xref: /freebsd/sys/arm64/conf/NOTES (revision 36a2f5b81743b45c2cb7ec933e306eff20477dcf)
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
10#
11# We want LINT to cover profiling as well.
12# Except it's broken.
13#profile         2
14
15#
16# Enable the kernel DTrace hooks which are required to load the DTrace
17# kernel modules.
18#
19options 	KDTRACE_HOOKS
20
21#
22# Most of the following is copied from ARM64 GENERIC.
23cpu		ARM64
24
25makeoptions	DEBUG=-g		# Build kernel with gdb(1) debug symbols
26makeoptions	WITH_CTF=1		# Run ctfconvert(1) for DTrace support
27
28options 	PRINTF_BUFR_SIZE=128	# Prevent printf output being interspersed.
29options 	KDTRACE_FRAME		# Ensure frames are compiled in
30options 	VFP			# Floating-point support
31options 	RACCT_DEFAULT_TO_DISABLED # Set kern.racct.enable=0 by default
32options 	INTRNG
33
34# SoC support
35options 	SOC_ALLWINNER_A64
36options 	SOC_ALLWINNER_H5
37options 	SOC_CAVM_THUNDERX
38options 	SOC_HISI_HI6220
39options 	SOC_BRCM_BCM2837
40options 	SOC_BRCM_BCM2838
41options 	SOC_MARVELL_8K
42options 	SOC_ROCKCHIP_RK3328
43options 	SOC_ROCKCHIP_RK3399
44options 	SOC_XILINX_ZYNQ
45
46# Timer drivers
47device		a10_timer
48
49# Annapurna Alpine drivers
50device		al_ccu			# Alpine Cache Coherency Unit
51device		al_nb_service		# Alpine North Bridge Service
52device		al_iofic		# I/O Fabric Interrupt Controller
53device		al_serdes		# Serializer/Deserializer
54device		al_udma			# Universal DMA
55
56# Qualcomm Snapdragon drivers
57device		qcom_gcc		# Global Clock Controller
58
59# VirtIO support
60device		virtio
61device		virtio_pci
62device		virtio_mmio
63device		virtio_blk
64device		vtnet
65
66# CPU frequency control
67device		cpufreq
68
69# Bus drivers
70device		al_pci		# Annapurna Alpine PCI-E
71options 	PCI_HP			# PCI-Express native HotPlug
72options 	PCI_IOV		# PCI SR-IOV support
73
74# Ethernet NICs
75device		mdio
76device		awg		# Allwinner EMAC Gigabit Ethernet
77device		axa		# AMD Opteron A1100 integrated NIC
78device		neta		# Marvell Armada 370/38x/XP/3700 NIC
79device  	smc		# SMSC LAN91C111
80device		vnic		# Cavium ThunderX NIC
81device		al_eth		# Annapurna Alpine Ethernet NIC
82device		dwc_rk		# Rockchip Designware
83device		dwc_socfpga	# Altera SOCFPGA Ethernet MAC
84device		ice		# Intel 800 Series Physical Function
85device		ice_ddp		# Intel 800 Series DDP Package
86
87# Etherswitch devices
88device		e6000sw		# Marvell mv88e6085 based switches
89
90# NVM Express (NVMe) support
91device		nvme		# base NVMe driver
92options 	NVME_USE_NVD=0	# prefer the cam(4) based nda(4) driver
93device		nvd		# expose NVMe namespaces as disks, depends on nvme
94
95# MMC/SD/SDIO Card slot support
96device		sdhci_xenon		# Marvell Xenon SD/MMC controller
97device		aw_mmc			# Allwinner SD/MMC controller
98device		dwmmc
99device		dwmmc_altera
100device		rk_emmcphy
101
102# Serial (COM) ports
103device		uart_msm	# Qualcomm MSM UART driver
104device		uart_mu		# RPI3 aux port
105device		uart_mvebu	# Armada 3700 UART driver
106device		uart_ns8250	# ns8250-type UART driver
107device		uart_snps
108device		pl011
109
110# USB support
111device		aw_usbphy		# Allwinner USB PHY
112device		dwcotg			# DWC OTG controller
113device		ehci_mv			# Marvell EHCI USB interface
114
115# USB ethernet support
116device		muge
117device		smsc
118
119# Sound support
120device a10_codec
121
122# DMA controller
123device		a31_dmac
124
