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sh: Remap physical memory into P1 and P2 in pmb_init()

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Eventually we'll have complete control over what physical memory gets
mapped where and we can probably do other interesting things. For now
though, when the MMU is in 32-bit mode, we map physical memory into the
P1 and P2 virtual address ranges with the same semantics as they have in
29-bit mode.

Signed-off-by: Matt Fleming <matt@console-pimps.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Matt Fleming
2009-10-06 21:22:30 +00:00
committed by Paul Mundt
parent edd7de803c
commit 3105121949
3 changed files with 18 additions and 42 deletions
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4
arch/sh/include/asm/io.h
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@ -246,7 +246,7 @@ void __iounmap(void __iomem *addr);
static inline void __iomem *
__ioremap_mode(unsigned long offset, unsigned long size, unsigned long flags)
{
#if defined(CONFIG_SUPERH32) && !defined(CONFIG_PMB_FIXED)
#if defined(CONFIG_SUPERH32) && !defined(CONFIG_PMB_FIXED) && !defined(CONFIG_PMB)
unsigned long last_addr = offset + size - 1;
#endif
void __iomem *ret;
@ -255,7 +255,7 @@ __ioremap_mode(unsigned long offset, unsigned long size, unsigned long flags)
if (ret)
return ret;
#if defined(CONFIG_SUPERH32) && !defined(CONFIG_PMB_FIXED)
#if defined(CONFIG_SUPERH32) && !defined(CONFIG_PMB_FIXED) && !defined(CONFIG_PMB)
/*
* For P1 and P2 space this is trivial, as everything is already
* mapped. Uncached access for P1 addresses are done through P2.