IPQ806x Global Clock Controller

modulename: gcc-ipq806x.ko

configname: CONFIG_IPQ_GCC_806X

Linux Kernel Configuration
└─>Device Drivers
└─>Common Clock Framework
└─>IPQ806x Global Clock Controller
In linux kernel since version 3.10 (release Date: 2013-06-30)  
Support for the global clock controller on ipq806x devices.
Say Y if you want to use peripheral devices such as UART, SPI,
i2c, USB, SD/eMMC, etc.

source code: