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Date:      Sun, 6 Dec 2015 16:56:07 -0600
From:      Erik Moe <e.moe@rcn.com>
To:        Warner Losh <imp@bsdimp.com>
Cc:        "freebsd-arm@freebsd.org" <freebsd-arm@freebsd.org>
Subject:   Re: Raspberry Pi Zero
Message-ID:  <F8B102B1-05A9-4456-A509-D7EC74C19443@rcn.com>
In-Reply-To: <F8AA2546-6ED4-44D8-9AF0-F73B270A96B3@rcn.com>
References:  <44D770D9-F1EF-461E-BB1A-8A19E9FB4BC8@rcn.com> <4D7C44B3-8135-4431-A07B-6135284D0C02@bsdimp.com> <5663E1FA.3060602@kronometrix.org> <566407CE.4020403@gmail.com> <CANCZdfpOBGKni7tUXbjxieTRBB=ONhypUQsaKu4a3UyWEP-_0w@mail.gmail.com> <B9614EFF-DA70-48BB-AFB3-2574C2936620@rcn.com> <CANCZdfqeCqoAFD_tVP_rT6XRNWzhPhijDboh9x53SOPKpkuhdw@mail.gmail.com> <F8AA2546-6ED4-44D8-9AF0-F73B270A96B3@rcn.com>

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So the new firmware works on a RPI-B, RPI-B+, RPI-2 with the RPI-2 image =
and RPI-Zero.  So whatever changes were made to make the RPI-Zero work =
are compatible with all the previous version of the Pi.  So it just =
seems a matter updating the u-boot-rpi and u-boot-rpi2 ports.

