On Fri, Oct 29, 2010 at 11:12 AM, Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx> wrote:
> On 10/29/2010 11:04 AM, Belisko Marek wrote:
>> On Fri, Oct 29, 2010 at 10:50 AM, Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx> wrote:
>>> On 10/29/2010 10:45 AM, Belisko Marek wrote:
>>>> HI Baruch,
>>>>
>>>> On Fri, Oct 29, 2010 at 10:34 AM, Baruch Siach <baruch@xxxxxxxxxx> wrote:
>>>>> Hi Belisko,
>>>>>
>>>>> On Fri, Oct 29, 2010 at 10:20:46AM +0200, Belisko Marek wrote:
>>>>>> I have 2.6.32 kernel but early_printk isn't available and I enable
>>>>>> lowlevel debugging but
>>>>>> don't get nothing else on console. Anyway thanks.
>>>>>
>>>>> Try this patch to see the low level console output:
>>>>>
>>>>> commit 5c31454464ed655401c31c68c895b16eafd2bde5
>>>>> Author: Baruch Siach <baruch@xxxxxxxxxx>
>>>>> Date: Â Mon Jan 19 10:41:47 2009 +0200
>>>>>
>>>>> Â Âarm, printk: the famous printascii() hack
>>>>>
>>>>> diff --git a/kernel/printk.c b/kernel/printk.c
>>>>> index 5052b54..d685f8a 100644
>>>>> --- a/kernel/printk.c
>>>>> +++ b/kernel/printk.c
>>>>> @@ -685,6 +685,10 @@ asmlinkage int vprintk(const char *fmt, va_list args)
>>>>> Â Â Â Â/* Emit the output into the temporary buffer */
>>>>> Â Â Â Âprinted_len += vscnprintf(printk_buf + printed_len,
>>>>> Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Âsizeof(printk_buf) - printed_len, fmt, args);
>>>>> + Â Â Â {
>>>>> + Â Â Â Â Â Â Â extern void printascii(const char *);
>>>>> + Â Â Â Â Â Â Â printascii(printk_buf);
>>>>> + Â Â Â }
>>>>>
>>>>>
>>>>> Â Â Â Â/*
>>>>>
>>>>> --
>>>>> Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â ~. .~ Â Tk Open Systems
>>>>> =}------------------------------------------------ooO--U--Ooo------------{=
>>>>> Â - baruch@xxxxxxxxxx - tel: +972.2.679.5364, http://www.tkos.co.il -
>>>>>
>>>> Patch works like charm. Output from my kernel startup:
>>>>
>>>> <5>Linux version 2.6.32-rc8 (open-nandra@linux) (gcc version 4.3.5
>>>> (Buildroot 2010.08-rc1) ) #14 Fri Oct 29 10:40:20 CEST 2010
>>>> CPU: ARM920T [41129200] revision 0 (ARMv4T), cr=c0007177
>>>> CPU: VIVT data cache, VIVT instruction cache
>>>> Machine: MINI2440
>>>> Memory policy: ECC disabled, Data cache writeback
>>>> <7>On node 0 totalpages: 0
>>>> <1>bootmem alloc of 32768 bytes failed!
>>>> <0>Kernel panic - not syncing: Out of memory
>>>
>>> do you have a "MEM=32" on your command line?
>> Well I add it but same result:
>
> BTW: It must be "mem=", in lowercase, but you did this.
>
> What I was meant to ask was, if you forget to add the "M" to "32".
> Because with mem=32 you tell Linux just to use 32 bytes of memory. Maybe
> your ATAGs are broken, Linux might not see the whole RAM or any if it.
yes it was typo I forgot put M after 32. Kernel now properly boot :).
U-boot somehow
add kernel this parameter? Because for u-boot I don't need to set this
parameter.
>
> Cheers, Marc
> --
> Pengutronix e.K.         Â| Marc Kleine-Budde      |
> Industrial Linux Solutions    Â| Phone: +49-231-2826-924   |
> Vertretung West/Dortmund     Â| Fax:  +49-5121-206917-5555 |
> Amtsgericht Hildesheim, HRA 2686 Â| http://www.pengutronix.de  |
>
>
thanks,
marek
--
as simple and primitive as possible
-------------------------------------------------
Marek Belisko - OPEN-NANDRA
Freelance Developer
Ruska Nova Ves 219 | Presov, 08005 Slovak Republic
Tel: +421 915 052 184
skype: marekwhite
icq: 290551086
web: http://open-nandra.com
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