1 files changed, 1 insertions, 1 deletions

diff --git a/arch/powerpc/platforms/85xx/mpc85xx_mds.c b/arch/powerpc/platforms/85xx/mpc85xx_mds.c
index d208ebccb91c..8e4b094c553b 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_mds.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_mds.c
@@ -359,7 +359,7 @@ static void __init mpc85xx_mds_setup_arch(void)
         mpc85xx_mds_qe_init();
 
 #ifdef CONFIG_SWIOTLB
-        if (memblock_end_of_DRAM() > max) {
+        if ((memblock_end_of_DRAM() - 1) > max) {
                 ppc_swiotlb_enable = 1;
                 set_pci_dma_ops(&swiotlb_dma_ops);
                 ppc_md.pci_dma_dev_setup = pci_dma_dev_setup_swiotlb;