Re: Atari TT (next)

Andreas Schwab
2012-01-08T13:36:56Z

Alan Hourihane <alanh@fairlite.co.uk> writes:

> Now the next problem is that the console is all corrupted because atafb
> initializes and shows this...
>
> atafb_init: start
> atafb_init: initializing TT hw
> atafb: screen_base 0046e000 real_screen_base 0046e000 screen_len 311296
> Determined 640x480, depth 4
> virtual 640x972
>
> Now, that screen_base is above 4MB, and I've only got 4MB STRAM.

screen_base is a virtual address, the physical address is actually
0x146e000.

> But there's also this further up the boot log.
>
> Ignoring memory chunk at 0x0:0x400000 before the first chunk

Since 12d810c1b8c2b913d48e629e2b5c01d105029839 (m68k: discontinuous
memory support) there is no longer support for memory regions with
physical addresses that are out of order. Before that, if the kernel
was loaded to TT-RAM the ST-RAM was virtually mapped just after TT-RAM.

Andreas.

--
Andreas Schwab, schwab@linux-m68k.org
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