From 95ab5784bfc2d1a431d1a95b215893c2d808f7e8 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Pali=20Roh=C3=A1r?= Date: Thu, 25 Nov 2021 11:34:37 +0100 Subject: [PATCH] pci: When disabling pref MEM set all base bits MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit 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(-) diff --git a/drivers/pci/pci_auto.c b/drivers/pci/pci_auto.c index 6e5ed194f2..c0acf33139 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); -- 2.39.5