Set the DMA mask such that all descriptors stay in the
lower 4GB of memory.
Signed-off-by: Steven J. Hill <steven.hill@xxxxxxxxxx>
Acked-by: David Daney <david.daney@xxxxxxxxxx>
---
arch/mips/cavium-octeon/octeon-platform.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/arch/mips/cavium-octeon/octeon-platform.c b/arch/mips/cavium-octeon/octeon-platform.c
index 7aeafed..c9359fd 100644
--- a/arch/mips/cavium-octeon/octeon-platform.c
+++ b/arch/mips/cavium-octeon/octeon-platform.c
@@ -311,7 +311,11 @@ static struct usb_ehci_pdata octeon_ehci_pdata = {
#ifdef __BIG_ENDIAN
.big_endian_mmio = 1,
#endif
- .dma_mask_64 = 1,
+ /*
+ * We can DMA from anywhere. But the descriptors must be in
+ * the lower 4GB.
+ */
+ .dma_mask_64 = 0,
.power_on = octeon_ehci_power_on,
.power_off = octeon_ehci_power_off,
};
--
1.9.1
