| 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475 |
- config DM_I2C
- bool "Enable Driver Model for I2C drivers"
- depends on DM
- help
- Enable driver model for I2C. The I2C uclass interface: probe, read,
- write and speed, is implemented with the bus drivers operations,
- which provide methods for bus setting and data transfer. Each chip
- device (bus child) info is kept as parent platdata. The interface
- is defined in include/i2c.h. When i2c bus driver supports the i2c
- uclass, but the device drivers not, then DM_I2C_COMPAT config can
- be used as compatibility layer.
- config DM_I2C_COMPAT
- bool "Enable I2C compatibility layer"
- depends on DM
- help
- Enable old-style I2C functions for compatibility with existing code.
- This option can be enabled as a temporary measure to avoid needing
- to convert all code for a board in a single commit. It should not
- be enabled for any board in an official release.
- config DM_I2C_GPIO
- bool "Enable Driver Model for software emulated I2C bus driver"
- depends on DM_I2C && DM_GPIO
- help
- Enable the i2c bus driver emulation by using the GPIOs. The bus GPIO
- configuration is given by the device tree. Kernel-style device tree
- bindings are supported.
- Binding info: doc/device-tree-bindings/i2c/i2c-gpio.txt
- config SYS_I2C_SANDBOX
- bool "Sandbox I2C driver"
- depends on SANDBOX && DM_I2C
- help
- Enable I2C support for sandbox. This is an emulation of a real I2C
- bus. Devices can be attached to the bus using the device tree
- which specifies the driver to use. As an example, see this device
- tree fragment from sandbox.dts. It shows that the I2C bus has a
- single EEPROM at address 0x2c (7-bit address) which is emulated by
- the driver for "sandbox,i2c-eeprom", which is in
- drivers/misc/i2c_eeprom_emul.c.
- i2c@0 {
- #address-cells = <1>;
- #size-cells = <0>;
- reg = <0>;
- compatible = "sandbox,i2c";
- clock-frequency = <400000>;
- eeprom@2c {
- reg = <0x2c>;
- compatible = "i2c-eeprom";
- emul {
- compatible = "sandbox,i2c-eeprom";
- sandbox,filename = "i2c.bin";
- sandbox,size = <128>;
- };
- };
- };
- config SYS_I2C_UNIPHIER
- bool "UniPhier I2C driver"
- depends on ARCH_UNIPHIER && DM_I2C
- default y
- help
- Support for UniPhier I2C controller driver. This I2C controller
- is used on PH1-LD4, PH1-sLD8 or older UniPhier SoCs.
- config SYS_I2C_UNIPHIER_F
- bool "UniPhier FIFO-builtin I2C driver"
- depends on ARCH_UNIPHIER && DM_I2C
- default y
- help
- Support for UniPhier FIFO-builtin I2C controller driver.
- This I2C controller is used on PH1-Pro4 or newer UniPhier SoCs.
|
