_FREQ2
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Values range: 2 - 10
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endif # LED_STATUS2
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config LED_STATUS3
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bool "Enable status LED 3"
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if LED_STATUS3
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config LED_STATUS_BIT3
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int "identification"
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help
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CONFIG_LED_STATUS_BIT3 is passed into the __led_* functions to
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identify which LED is being acted on. As such, the chosen value must
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be unique with respect to the other CONFIG_LED_STATUS_BIT's. Mapping
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the value to a physical LED is the responsibility of the __led_*
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function.
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config LED_STATUS_STATE3
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int "initial state"
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range LED_STATUS_OFF LED_STATUS_ON
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default LED_STATUS_OFF
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help
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Should be set one of the following:
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0 - off
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1 - blinking
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2 - on
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config LED_STATUS_FREQ3
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int "blink frequency"
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range 2 10
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default 2
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help
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The LED blink period calculated from LED_STATUS_FREQ3:
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LED_STATUS_PERIOD3 = CONFIG_SYS_HZ/LED_STATUS_FREQ3
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Values range: 2 - 10
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endif # LED_STATUS3
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config LED_STATUS4
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bool "Enable status LED 4"
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if LED_STATUS4
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config LED_STATUS_BIT4
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int "identification"
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help
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CONFIG_LED_STATUS_BIT4 is passed into the __led_* functions to
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identify which LED is being acted on. As such, the chosen value must
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be unique with respect to the other CONFIG_LED_STATUS_BIT's. Mapping
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the value to a physical LED is the responsibility of the __led_*
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function.
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config LED_STATUS_STATE4
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int "initial state"
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range LED_STATUS_OFF LED_STATUS_ON
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default LED_STATUS_OFF
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help
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Should be set one of the following:
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0 - off
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1 - blinking
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2 - on
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config LED_STATUS_FREQ4
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int "blink frequency"
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range 2 10
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default 2
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help
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The LED blink period calculated from LED_STATUS_FREQ4:
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LED_STATUS_PERIOD4 = CONFIG_SYS_HZ/LED_STATUS_FREQ4
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Values range: 2 - 10
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endif # LED_STATUS4
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config LED_STATUS5
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bool "Enable status LED 5"
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if LED_STATUS5
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config LED_STATUS_BIT5
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int "identification"
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help
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CONFIG_LED_STATUS_BIT5 is passed into the __led_* functions to
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identify which LED is being acted on. As such, the chosen value must
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be unique with respect to the other CONFIG_LED_STATUS_BIT's. Mapping
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the value to a physical LED is the responsibility of the __led_*
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function.
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config LED_STATUS_STATE5
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int "initial state"
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range LED_STATUS_OFF LED_STATUS_ON
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default LED_STATUS_OFF
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help
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Should be set one of the following:
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0 - off
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1 - blinking
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2 - on
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config LED_STATUS_FREQ5
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int "blink frequency"
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range 2 10
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default 2
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help
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The LED blink period calculated from LED_STATUS_FREQ5:
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LED_STATUS_PERIOD5 = CONFIG_SYS_HZ/LED_STATUS_FREQ5
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Values range: 2 - 10
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endif # LED_STATUS5
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config LED_STATUS_BOOT_ENABLE
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bool "Enable BOOT LED"
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help
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Enable to turn an LED on when the board is booting.
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if LED_STATUS_BOOT_ENABLE
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config LED_STATUS_BOOT
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int "LED to light when the board is booting"
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help
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Valid enabled LED device number.
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endif # LED_STATUS_BOOT_ENABLE
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config LED_STATUS_RED_ENABLE
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bool "Enable red LED"
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help
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Enable red status LED.
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if LED_STATUS_RED_ENABLE
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config LED_STATUS_RED
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int "Red LED identification"
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help
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Valid enabled LED device number.
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endif # LED_STATUS_RED_ENABLE
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config LED_STATUS_YELLOW_ENABLE
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bool "Enable yellow LED"
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help
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Enable yellow status LED.
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if LED_STATUS_YELLOW_ENABLE
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config LED_STATUS_YELLOW
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int "Yellow LED identification"
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help
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Valid enabled LED device number.
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endif # LED_STATUS_YELLOW_ENABLE
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config LED_STATUS_BLUE_ENABLE
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bool "Enable blue LED"
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help
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Enable blue status LED.
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if LED_STATUS_BLUE_ENABLE
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config LED_STATUS_BLUE
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int "Blue LED identification"
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help
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Valid enabled LED device number.
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endif # LED_STATUS_BLUE_ENABLE
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config LED_STATUS_GREEN_ENABLE
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bool "Enable green LED"
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help
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Enable green status LED.
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if LED_STATUS_GREEN_ENABLE
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config LED_STATUS_GREEN
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int "Green LED identification"
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help
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Valid enabled LED device number (0-5).
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endif # LED_STATUS_GREEN_ENABLE
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config LED_STATUS_CMD
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bool "Enable status LED commands"
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endif # LED_STATUS
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endmenu
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