On Fri, Feb 19, 2010 at 1:16 PM, Nikumbh, Raj (IE10) <
raj.niku...@honeywell.com> wrote:
> I am using JTAG port with SAM-ICE.
>
Can't you stop your uC at reset addr and step to see if you go to _start or
hit some exception?
I guess you connect GDB to JTAG via monitor and disassemble what you have
On Fri, Feb 19, 2010 at 11:30 AM, Nikumbh, Raj (IE10) <
raj.niku...@honeywell.com> wrote:
>
>
> I want to use the u-boot-1.3.4 with the patch from AT91 for my custom
> board based on AT91RM9200 with 32MB SDRAM (MT48LC8M16A2) and 8MB flash
> (AT49BV6416-70TI). I am directly flashing the image to fl
/* compiler optimization barrier needed for GCC >= 3.4 */
__asm__ __volatile__("": : :"memory");
Why is order of ams instructions important here?
(I did not had time yet to recompile without this membar before
posting this question, so I will try to do it and repro
me one of the most obscure corners of U-Boot.
Best regards,
Drasko DRASKOVIC
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On Mon, Jul 13, 2009 at 12:57 PM, akshay ts wrote:
>
> Hi,
> Can u please tell me the reason, without D cache i dont see significant
> performance improvents.
>
>
> Warm Regards,
> Akshay
>
> --- On Mon, 13/7/09, Drasko DRASKOVIC wrote:
>
> > From: Drasko
have some effect? Compiler seems to produce asm code like it is not
volatile (optimize by deleting conditions, assign values by add and not mov,
etc...)
BR,
Drasko
On Mon, Jul 13, 2009 at 3:38 PM, Rabin Vincent wrote:
> On Fri, Jul 10, 2009 at 02:52:32PM +0200, Drasko DRASKOVIC wrote:
> [...]
&
I yes, D no.
On Mon, Jul 13, 2009 at 9:04 AM, akshay ts wrote:
>
> Hi,
> I want to use i and/or D cache in ARM cortex on a OMAP3430 system without
> MMU. Is it possible?
>
> Warm Regards,
> Akshay
>
>
> Looking for local information? Find it on Yahoo! Local
> http://in.local.yahoo.com/
> __
tor_flash_len = _bss_start - _armboot_start;
for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
if ((*init_fnc_ptr)() != 0) {
hang ();
}
}
...
}
Would I from this point on really have on C stack what I had in r10 in
start.S?
If not,
Hi all,
how do we use itoa() fnc in U-Boot? I can seem to find it (there is
simple_strtoul(), but I need inverse of this).
BR,
Drasko
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Hi Wolfgang,
first of all thanks a lot for your answers.
On Mon, May 25, 2009 at 8:32 PM, Wolfgang Denk wrote:
> Dear Drasko DRASKOVIC,
>
> In message <5ec3d7930905250856k6cffb4ber261bd99f15868...@mail.gmail.com>
> you wrote:
> >
> > I have been looking at M
Hi all,
I have been looking at MAC addr obtaining procedure in lib_arm/board.c and I
am puzzled with this implementation :
/* MAC Address */
{
int i;
ulong reg;
char *s, *e;
char tmp[64];
i = getenv_r ("ethaddr", tmp, sizeof (tmp));
s = (i > 0)
Hmmm... what about these additional steps:
1) Add .o file to COBJS in ./common/Makefile
2) Add CFG_CMD_ to CONFIG_COMMANDS macro in
./include/configs/.h
3) Add CFG_CMD_ definition to ./include/cmd_confdefs.h
are they necesarry? I think that I had to do these also.
BR,
Drasko
On Fri, May 8, 2009
d that ever be?
b) some section of u-boot that goes before TEXT section, and will never be
relocated to RAM _TEXT_BASE. What could that ever be?
Thanks for your answers.
Best regards,
Drasko DRASKOVIC
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htt
ct to assume that you do not use USB on your system
> (resp. did not test USB yet) ?
It is corrrect, no USB used.
