[PATCH] sh: Drop hp690 discontig support

There was only one board using this (hp690 specifically), and it just so
happens that it's only physically discontiguous at the "normal" P1 offset.  If
we bump up the P1 offset, it's possible to hit a shadowed region of memory
where we suddenly become magically contiguous.

As people have been using this shadowed region workaround for quite some time
(and without any adverse effects), it's time to drop the left over discontig
bits that no longer have any practical use (it was always very much
hp690-centric to begin with).

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 2 insertions, 19 deletions

diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index 4e9c854845a4..e342565f75fb 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -51,11 +51,6 @@ unsigned long mmu_context_cache = NO_CONTEXT;
 #define MAX_LOW_PFN     (NODE_DATA(0)->bdata->node_low_pfn)
 #endif
 
-#ifdef CONFIG_DISCONTIGMEM
-pg_data_t discontig_page_data[MAX_NUMNODES];
-bootmem_data_t discontig_node_bdata[MAX_NUMNODES];
-#endif
-
 void (*copy_page)(void *from, void *to);
 void (*clear_page)(void *to);
 
@@ -216,15 +211,6 @@ void __init paging_init(void)
 #endif
         NODE_DATA(0)->node_mem_map = NULL;
         free_area_init_node(0, NODE_DATA(0), zones_size, __MEMORY_START >> PAGE_SHIFT, 0);
-
-#ifdef CONFIG_DISCONTIGMEM
-        /*
-         * And for discontig, do some more fixups on the zone sizes..
-         */
-        zones_size[ZONE_DMA] = __MEMORY_SIZE_2ND >> PAGE_SHIFT;
-        zones_size[ZONE_NORMAL] = 0;
-        free_area_init_node(1, NODE_DATA(1), zones_size, __MEMORY_START_2ND >> PAGE_SHIFT, 0);
-#endif
 }
 
 void __init mem_init(void)
@@ -248,7 +234,7 @@ void __init mem_init(void)
         memset(empty_zero_page, 0, PAGE_SIZE);
         __flush_wback_region(empty_zero_page, PAGE_SIZE);
 
-        /* 
+        /*
          * Setup wrappers for copy/clear_page(), these will get overridden
          * later in the boot process if a better method is available.
          */
@@ -257,9 +243,6 @@ void __init mem_init(void)
 
         /* this will put all low memory onto the freelists */
         totalram_pages += free_all_bootmem_node(NODE_DATA(0));
-#ifdef CONFIG_DISCONTIGMEM
-        totalram_pages += free_all_bootmem_node(NODE_DATA(1));
-#endif
         reservedpages = 0;
         for (tmp = 0; tmp < num_physpages; tmp++)
                 /*
@@ -286,7 +269,7 @@ void __init mem_init(void)
 void free_initmem(void)
 {
         unsigned long addr;
-        
+
         addr = (unsigned long)(&__init_begin);
         for (; addr < (unsigned long)(&__init_end); addr += PAGE_SIZE) {
                 ClearPageReserved(virt_to_page(addr));