Le 07/11/2013 14:04, Alexander Graf a écrit :
On 07.11.2013, at 14:00, Guillaume Gardet
wrote: Le 07/11/2013 13:34, Alexander Graf a écrit :
On 07.11.2013, at 13:19, Guillaume Gardet
wrote: Le 07/11/2013 11:17, Alexander Graf a écrit :
On 07.11.2013, at 11:14, Guillaume Gardet
wrote: Hi,
here are some tests results of 13.1 images. Results are pretty bad ATM. :(
* Beagleboard xM rev B : - Image fails to boot with the following error message: ******************************************************************************** [ 8.109588] Freeing unused kernel memory: 532K (c07e5000 - c086a000) setterm: cannot (un)set powersave mode: Inappropriate ioctl for device /usr/sbin/klogconsole Thu Nov 7 00:00:00 UTC 2013 [ 13.670684] ehci-omap ehci-omap.0: Can't get PHY device for port 1: -6 [ 15.271728] hub 1-0:1.0: Cannot enable port 1. Maybe the USB cable is bad? [437097081.923981] Including oem partition info file [437097082.043030] Searching for boot device... [ 16.471771] hub 1-0:1.0: Cannot enable port 1. Maybe the USB cable is bad? [ 17.671752] hub 1-0:1.0: Cannot enable port 1. Maybe the USB cable is bad? [ 18.925598] hub 1-0:1.0: Cannot enable port 1. Maybe the USB cable is bad? [ 18.933227] hub 1-0:1.0: unable to enumerate USB device on port 1 [437097110.607544] Failed to find boot device ! [437097110.639527] rebootException: reboot in 120 sec... ********************************************************************************
The USB problem seems to be known: http://www.spinics.net/lists/linux-omap/msg90670.html Is boot problem related? I do not know.
D6 and D7 lights (related to MMC) are turned OFF when kernel start whereas it was ON with u-boot. So, MMC seems to be not working at all. It seems that kernel modules (at least omap mmc modules) from initrd are not loaded. Very strange. If you boot with kiwidebug=1 you should be able to get a shell and check whether the modules are loaded or not. Indeed, mmc modules are not loaded. But loading them manually does not help to get mmc device to appear. I think we are missing other drivers (maybe GPIO). Could you quickly compare the defconfig for omap4 and the one we have to see what we're missing? I think it is missing from initrd only, not rootfs, since initrd has only some of kernel modules. I will try to add some kernel modules to our initrd and see if it helps.
* Pandaboard rev A3 : - Image hangs early with the following message: (Tested with 2 SD cards). ******************************************************************************** U-Boot SPL 2013.04 (Oct 21 2013 - 22:37:21) OMAP4430 ES2.2 OMAP SD/MMC: 0 ********************************************************************************
Is there anyone who could test those images on their baords, especially pandaboard? Andrew reported the same issue. Could you please try with 12.3's SPL (MLO) and/or u-boot.bin to boil down which component is at fault here? I managed to get u-boot working using old MLO (and copying u-boot.bin from boot/ folder to the root of the boot partition). Does only replacing one of the two help already? Yes, replacing MLO only does help. I think our ext2 patch for MLO may be broken for 13.1 u-boot. Maybe we could bump u-boot version at the same time we check MLO patch? Hrm. We're at rc2 here. Maybe it is a good idea to bump the version after all. Sigh.
Could you do it, please? I will not have time for that ATM. :(
But now, I get the following error in u-boot: ******************************************************************************** U-Boot SPL 2013.04-rc2 (Apr 17 2013 - 07:35:53) OMAP4430 ES2.2 OMAP SD/MMC: 0
U-Boot 2013.04 (Oct 21 2013 - 22:37:21)
CPU : OMAP4430 ES2.2 Board: OMAP4 Panda I2C: ready DRAM: 1 GiB MMC: OMAP SD/MMC: 0 Using default environment
In: serial Out: serial Err: serial Net: No ethernet found. Hit any key to stop autoboot: 0 mmc0 is current device SD/MMC found on device 0 1562 bytes read in 12 ms (127 KiB/s) Running bootscript from mmc0 ... ## Executing script at 82000000 kerneladdr=0x80000000 ramdiskaddr=0x82000000 itest - return true/false on integer compare
Usage: itest [.b, .w, .l, .s] [*]value1 <op> [*]value2 mmc0 is current device ** File not found boot/linux.vmx ** 4417952 bytes read in 241 ms (17.5 MiB/s) ** File not found /boot/omap4-panda-es.dtb ** Booting from mmc0 ... ERROR: Did not find a cmdline Flattened Device Tree Could not find a valid device tree ******************************************************************************** the problem is that bootpart has a bad value. 'echo $bootpart' returns '0:2' instead of 0. This is the default value in u-boot for panda but should be overwritten by our script. Why not? I found the problem. We must reset $bootpart otherwise value is not updated. Or use a different variable name? ;)
bootpart is the right name I think, we just need to update it after loading our script.
'itest' error can easily be fixed by setting usefdt and loadfdt to 0 by default. (I could submit a patch for this one later). i thought we do an itest 0$var = 0 or so exactly to not run into this? Yes. But it seems there is still a problem with one of the itest. Defaulting to 0 is not a big deal. ok :)
I found the problem. U-boot already defines loadfdt: echo $loadfdt load mmc ${bootpart} ${fdtaddr} ${bootdir}/${fdtfile} Do we want to change our var name our do we overwrite loadfdt? I think overwriting a u-boot var is not a good idea. Moreover, why do we have 2 vars: usefdt and loadfdt? if we want to use DT, we must load it. And we do not need to load it if we do not use it. Isn't it? I would like to remove loadfdt and only use usefdt. Are you ok?
Once all those little problems fixed manually, u-boot loads kernel and initrd, but I get: ******************************************************************************** Starting kernel ...
undefined instruction pc : [<8000012c>] lr : [<00000090>] Which instruction is that? Just run objdump -d on the vmlinux file and check for the instruction at 0x12c Maybe the one before. objdump -d linux.vmx objdump: linux.vmx: File format not recognized
You need to run objdump on the vmlinux file. linux.vmx is a uImage.
I have: c000812c <__turn_mmu_on_loc>: c000812c: c000812c .word 0xc000812c c0008130: c05558f8 .word 0xc05558f8 c0008134: c0555918 .word 0xc0555918 Guillaume
Alex
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