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path: root/drivers/mtd/nand/orion_nand.c
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Diffstat (limited to 'drivers/mtd/nand/orion_nand.c')
-rw-r--r--drivers/mtd/nand/orion_nand.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/mtd/nand/orion_nand.c b/drivers/mtd/nand/orion_nand.c
index f59c07427af..d60fc5719fe 100644
--- 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;
}