Date: Sun, 21 Jul 2013 14:32:40 -0700 From: Tim Kientzle <tim@kientzle.com> To: Tom Everett <tom@khubla.com> Cc: "freebsd-arm@freebsd.org" <arm@freebsd.org> Subject: Re: Booting Beagleboard Black Message-ID: <D766D953-DE47-4936-9A3F-B548D9F450A9@kientzle.com> In-Reply-To: <CAB3ij4Bd8tPHQ8xuZF7yobog4Rs1rt3skEFRdKkVAJnjMX0Xig@mail.gmail.com> References: <CAB3ij4C-H5iutjPp=57BtTQFZpM1iZhz-ku0wRBnKodkt1YK-Q@mail.gmail.com> <97D78167-9428-4005-89EE-15A78F74BE46@gromit.dlib.vt.edu> <CAB3ij4DR8KJpVZCCxtHtG2QMWZGAdnjfDw5127CuwemgMY=FCA@mail.gmail.com> <44AB19F7-A0D3-4F0C-A1F4-66AA49283387@gromit.dlib.vt.edu> <CAB3ij4Bd8tPHQ8xuZF7yobog4Rs1rt3skEFRdKkVAJnjMX0Xig@mail.gmail.com>
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On Jul 21, 2013, at 12:27 PM, Tom Everett wrote:
> ok, so I got the serial cable from Adafruit, and I now get this with a
> crochet-built kernel. Is this perhaps a bug in crochet?
Possible, though I just this morning I built and booted
a BeagleBone Black system using Crochet. I believe the
Crochet I'm using here has no changes from what's on github.
My build system is -CURRENT that I rebuilt from source a few days
ago, and I only have one local patch to the -CURRENT sources
I'm using to build the BeagleBone Black image (details below).
For reference, here is my "beagleblack.sh" configuration:
board_setup BeagleBone
option ImageSize 900mb
FREEBSD_SRC=${TOPDIR}/src
FREEBSD_WORLD_EXTRA_ARGS="-DWITH_ARM_EABI -DNOCLEAN"
FREEBSD_KERNEL_EXTRA_ARGS="-DKERNFAST"
FREEBSD_FORCE_BUILDKERNEL=y
I don't think any of the last four items here are necessary
(in particular WITH_ARM_EABI is now the default; I just
haven't removed it from my local config yet).
I then used
$ sudo ./crochet -c beagleblack.sh
to build the image.
> U-Boot SPL 2013.04 (Jul 11 2013 - 21:49:14)
> OMAP SD/MMC: 0
> reading bb-uboot.img
> reading bb-uboot.img
>
>
> U-Boot 2013.04 (Jul 11 2013 - 21:49:14)
So MLO and BB-uboot.img are there and working
correctly.
> FreeBSD/armv6 U-Boot loader, Revision 1.2
> (root@bernice, Sat Jul 20 20:59:18 MDT 2013)
> DRAM: 512MB
And U-Boot is correctly loading bbubldr.
> Device: disk
> |
> can't load 'kernel'
>
> Type '?' for a list of commands, 'help' for more detailed help.
> loader>
What does "ls" here show?
Sounds like the kernel didn't get installed for some reason.
You should be able to look at the UFS partition from
the loader> prompt and figure out what's missing.
Tim
P.S. My only local change right now is a fix for the
'panic: lock "vm map (user)" already initialized' bug that
has been plaguing armv6 for a while:
Index: sys/vm/vm_map.c
===================================================================
--- sys/vm/vm_map.c (revision 253514)
+++ sys/vm/vm_map.c (working copy)
@@ -239,8 +239,7 @@
vm_map_t map;
map = (vm_map_t)mem;
- map->nentries = 0;
- map->size = 0;
+ memset(map, 0, sizeof(*map));
mtx_init(&map->system_mtx, "vm map (system)", NULL, MTX_DEF | MTX_DUPOK);
sx_init(&map->lock, "vm map (user)");
return (0);
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