# See https://www.raspberrypi.com/documentation/computers/configuration.html
# Reduce GPU memory to give more to CPU.
gpu_mem=32
# Enable maximum compatibility on both HDMI ports;
# only the one closest to the power/USB-C port will work in practice.
hdmi_safe:0=1
hdmi_safe:1=1
# Load U-Boot.
kernel=u-boot.bin
# Forces the kernel loading system to assume a 64-bit kernel.
arm_64bit=1
# Run as fast as firmware / board allows.
arm_boost=1
# Enable the primary/console UART (globally).
enable_uart=1
# Disable UART on Pi5 to avoid U-Boot compatibility issue.
# The debug UART (ttyAMA10) is always active regardless of this setting.
[pi5]
enable_uart=0
# Enable PCIe Gen 3 for NVMe (~800 MB/s vs ~400 MB/s Gen 2)
# CM5 DTB lacks the pciex1 alias needed for dtparam=pciex1_gen=3,
# so we use a custom overlay that targets pcie@1000110000 directly.
dtoverlay=pcie-gen3
[all]
# Disable Bluetooth.
dtoverlay=disable-bt
# Disable Wireless Lan.
dtoverlay=disable-wifi
# CM5 Overclock — 2.6GHz stable on Compute Blade with heatsink
arm_freq=2600
over_voltage_delta=50000
arm_boost=1