/usr/src/linux-headers-5.15.0-181/arch/mips/bcm47xx
Edit: /usr/src/linux-headers-5.15.0-181/arch/mips/bcm47xx/Makefile (222B)
# SPDX-License-Identifier: GPL-2.0-only
#
# Makefile for the BCM47XX specific kernel interface routines
# under Linux.
#
obj-y += irq.o prom.o serial.o setup.o time.o
obj-y += board.o buttons.o leds.o workarounds.o