default or selected kernelversion does not have config value CONFIG_I2C_IXP2000.
Result is shown for kernelversion 6.2.5

IXP2000 GPIO-Based I2C Interface (DEPRECATED)

modulename: i2c-ixp2000.ko

configname: CONFIG_I2C_IXP2000

Linux Kernel Configuration
└─>Device Drivers
└─>I2C support
└─>I2C Hardware Bus support
└─>IXP2000 GPIO-Based I2C Interface (DEPRECATED)
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
Say Y here if you have an Intel IXP2000 (2400, 2800, 2850) based
system and are using GPIO lines for an I2C bus.

This support is also available as a module. If so, the module
will be called i2c-ixp2000.

This driver is deprecated and will be dropped soon. Use i2c-gpio
instead.

source code: