diff options
Diffstat (limited to 'drivers/i2c/Kconfig')
| -rw-r--r-- | drivers/i2c/Kconfig | 26 |
1 files changed, 24 insertions, 2 deletions
diff --git a/drivers/i2c/Kconfig b/drivers/i2c/Kconfig index d6d2b67b8eb..63d03a3cebf 100644 --- a/drivers/i2c/Kconfig +++ b/drivers/i2c/Kconfig @@ -2,7 +2,29 @@ # I2C subsystem configuration # -menu "I2C support" +menuconfig I2C + bool "I2C support" + default y + help + Note: + This is a stand-in for an option to enable I2C support. In fact this + simply enables building of the I2C directory for U-Boot. The actual + I2C feature is enabled by DM_I2C (for driver model) and + the #define CONFIG_SYS_I2C_LEGACY (for the legacy I2C stack). + + So at present there is no need to ever disable this option. + + Eventually it will: + + Enable support for the I2C (Inter-Integrated Circuit) bus in U-Boot. + I2C works with a clock and data line which can be driven by a + one or more masters or slaves. It is a fairly complex bus but is + widely used as it only needs two lines for communication. Speeds of + 400kbps are typical but up to 3.4Mbps is supported by some + hardware. Enable this option to build the drivers in drivers/i2c as + part of a U-Boot build. + +if I2C config DM_I2C bool "Enable Driver Model for I2C drivers" @@ -528,4 +550,4 @@ config SYS_I2C_IHS source "drivers/i2c/muxes/Kconfig" -endmenu +endif |