diff options
| author | Pali Rohár | 2021-11-25 11:34:37 +0100 |
|---|---|---|
| committer | Tom Rini | 2022-01-12 14:21:24 -0500 |
| commit | 95ab5784bfc2d1a431d1a95b215893c2d808f7e8 (patch) | |
| tree | 69d5931d228a7152ec965bf19b255e67e2ff262f /drivers | |
| parent | 06f25bd2a907fa543d69757da4e3c752b7103e54 (diff) | |
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 <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/pci/pci_auto.c | 2 |
1 files changed, 1 insertions, 1 deletions
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); |