1==================================== 2Xilinx Zynq MPSoC EEMI Documentation 3==================================== 4 5Xilinx Zynq MPSoC Firmware Interface 6------------------------------------- 7The zynqmp-firmware node describes the interface to platform firmware. 8ZynqMP has an interface to communicate with secure firmware. Firmware 9driver provides an interface to firmware APIs. Interface APIs can be 10used by any driver to communicate with PMC(Platform Management Controller). 11 12Embedded Energy Management Interface (EEMI) 13---------------------------------------------- 14The embedded energy management interface is used to allow software 15components running across different processing clusters on a chip or 16device to communicate with a power management controller (PMC) on a 17device to issue or respond to power management requests. 18 19Any driver who wants to communicate with PMC using EEMI APIs use the 20functions provided for each function. 21 22IOCTL 23------ 24IOCTL API is for device control and configuration. It is not a system 25IOCTL but it is an EEMI API. This API can be used by master to control 26any device specific configuration. IOCTL definitions can be platform 27specific. This API also manage shared device configuration. 28 29The following IOCTL IDs are valid for device control: 30- IOCTL_SET_PLL_FRAC_MODE 8 31- IOCTL_GET_PLL_FRAC_MODE 9 32- IOCTL_SET_PLL_FRAC_DATA 10 33- IOCTL_GET_PLL_FRAC_DATA 11 34 35Refer EEMI API guide [0] for IOCTL specific parameters and other EEMI APIs. 36 37References 38---------- 39[0] Embedded Energy Management Interface (EEMI) API guide: 40 https://www.xilinx.com/support/documentation/user_guides/ug1200-eemi-api.pdf 41