xref: /openbmc/u-boot/drivers/i2c/muxes/Kconfig (revision 4bb656e9)
1config I2C_MUX
2	bool "Support I2C multiplexers"
3	depends on DM_I2C
4	help
5	  This enables I2C buses to be multiplexed, so that you can select
6	  one of several buses using some sort of control mechanism. The
7	  bus select is handled automatically when that bus is accessed,
8	  using a suitable I2C MUX driver.
9
10config SPL_I2C_MUX
11	bool "Support I2C multiplexers on SPL"
12	depends on I2C_MUX
13	help
14	  This enables I2C buses to be multiplexed, so that you can select
15	  one of several buses using some sort of control mechanism. The
16	  bus select is handled automatically when that bus is accessed,
17	  using a suitable I2C MUX driver.
18
19config I2C_ARB_GPIO_CHALLENGE
20	bool "GPIO-based I2C arbitration"
21	depends on I2C_MUX
22	help
23	  If you say yes to this option, support will be included for an
24	  I2C multimaster arbitration scheme using GPIOs and a challenge &
25	  response mechanism where masters have to claim the bus by asserting
26	  a GPIO.
27