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SubjectRe: [PATCH v3 4/6] arm: add early_ioremap support
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On Wed, 2014-01-15 at 16:32 -0800, Laura Abbott wrote:
> On 1/9/2014 7:50 PM, Mark Salter wrote:
> ....
> > diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
> > index 987a7f5..038fb75 100644
> > --- a/arch/arm/kernel/setup.c
> > +++ b/arch/arm/kernel/setup.c
> > @@ -36,6 +36,7 @@
> > #include <asm/cpu.h>
> > #include <asm/cputype.h>
> > #include <asm/elf.h>
> > +#include <asm/io.h>
> > #include <asm/procinfo.h>
> > #include <asm/psci.h>
> > #include <asm/sections.h>
> > @@ -887,6 +888,8 @@ void __init setup_arch(char **cmdline_p)
> >
> > parse_early_param();
> >
> > + early_ioremap_init();
> > +
> > sort(&meminfo.bank, meminfo.nr_banks, sizeof(meminfo.bank[0]), meminfo_cmp, NULL);
> >
> > early_paging_init(mdesc, lookup_processor_type(read_cpuid_id()));
>
> Any chance we could do this even earlier, say right after
> setup_processor? It would be nice to be able to do this while FDT
> scanning (I have a use case in mind, potential patches are in the works)

It looks like that would work...




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