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authorBharat Bhushan <r65777@freescale.com>2012-06-05 03:55:04 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2012-07-03 14:14:49 +1000
commita5cb82da786f610f7e84a0a8bcf9e0218c363040 (patch)
tree3c5f1d32541fc6e438c9ee3932eaa1119f58fa9d /arch/powerpc/platforms/44x
parentcf8fb5533f35709ba7e31560264b565a9c7a090f (diff)
powerpc: Fix assmption of end_of_DRAM() returns end address
memblock_end_of_DRAM() returns end_address + 1, not end address. While some code assumes that it returns end address. Signed-off-by: Bharat Bhushan <bharat.bhushan@freescale.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/platforms/44x')
-rw-r--r--arch/powerpc/platforms/44x/currituck.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/platforms/44x/currituck.c b/arch/powerpc/platforms/44x/currituck.c
index 583e67fee37..9f6c33d63a4 100644
--- a/arch/powerpc/platforms/44x/currituck.c
+++ b/arch/powerpc/platforms/44x/currituck.c
@@ -160,7 +160,7 @@ static void __init ppc47x_setup_arch(void)
/* No need to check the DMA config as we /know/ our windows are all of
* RAM. Lets hope that doesn't change */
#ifdef CONFIG_SWIOTLB
- if (memblock_end_of_DRAM() > 0xffffffff) {
+ if ((memblock_end_of_DRAM() - 1) > 0xffffffff) {
ppc_swiotlb_enable = 1;
set_pci_dma_ops(&swiotlb_dma_ops);
ppc_md.pci_dma_dev_setup = pci_dma_dev_setup_swiotlb;