Re: mips64eb seems to be mostly 32-bit

[Simon Burge <simonb%NetBSD.org@localhost>]

Hi Denis,

Denis Ovsienko wrote:

> On Sun, 4 Jul 2021 17:01:14 +0200
> Martin Husemann <martin%duskware.de@localhost> wrote:
>
> > On Sun, Jul 04, 2021 at 12:59:02PM +0100, Denis Ovsienko wrote:
> > > [   3.1606850] boot device: sd0
> > > [   3.1708506] root on sd0a dumps on sd0b  
> > 
> > This is clearly wrong. Do you have any bootargs set in u-boot?
>
> NetBSD kernel receives no arguments, as far as I can tell:
>
> U-Boot 1.1.1 (UBNT Build Version: e102_003_eace7) (May 27 2019 -
> 06:35:40)
>
> fatload usb 0 $(loadaddr) netbsd
> bootoctlinux $(loadaddr) numcores=$(numcores) endbootargs

The problem here is that "fatload usb 0 $(loadaddr) netbsd" doesn't
leave any info at all on how or where that kernel was loaded from (that
I'm aware of, certainly not in a uboot variable).

If you look at how Linux boots on an ER-4 (I don't have a USB in my
Erlite at the moment), you'll see

	bootoctlinux ... root=/dev/mmcblk0p2

We need to do something similar for NetBSD.  For the DD images that have
root on dk1 and a wedge called "octeon-root", either of the following
work

	fatload usb 0 $(loadaddr) netbsd
	bootoctlinux $(loadaddr) root=dk1

or

	fatload usb 0 $(loadaddr) netbsd
	bootoctlinux $(loadaddr) root=wedge:octeon-root

Both of these will boot like this:

	[   2.7199912] dk0 at sd0: "octeon-boot", 163840 blocks at 32768, type: msdos
	[   2.7199912] dk1 at sd0: "octeon-root", 15458304 blocks at 196608, type: ffs
	...
	[   2.7410579] boot device: sd0
	[   2.7410579] root on dk1
	[   2.7499912] root file system type: ffs

Cheers,
Simon.