On Wed, Nov 05, 2025 at 03:51:03PM +1100, Jonathan Gray wrote:
> On Tue, Nov 04, 2025 at 08:10:44PM -0800, Andrew Hewus Fresh wrote:
> > I recently got a too-cheap-to-be-a-good-idea Allwinner D1 Nezha.
> >
> > It seems to be this:
> > https://docs.aw-ol.com/d1/en/d1_dev/
> >
> > However, I dd'd riscv64/install78.img to an SD card and it doesn't Just
> > Work the way the internet and INSTALL.risc54 seem to indicate it should.
> >
> > I added sun20i-d1-nezha.dtb from dtb-6.14 to /vendor, but it still boots
> > to Tina Linux.
> >
> > I'm not sure quite what I'm looking for though, although I did finally
> > get into a uboot prompt.
>
> It looks like the U-Boot it ships with can't be used,
> and support is not in mainline U-Boot.
>
> Building a replacement is described in:
>
> https://linux-sunxi.org/Allwinner_Nezha
> https://wiki.freebsd.org/riscv/AllwinnerD1
>
> Not something I've tried.
This did work. I followed (mostly) the freebsd.org instructions on a
FreeBSD machine I had available because a couple of tries compiling
riscv64-none-elf-gcc on OpenBSD was not easy enough for something that
might not work. That said, I got a new u-boot built from the "d1-wip"
branch and dd'd that on top of an sdcard with install78.img already
there and it booted right into the installer and allowed me to install
onto a USB stick. It does not see the on-board flash or the sdcard, but
that's OK.
I did have to install some extra packages not listed on that page into
the FreeBSD jail to be able to compile, but that wasn't too bad.
opensbi riscv64-none-elf-gcc git gmake gcc bison python3
py311-setuptools swig
The dmesg (that I haven't looked closely at) is:
https://dmesgd.nycbug.org/index.cgi?do=view&id=8692
OpenBSD 7.8-current (GENERIC) #59: Wed Nov 12 10:39:03 MST 2025
[email protected]:/usr/src/sys/arch/riscv64/compile/GENERIC
real mem = 1073741824 (1024MB)
avail mem = 1008242688 (961MB)
SBI: OpenSBI v1.7, SBI Specification Version 3.0
random: good seed from bootblocks
mainbus0 at root: Allwinner D1 Nezha
cpu0 at mainbus0: T-Head arch 0 imp 0 rv64imafdc
intc0 at cpu0
cpu0: 32KB 64b/line 128-way L1 I-cache, 32KB 64b/line 256-way L1 D-cache
"fit-images" at mainbus0 not configured
"dcxo-clk" at mainbus0 not configured
simplebus0 at mainbus0: "soc"
sxipio0 at simplebus0: 88 pins
sxiccmu0 at simplebus0
plic0 at simplebus0
sxitimer0 at simplebus0: 24000 kHz
sxidog0 at simplebus0
com0 at simplebus0: dw16550
com0: console
com1 at simplebus0: dw16550
"i2c" at simplebus0 not configured
"syscon" at simplebus0 not configured
"dma-controller" at simplebus0 not configured
"efuse" at simplebus0 not configured
"crypto" at simplebus0 not configured
"dram-controller" at simplebus0 not configured
sximmc0 at simplebus0
sdmmc0 at sximmc0: 4-bit, sd high-speed, mmc high-speed, dma
sximmc1 at simplebus0
sdmmc1 at sximmc1: 4-bit, sd high-speed, mmc high-speed, dma
"usb" at simplebus0 not configured
"phy" at simplebus0 not configured
ehci0 at simplebus0
usb0 at ehci0: USB revision 2.0
uhub0 at usb0 configuration 1 interface 0 "Generic EHCI root hub" rev 2.00/1.00
addr 1
ohci0 at simplebus0: version 1.0
ehci1 at simplebus0
usb1 at ehci1: USB revision 2.0
uhub1 at usb1 configuration 1 interface 0 "Generic EHCI root hub" rev 2.00/1.00
addr 1
ohci1 at simplebus0: version 1.0
dwxe0 at simplebus0: address f6:64:d9:b9:b2:55
rgephy0 at dwxe0 phy 1: RTL8169S/8110S/8211, rev. 6
"clock-controller" at simplebus0 not configured
"mixer" at simplebus0 not configured
"mixer" at simplebus0 not configured
"phy" at simplebus0 not configured
"tcon-top" at simplebus0 not configured
"lcd-controller" at simplebus0 not configured
"lcd-controller" at simplebus0 not configured
"power-controller" at simplebus0 not configured
"clock-controller" at simplebus0 not configured
sxirtc0 at simplebus0
sxidog1 at simplebus0
sxidog2 at simplebus0
gpio0 at sxipio0: 32 pins
gpio1 at sxipio0: 32 pins
gpio2 at sxipio0: 32 pins
gpio3 at sxipio0: 32 pins
gpio4 at sxipio0: 32 pins
gpio5 at sxipio0: 32 pins
gpio6 at sxipio0: 32 pins
usb2 at ohci0: USB revision 1.0
uhub2 at usb2 configuration 1 interface 0 "Generic OHCI root hub" rev 1.00/1.00
addr 1
usb3 at ohci1: USB revision 1.0
uhub3 at usb3 configuration 1 interface 0 "Generic OHCI root hub" rev 1.00/1.00
addr 1
"opp-table-cpu" at mainbus0 not configured
"pmu" at mainbus0 not configured
"vcc" at mainbus0 not configured
"vcc-3v3" at mainbus0 not configured
"usbvbus" at mainbus0 not configured
"vdd-cpu" at mainbus0 not configured
"wifi-pwrseq" at mainbus0 not configured
"binman" at mainbus0 not configured
sdmmc1: can't enable card
umass0 at uhub1 port 1 configuration 1 interface 0 "USB SanDisk 3.2Gen1" rev
2.10/1.00 addr 2
umass0: using SCSI over Bulk-Only
scsibus0 at umass0: 2 targets, initiator 0
sd0 at scsibus0 targ 1 lun 0: <USB, SanDisk 3.2Gen1, 1.00> removable
serial.07815583810786ac2d21
sd0: 29358MB, 512 bytes/sector, 60125184 sectors
vscsi0 at root
scsibus1 at vscsi0: 256 targets
softraid0 at root
scsibus2 at softraid0: 256 targets
root on sd0a (0f83db59e45e7b31.a) swap on sd0b dump on sd0b
sxiccmu_d1_set_frequency: 0x00000084
cpu0: clock not implemented
