Beagle RC builds fails at u-boot/kernel boundary

[Zach Pfeffer]

Android Generic Beagle
https://android-build.linaro.org/builds/~patrik-ryd/dev1106genericb/

fails to boot the kernel. It hangs here:

$cat minicom_beagle.txt

Texas Instruments X-Loader 1.4.2 (Feb 19 2009 - 12:01:24)
Reading boot sector
Loading u-boot.bin from mmc

U-Boot 2011.06-rc3-00021-gb80e315 (Jun 28 2011 - 13:13:37)

OMAP3530-GP ES3.1, CPU-OPP2, L3-165MHz, Max CPU Clock 720 mHz
OMAP3 Beagle board + LPDDR/NAND
I2C: ready
DRAM: 256 MiB
NAND: 256 MiB
MMC: OMAP SD/MMC: 0
*** Warning - bad CRC, using default environment

In: serial
Out: serial
Err: serial
Beagle Rev C4
timed out in wait_for_pin: I2C_STAT=0
I2C read: I/O error
Unrecognized expansion board: 0
Die ID #716400240000000004039f220201b020
Hit any key to stop autoboot: 0
SD/MMC found on device 0
reading uEnv.txt

** Unable to read "uEnv.txt" from mmc 0:1 **
reading uImage

3494652 bytes read
Booting from mmc ...
## Booting kernel from Legacy Image at 82000000 ...
   Image Name: Linux-2.6.38.7-g5b2e099
   Image Type: ARM Linux Kernel Image (uncompressed)
   Data Size: 3494588 Bytes = 3.3 MiB
   Load Address: 80008000
   Entry Point: 80008000
   Verifying Checksum ... OK
   Loading Kernel Image ... OK
OK

Starting kernel ...

Uncompressing Linux... done, booting the kernel.

and

here

$cat minicom_beagle_xm.txt

Texas Instruments X-Loader 1.4.4ss (Mar 8 2011 - 08:51:11)
Beagle xM
Reading boot sector
Loading u-boot.bin from mmc

U-Boot 2011.06-rc3-00021-gb80e315 (Jun 28 2011 - 13:13:37)

OMAP3630/3730-GP ES2.1, CPU-OPP2, L3-165MHz, Max CPU Clock 1 Ghz
OMAP3 Beagle board + LPDDR/NAND
I2C: ready
DRAM: 512 MiB
NAND: 0 MiB
MMC: OMAP SD/MMC: 0
*** Warning - readenv() failed, using default environment

In: serial
Out: serial
Err: serial
Beagle unknown 0x02
No EEPROM on expansion board
Die ID #4bac00029ff800000160a7450701c00a
Hit any key to stop autoboot: 0
SD/MMC found on device 0
reading uEnv.txt

** Unable to read "uEnv.txt" from mmc 0:1 **
reading uImage

3494652 bytes read
Booting from mmc ...
## Booting kernel from Legacy Image at 82000000 ...
   Image Name: Linux-2.6.38.7-g5b2e099
   Image Type: ARM Linux Kernel Image (uncompressed)
   Data Size: 3494588 Bytes = 3.3 MiB
   Load Address: 80008000
   Entry Point: 80008000
   Verifying Checksum ... OK
   Loading Kernel Image ... OK
OK

Starting kernel ...

Uncompressing Linux... done, booting the kernel.

[Zach Pfeffer (pfefferz)]

Note: this is probably in the kernel, but these boundary conditions are always tricky.

[Loïc Minier (lool)]

Not sure why this would be a linaro-image-tools issue; moving to linux-linaro

"Uncompressing Linux..." is already within the kernel (uncompressor); I guess next step is enabling earlyprintk in the config and on the kernel cmdline.

[John Stultz (jstultz)]

Seems to be a uboot issue. When replacing the uboot.bin from a working image I have, I get:

Texas Instruments X-Loader 1.4.4ss (Mar 8 2011 - 08:51:11)
Beagle xM
Reading boot sector
Loading u-boot.bin from mmc

U-Boot 2010.06-rc1-00049-ga306f53 (Oct 23 2010 - 17:43:17)

OMAP34xx/35xx-GP ES1.0, CPU-OPP2 L3-165MHz
OMAP3 Beagle board + LPDDR/NAND
I2C: ready
DRAM: 512 MiB
NAND: 256 MiB
*** Warning - bad CRC or NAND, using default environment

