memblock: add memblock_start_of_DRAM()

[pandora-kernel.git] / mm / memblock.c

diff --git a/mm/memblock.c b/mm/memblock.c
index a0562d1..b7ed636 100644 (file)
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -626,6 +626,12 @@ phys_addr_t __init memblock_phys_mem_size(void)
        return memblock.memory_size;
 }
 
+/* lowest address */
+phys_addr_t __init_memblock memblock_start_of_DRAM(void)
+{
+       return memblock.memory.regions[0].base;
+}
+
 phys_addr_t __init_memblock memblock_end_of_DRAM(void)
 {
        int idx = memblock.memory.cnt - 1;
@@ -758,9 +764,9 @@ void __init memblock_analyze(void)
 
        /* Check marker in the unused last array entry */
        WARN_ON(memblock_memory_init_regions[INIT_MEMBLOCK_REGIONS].base
-               != (phys_addr_t)RED_INACTIVE);
+               != MEMBLOCK_INACTIVE);
        WARN_ON(memblock_reserved_init_regions[INIT_MEMBLOCK_REGIONS].base
-               != (phys_addr_t)RED_INACTIVE);
+               != MEMBLOCK_INACTIVE);
 
        memblock.memory_size = 0;
 
@@ -786,8 +792,8 @@ void __init memblock_init(void)
        memblock.reserved.max   = INIT_MEMBLOCK_REGIONS;
 
        /* Write a marker in the unused last array entry */
-       memblock.memory.regions[INIT_MEMBLOCK_REGIONS].base = (phys_addr_t)RED_INACTIVE;
-       memblock.reserved.regions[INIT_MEMBLOCK_REGIONS].base = (phys_addr_t)RED_INACTIVE;
+       memblock.memory.regions[INIT_MEMBLOCK_REGIONS].base = MEMBLOCK_INACTIVE;
+       memblock.reserved.regions[INIT_MEMBLOCK_REGIONS].base = MEMBLOCK_INACTIVE;
 
        /* Create a dummy zero size MEMBLOCK which will get coalesced away later.
         * This simplifies the memblock_add() code below...