sh: Support fixed 32-bit PMB mappings from bootloader.
This provides a method for supporting fixed PMB mappings inherited from
the bootloader, as an alternative to the dynamic PMB mapping currently
used by the kernel. In the future these methods will be combined.
P1/P2 area is handled like a regular 29-bit physical address, and local
bus device are assigned P3 area addresses.
Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/include/asm/io.h b/arch/sh/include/asm/io.h
index 61f6dae..0454f8d 100644
--- a/arch/sh/include/asm/io.h
+++ b/arch/sh/include/asm/io.h
@@ -238,7 +238,7 @@
static inline void __iomem *
__ioremap_mode(unsigned long offset, unsigned long size, unsigned long flags)
{
-#ifdef CONFIG_SUPERH32
+#if defined(CONFIG_SUPERH32) && !defined(CONFIG_PMB_FIXED)
unsigned long last_addr = offset + size - 1;
#endif
void __iomem *ret;
@@ -247,7 +247,7 @@
if (ret)
return ret;
-#ifdef CONFIG_SUPERH32
+#if defined(CONFIG_SUPERH32) && !defined(CONFIG_PMB_FIXED)
/*
* For P1 and P2 space this is trivial, as everything is already
* mapped. Uncached access for P1 addresses are done through P2.