[PATCH] pci: When disabling pref MEM set all base bits

[Pali Rohár]

It is common to set all base address bits to one and all limit address bits
to zero for disabling address forwarding. Forwarding is disabled when base
address is higher than limit address, so this change should not have any
effect.

Signed-off-by: Pali Rohár <pali at kernel.org>
---
 drivers/pci/pci_auto.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/pci_auto.c b/drivers/pci/pci_auto.c
index 6e5ed194f247..c0acf331398d 100644
--- a/drivers/pci/pci_auto.c
+++ b/drivers/pci/pci_auto.c
@@ -243,7 +243,7 @@ void dm_pciauto_prescan_setup_bridge(struct udevice *dev, int sub_bus)
 		cmdstat |= PCI_COMMAND_MEMORY;
 	} else {
 		/* We don't support prefetchable memory for now, so disable */
-		dm_pci_write_config16(dev, PCI_PREF_MEMORY_BASE, 0x1000 |
+		dm_pci_write_config16(dev, PCI_PREF_MEMORY_BASE, 0xfff0 |
 								prefechable_64);
 		dm_pci_write_config16(dev, PCI_PREF_MEMORY_LIMIT, 0x0 |
 								prefechable_64);
-- 
2.20.1