From 95ab5784bfc2d1a431d1a95b215893c2d808f7e8 Mon Sep 17 00:00:00 2001 From: Pali Rohár Date: Thu, 25 Nov 2021 11:34:37 +0100 Subject: pci: When disabling pref MEM set all base bits 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 Reviewed-by: Stefan Roese --- drivers/pci/pci_auto.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/pci/pci_auto.c b/drivers/pci/pci_auto.c index 6e5ed194f24..c0acf331398 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); -- cgit v1.2.3