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Date: Mon, 14 Apr 2014 09:51:49 -0600
From: Gary Thomas <gary@mlbassoc.com>
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To: Denys Dmytriyenko <denis@denix.org>
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Subject: Re: BBB doesn't boot
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On 2014-04-14 09:46, Denys Dmytriyenko wrote:
> On Mon, Apr 14, 2014 at 04:25:55AM -0600, Gary Thomas wrote:
>> On 2014-04-13 20:33, Denys Dmytriyenko wrote:
>>> On Sun, Apr 13, 2014 at 03:12:16AM -0600, Gary Thomas wrote:
>>>> I just tried building (core-image-sato) for my BeagleBoneBlack
>>>> using the latest Poky/Yocto master:
>>>>
>>>> Build Configuration:
>>>> BB_VERSION        = "1.23.0"
>>>> BUILD_SYS         = "i686-linux"
>>>> NATIVELSBSTRING   = "Fedora-13"
>>>> TARGET_SYS        = "arm-poky-linux-gnueabi"
>>>> MACHINE           = "beaglebone"
>>>> DISTRO            = "poky"
>>>> DISTRO_VERSION    = "1.6+snapshot-20140411"
>>>> TUNE_FEATURES     = "armv7a vfp neon callconvention-hard cortexa8"
>>>> TARGET_FPU        = "vfp-neon"
>>>> meta
>>>> meta-yocto
>>>> meta-yocto-bsp    = "master:863cc7483f5ee43189537940de8ee5c0964d24cc"
>>>>
>>>> This built the kernel using SRCREV 928d7b2dda
>>>>
>>>> I followed the bring-up instructions from README.hadware and the
>>>> boot failed to even start the kernel.  Here's what I see:
>>>>
>>>> =============================== boot log =========================================
>>>> U-Boot 2013.07 (Apr 11 2014 - 15:03:04)
>>>>
>>>> I2C:   ready
>>>> DRAM:  512 MiB
>>>> WARNING: Caches not enabled
>>>> NAND:  0 MiB
>>>> MMC:   OMAP SD/MMC: 0, OMAP SD/MMC: 1
>>>> *** Warning - readenv() failed, using default environment
>>>>
>>>> musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, HB-ISO Rx, HB-ISO Tx, SoftConn)
>>>> musb-hdrc: MHDRC RTL version 2.0
>>>> musb-hdrc: setup fifo_mode 4
>>>> musb-hdrc: 28/31 max ep, 16384/16384 memory
>>>> USB Peripheral mode controller at 47401000 using PIO, IRQ 0
>>>> musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, HB-ISO Rx, HB-ISO Tx, SoftConn)
>>>> musb-hdrc: MHDRC RTL version 2.0
>>>> musb-hdrc: setup fifo_mode 4
>>>> musb-hdrc: 28/31 max ep, 16384/16384 memory
>>>> USB Host mode controller at 47401800 using PIO, IRQ 0
>>>> Net:   <ethaddr> not set. Validating first E-fuse MAC
>>>> Phy not found
>>>> PHY reset timed out
>>>> cpsw, usb_ether
>>>> Hit any key to stop autoboot:  0
>>>> mmc0 is current device
>>>> SD/MMC found on device 0
>>>> reading uEnv.txt
>>>> ** Unable to read file uEnv.txt **
>>>> 4981688 bytes read in 613 ms (7.7 MiB/s)
>>>> 29192 bytes read in 46 ms (619.1 KiB/s)
>>>> Booting from mmc ...
>>>> ## Booting kernel from Legacy Image at 80200000 ...
>>>>    Image Name:   Linux-3.14.0-yocto-standard
>>>>    Image Type:   ARM Linux Kernel Image (uncompressed)
>>>>    Data Size:    4981624 Bytes = 4.8 MiB
>>>>    Load Address: 80008000
>>>>    Entry Point:  80008000
>>>>    Verifying Checksum ... OK
>>>> ## Flattened Device Tree blob at 80f80000
>>>>    Booting using the fdt blob at 0x80f80000
>>>>    Loading Kernel Image ... OK
>>>>    Using Device Tree in place at 80f80000, end 80f8a207
>>>>
>>>> Starting kernel ...
>>>> ==================================================================================
>>>>
>>>> Any ideas what I've done wrong?
>>>
>>> Hmm, everything looks sane. What revision is your BBB? And did you press 
>>> USER/BOOT button or erased eMMC partition per instructions?
>>>
>>
>> Revision A5A, with an LCD cape
> 
> Hmm, I'm wondering if LCD cape conflicts here - there's no cape support in 
> this BSP. Can you try w/o it?

Sure I can try it but I don't think that's it.  I got the kernel that StefanX
built and booted and tried it on my board and it came up.  No clue why the
kernels are different - ostensibly we both built the same image from the same
meta data, but they are slightly different (only in size - I compared the
System.map files from both builds and they contain exactly the same bits,
just a few changes in memory layout which I can't explain).

I'm trying another build from scratch using a different build host to see
if that makes a difference.

> As of the board revision - I was testing on different ones from A1 to A6 and 
> didn't see any major issue...
> 

-- 
------------------------------------------------------------
Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
------------------------------------------------------------