xref: /freebsd/sys/arm64/conf/NOTES (revision 2008043f386721d58158e37e0d7e50df8095942d)
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
9#
10# We want LINT to cover profiling as well.
11# Except it's broken.
12#profile         2
13
14#
15# Enable the kernel DTrace hooks which are required to load the DTrace
16# kernel modules.
17#
18options 	KDTRACE_HOOKS
19
20#
21# Most of the following is copied from ARM64 GENERIC.
22cpu		ARM64
23
24makeoptions	DEBUG=-g		# Build kernel with gdb(1) debug symbols
25makeoptions	WITH_CTF=1		# Run ctfconvert(1) for DTrace support
26
27options 	PRINTF_BUFR_SIZE=128	# Prevent printf output being interspersed.
28options 	KDTRACE_FRAME		# Ensure frames are compiled in
29options 	VFP			# Floating-point support
30options 	RACCT_DEFAULT_TO_DISABLED # Set kern.racct.enable=0 by default
31
32# SoC support
33options 	SOC_ALLWINNER_A64
34options 	SOC_ALLWINNER_H5
35options 	SOC_ALLWINNER_H6
36options 	SOC_BRCM_BCM2837
37options 	SOC_BRCM_BCM2838
38options 	SOC_BRCM_NS2
39options 	SOC_CAVM_THUNDERX
40options 	SOC_FREESCALE_IMX8
41options 	SOC_HISI_HI6220
42options 	SOC_INTEL_STRATIX10
43options 	SOC_MARVELL_8K
44options 	SOC_NVIDIA_TEGRA210
45options 	SOC_NXP_LS
46options 	SOC_ROCKCHIP_RK3328
47options 	SOC_ROCKCHIP_RK3399
48options 	SOC_XILINX_ZYNQ
49
50# Timer drivers
51device		a10_timer
52
53# Annapurna Alpine drivers
54device		al_ccu			# Alpine Cache Coherency Unit
55device		al_nb_service		# Alpine North Bridge Service
56device		al_iofic		# I/O Fabric Interrupt Controller
57device		al_serdes		# Serializer/Deserializer
58device		al_udma			# Universal DMA
59
60# Qualcomm Snapdragon drivers
61device		qcom_gcc		# Global Clock Controller
62
63# VirtIO support
64device		virtio
65device		virtio_pci
66device		virtio_mmio
67device		virtio_blk
68device		vtnet
69
70# Google Virtual NIC
71device		gve		# Google Virtual NIC (gVNIC) driver
72
73# Microsoft Hyper-V
74device		hyperv
75
76# CPU frequency control
77device		cpufreq
78
79# Accelerated software crypto
80device		armv8crypto		# ARMv8 OpenCrypto module
81device		ossl			# OpenSSL OpenCrypto module
82
83# Bus drivers
84device		al_pci		# Annapurna Alpine PCI-E
85options 	PCI_HP			# PCI-Express native HotPlug
86options 	PCI_IOV		# PCI SR-IOV support
87
88# Ethernet NICs
89device		mdio
90device		awg		# Allwinner EMAC Gigabit Ethernet
91device		axa		# AMD Opteron A1100 integrated NIC
92device		neta		# Marvell Armada 370/38x/XP/3700 NIC
93device  	smc		# SMSC LAN91C111
94device		vnic		# Cavium ThunderX NIC
95device		al_eth		# Annapurna Alpine Ethernet NIC
96device		dwc_rk		# Rockchip Designware
97device		dwc_socfpga	# Altera SOCFPGA Ethernet MAC
98device		ice		# Intel 800 Series Physical Function
99device		ice_ddp		# Intel 800 Series DDP Package
100
101# Etherswitch devices
102device		e6000sw		# Marvell mv88e6085 based switches
103
104# NVM Express (NVMe) support
105device		nvme		# base NVMe driver
106options 	NVME_USE_NVD=0	# prefer the cam(4) based nda(4) driver
107device		nvd		# expose NVMe namespaces as disks, depends on nvme
108
109# MMC/SD/SDIO Card slot support
110device		sdhci_xenon		# Marvell Xenon SD/MMC controller
111device		aw_mmc			# Allwinner SD/MMC controller
112device		dwmmc
113device		dwmmc_altera
114device		rk_emmcphy
115
116# Serial (COM) ports
117device		uart_msm	# Qualcomm MSM UART driver
118device		uart_mu		# RPI3 aux port
119device		uart_mvebu	# Armada 3700 UART driver
120device		uart_ns8250	# ns8250-type UART driver
121device		uart_snps
122device		pl011
123
124# USB support
125device		aw_usbphy		# Allwinner USB PHY
126device		dwcotg			# DWC OTG controller
