Re: [PATCH] fix ppc ioremap prototype

Paul Mackerras
2003-09-04T23:20:46Z

Geert Uytterhoeven writes:

> inb() and friends are for ISA/PCI I/O space
> isa_readb() and friends are for ISA memory space
> readb() and friends are for PCI memory space (after ioremap())
>
> That's why other buses (e.g. SBUS and Zorro) have their own versions of
> ioremap() and readb() etc.).

I suggest you fix Documentation/zorro.txt then: 8-)

: Writing Device Drivers for Zorro Devices
: ----------------------------------------
:
: Written by Geert Uytterhoeven <geert@linux-m68k.org>
: Last revised: February 27, 2000

[snip]

: - Zorro III address space must be mapped explicitly using ioremap() first
: before it can be accessed:
:
: virt_addr = ioremap(bus_addr, size);
: ...
: iounmap(virt_addr);

Regards,
Paul.