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 21 22# RISC-V SBI console 23device rcons 24 25# pseudo devices 26device clk 27device hwreset 28device phy 29device regulator 30device syscon 31device syscon_power 32device riscv_syscon 33 34# Backlight subsystem 35device backlight 36 37# VirtIO support 38device virtio # Generic VirtIO bus (required) 39device virtio_pci # VirtIO PCI device 40device vtnet # VirtIO Ethernet device 41device virtio_blk # VirtIO Block device 42device virtio_mmio # VirtIO MMIO bus 43device virtio_random # VirtIO Entropy device 44 45# NVM Express (NVMe) support 46device nvme # base NVMe driver 47options NVME_USE_NVD=0 # prefer the cam(4) based nda(4) driver 48device nvd # expose NVMe namespaces as disks, depends on nvme 49 50# NOTE: dtrace introduces CDDL-licensed components into the kernel 51device dtrace # dtrace core 52device dtraceall # include all dtrace modules 53 54# Serial (COM) ports 55device uart_lowrisc # lowRISC UART driver 56device uart_ns8250 # ns8250-type UART driver 57 58# RTC 59device da9063_rtc # Dialog Semiconductor DA9063 RTC 60device goldfish_rtc # QEMU RTC 61 62# Ethernet drivers 63device xae # Xilinx AXI Ethernet MAC 64 65# DMA support 66device xdma # DMA interface 67device axidma # Xilinx AXI DMA Controller 68 69# SPI 70device xilinx_spi # Xilinx AXI Quad-SPI Controller 71 72# Power management controllers 73device da9063_pmic # Dialog Semiconductor DA9063 PMIC 74 75# SiFive device drivers 76device fe310aon 77device fu740_pci_dw 78device sifive_gpio 79device sifive_spi 80files "../sifive/files.sifive" 81 82# Flattened Device Tree 83options FDT 84makeoptions MODULES_EXTRA+="dtb/sifive" 85 86# FreeBSD/riscv didn't exist for these releases 87nooptions COMPAT_FREEBSD4 88nooptions COMPAT_FREEBSD5 89nooptions COMPAT_FREEBSD6 90nooptions COMPAT_FREEBSD7 91nooptions COMPAT_FREEBSD9 92nooptions COMPAT_FREEBSD10 93nooptions COMPAT_FREEBSD11 94 95# riscv doesn't support inb/outb, so disable chipset probing which needs it 96nooptions PPC_PROBE_CHIPSET 97 98# Makes assumptions about bus tags that aren't true on riscv 99nodevice snd_cmi 100 101# Don't yet have hwpmc(4) 102nodevice hwpmc 103nooptions HWPMC_HOOKS 104 105# riscv doesn't yet have atomic_testandset_int and atomic_testandclear_int. 106nodevice ccr 107nodevice cxgbe 108nodevice cxgbev 109