Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

[karo-tx-linux.git] / drivers / mtd / nand / orion_nand.c

diff --git a/drivers/mtd/nand/orion_nand.c b/drivers/mtd/nand/orion_nand.c
index f16050c61c5ca31430bad62eb4c50cb885913233..f4444fe960a1a5553b56e7120d2dbb0d102c14d1 100644 (file)
--- a/drivers/mtd/nand/orion_nand.c
+++ b/drivers/mtd/nand/orion_nand.c
@@ -60,7 +60,13 @@ static void orion_nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
        }
        buf64 = (uint64_t *)buf;
        while (i < len/8) {
-               uint64_t x;
+               /*
+                * Since GCC has no proper constraint (PR 43518)
+                * force x variable to r2/r3 registers as ldrd instruction
+                * requires first register to be even.
+                */
+               register uint64_t x asm ("r2");
+
                asm volatile ("ldrd\t%0, [%1]" : "=&r" (x) : "r" (io_base));
                buf64[i++] = x;
        }