i2c: muxes: add i2c gpio multiplexer driver

[u-boot] / drivers / i2c / muxes / Kconfig

diff --git a/drivers/i2c/muxes/Kconfig b/drivers/i2c/muxes/Kconfig
index 913093d53dfa415957e77aee0717b719fc878380..156380c1ccc3d85e79e9189608a6b4814da51f47 100644 (file)
--- a/drivers/i2c/muxes/Kconfig
+++ b/drivers/i2c/muxes/Kconfig
@@ -7,6 +7,15 @@ config I2C_MUX
          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
@@ -15,3 +24,22 @@ config I2C_ARB_GPIO_CHALLENGE
          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
+         paritioning I2C bus and connect multiple devices with the same address
+         to the same I2C controller where driver handles proper routing to
+         target i2c device. PCA9544 and PCA9548 are supported.
+
+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.