ARM: Remove DISCONTIGMEM support

Everything should now be using sparsemem rather than discontigmem, so
remove the code supporting discontigmem from ARM.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mach-pxa/corgi.c b/arch/arm/mach-pxa/corgi.c
index 3d1dcb9..95234fb4 100644
--- a/arch/arm/mach-pxa/corgi.c
+++ b/arch/arm/mach-pxa/corgi.c
@@ -715,7 +715,6 @@
 	sharpsl_save_param();
 	mi->nr_banks=1;
 	mi->bank[0].start = 0xa0000000;
-	mi->bank[0].node = 0;
 	if (machine_is_corgi())
 		mi->bank[0].size = (32*1024*1024);
 	else
diff --git a/arch/arm/mach-pxa/eseries.c b/arch/arm/mach-pxa/eseries.c
index 96ed130..a0ab308 100644
--- a/arch/arm/mach-pxa/eseries.c
+++ b/arch/arm/mach-pxa/eseries.c
@@ -34,7 +34,6 @@
 {
 	mi->nr_banks=1;
 	mi->bank[0].start = 0xa0000000;
-	mi->bank[0].node = 0;
 	if (machine_is_e800())
 		mi->bank[0].size = (128*1024*1024);
 	else
diff --git a/arch/arm/mach-pxa/generic.h b/arch/arm/mach-pxa/generic.h
index 890fb90..c6305c5 100644
--- a/arch/arm/mach-pxa/generic.h
+++ b/arch/arm/mach-pxa/generic.h
@@ -26,8 +26,7 @@
 
 #define SET_BANK(__nr,__start,__size) \
 	mi->bank[__nr].start = (__start), \
-	mi->bank[__nr].size = (__size), \
-	mi->bank[__nr].node = (((unsigned)(__start) - PHYS_OFFSET) >> 27)
+	mi->bank[__nr].size = (__size)
 
 #define ARRAY_AND_SIZE(x)	(x), ARRAY_SIZE(x)
 
diff --git a/arch/arm/mach-pxa/include/mach/memory.h b/arch/arm/mach-pxa/include/mach/memory.h
index f626730..81fd4a0 100644
--- a/arch/arm/mach-pxa/include/mach/memory.h
+++ b/arch/arm/mach-pxa/include/mach/memory.h
@@ -17,18 +17,6 @@
  */
 #define PHYS_OFFSET	UL(0xa0000000)
 
-/*
- * The nodes are matched with the physical SDRAM banks as follows:
- *
- * 	node 0:  0xa0000000-0xa3ffffff	-->  0xc0000000-0xc3ffffff
- * 	node 1:  0xa4000000-0xa7ffffff	-->  0xc4000000-0xc7ffffff
- * 	node 2:  0xa8000000-0xabffffff	-->  0xc8000000-0xcbffffff
- * 	node 3:  0xac000000-0xafffffff	-->  0xcc000000-0xcfffffff
- *
- * This needs a node mem size of 26 bits.
- */
-#define NODE_MEM_SIZE_BITS	26
-
 #if !defined(__ASSEMBLY__) && defined(CONFIG_MACH_ARMCORE) && defined(CONFIG_PCI)
 void cmx2xx_pci_adjust_zones(int node, unsigned long *size,
 			     unsigned long *holes);
diff --git a/arch/arm/mach-pxa/poodle.c b/arch/arm/mach-pxa/poodle.c
index f4abdaa..bc2758b 100644
--- a/arch/arm/mach-pxa/poodle.c
+++ b/arch/arm/mach-pxa/poodle.c
@@ -463,7 +463,6 @@
 	sharpsl_save_param();
 	mi->nr_banks=1;
 	mi->bank[0].start = 0xa0000000;
-	mi->bank[0].node = 0;
 	mi->bank[0].size = (32*1024*1024);
 }
 
diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c
index c1048a3..51756c7 100644
--- a/arch/arm/mach-pxa/spitz.c
+++ b/arch/arm/mach-pxa/spitz.c
@@ -847,7 +847,6 @@
 	sharpsl_save_param();
 	mi->nr_banks = 1;
 	mi->bank[0].start = 0xa0000000;
-	mi->bank[0].node = 0;
 	mi->bank[0].size = (64*1024*1024);
 }
 
diff --git a/arch/arm/mach-pxa/tosa.c b/arch/arm/mach-pxa/tosa.c
index 7512b82..83cc3a1 100644
--- a/arch/arm/mach-pxa/tosa.c
+++ b/arch/arm/mach-pxa/tosa.c
@@ -948,7 +948,6 @@
 	sharpsl_save_param();
 	mi->nr_banks=1;
 	mi->bank[0].start = 0xa0000000;
-	mi->bank[0].node = 0;
 	mi->bank[0].size = (64*1024*1024);
 }