Add device tree overlay support

guowenxue

2023-07-26 e5531e2c0fd376409fd04c28a294edf04d903042

 conf/machine/igkboard-6ull.conf

@@ -12,6 +12,25 @@
# Device tree file generated during kernel compilation
KERNEL_DEVICETREE = "${MACHINE}.dtb"

# Device tree overlay files generated during kernel compilation
KERNEL_DTOVERLAY = " \
    ${MACHINE}/adc.dtbo \
    ${MACHINE}/cam.dtbo \
    ${MACHINE}/can1.dtbo \
    ${MACHINE}/can2.dtbo \
    ${MACHINE}/i2c1.dtbo \
    ${MACHINE}/lcd.dtbo \
    ${MACHINE}/nbiot-4g.dtbo \
    ${MACHINE}/pwm7.dtbo \
    ${MACHINE}/pwm8.dtbo \
    ${MACHINE}/spi1.dtbo \
    ${MACHINE}/uart2.dtbo \
    ${MACHINE}/uart3.dtbo \
    ${MACHINE}/uart4.dtbo \
    ${MACHINE}/uart7.dtbo \
    ${MACHINE}/w1.dtbo \
"

# Uboot comfiguration
UBOOT_CONFIG ??= "sd"
UBOOT_CONFIG[sd] = "${MACHINE}_defconfig,sdcard"
@@ -20,6 +39,7 @@
IMAGE_BOOT_FILES = " \
    ${KERNEL_IMAGETYPE} \
    ${KERNEL_DEVICETREE} \
    overlays/*;overlays/ \
"
# Remove unused optee bcm4339 bcm43455
MACHINE_FEATURES += "wifi bluetooth"