[U-Boot] efi: fix memory calculation overflow on 32-bit systems

[Patrick Wildt]

Hi,

There are Cubox-i machines out there with nearly 4 GiB of RAM.  The
RAM starts at 0x10000000 with a size of 0xf0000000.  Thus the end
of RAM is at 0x100000000.  This overflows a 32-bit integer, which
should be fine since in the EFI memory code the variables used are
all 64-bit with a fixed size.  Unfortunately EFI_PAGE_MASK, which is
used in the EFI memory code to remove the lower bits, is based on
the EFI_PAGE_SIZE macro which, uses 1UL with a shift.  This means
the resulting mask is UL, which is only 32-bit on ARMv7.  Use ULL to
make sure that even on 32-bit platforms we use a 64-bit long mask.
Without this there will be no memory available in the EFI memory map
and bootefi will fail allocating pages.

Best regards,
Patrick

diff --git a/include/efi.h b/include/efi.h
index d98441ab19d..3c9d20f8c0b 100644
--- a/include/efi.h
+++ b/include/efi.h
@@ -190,7 +190,7 @@ enum efi_mem_type {
 #define EFI_MEM_DESC_VERSION	1
 
 #define EFI_PAGE_SHIFT		12
-#define EFI_PAGE_SIZE		(1UL << EFI_PAGE_SHIFT)
+#define EFI_PAGE_SIZE		(1ULL << EFI_PAGE_SHIFT)
 #define EFI_PAGE_MASK		(EFI_PAGE_SIZE - 1)
 
 struct efi_mem_desc {