ARC: mem init spring cleaning - No functional changes

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>

diff --git a/arch/arc/mm/init.c b/arch/arc/mm/init.c
index 523412369f70a813e0d250013639cae6cb4c1447..d44eedd8c3220e6923b26ea8d10fc6f0f84005f3 100644 (file)
--- a/arch/arc/mm/init.c
+++ b/arch/arc/mm/init.c
@@ -71,7 +71,7 @@ early_param("initrd", early_initrd);
  */
 void __init setup_arch_memory(void)
 {
-       unsigned long zones_size[MAX_NR_ZONES] = { 0, 0 };
+       unsigned long zones_size[MAX_NR_ZONES];
        unsigned long end_mem = CONFIG_LINUX_LINK_BASE + arc_mem_sz;
 
        init_mm.start_code = (unsigned long)_text;
@@ -90,7 +90,7 @@ void __init setup_arch_memory(void)
        /*------------- externs in mm need setting up ---------------*/
 
        /* first page of system - kernel .vector starts here */
-       min_low_pfn = PFN_DOWN(CONFIG_LINUX_LINK_BASE);
+       min_low_pfn = ARCH_PFN_OFFSET;
 
        /* Last usable page of low mem (no HIGHMEM yet for ARC port) */
        max_low_pfn = max_pfn = PFN_DOWN(end_mem);
@@ -111,7 +111,7 @@ void __init setup_arch_memory(void)
 
        /*-------------- node setup --------------------------------*/
        memset(zones_size, 0, sizeof(zones_size));
-       zones_size[ZONE_NORMAL] = max_low_pfn - min_low_pfn;
+       zones_size[ZONE_NORMAL] = max_mapnr;
 
        /*
         * We can't use the helper free_area_init(zones[]) because it uses
@@ -123,6 +123,8 @@ void __init setup_arch_memory(void)
                            zones_size,         /* num pages per zone */
                            min_low_pfn,        /* first pfn of node */
                            NULL);              /* NO holes */
+
+       high_memory = (void *)end_mem;
 }
 
 /*
@@ -133,7 +135,6 @@ void __init setup_arch_memory(void)
  */
 void __init mem_init(void)
 {
-       high_memory = (void *)(CONFIG_LINUX_LINK_BASE + arc_mem_sz);
        free_all_bootmem();
        mem_init_print_info(NULL);
 }