[PATCH 477] M68k I/O for generic 8250 on HP300

From: Geert Uytterhoeven (geert_at_linux-m68k.org)
Date: 10/31/04

  • Next message: Geert Uytterhoeven: "[PATCH 501] Sun-3 Makefile: join short multi-line" 
    Date:	Sun, 31 Oct 2004 11:03:35 +0100
To: Linus Torvalds <torvalds@osdl.org>, Andrew Morton <akpm@osdl.org>

    M68k I/O updates from Kars de Jong and Jochen Friedrich:
      - To be able to use the generic 8250 driver on the HP300, added dummy
        implementations of inb(), inb_p(), outb() and outb_p()
      - Added implementations of readb(), writeb(), readl(), and writel() for the
        8250 driver

    Signed-off-by: Kars de Jong <jongk@linux-m68k.org>
    Signed-Off-By: Jochen Friedrich <jochen@scram.de>
    Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>

    --- linux-2.6.10-rc1/include/asm-m68k/io.h 2004-06-20 13:13:50.000000000 +0200
    +++ linux-m68k-2.6.10-rc1/include/asm-m68k/io.h 2004-07-14 13:19:47.000000000 +0200
    @@ -306,6 +306,23 @@
     #endif
     #endif /* CONFIG_PCI */
     
    +#if !defined(CONFIG_ISA) && !defined(CONFIG_PCI) && defined(CONFIG_HP300)
    +/*
    + * We need to define dummy functions otherwise drivers/serial/8250.c doesn't link
    + */
    +#define inb(port) 0xff
    +#define inb_p(port) 0xff
    +#define outb(val,port) do { } while (0)
    +#define outb_p(val,port) do { } while (0)
    +
    +/*
    + * These should be valid on any ioremap()ed region
    + */
    +#define readb(addr) in_8(addr)
    +#define writeb(val,addr) out_8((addr),(val))
    +#define readl(addr) in_le32(addr)
    +#define writel(val,addr) out_le32((addr),(val))
    +#endif
     
     static inline void *ioremap(unsigned long physaddr, unsigned long size)
     {

    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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