127device		ehci_mv			# Marvell EHCI USB interface
128
129# USB ethernet support
130device		muge
131device		smsc
132
133# Sound support
134device a10_codec
135
136# DMA controller
137device		a31_dmac
138
139# GPIO / PINCTRL
140device		a37x0_gpio	# Marvell Armada 37x0 GPIO controller
141device		aw_gpio		# Allwinner GPIO controller
142device		fdt_pinctrl
143device		mv_gpio		# Marvell GPIO controller
144device		mvebu_pinctrl	# Marvell Pinmux Controller
145device		rk_gpio		# RockChip GPIO Controller
146device		rk_pinctrl	# RockChip Pinmux Controller
147
148# I2C
149device		aw_rsb		# Allwinner Reduced Serial Bus
150device		bcm2835_bsc	# Broadcom BCM283x I2C bus
151device		twsi		# Allwinner I2C controller
152device		rk_i2c		# RockChip I2C controller
153
154# Clock and reset controllers
155device		aw_ccu		# Allwinner clock controller
156
157# Interrupt controllers
158device		aw_nmi		# Allwinner NMI support
159device		mv_cp110_icu	# Marvell CP110 ICU
160device		mv_ap806_gicp	# Marvell AP806 GICP
161
162# Real-time clock support
163device		aw_rtc		# Allwinner Real-time Clock
164device		mv_rtc		# Marvell Real-time Clock
165
166# Watchdog controllers
167device		aw_wdog		# Allwinner Watchdog
168
169# Power management controllers
170device		axp81x		# X-Powers AXP81x PMIC
171device		rk805		# RockChip RK805 PMIC
172
173# EFUSE
174device		aw_sid		# Allwinner Secure ID EFUSE
175
176# Thermal sensors
177device		aw_thermal	# Allwinner Thermal Sensor Controller
178device		mv_thermal	# Marvell Thermal Sensor Controller
179
180# SPI
181device		bcm2835_spi	# Broadcom BCM283x SPI bus
182
183# PWM
184device		pwm
185device		aw_pwm
186
187device		vt_efifb
188device		vt_simplefb
189
190# EVDEV support
191options 	EVDEV_SUPPORT		# evdev support in legacy drivers
192device		aw_cir
193
194# Pseudo devices.
195options 	EFIRT		# EFI Runtime Services
196device		clk
197device		phy
198device		hwreset
199device		nvmem
200device		regulator
201device		syscon
202device		aw_syscon
203
204# Backlight subsystem
205device		backlight
206
207# Misc devices.
208device		pl330		# ARM PL330 dma controller
209device		xdma		# xDMA framework for SoC on-chip dma controllers
210
211# Chip-specific errata
212options 	THUNDERX_PASS_1_1_ERRATA
213
214options 	FDT
215device		acpi
216
217# DTBs
218makeoptions	MODULES_EXTRA="dtb/allwinner dtb/rockchip dtb/rpi"
219
220# Add CAMDEBUG stuff
221options 	CAMDEBUG
222options 	CAM_DEBUG_FLAGS=(CAM_DEBUG_INFO|CAM_DEBUG_PROBE|CAM_DEBUG_PERIPH)
223
224# bring in camified MMC too
225options 	MMCCAM
226
227# arm64 doesn't support inb/outb, so disable chipset probing which needs it
228nooptions 	PPC_PROBE_CHIPSET
229
230# These cause weird issues, not sure why
231nooptions 	DEBUG
232
233# Makes assumptions about bus tags that aren't true on arm64
234nodevice	snd_cmi
235
236# arm64 didn't exist for these releases, so doesn't have the required compat
237# support. Just disable them because they are meaningless.
238nooptions 	COMPAT_FREEBSD4
239nooptions 	COMPAT_FREEBSD5
240nooptions 	COMPAT_FREEBSD6
241nooptions 	COMPAT_FREEBSD7
242nooptions 	COMPAT_FREEBSD9
243nooptions 	COMPAT_FREEBSD10
244
245# arm64 supports 32-bit FreeBSD/arm binaries (armv[67] ABIs)
246options 	COMPAT_FREEBSD32	# Compatible with FreeBSD/arm
247
248#####################################################################
249# ZFS support
250
251options 	ZFS
252
253#
254# HID-over-I2C support
255#
256device		iichid		# HID-over-I2C support
257options 	IICHID_DEBUG	# Enable HID-over-I2C debug messages
258options 	IICHID_SAMPLING	# Workaround missing GPIO INTR support
259