AMD Northbridge LX: rename get_systop() to get_top_of_ram()

Change-Id: I6126d575b8289f76b38858304836e3037200bcdb
Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-on: http://review.coreboot.org/3367
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>

src/northbridge/amd/lx/northbridge.c

@@ -382,7 +382,7 @@ static void pci_domain_set_resources(device_t dev)
 
 	mc_dev = dev->link_list->children;
 	if (mc_dev) {
-		tomk = get_systop() / 1024;
+		tomk = get_top_of_ram() / 1024;
 		/* Report the memory regions
 		   All memory up to systop except 0xa0000-0xbffff */
 		idx = 10;

src/northbridge/amd/lx/northbridge.h

@@ -28,7 +28,7 @@ int sizeram(void);
 
 /* northbridgeinit.c */
 void northbridge_init_early(void);
-uint32_t get_systop(void);
+uint32_t get_top_of_ram(void);
 
 /* pll_reset.c */
 unsigned int GeodeLinkSpeed(void);

src/northbridge/amd/lx/northbridgeinit.c

@@ -713,7 +713,7 @@ static void setup_lx_cache(void)
 	wbinvd();
 }
 
-uint32_t get_systop(void)
+uint32_t get_top_of_ram(void)
 {
 	struct gliutable *gl = 0;
 	uint32_t systop;