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authorJustin Waters <justin.waters@timesys.com>2008-02-26 13:07:02 -0500
committerJustin Waters <justin.waters@timesys.com>2008-02-26 13:07:02 -0500
commitb80a32b9cc634adfa8eaef33ec981e7febf2ade2 (patch)
treef256bce13ba11f514a388160df84e1410bedbe2b /arch/m68knommu/mm/memory.c
parent594133ef22fae0d737bd1b57352cf3f48a192c63 (diff)
Update the i.MX31 Kernel to 2.6.232.6.23-mx31ads-2008022618072.6.23-mx31-200802261807
This is the result of a brute-force attempt to update the kernel to 2.6.23. Now that we have a git tree, our effort will be a little nicer in the future. Signed-off-by: Justin Waters <justin.waters@timesys.com>
Diffstat (limited to 'arch/m68knommu/mm/memory.c')
-rw-r--r--arch/m68knommu/mm/memory.c100
1 files changed, 2 insertions, 98 deletions
diff --git a/arch/m68knommu/mm/memory.c b/arch/m68knommu/mm/memory.c
index 411e45248e5c..f93b88b51f9f 100644
--- a/arch/m68knommu/mm/memory.c
+++ b/arch/m68knommu/mm/memory.c
@@ -17,90 +17,14 @@
#include <linux/types.h>
#include <linux/slab.h>
-#include <asm/setup.h>
#include <asm/segment.h>
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/system.h>
-#include <asm/traps.h>
-#include <asm/io.h>
/*
- * cache_clear() semantics: Clear any cache entries for the area in question,
- * without writing back dirty entries first. This is useful if the data will
- * be overwritten anyway, e.g. by DMA to memory. The range is defined by a
- * _physical_ address.
- */
-
-void cache_clear (unsigned long paddr, int len)
-{
-}
-
-
-/*
- * Define cache invalidate functions. The ColdFire 5407 is really
- * the only processor that needs to do some work here. Anything
- * that has separate data and instruction caches will be a problem.
- */
-#ifdef CONFIG_M5407
-
-static __inline__ void cache_invalidate_lines(unsigned long paddr, int len)
-{
- unsigned long sset, eset;
-
- sset = (paddr & 0x00000ff0);
- eset = ((paddr + len) & 0x0000ff0) + 0x10;
-
- __asm__ __volatile__ (
- "nop\n\t"
- "clrl %%d0\n\t"
- "1:\n\t"
- "movel %0,%%a0\n\t"
- "addl %%d0,%%a0\n\t"
- "2:\n\t"
- ".word 0xf4e8\n\t"
- "addl #0x10,%%a0\n\t"
- "cmpl %1,%%a0\n\t"
- "blt 2b\n\t"
- "addql #1,%%d0\n\t"
- "cmpil #4,%%d0\n\t"
- "bne 1b"
- : : "a" (sset), "a" (eset) : "d0", "a0" );
-}
-
-#else
-#define cache_invalidate_lines(a,b)
-#endif
-
-
-/*
- * cache_push() semantics: Write back any dirty cache data in the given area,
- * and invalidate the range in the instruction cache. It needs not (but may)
- * invalidate those entries also in the data cache. The range is defined by a
- * _physical_ address.
- */
-
-void cache_push (unsigned long paddr, int len)
-{
- cache_invalidate_lines(paddr, len);
-}
-
-
-/*
- * cache_push_v() semantics: Write back any dirty cache data in the given
- * area, and invalidate those entries at least in the instruction cache. This
- * is intended to be used after data has been written that can be executed as
- * code later. The range is defined by a _user_mode_ _virtual_ address (or,
- * more exactly, the space is defined by the %sfc/%dfc register.)
- */
-
-void cache_push_v (unsigned long vaddr, int len)
-{
- cache_invalidate_lines(vaddr, len);
-}
-
-/* Map some physical address range into the kernel address space. The
- * code is copied and adapted from map_chunk().
+ * Map some physical address range into the kernel address space.
+ * The code is copied and adapted from map_chunk().
*/
unsigned long kernel_map(unsigned long paddr, unsigned long size,
@@ -109,23 +33,3 @@ unsigned long kernel_map(unsigned long paddr, unsigned long size,
return paddr;
}
-
-int is_in_rom(unsigned long addr)
-{
- extern unsigned long _ramstart, _ramend;
-
- /*
- * What we are really trying to do is determine if addr is
- * in an allocated kernel memory region. If not then assume
- * we cannot free it or otherwise de-allocate it. Ideally
- * we could restrict this to really being in a ROM or flash,
- * but that would need to be done on a board by board basis,
- * not globally.
- */
- if ((addr < _ramstart) || (addr >= _ramend))
- return(1);
-
- /* Default case, not in ROM */
- return(0);
-}
-