test app

[Vanalme Filip]

> -----Original Message-----
> From: barebox-bounces at lists.infradead.org [mailto:barebox-
> bounces at lists.infradead.org] On Behalf Of Vanalme Filip
> Sent: dinsdag 8 maart 2011 9:13
> To: Baruch Siach
> Cc: barebox at lists.infradead.org
> Subject: RE: test app
> 
> Thank you Baruch ! Good starting point for my test app.
> 
> > -----Original Message-----
> > From: Baruch Siach [mailto:baruch at tkos.co.il]
> > Sent: dinsdag 8 maart 2011 6:40
> > To: Vanalme Filip
> > Cc: barebox at lists.infradead.org
> > Subject: Re: test app
> >
> > Hi Vanalme,
> >
> > On Mon, Mar 07, 2011 at 02:05:32PM +0100, Vanalme Filip wrote:
> > > We would like to have a kind of small test application, that can be
> > > started from the barebox prompt, to do some basic tests on some hardware
> > components.
> > > What's the best way to do that ? E.g. can I add that test application
> > > to the environment and would this be good practice ? Or do I better
> > > extend the barebox commands with my own command to start the tests ?
> > > Maybe there's an example on how to do it ?
> >
> > I'm using the attached program to do a simple RAM read/write test on i.MX25.
> > This program runs on bare hardware from the internal chip SRAM, and doesn't
> rely
> > on the Barebox run-time code.  I only use Barebox to start this program.
> >
> > The program is built with the following Makefile rules:
> >
> > all: ramtest.bin
> >
> > %.bin: %.elf
> >     ${OBJCOPY} -O binary $^ $@
> >
> > ramtest.elf: ramtest.c
> >     ${CC} -Wall -Os -nostdlib $^ -o $@ -Wl,-Ttext=0x78000000
> >
> > Running this program from the Barebox prompt:
> >
> > cp ramtest.bin /dev/sram0
> > go /dev/sram0
> >
> > I hope this helps.
> >
> > baruch
> >

[Filip] 

As a start, I just took over your Makefile and a minimal source file :

__asm__ (".text\n"
        ".globl _start\n"
        "_start:\n"
        "ldr    sp, =0xA7E00000\n"
        "bl     main\n"
        "stop:\n"
        "b      stop\n"
        );

int main (int argc, char *argv[])
{
	return 0;
}

I think I might still miss something because the assembler part gives me errors e.g. 
	" Error: no such instruction: 'ldr sp,=0xA7E00000' "
	" Error: no such instruction: 'bl main' "
	" Error: no such instruction: 'b stop' "

Maybe a tab/space related issue ?


> > --
> >                                                      ~. .~   Tk Open Systems
> > =}------------------------------------------------ooO--U--Ooo------------{=
> >    - baruch at tkos.co.il - tel: +972.2.679.5364, http://www.tkos.co.il -
> 
> _______________________________________________
> barebox mailing list
> barebox at lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/barebox