On Monday 24 March 2014 11:22:03 Catalin Marinas wrote:
> On Fri, Mar 21, 2014 at 09:08:44PM +0000, Rob Herring wrote:
> > diff --git a/drivers/tty/serial/earlycon.c b/drivers/tty/serial/earlycon.c
> > new file mode 100644
> > index 0000000..241757a
> > --- /dev/null
> > +++ b/drivers/tty/serial/earlycon.c
> [...]
> > +static void __iomem * __init earlycon_map(unsigned long paddr, size_t size)
> > +{
> > + void __iomem *base;
> > +#ifdef CONFIG_FIX_EARLYCON_MEM
> > + set_fixmap_nocache(FIX_EARLYCON_MEM_BASE, paddr & PAGE_MASK);
> > + base = (void __iomem *)__fix_to_virt(FIX_EARLYCON_MEM_BASE);
> > + base += paddr & ~PAGE_MASK;
> > +#else
> > + base = ioremap_nocache(paddr, size);
> > +#endif
>
> Just curious why not set_fixmap_io (and plain ioremap)?
Good point. Note that ioremap_nocache() is the same as ioremap()
on *all* architectures.
Arnd
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