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config I2C_MUX
bool "Support I2C multiplexers"
depends on DM_I2C
help
This enables I2C buses to be multiplexed, so that you can select
one of several buses using some sort of control mechanism. The
bus select is handled automatically when that bus is accessed,
using a suitable I2C MUX driver.
config SPL_I2C_MUX
bool "Support I2C multiplexers on SPL"
depends on I2C_MUX
help
This enables I2C buses to be multiplexed, so that you can select
one of several buses using some sort of control mechanism. The
bus select is handled automatically when that bus is accessed,
using a suitable I2C MUX driver.
config I2C_ARB_GPIO_CHALLENGE
bool "GPIO-based I2C arbitration"
depends on I2C_MUX
help
If you say yes to this option, support will be included for an
I2C multimaster arbitration scheme using GPIOs and a challenge &
response mechanism where masters have to claim the bus by asserting
a GPIO.
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