jetson-tk1 has 2 GB of RAM at 0x80000000, causing gd->ram_top to be zero.
Handle this by either avoiding ram_top or by using the same type as
ram_top to reverse the overflow effect.

Cc: Alexander Graf <ag...@suse.de>
Signed-off-by: Andreas Färber <afaer...@suse.de>
---
 lib/efi_loader/efi_memory.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/lib/efi_loader/efi_memory.c b/lib/efi_loader/efi_memory.c
index 138736f..82003d7 100644
--- a/lib/efi_loader/efi_memory.c
+++ b/lib/efi_loader/efi_memory.c
@@ -225,7 +225,7 @@ efi_status_t efi_allocate_pages(int type, int memory_type,
        switch (type) {
        case 0:
                /* Any page */
-               addr = efi_find_free_memory(len, gd->ram_top);
+               addr = efi_find_free_memory(len, gd->start_addr_sp);
                if (!addr) {
                        r = EFI_NOT_FOUND;
                        break;
@@ -325,9 +325,9 @@ efi_status_t efi_get_memory_map(unsigned long 
*memory_map_size,
 
 int efi_memory_init(void)
 {
-       uint64_t runtime_start, runtime_end, runtime_pages;
-       uint64_t uboot_start, uboot_pages;
-       uint64_t uboot_stack_size = 16 * 1024 * 1024;
+       unsigned long runtime_start, runtime_end, runtime_pages;
+       unsigned long uboot_start, uboot_pages;
+       unsigned long uboot_stack_size = 16 * 1024 * 1024;
        int i;
 
        /* Add RAM */
-- 
2.6.6

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