powerpc/fsl-pci: Set relaxed ordering on prefetchable ranges

[safe/jmp/linux-2.6] / arch / powerpc / sysdev / fsl_pci.c

diff --git a/arch/powerpc/sysdev/fsl_pci.c b/arch/powerpc/sysdev/fsl_pci.c
index 44bc903..9817f63 100644 (file)
--- a/arch/powerpc/sysdev/fsl_pci.c
+++ b/arch/powerpc/sysdev/fsl_pci.c
@@ -41,6 +41,9 @@ static int __init setup_one_atmu(struct ccsr_pci __iomem *pci,
        pr_debug("PCI MEM resource start 0x%016llx, size 0x%016llx.\n",
                (u64)res->start, (u64)size);
 
+       if (res->flags & IORESOURCE_PREFETCH)
+               flags |= 0x10000000; /* enable relaxed ordering */
+
        for (i = 0; size > 0; i++) {
                unsigned int bits = min(__ilog2(size),
                                        __ffs(pci_addr | phys_addr));