#
# NOTES -- Lines that can be cut/pasted into kernel and hints configs.
#
# This file contains machine dependent kernel configuration notes.  For
# machine independent notes, look in /sys/conf/NOTES.
#
# $FreeBSD$
#

cpu		RISCV

makeoptions	DEBUG=-g		# Build kernel with gdb(1) debug symbols
makeoptions	WITH_CTF=1		# Run ctfconvert(1) for DTrace support

options 	PRINTF_BUFR_SIZE=128	# Prevent printf output being interspersed.
options 	KDTRACE_FRAME		# Ensure frames are compiled in
options 	KDTRACE_HOOKS		# Kernel DTrace hooks
options 	DDB_CTF			# Kernel ELF linker loads CTF data
options 	FPE			# Floating-point extension support
options 	RACCT_DEFAULT_TO_DISABLED # Set kern.racct.enable=0 by default
options 	INTRNG			# Include INTRNG framework

# RISC-V SBI console
device		rcons

# EXT_RESOURCES pseudo devices
options 	EXT_RESOURCES
device		clk
device		phy
device		regulator
device		syscon
device		syscon_power
device		riscv_syscon

# Backlight subsystem
device		backlight

# VirtIO support
device		virtio			# Generic VirtIO bus (required)
device		virtio_pci		# VirtIO PCI device
device		vtnet			# VirtIO Ethernet device
device		virtio_blk		# VirtIO Block device
device		virtio_mmio		# VirtIO MMIO bus
device		virtio_random		# VirtIO Entropy device

# NOTE: dtrace introduces CDDL-licensed components into the kernel
device		dtrace			# dtrace core
device		dtraceall		# include all dtrace modules

# Serial (COM) ports
device		uart_lowrisc	# lowRISC UART driver
device		uart_ns8250	# ns8250-type UART driver

# RTC
device		goldfish_rtc	# QEMU RTC

# Ethernet drivers
device		xae		# Xilinx AXI Ethernet MAC

# DMA support
device		xdma		# DMA interface
device		axidma		# Xilinx AXI DMA Controller

# SPI
device		xilinx_spi	# Xilinx AXI Quad-SPI Controller

# SOC-specific
device		fe310aon
device		fu540spi
files		"../sifive/files.sifive"

# Flattened Device Tree
options 	FDT
makeoptions	MODULES_EXTRA+="dtb/sifive"

# FreeBSD/riscv didn't exist for these releases
nooptions 	COMPAT_FREEBSD4
nooptions 	COMPAT_FREEBSD5
nooptions 	COMPAT_FREEBSD6
nooptions 	COMPAT_FREEBSD7
nooptions 	COMPAT_FREEBSD9
nooptions 	COMPAT_FREEBSD10
nooptions 	COMPAT_FREEBSD11

# No support for remote GDB
nooptions 	GDB

# riscv doesn't support inb/outb, so disable chipset probing which needs it
nooptions 	PPC_PROBE_CHIPSET

# Makes assumptions about bus tags that aren't true on riscv
nodevice	snd_cmi

# Don't yet have hwpmc(4)
nodevice	hwpmc
nooptions 	HWPMC_HOOKS