OpenBSD/loongson on the Lemote Fuloong

In my article about running OpenBSD/loongson on the Lemote Yeeloong back in 2016, I mentioned looking for a Fuloong. All hope seemed lost until the Summer of 2017, when a fellow OpenBSD developer was contacted by a generous user (Thanks again, Lars!) offering to donate two Lemote Fuloong machines, and I was lucky enough to get one of those units.

This machine uses the same CPU as the Yeeloong, a Loongson 2F which is a single-core MIPS-III 64-bit processor running at 800/900 MHz.

As hinted in my previous article, contrarily to the Yeeloong, the Fuloong is less strict with the type of RAM it accepts, and my device is happily running with a Kingston 2GB DDR2 SO-DIMM module (ASU256X64D2S800C6), replacing the original 512MB module.

Here is the result of a quick md5 -t benchmark:

MD5 time trial.  Processing 10000 10000-byte blocks...
Digest = 52e5f9c9e6f656f3e1800dfa5579d089
Time   = 1.726563 seconds
Speed  = 57918535.263411 bytes/second

For the record, LibreSSL speed benchmark results are available here.

System message buffer (dmesg output):

Copyright (c) 1982, 1986, 1989, 1991, 1993
	The Regents of the University of California.  All rights reserved.
Copyright (c) 1995-2021 OpenBSD. All rights reserved.  https://www.OpenBSD.org

OpenBSD 6.9-beta (GENERIC) #74: Fri Feb 26 08:02:25 MST 2021
    deraadt@loongson.openbsd.org:/usr/src/sys/arch/loongson/compile/GENERIC
real mem = 2147483648 (2048MB)
avail mem = 2116452352 (2018MB)
random: boothowto does not indicate good seed
mainbus0 at root: Lemote Fuloong
cpu0 at mainbus0: STC Loongson2F CPU 797 MHz, STC Loongson2F FPU
cpu0: cache L1-I 64KB D 64KB 4 way, L2 512KB 4 way
bonito0 at mainbus0: memory and PCI-X controller, rev 1
pci0 at bonito0 bus 0
re0 at pci0 dev 6 function 0 "Realtek 8169" rev 0x10: RTL8169/8110SCd (0x1800), irq 4, address 00:23:9e:00:0f:71
rgephy0 at re0 phy 7: RTL8169S/8110S/8211 PHY, rev. 2
sisfb0 at pci0 dev 8 function 0 "SiS 315 Pro VGA" rev 0x00: 640x400, 8bpp
wsdisplay0 at sisfb0 mux 1: console (std, vt100 emulation)
glxpcib0 at pci0 dev 14 function 0 "AMD CS5536 ISA" rev 0x03: rev 3, 32-bit 3579545Hz timer, watchdog, gpio, i2c
isa0 at glxpcib0
com0 at isa0 port 0x2f8/8 irq 3: ns16550a, 16 byte fifo
com1 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo
mcclock0 at isa0 port 0x70/2: mc146818 or compatible
gpio1 at glxpcib0: 32 pins
iic at glxpcib0 not configured
glxclk0 at glxpcib0: clock, prof
pciide0 at pci0 dev 14 function 2 "AMD CS5536 IDE" rev 0x01: DMA, channel 0 wired to compatibility, channel 1 wired to compatibility
wd0 at pciide0 channel 0 drive 0: <WDC WD1600BEVS-00VAT0>
wd0: 16-sector PIO, LBA48, 152627MB, 312581808 sectors
wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 2
pciide0: channel 1 ignored (disabled)
auglx0 at pci0 dev 14 function 3 "AMD CS5536 Audio" rev 0x01: isa irq 9, CS5536 AC97
ac97: codec id 0x414c4760 (Avance Logic ALC655 rev 0)
audio0 at auglx0
ohci0 at pci0 dev 14 function 4 "AMD CS5536 USB" rev 0x02: isa irq 11, version 1.0, legacy support
ehci0 at pci0 dev 14 function 5 "AMD CS5536 USB" rev 0x02: isa irq 11
usb0 at ehci0: USB revision 2.0
uhub0 at usb0 configuration 1 interface 0 "AMD EHCI root hub" rev 2.00/1.00 addr 1
usb1 at ohci0: USB revision 1.0
uhub1 at usb1 configuration 1 interface 0 "AMD OHCI root hub" rev 1.00/1.00 addr 1
apm0 at mainbus0
vscsi0 at root
scsibus0 at vscsi0: 256 targets
softraid0 at root
scsibus1 at softraid0: 256 targets
pmon bootpath: bootduid=53153d3cd8ddc482
root on wd0a (53153d3cd8ddc482.a) swap on wd0b dump on wd0b

PCI device data:

# pcidump
Domain /dev/pci0:
 0:6:0: Realtek 8169
 0:8:0: SiS 315 Pro VGA
 0:14:0: AMD CS5536 ISA
 0:14:2: AMD CS5536 IDE
 0:14:3: AMD CS5536 Audio
 0:14:4: AMD CS5536 USB
 0:14:5: AMD CS5536 USB

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