aboutsummaryrefslogtreecommitdiffstats
path: root/roms/u-boot/drivers/i2c/muxes/Kconfig
diff options
context:
space:
mode:
Diffstat (limited to 'roms/u-boot/drivers/i2c/muxes/Kconfig')
-rw-r--r--roms/u-boot/drivers/i2c/muxes/Kconfig46
1 files changed, 46 insertions, 0 deletions
diff --git a/roms/u-boot/drivers/i2c/muxes/Kconfig b/roms/u-boot/drivers/i2c/muxes/Kconfig
new file mode 100644
index 000000000..39683fc43
--- /dev/null
+++ b/roms/u-boot/drivers/i2c/muxes/Kconfig
@@ -0,0 +1,46 @@
+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.
+
+config I2C_MUX_PCA954x
+ tristate "TI PCA954x I2C Mux/switches"
+ depends on I2C_MUX
+ help
+ If you say yes here you get support for the TI PCA954x I2C mux/switch
+ devices. It is x width I2C multiplexer which enables to partitioning
+ I2C bus and connect multiple devices with the same address to the same
+ I2C controller where driver handles proper routing to target i2c
+ device. Supported chips are PCA9543, PCA9544, PCA9546, PCA9547,
+ PCA9548 and PCA9646.
+
+config I2C_MUX_GPIO
+ tristate "GPIO-based I2C multiplexer"
+ depends on I2C_MUX && DM_GPIO
+ help
+ If you say yes to this option, support will be included for
+ a GPIO based I2C multiplexer. This driver provides access to
+ I2C busses connected through a MUX, which is controlled
+ through GPIO pins.