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Date:      Mon, 18 Dec 2017 11:25:01 -0600
From:      Karl Denninger <karl@denninger.net>
To:        "freebsd-arm@freebsd.org" <freebsd-arm@freebsd.org>
Subject:   Re: RPI2 boot failure with recent changes to u-boot
Message-ID:  <401bad68-a6f4-ff9f-49e5-431c9441dde7@denninger.net>
In-Reply-To: <1513614709.95072.48.camel@freebsd.org>
References:  <20ad35ef-2166-c429-fad6-21fedef1ff0e@denninger.net> <1513614709.95072.48.camel@freebsd.org>
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[-- Attachment #1 --]

On 12/18/2017 10:31, Ian Lepore wrote:
> On Mon, 2017-12-18 at 10:24 -0600, Karl Denninger wrote:
>> I recently upgraded my "u-boot" package for RPI2 to the current
>> version
>> (and grabbed the "rpi-firmware" package it said it needed) and now I
>> have no-start on the RPI2....
>>
>> U-Boot 2017.09 (Dec 12 2017 - 18:48:47 +0000)
>>
>> DRAM:  948 MiB
>> RPI 2 Model B (0xa21041)
>> MMC:   sdhci@7e300000: 0
>> reading uboot.env
>>
>> ** Unable to read "uboot.env" from mmc0:1 **
>> Using default environment
>>
>> In:    serial
>> Out:   vidconsole
>> Err:   vidconsole
>> Net:   No ethernet found.
>> starting USB...
>> USB0:   Core Release: 2.80a
>> scanning bus 0 for devices... 3 USB Device(s) found
>>        scanning usb for storage devices... 0 Storage Device(s) found
>> Hit any key to stop autoboot:  0
>> switch to partitions #0, OK
>> mmc0 is current device
>> Scanning mmc 0:1...
>> Found FreeBSD U-Boot Loader (bin)
>> reading ubldr.bin
>> 227704 bytes read in 34 ms (6.4 MiB/s)
>> ## Starting application at 0x01000000 ...
>>
>> And that be all I get.
>>
>> This is what I have in board/RaspberryPi2/setup.sh related to that
>> (which I had to change since the firmware files have been split
>> between
>> the two packages)
>>
>> raspberry_pi_populate_boot_partition ( ) {
>>     # Copy RaspberryPi 2 boot files to FAT partition
>>     cp ${FIRMWARE_PATH}/LICENCE.broadcom .
>>     cp ${FIRMWARE_PATH}/bootcode.bin .
>>     cp ${FIRMWARE_PATH}/config.txt .
>>     cp ${FIRMWARE_PATH}/fixup.dat .
>>     cp ${FIRMWARE_PATH}/fixup_cd.dat .
>>     cp ${FIRMWARE_PATH}/fixup_x.dat .
>>     cp ${FIRMWARE_PATH}/start.elf .
>>     cp ${FIRMWARE_PATH}/start_cd.elf .
>>     cp ${FIRMWARE_PATH}/start_x.elf .
>>     cp ${UBOOT_PATH}/u-boot.bin .
>>     cp ${UBOOT_PATH}/fixup_db.dat .
>>     cp ${UBOOT_PATH}/start_db.elf .
>>     cp ${UBOOT_PATH}/README .
>>
>>     # RPi firmware loads and modify the DTB before pass it to kernel.
>>     freebsd_install_fdt rpi2.dts rpi2.dtb
>>
>>     # Install ubldr to FAT partition
>>     freebsd_ubldr_copy_ubldr .
>> }
>>
>> Any ideas on tracking this down?
>>
> How recent is your ubldr.bin?  About a week ago in r326752 I committed
> the patches from PR 224008, which affects the startup code for
> ubldr.bin, so it could possibly be a fix for the problem you're seeing.
>
> (I don't have an rpi2 to test so I can't say for sure.)
>
> -- Ian
I updated the 11.x source tree I use to build this and now I get
further.....

U-Boot 2017.09 (Dec 12 2017 - 18:48:47 +0000)

DRAM:  948 MiB
RPI 2 Model B (0xa21041)
MMC:   sdhci@7e300000: 0
reading uboot.env

** Unable to read "uboot.env" from mmc0:1 **
Using default environment

In:    serial
Out:   vidconsole
Err:   vidconsole
Net:   No ethernet found.
starting USB...
USB0:   Core Release: 2.80a
scanning bus 0 for devices... 3 USB Device(s) found
       scanning usb for storage devices... 0 Storage Device(s) found
Hit any key to stop autoboot:  0
switch to partitions #0, OK
mmc0 is current device
Scanning mmc 0:1...
Found FreeBSD U-Boot Loader (bin)
reading ubldr.bin
235040 bytes read in 33 ms (6.8 MiB/s)
## Starting application at 0x01000000 ...
Consoles: U-Boot console
Compatible U-Boot API signature found @0x3af5d988

FreeBSD/armv6 U-Boot loader, Revision 1.2
(Mon Dec 18 11:14:37 CST 2017 freebsd@NewFS.denninger.net)

DRAM: 948MB
Number of U-Boot devices: 1
U-Boot env: loaderdev not set, will probe all devices.
Found U-Boot device: disk
  Probing all disk devices...
  Checking unit=0 slice=<auto> partition=<auto>... good.
Booting from disk0s2a:
/boot/kernel/kernel text=0x617118 data=0x54300+0x17fbc0
syms=[0x4+0x67d30+0x4+0x9480c]

Hit [Enter] to boot immediately, or any other key for command prompt.
Booting [/boot/kernel/kernel]...
No valid device tree blob found!

Type '?' for a list of commands, 'help' for more detailed help.
loader>


Am  I missing a line in config.txt that needs to be there or did
something else odd happen that the dtb is missing?

-- 
Karl Denninger
karl@denninger.net <mailto:karl@denninger.net>
/The Market Ticker/
/[S/MIME encrypted email preferred]/

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