OpenVoiceOS/buildroot-external/board/raspberrypi/config_4_64bit.txt

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# Please note that this is only a sample, we recommend you to change it to fit
# your needs.
# You should override this file using a post-build script.
# See http://buildroot.org/manual.html#rootfs-custom
# and http://elinux.org/RPiconfig for a description of config.txt syntax
# We always use the same names, the real used variant is selected by
# BR2_PACKAGE_RPI_FIRMWARE_{DEFAULT,X,CD} choice
start_file=start4x.elf
fixup_file=fixup4x.dat
kernel=Image
# To use an external initramfs file
# initramfs rootfs.cpio.gz
# Disable overscan assuming the display supports displaying the full resolution
# If the text shown on the screen disappears off the edge, comment this out
# disable_overscan=1
# Automatically load overlays for detected DSI displays
display_auto_detect=1
# Enable DRM VC4 V3D driver and setup the mode
dtoverlay=vc4-fkms-v3d
# dtoverlay=vc4-kms-v3d-pi4
hdmi_drive=2
hdmi_group=2
hdmi_mode=14
max_framebuffers=2
# uncomment if you get no picture on HDMI for a default "safe" mode
# hdmi_safe=1
# How much memory in MB to assign to the GPU on Pi models having
# 256, 512 or 1024 MB total memory
gpu_mem=256
gpu_mem_256=128
gpu_mem_512=128
gpu_mem_1024=128
# fixes rpi (3B, 3B+, 3A+, 4B and Zero W) ttyAMA0 serial console
dtoverlay=miniuart-bt
# enable autoprobing of Bluetooth driver without need of hciattach/btattach
dtoverlay=krnbt=on
# Enable the onboard soundcard
dtparam=audio=on
# Enable camera driver
# dtoverlay=imx219
dtoverlay=ov5647
# camera_auto_detect=1
# Disable rainbow color splash
disable_splash=1
# Enable some optional hardware interfaces
dtparam=i2c_arm=on
dtparam=i2c_arm_baudrate=100000
dtoverlay=i2s-mmap
dtparam=i2s=on
dtparam=spi=on
# Disable GPIO IRQ
dtoverlay=gpio-no-irq
# enable 64bits support
arm_64bit=1