Erik

> On Dec 6, 2015, at 11:01 AM, Erik Moe <e.moe@rcn.com> wrote:
>=20
>=20
>> On Dec 6, 2015, at 10:47 AM, Warner Losh <imp@bsdimp.com> wrote:
>>=20
>>=20
>>=20
>> On Sun, Dec 6, 2015 at 9:45 AM, Erik Moe <e.moe@rcn.com =
<mailto:e.moe@rcn.com>> wrote:
>> Firmware was the issue.  I mounted the MSDOS partition of the latest =
RPI-B snapshot, replaced bootcode.bin, fixup.dat, fixup_cd.dat, =
start.elf and start_cd.elf from https://github.com/raspberrypi/firmware =
<https://github.com/raspberrypi/firmware>; and the Zero booted right up =
into multi-user mode.  It didn=E2=80=99t seem to mind that the DTB was =
for the RPI-B.
>>=20
>>=20
>> Cool. Any chance you can try the same image on an RPI-B?=20
>=20
> Yes, I=E2=80=99m curious myself.  I=E2=80=99ll give it a try
>=20
>>=20
>> Warner=20
>=20
> Granted it=E2=80=99s only running at 700Mhz.  Is that a DTB thing or a =
kernel thing?
>=20
> reading ubldr.bin
> 214704 bytes read in 29 ms (7.1 MiB/s)
> ## No elf image at address 0x00200000
> ## Starting application at 0x00200000 ...
> Consoles: U-Boot console
> Compatible U-Boot API signature found @1db474d0
>=20
> FreeBSD/armv6 U-Boot loader, Revision 1.2
> (root@releng2.nyi.freebsd.org, Tue Dec  1 08:17:13 UTC 2015)
>=20
> DRAM: 480MB
> Number of U-Boot devices: 1
> U-Boot env: loaderdev=3D'mmc 0'
> Found U-Boot device: disk
>  Checking unit=3D0 slice=3D<auto> partition=3D<auto>... good.
> Booting from disk0s2a: %
> /boot/kernel/kernel data=3D0x5d6aa4+0xe555c =
syms=3D[0x4+0xc5fb0+0x4+0x94dbb]
>=20
> Hit [Enter] to boot immediately, or any other key for command prompt.
> Booting [/boot/kernel/kernel]...
> Using DTB provided by U-Boot at address 0x100.
> Kernel entry at 0x400100...
> Kernel args: (null)
> KDB: debugger backends: ddb
> KDB: current backend: ddb
> Copyright (c) 1992-2015 The FreeBSD Project.
> Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, =
1994
>        The Regents of the University of California. All rights =
reserved.
> FreeBSD is a registered trademark of The FreeBSD Foundation.
> FreeBSD 11.0-CURRENT #0 r291495: Tue Dec  1 08:23:29 UTC 2015
>    root@releng2.nyi.freebsd.org:/usr/obj/arm.armv6/usr/src/sys/RPI-B =
arm
> FreeBSD clang version 3.7.0 (tags/RELEASE_370/final 246257) 20150906
> VT: init without driver.
> sema_sysinit
> CPU: ARM1176JZ-S rev 7 (ARM11J core)
> Supported features: ARM_ISA THUMB2 JAZELLE ARMv4 Security_Ext
> WB enabled LABT branch prediction enabled
>  16KB/32B 4-way instruction cache
>  16KB/32B 4-way write-back-locking-C data cache
> real memory  =3D 503312384 (479 MB)
> avail memory =3D 481800192 (459 MB)
> random: entropy device external interface
> kbd0 at kbdmux0
> ofwbus0: <Open Firmware Device Tree>
> simplebus0: <Flattened device tree simple bus> mem =
0x20000000-0x20ffffff on ofwbus0
> cpulist0: <Open Firmware CPU Group> on ofwbus0
> cpu0: <Open Firmware CPU> on cpulist0
> bcm2835_cpufreq0: <CPU Frequency Control> on cpu0
> intc0: <BCM2835 Interrupt Controller> mem 0xb200-0xb3ff on simplebus0
> systimer0: <BCM2835 System Timer> mem 0x3000-0x3fff irq 8,9,10,11 on =
simplebus0
> Event timer "BCM2835-3" frequency 1000000 Hz quality 1000
> Timecounter "BCM2835-3" frequency 1000000 Hz quality 1000
> bcmwd0: <BCM2708/2835 Watchdog> mem 0x10001c-0x100027 on simplebus0
> gpio0: <BCM2708/2835 GPIO controller> mem 0x200000-0x2000af irq =
57,59,58,60 on simplebus0
> gpio0: read-only pins: 46-53.
> gpio0: reserved pins: 48-53.
> gpiobus0: <OFW GPIO bus> on gpio0
> gpioled0: <GPIO led> at pin 16 on gpiobus0
> gpioc0: <GPIO controller> on gpio0
> iichb0: <BCM2708/2835 BSC controller> mem 0x205000-0x20501f irq 61 on =
simplebus0
> iicbus0: <OFW I2C bus> on iichb0
> iic0: <I2C generic I/O> on iicbus0
> iichb1: <BCM2708/2835 BSC controller> mem 0x804000-0x80401f irq 61 on =
simplebus0
> iicbus1: <OFW I2C bus> on iichb1
> iic1: <I2C generic I/O> on iicbus1
> spi0: <BCM2708/2835 SPI controller> mem 0x204000-0x20401f irq 62 on =
simplebus0
> spibus0: <OFW SPI bus> on spi0
> bcm_dma0: <BCM2835 DMA Controller> mem 0x7000-0x7fff,0xe05000-0xe05fff =
irq 24,25,26,27,28,29,30,31,32,33,34,35,36 on simplebus0
> mbox0: <BCM2835 VideoCore Mailbox> mem 0xb880-0xb8bf irq 1 on =
simplebus0
> sdhci_bcm0: <Broadcom 2708 SDHCI controller> mem 0x300000-0x3000ff irq =
70 on simplebus0
> mmc0: <MMC/SD bus> on sdhci_bcm0
> uart0: <PrimeCell UART (PL011)> mem 0x201000-0x201fff irq 65 on =
simplebus0
> uart0: console (115200,n,8,1)
> vchiq0: <BCM2835 VCHIQ> mem 0xb800-0xb84f irq 2 on simplebus0
> vchiq: local ver 8 (min 3), remote ver 8.
> pcm0: <VCHQI audio> on vchiq0
> bcm283x_dwcotg0: <DWC OTG 2.0 integrated USB controller (bcm283x)> mem =
0x980000-0x99ffff irq 17 on simplebus0
> usbus0 on bcm283x_dwcotg0
> fb0: <BCM2835 VT framebuffer driver> on ofwbus0
> fbd0 on fb0
> VT: initialize with new VT driver "fb".
> fb0: 656x416(656x416@0,0) 24bpp
> fb0: fbswap: 1, pitch 1968, base 0x1eaac000, screen_size 818688
> cryptosoft0: <software crypto>
> Timecounters tick every 10.000 msec
> IPsec: Initialized Security Association Processing.
> usbus0: 480Mbps High Speed USB v2.0
> bcm2835_cpufreq0: ARM 700MHz, Core 250MHz, SDRAM 400MHz, Turbo OFF
> ugen0.1: <DWCOTG> at usbus0
> uhub0: <DWCOTG OTG Root HUB, class 9/0, rev 2.00/1.00, addr 1> on =
usbus0
> mmcsd0: 8GB <SDHC SL08G 8.0 SN 29CFEE4E MFG 09/2015 by 3 SD> at mmc0 =
41.6MHz/4bit/65535-block
> Trying to mount root from ufs:/dev/ufs/rootfs [rw]...
> warning: no time-of-day clock registered, system time will not be set =
accurately
> uhub0: 1 port with 1 removable, self powered
> Setting hostuuid: 83cb9b0d-9805-11e5-a352-0d59aa7881dc.
> Setting hostid: 0xb11e12a1.
> No suitable dump device was found.
> Starting file system checks:
> /dev/ufs/rootfs: FILE SYSTEM CLEAN; SKIPPING CHECKS
> /dev/ufs/rootfs: clean, 1736538 free (194 frags, 217043 blocks, 0.0% =
fragmentation)
> Mounting local file systems:.
> Setting hostname: rpi-b.
> Setting up =
harvesting:[UMA],[FS_ATIME],SWI,INTERRUPT,NET_NG,NET_ETHER,NET_TUN,MOUSE,K=
EYBOARD,ATTACH,CACHED
> Feeding entropy:random: unblocking device.
> .
> Starting Network: lo0.
> lo0: flags=3D8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
>        options=3D600003<RXCSUM,TXCSUM,RXCSUM_IPV6,TXCSUM_IPV6>
>        inet6 ::1 prefixlen 128
>        inet6 fe80::1%lo0 prefixlen 64 scopeid 0x1
>        inet 127.0.0.1 netmask 0xff000000
>        groups: lo
>        nd6 options=3D21<PERFORMNUD,AUTO_LINKLOCAL>
> ELF ldconfig path: /lib /usr/lib /usr/lib/compat
> Starting devd.
> add net fe80::: gateway ::1
> add net ff02::: gateway ::1
> add net ::ffff:0.0.0.0: gateway ::1
> add net ::0.0.0.0: gateway ::1
> Creating and/or trimming log files.
> Starting syslogd.
> Starting casperd.
> Clearing /tmp (X related).
> Updating motd:.
> Mounting late file systems:.
> Configuring vt: blanktime.
> Performing sanity check on sshd configuration.
> Starting sshd.
> Starting cron.
> Starting background file system checks in 60 seconds.
>=20
> Tue Dec  1 08:34:11 UTC 2015
>=20
> FreeBSD/arm (rpi-b) (ttyu0)
>=20
> login:
>=20
> Erik
>=20
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