diff options
Diffstat (limited to 'drivers/pci/controller/dwc/pci-keystone.c')
| -rw-r--r-- | drivers/pci/controller/dwc/pci-keystone.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/pci/controller/dwc/pci-keystone.c b/drivers/pci/controller/dwc/pci-keystone.c index 20fa4dadb82a..278d2dba1db0 100644 --- a/drivers/pci/controller/dwc/pci-keystone.c +++ b/drivers/pci/controller/dwc/pci-keystone.c @@ -933,6 +933,18 @@ static const struct pci_epc_features ks_pcie_am654_epc_features = { DWC_EPC_COMMON_FEATURES, .msi_capable = true, .msix_capable = true, + /* + * TODO: This driver is the only DWC glue driver that had BAR_RESERVED + * BARs, but did not call dw_pcie_ep_reset_bar() for the reserved BARs. + * + * To not change the existing behavior, these BARs were not migrated to + * BAR_DISABLED. If this driver wants the BAR_RESERVED BARs to be + * disabled, it should migrate them to BAR_DISABLED. + * + * If they actually should be enabled, then the driver must also define + * what is behind these reserved BARs, see the definition of struct + * pci_epc_bar_rsvd_region. + */ .bar[BAR_0] = { .type = BAR_RESERVED, }, .bar[BAR_1] = { .type = BAR_RESERVED, }, .bar[BAR_2] = { .type = BAR_RESIZABLE, }, |