Best Regards,
Drasko DRASKOVIC
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e and fast (after
more than one week of torture)!
Best regards,
Drasko DRASKOVIC
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Hi all,
in order to enable data cache in U-Boot on ARM926, I have set up MMU to map
all 4GB region directly (fixed mapping) and created a U-Boot command that
will do all pagetable settings and switch on MMU and caches.
However, when DCache is switched on with WRITETHROUGH or WRITEBACK policy,
U-Bo
On Tue, Mar 31, 2009 at 4:09 PM, Jean-Christophe PLAGNIOL-VILLARD wrote:
> if you want to use the dcache you must first correctly setup the MMU and
the TLB
I set-up :
1) pagetable in the SDRAM (one master pagetable, to map all 4096 pages of
address space to map from the virtual to the same address
On Tue, Mar 31, 2009 at 4:09 PM, Jean-Christophe PLAGNIOL-VILLARD wrote:
>Honnestly we will not work on such old code. so please really consider to
>rebase it against mainline
I downloaded the last version of U-Boot and will do all my work regarding
DCache and MMU setup here.
>first you may start
On Tue, Mar 31, 2009 at 2:21 PM, Jean-Christophe PLAGNIOL-VILLARD wrote:
>but until we can take a look on the code it will be hard to known
And I just found :
./examples/test_burst_lib.S: *void mmu_init(void);
./examples/test_burst_lib.S:.global mmu_init
./examples/test_burst_lib.S:mmu_init
On Tue, Mar 31, 2009 at 2:21 PM, Jean-Christophe PLAGNIOL-VILLARD wrote:
>U-Boot 1.1.6 is quite old (more than 2 years old) please try to the current
version
I know, but that's the one we use... For now, everything works fine.
>is your SOC in the Mainline?
>if you can tell us which one it's and if
>On Mon, Mar 30, 2009 at 10:31 PM, Jean-Christophe PLAGNIOL-VILLARD wrote:
>before booting linux you must disable the cache which will be re-enable by
>linux.
OK. Is that done in bootm.c? I can see lines :
/*
* We have reached the point of no return: we are going to
* overwrite all except
Hi all,
I would like to eneble DCache in U-Boot, because peripheral register R/W and
SDRAM R/W is extremely slow on my platform, so booting Linux image takes
unexceptable long time. But apparently for ARM, MMU setup is needed first.
Now, I did not find example on any presented ARM platforms include
Hi Wolfgang,
>Instead of vague descriptions like "something is wrong within TFTP"
>or "it breaks" you could try and post the exact commands you're
>trying and the exact error messages you are seing,
I am sorry for being vague, I hope this example will make it a bit more
clear:
static v
Hi Wolfgang,
> When "something is wrong within TFTP", the respective function
> returns an error code, which propagates upward and causes the running
> command to terminate, so you automatically end up back in the U-Boot
> shell.
Yes, I agree but the caller might do something else before
On Tue, Mar 17, 2009 at 11:18 AM, Drasko DRASKOVIC <
drasko.drasko...@gmail.com> wrote:
> Actually, I ment U-boot itself. When I said application, I was wrong. I
> ment for example command, which is part of U-Boot. If I want to exit when
> something is wrong within TFTP for exa
Hi all,
I am having hard time to find exit() function in U-Boot, so I can exit from
a application at any function when something goes wrong.
Is there some alternative? I just want to break program execution, printf
message on the screen and regain the prompt.
Salut,
Drasko
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,
but only qemu emulator.
BR,
Drasko
On Sun, Feb 22, 2009 at 11:47 PM, Graeme Russ wrote:
> Hi Drasko,
>
> On Mon, Feb 23, 2009 at 9:17 AM, Drasko DRASKOVIC
> wrote:
> > Hi all,
> > can u-boot be copiled for PC (i.e. x86 machine) and run via qemu. I'd
> like
>
Hi all,
can u-boot be copiled for PC (i.e. x86 machine) and run via qemu. I'd like
to use it for educational purposes, so I was wondering what would be the
best way to start it withouth the board.
BR,
Drasko
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