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omap: Split OMAP2_IO_ADDRESS to L3 and L4

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This patch splits OMAP2_IO_ADDRESS to OMAP2_L3_IO_ADDRESS and
OMAP2_L4_IO_ADDRESS to reclaim more IO space.

The omap_read*() and omap_write*() functions will work only over
L4 address space. Current omap kernel stack uses these functions
only to access registers over L4 io address space

Note that these macros should only be used when ioremap does
not work. Please use ioremap instead in all new code.

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Santosh Shilimkar
2009-10-19 15:25:31 -07:00
committed by Tony Lindgren
parent b0002e0e37
commit 233fd64e7f
13 changed files with 74 additions and 65 deletions
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12
arch/arm/plat-omap/io.c
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@@ -142,7 +142,7 @@ u8 omap_readb(u32 pa)
if (cpu_class_is_omap1())
return __raw_readb(OMAP1_IO_ADDRESS(pa));
else
return __raw_readb(OMAP2_IO_ADDRESS(pa));
return __raw_readb(OMAP2_L4_IO_ADDRESS(pa));
}
EXPORT_SYMBOL(omap_readb);
@@ -151,7 +151,7 @@ u16 omap_readw(u32 pa)
if (cpu_class_is_omap1())
return __raw_readw(OMAP1_IO_ADDRESS(pa));
else
return __raw_readw(OMAP2_IO_ADDRESS(pa));
return __raw_readw(OMAP2_L4_IO_ADDRESS(pa));
}
EXPORT_SYMBOL(omap_readw);
@@ -160,7 +160,7 @@ u32 omap_readl(u32 pa)
if (cpu_class_is_omap1())
return __raw_readl(OMAP1_IO_ADDRESS(pa));
else
return __raw_readl(OMAP2_IO_ADDRESS(pa));
return __raw_readl(OMAP2_L4_IO_ADDRESS(pa));
}
EXPORT_SYMBOL(omap_readl);
@@ -169,7 +169,7 @@ void omap_writeb(u8 v, u32 pa)
if (cpu_class_is_omap1())
__raw_writeb(v, OMAP1_IO_ADDRESS(pa));
else
__raw_writeb(v, OMAP2_IO_ADDRESS(pa));
__raw_writeb(v, OMAP2_L4_IO_ADDRESS(pa));
}
EXPORT_SYMBOL(omap_writeb);
@@ -178,7 +178,7 @@ void omap_writew(u16 v, u32 pa)
if (cpu_class_is_omap1())
__raw_writew(v, OMAP1_IO_ADDRESS(pa));
else
__raw_writew(v, OMAP2_IO_ADDRESS(pa));
__raw_writew(v, OMAP2_L4_IO_ADDRESS(pa));
}
EXPORT_SYMBOL(omap_writew);
@@ -187,6 +187,6 @@ void omap_writel(u32 v, u32 pa)
if (cpu_class_is_omap1())
__raw_writel(v, OMAP1_IO_ADDRESS(pa));
else
__raw_writel(v, OMAP2_IO_ADDRESS(pa));
__raw_writel(v, OMAP2_L4_IO_ADDRESS(pa));
}
EXPORT_SYMBOL(omap_writel);