125# GPIO / PINCTRL
126device		a37x0_gpio	# Marvell Armada 37x0 GPIO controller
127device		aw_gpio		# Allwinner GPIO controller
128device		fdt_pinctrl
129device		mv_gpio		# Marvell GPIO controller
130device		mvebu_pinctrl	# Marvell Pinmux Controller
131device		rk_gpio		# RockChip GPIO Controller
132device		rk_pinctrl	# RockChip Pinmux Controller
133
134# I2C
135device		aw_rsb		# Allwinner Reduced Serial Bus
136device		bcm2835_bsc	# Broadcom BCM283x I2C bus
137device		twsi		# Allwinner I2C controller
138device		rk_i2c		# RockChip I2C controller
139
140# Clock and reset controllers
141device		aw_ccu		# Allwinner clock controller
142
143# Interrupt controllers
144device		aw_nmi		# Allwinner NMI support
145device		mv_cp110_icu	# Marvell CP110 ICU
146device		mv_ap806_gicp	# Marvell AP806 GICP
147
148# Real-time clock support
149device		aw_rtc		# Allwinner Real-time Clock
150device		mv_rtc		# Marvell Real-time Clock
151
152# Watchdog controllers
153device		aw_wdog		# Allwinner Watchdog
154
155# Power management controllers
156device		axp81x		# X-Powers AXP81x PMIC
157device		rk805		# RockChip RK805 PMIC
158
159# EFUSE
160device		aw_sid		# Allwinner Secure ID EFUSE
161
162# Thermal sensors
163device		aw_thermal	# Allwinner Thermal Sensor Controller
164device		mv_thermal	# Marvell Thermal Sensor Controller
165
166# SPI
167device		bcm2835_spi	# Broadcom BCM283x SPI bus
168
169# PWM
170device		pwm
171device		aw_pwm
172
173device		vt_efifb
174
175# EVDEV support
176options		EVDEV_SUPPORT		# evdev support in legacy drivers
177device		aw_cir
178
179# Pseudo devices.
180options 	EFIRT		# EFI Runtime Services
181
182# EXT_RESOURCES pseudo devices
183options 	EXT_RESOURCES
184device		clk
185device		phy
186device		hwreset
187device		nvmem
188device		regulator
189device		syscon
190device		aw_syscon
191
192# Backlight subsystem
193device		backlight
194
195# Misc devices.
196device		pl330		# ARM PL330 dma controller
197device		xdma		# xDMA framework for SoC on-chip dma controllers
198
199# Chip-specific errata
200options 	THUNDERX_PASS_1_1_ERRATA
201
202options 	FDT
203device		acpi
204
205# DTBs
206makeoptions	MODULES_EXTRA="dtb/allwinner dtb/rockchip dtb/rpi"
207
208# Add CAMDEBUG stuff
209options 	CAMDEBUG
210options 	CAM_DEBUG_FLAGS=(CAM_DEBUG_INFO|CAM_DEBUG_PROBE|CAM_DEBUG_PERIPH)
211
212# bring in camified MMC too
213options		MMCCAM
214
215# arm64 doesn't support inb/outb, so disable chipset probing which needs it
216nooptions 	PPC_PROBE_CHIPSET
217
218# These cause weird issues, not sure why
219nooptions 	DEBUG
220
221# Makes assumptions about bus tags that aren't true on arm64
222nodevice	snd_cmi
223
224# arm64 didn't exist for these releases, so doesn't have the required compat
225# support. Just disable them because they are meaningless.
226nooptions 	COMPAT_FREEBSD4
227nooptions 	COMPAT_FREEBSD5
228nooptions 	COMPAT_FREEBSD6
229nooptions 	COMPAT_FREEBSD7
230nooptions 	COMPAT_FREEBSD9
231nooptions 	COMPAT_FREEBSD10
232
233# arm64 supports 32-bit FreeBSD/arm binaries (armv[67] ABIs)
234options 	COMPAT_FREEBSD32	# Compatible with FreeBSD/arm
235
236#####################################################################
237# ZFS support
238
239options		ZFS
240
241#
242# HID-over-I2C support
243#
244device		iichid		# HID-over-I2C support
245options 	IICHID_DEBUG	# Enable HID-over-I2C debug messages
246options 	IICHID_SAMPLING	# Workaround missing GPIO INTR support
247