For debug cards on TI reference boards.
Say Y to enable AVS(Adaptive Voltage Scaling) support on OMAP containing the version 1 or version 2 of the SmartReflex IP. V1 is the 65nm version used in OMAP3430. V2 is the update for the 45nm version of the IP used in OMAP3630 and OMAP4430 Please note, that by default SmartReflex is only initialized and not enabled. To enable the automatic voltage compensation for vdd mpu and vdd core from user space, user must write 1 to /debug/smartreflex/sr_<X>/autocomp, where X is mpu_iva or core for OMAP3. Optionally autocompensation can be enabled in the kernel by default during system init via the enable_on_init flag which an be passed as platform data to the smartreflex driver.
Say Y to enable Class 3 implementation of Smartreflex Class 3 implementation of Smartreflex employs continuous hardware voltage calibration.
Say Y if you want to reset unused clocks during boot. This option saves power, but assumes all drivers are using the clock framework. Broken drivers that do not yet use clock framework may not work with this option. If you are booting from another operating system, you probably do not want this option enabled until your device drivers work properly.
Select this option if you want to use the OMAP mpu timer. This timer provides more intra-tick resolution than the 32KHz timer, but consumes more power.
Select this option if you want to enable the OMAP 32KHz timer. This timer saves power compared to the OMAP_MPU_TIMER, and has support for no tick during idle. The 32KHz timer provides less intra-tick resolution than OMAP_MPU_TIMER. The 32KHz timer is currently only available for OMAP16XX, 24XX, 34XX, OMAP4/5 and DRA7XX. On OMAP2PLUS this value is only used for CONFIG_HZ and CLOCK_TICK_RATE compile time calculation. The actual timer selection is done in the board file through the (DT_)MACHINE_START structure.
Without this option, L2 Auxiliary control register contents are lost during off-mode entry on HS/EMU devices. This feature requires support from PPA / boot-loader in HS/EMU devices, which currently does not exist by default.
PPA routine service ID for setting L2 auxiliary control register.
Select this option if you want to have your system wake up to data on the serial RX line. This allows you to wake the system from serial console.