gentoo-overlay/sys-boot/raspberrypi-firmware/files/raspberrypi-firmware-0_p20130711-config.txt

#from archlinux arm sdcard image
# uncomment if you get no picture on HDMI for a default "safe" mode
#hdmi_safe=1

# uncomment this if your display has a black border of unused pixels visible
# and your display can output without overscan
#disable_overscan=1

# uncomment the following to adjust overscan. Use positive numbers if console
# goes off screen, and negative if there is too much border
#overscan_left=16
#overscan_right=16
#overscan_top=16
#overscan_bottom=16

# uncomment to force a console size. By default it will be display's size minus
# overscan.
#framebuffer_width=1280
#framebuffer_height=720

# uncomment if hdmi display is not detected and composite is being output
#hdmi_force_hotplug=1

# uncomment to force a specific HDMI mode (this will force VGA)
#hdmi_group=1
#hdmi_mode=1

# uncomment to force a HDMI mode rather than DVI. This can make audio work in
# DMT (computer monitor) modes
#hdmi_drive=2

# uncomment to increase signal to HDMI, if you have interference, blanking, or
# no display
#config_hdmi_boost=4

# uncomment for composite PAL
#sdtv_mode=2

#uncomment to overclock the arm. 700 MHz is the default.
#arm_freq=800

# for more options see http://elinux.org/RPi_config.txt

## Some over clocking settings, govenor already set to ondemand

##None
#arm_freq=700
#core_freq=250
#sdram_freq=400
#over_voltage=0

##Modest
#arm_freq=800
#core_freq=300
#sdram_freq=400
#over_voltage=0

##Medium
#arm_freq=900
#core_freq=333
#sdram_freq=450
#over_voltage=2

##High
#arm_freq=950
#core_freq=450
#sdram_freq=450
#over_voltage=6

##Turbo
#arm_freq=1000
#core_freq=500
#sdram_freq=500
#over_voltage=6

gpu_mem_512=316
gpu_mem_256=128
cma_lwm=16
cma_hwm=32
cma_offline_start=16