From: Pali Rohár Date: Thu, 25 Nov 2021 10:34:37 +0000 (+0100) Subject: pci: When disabling pref MEM set all base bits X-Git-Tag: v2022.07~235^2~12 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=95ab5784bfc2d1a431d1a95b215893c2d808f7e8;p=platform%2Fkernel%2Fu-boot.git 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 --- diff --git a/drivers/pci/pci_auto.c b/drivers/pci/pci_auto.c index 6e5ed19..c0acf33 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);