1# 2# NOTES -- Lines that can be cut/pasted into kernel and hints configs. 3# 4# This file contains machine dependent kernel configuration notes. For 5# machine independent notes, look in /sys/conf/NOTES. 6# 7# $FreeBSD$ 8# 9 10cpu RISCV 11 12makeoptions DEBUG=-g # Build kernel with gdb(1) debug symbols 13makeoptions WITH_CTF=1 # Run ctfconvert(1) for DTrace support 14 15options PRINTF_BUFR_SIZE=128 # Prevent printf output being interspersed. 16options KDTRACE_FRAME # Ensure frames are compiled in 17options KDTRACE_HOOKS # Kernel DTrace hooks 18options DDB_CTF # Kernel ELF linker loads CTF data 19options FPE # Floating-point extension support 20options RACCT_DEFAULT_TO_DISABLED # Set kern.racct.enable=0 by default 21options INTRNG # Include INTRNG framework 22 23# RISC-V SBI console 24device rcons 25 26# EXT_RESOURCES pseudo devices 27options EXT_RESOURCES 28device clk 29device hwreset 30device phy 31device regulator 32device syscon 33device syscon_power 34device riscv_syscon 35 36# Backlight subsystem 37device backlight 38 39# VirtIO support 40device virtio # Generic VirtIO bus (required) 41device virtio_pci # VirtIO PCI device 42device vtnet # VirtIO Ethernet device 43device virtio_blk # VirtIO Block device 44device virtio_mmio # VirtIO MMIO bus 45device virtio_random # VirtIO Entropy device 46 47# NOTE: dtrace introduces CDDL-licensed components into the kernel 48device dtrace # dtrace core 49device dtraceall # include all dtrace modules 50 51# Serial (COM) ports 52device uart_lowrisc # lowRISC UART driver 53device uart_ns8250 # ns8250-type UART driver 54 55# RTC 56device goldfish_rtc # QEMU RTC 57 58# Ethernet drivers 59device xae # Xilinx AXI Ethernet MAC 60 61# DMA support 62device xdma # DMA interface 63device axidma # Xilinx AXI DMA Controller 64 65# SPI 66device xilinx_spi # Xilinx AXI Quad-SPI Controller 67 68# SOC-specific 69device fe310aon 70device sifive_spi 71files "../sifive/files.sifive" 72 73# Flattened Device Tree 74options FDT 75makeoptions MODULES_EXTRA+="dtb/sifive" 76 77# FreeBSD/riscv didn't exist for these releases 78nooptions COMPAT_FREEBSD4 79nooptions COMPAT_FREEBSD5 80nooptions COMPAT_FREEBSD6 81nooptions COMPAT_FREEBSD7 82nooptions COMPAT_FREEBSD9 83nooptions COMPAT_FREEBSD10 84nooptions COMPAT_FREEBSD11 85 86# No support for remote GDB 87nooptions GDB 88 89# riscv doesn't support inb/outb, so disable chipset probing which needs it 90nooptions PPC_PROBE_CHIPSET 91 92# Makes assumptions about bus tags that aren't true on riscv 93nodevice snd_cmi 94 95# Don't yet have hwpmc(4) 96nodevice hwpmc 97nooptions HWPMC_HOOKS 98