Re: Atari TT
On Wed, Jan 4, 2012 at 22:44, Geert Uytterhoeven <geert@linux-m68k.org> wrote:
> On Wed, Jan 4, 2012 at 22:38, Alan Hourihane <alanh@fairlite.co.uk> wrote:
>> On 01/04/12 20:53, Petr Stehlik wrote:
>>> Alan Hourihane píše v Wed 04. 01. 2012 v 20:43 +0000:
>>>>>>> The TT has 4MB STRAM and 128MB TT RAM.
>>>>>> The kernel, framebuffer, several I/O buffers, and probably
>>>>>> the ramdisc and what’s left from TOS/GEM before Linux takes
>>>>>> over all has to fit into it.
>>>>>>
>>>>>> I can verify that Linux 2.6.39 and 3.0 do NOT boot with only
>>>>>> 4 MiB of ST-RAM.
>>>>>>
>>>>> Ouch. Is it not possible to load all of this into TT RAM ?
>>> It should be but there can be issues with that.
>>>
>>>> O.k. there's the -s flag which tells the kernel to load into ST-RAM, so
>>>> I'm assuming omitting that loads the kernel into TT-RAM.
>>> Nope. There's another flag '-t' that tells the bootstrap to load kernel
>>> and/or ramdisk to the TT-RAM. If you omit both these parameters then
>>> there's some auto-detection going on, IIRC. Not sure what are the
>>> defaults so simply go ahead with the -t. It's been more than a decade
>>> when I last hacked on the bootstrap so forgive any inaccurate
>>> information, please.
>>>
>> That can't be right. Adding '-t' just disabled all of my TT-RAM.
>
> bootstrap/atari/bootstrap.c:
>
> static void help( void ){ printf( "Linux/68k Atari Bootstrap
> version " VERSION WITH_BOOTP "\n" "Options:\n" "
> -k<file>: Use <file> as kernel image (defaults: vmlinux,
> vmlinux.gz)\n" " -r<file>: Load ramdisk <file>\n" "
> -s: load kernel to ST-RAM\n" " -R: load ramdisk to ST-RAM\n"
> " -V: protect VideoRAM from overwriting by ramdisk\n" "
> -t: ignore TT-RAM\n"#ifdef USE_BOOTP " -n: no BOOTP\n"#endif
> " -S<size>: pretend ST-RAM having <size>\n" " -T<size>:
> pretend TT-RAM having <size>\n" " -m<start>:<size>: pass extra
> memory block to kernel\n" " -d: print debug infos, wait for
> key before booting\n" " -h, -?: print this help message\n"
> ); getchar(); exit(EXIT_SUCCESS);}
What the hell happened to that indentation?!?
static void help( void )
{
printf(
"Linux/68k Atari Bootstrap version " VERSION WITH_BOOTP "\n"
"Options:\n"
" -k<file>: Use <file> as kernel image (defaults: vmlinux,
vmlinux.gz)\n"
" -r<file>: Load ramdisk <file>\n"
" -s: load kernel to ST-RAM\n"
" -t: ignore TT-RAM\n"
#ifdef USE_BOOTP
" -n: no BOOTP\n"
#endif
" -S<size>: pretend ST-RAM having <size>\n"
" -T<size>: pretend TT-RAM having <size>\n"
" -m<start>:<size>: pass extra memory block to kernel\n"
" -d: print debug infos, wait for key before booting\n"
" -h, -?: print this help message\n"
);
getchar();
exit(EXIT_SUCCESS);
}
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
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