In: serial
Out: serial
Err: serial
Beagle xM Rev A
Die ID #1fd600001bf00000015739ea07031025
Hit any key to stop autoboot: 0
OMAP3 beagleboard.org # boot
mmc1 is available
reading boot.scr

389 bytes read
Running bootscript from mmc ...
## Executing script at 82000000
reading uImage

3470616 bytes read
reading uInitrd

171235 bytes read
## Booting kernel from Legacy Image at 80000000 ...
   Image Name: Linux-2.6.38.7-00521-g5b2e099
   Image Type: ARM Linux Kernel Image (uncompressed)
   Data Size: 3470552 Bytes = 3.3 MiB
   Load Address: 80008000
   Entry Point: 80008000
   Verifying Checksum ... OK
## Loading init Ramdisk from Legacy Image at 81600000 ...
   Image Name: Android Ramdisk Image
   Image Type: ARM Linux RAMDisk Image (gzip compressed)
   Data Size: 171171 Bytes = 167.2 KiB
   Load Address: 00000000
   Entry Point: 00000000
   Verifying Checksum ... OK
   Loading Kernel Image ... OK
OK

Starting kernel ...

Uncompressing Linux... done, booting the kernel.
[ 0.000000] Linux version 2.6.38.7-00521-g5b2e099 (<email address hidden>
[ 0.000000] CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=10c53c7f
[ 0.000000] CPU: VIPT nonaliasing data cache, VIPT aliasing instruction cache
[ 0.000000i ne: OMAP3 Beagle Board
[ 0.000000] Reserving 12582912 bytes SDRAM for VRAM
[ 0.000000] Memory policy: ECC disabled, Data cache writeback
[ 0.000000] OMAP3630 ES1.0 (l2cache iva sgx neon isp 192mhz_clk )
[ 0.000000] SRAM: Mapped pa 0x40200000 to va 0xfe400000 size: 0x10000
[ 0.000000] Clocking rate (Crystal/Core/MPU): 26.0/332/600 MHz
[ 0.000000] Reprogramming SDRC clock to 332000000 Hz
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pa6
[ 0.000000] Kernel command line: console=tty0 console=ttyO2,115200n8 rootwai2
[ 0.000000] PID hash table entries: 2048 (order: 1, 8192 bytes)
... and on

[Deepak Saxena (dsaxena-linaro)]

Do you get anything with earlyprintk on the newer u-boot?

[Zach Pfeffer (pfefferz)]

Cool, so we just have to build and ship:

U-Boot 2010.06-rc1-00049-ga306f53 (Oct 23 2010 - 17:43:17)

[John Stultz (jstultz)]

So starting fresh from the linaro android images for beagle:
https://android-build.linaro.org/builds/~patrik-ryd/dev1106genericb/

I replaced the kernel image with the same kernel sha1, but added EARLY_PRINTK to the config and built it.

This provided quite a bit more data about where things go wrong in the kernel. We got all the way to the omap_uart initialization and then I started to get garbage on the serial line. There was more output, but it wasn't readable. Also the screen connected via hdmi bliped out of suspend, so I suspect we got as far as the video initialization.

[John Stultz (jstultz)]

Further, I grabbed the hwpack_linaro-omap3_20110526-1_armel_supported.tar.gz tarball, then extracted the u-boot-linaro-omap3-beagle_2011.04.2-0ubuntu1_armel.deb file and copied over the u-boot.bin file onto my mmc card.

That also booted to a shell without issue:
The version there is:
U-Boot 2011.03 (Apr 20 2011 - 07:19:53)

[Alexander Sack (asac)]

a workaround u-boot is available here: http://people.linaro.org/~asac/android/11.06/beagle/u-boot.bin ... thats a clean 2011.03 u-boot upstream build with omap3_beagle_config

[Alexander Sack (asac)]

fixed in u-boot-linaro-stable 9736a9332fcfe5fef1361a6d91740e160ad04bd5

[Alexander Sack (asac)]

blocks beagle 11.06 release of linaro-android.

[Alexander Sack (asac)]

committed to linaro-android-11.06-release.2 manifests branch.

commit de57ce41794df03af1a9167a8e79450cc2b9c4d2
Author: Alexander Sack <email address hidden>
Date: Wed Jun 29 02:10:41 2011 +0200

    pick up fix for 'Beagle RC builds fails at u-boot/kernel boundary' from u-boot-linaro-stable - lp:803142

[Alexander Sack (asac)]

fixed in beagle-11.06-release build #2:
 * https://android-build.linaro.org/builds/~linaro-android/beagle-11.06-release/#build=2