From: Pali Rohár Date: Thu, 25 Nov 2021 10:30:58 +0000 (+0100) Subject: pci: Fix register for determining type of IO base address X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=f2094143c5367f38c74d4233a65afb07a25a8ace;p=u-boot.git pci: Fix register for determining type of IO base address Function dm_pciauto_prescan_setup_bridge() configures base address registers, therefore it should read type of IO from base address registers (and not from limit address registers). Note that base and limit address registers should have same type, so this change is just usage correction and has no functional change on correctly working hardware. Fixes: 8e85f36a8fab ("pci: Fix configuring io/memory base and limit registers of PCI bridges") Signed-off-by: Pali Rohár Reviewed-by: Stefan Roese --- diff --git a/drivers/pci/pci_auto.c b/drivers/pci/pci_auto.c index 5af4ee6e56..7e6ee54be0 100644 --- a/drivers/pci/pci_auto.c +++ b/drivers/pci/pci_auto.c @@ -197,7 +197,7 @@ void dm_pciauto_prescan_setup_bridge(struct udevice *dev, int sub_bus) dm_pci_read_config16(dev, PCI_COMMAND, &cmdstat); dm_pci_read_config16(dev, PCI_PREF_MEMORY_BASE, &prefechable_64); prefechable_64 &= PCI_PREF_RANGE_TYPE_MASK; - dm_pci_read_config8(dev, PCI_IO_LIMIT, &io_32); + dm_pci_read_config8(dev, PCI_IO_BASE, &io_32); io_32 &= PCI_IO_RANGE_TYPE_MASK; /* Configure bus number registers */