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# 8 9cpu RISCV 10 11makeoptions DEBUG=-g # Build kernel with gdb(1) debug symbols 12makeoptions WITH_CTF=1 # Run ctfconvert(1) for DTrace support 13 14options PRINTF_BUFR_SIZE=128 # Prevent printf output being interspersed. 15options KDTRACE_FRAME # Ensure frames are compiled in 16options KDTRACE_HOOKS # Kernel DTrace hooks 17options DDB_CTF # Kernel ELF linker loads CTF data 18options RACCT_DEFAULT_TO_DISABLED # Set kern.racct.enable=0 by default 19 20# RISC-V SBI console 21device rcons 22 23# pseudo devices 24device clk 25device hwreset 26device phy 27device regulator 28device syscon 29device syscon_power 30device riscv_syscon 31 32# Backlight subsystem 33device backlight 34 35# VirtIO support 36device virtio # Generic VirtIO bus (required) 37device virtio_pci # VirtIO PCI device 38device vtnet # VirtIO Ethernet device 39device virtio_blk # VirtIO Block device 40device virtio_mmio # VirtIO MMIO bus 41device virtio_random # VirtIO Entropy device 42 43# MMC/SD/SDIO Card slot support 44device dwmmc 45 46# NOTE: dtrace introduces CDDL-licensed components into the kernel 47device dtrace # dtrace core 48device dtraceall # include all dtrace modules 49 50# Serial (COM) ports 51device uart_lowrisc # lowRISC UART driver 52device uart_ns8250 # ns8250-type UART driver 53 54# RTC 55device da9063_rtc # Dialog Semiconductor DA9063 RTC 56device goldfish_rtc # QEMU RTC 57 58# Ethernet drivers 59device dwc # Synopsys Designware GMAC Ethernet 60device xae # Xilinx AXI Ethernet MAC 61 62# DMA support 63device xdma # DMA interface 64device axidma # Xilinx AXI DMA Controller 65 66# SPI 67device xilinx_spi # Xilinx AXI Quad-SPI Controller 68 69# Power management controllers 70device da9063_pmic # Dialog Semiconductor DA9063 PMIC 71 72# SiFive device drivers 73device fe310aon 74device fu740_pci_dw 75device sifive_gpio 76device sifive_spi 77files "../sifive/files.sifive" 78 79# Flattened Device Tree 80options FDT 81makeoptions MODULES_EXTRA+="dtb/sifive" 82 83# FreeBSD/riscv didn't exist for these releases 84nooptions COMPAT_FREEBSD4 85nooptions COMPAT_FREEBSD5 86nooptions COMPAT_FREEBSD6 87nooptions COMPAT_FREEBSD7 88nooptions COMPAT_FREEBSD9 89nooptions COMPAT_FREEBSD10 90nooptions COMPAT_FREEBSD11 91 92# riscv doesn't support inb/outb, so disable chipset probing which needs it 93nooptions PPC_PROBE_CHIPSET 94 95# Makes assumptions about bus tags that aren't true on riscv 96nodevice snd_cmi 97 98# Don't yet have hwpmc(4) 99nodevice hwpmc 100nooptions HWPMC_HOOKS 101 102# riscv doesn't yet have atomic_testandset_int and atomic_testandclear_int. 103nodevice ccr 104nodevice cxgbe 105nodevice cxgbev 106