diff options
| author | Pawel Laszczak <pawell@cadence.com> | 2026-03-31 11:19:11 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-04-02 10:05:53 +0300 |
| commit | 7b7f2dd913829e06705035dfc41ca25fa6ec68d3 (patch) | |
| tree | e47f78f5d1ddf0ed72e5d5d400e8a173abff2a7f /include/linux | |
| parent | 3c7df5079cfc6133d01ae144ae76a980276cc726 (diff) | |
| download | linux-7b7f2dd913829e06705035dfc41ca25fa6ec68d3.tar.xz | |
usb: cdnsp: Add support for device-only configuration
This patch introduces support for operating the Cadence USBSSP (cdnsp)
controller in a peripheral-only mode, bypassing the Dual-Role Device (DRD)
logic.
The change in BAR indexing (from BAR 2 to BAR 1) is a direct
consequence of switching from 64-bit to 32-bit addressing in the
Peripheral-only configuration.
Tested on PCI platform with Device-only configuration. Platform-side
changes are included to support the PCI glue layer's property injection.
Signed-off-by: Pawel Laszczak <pawell@cadence.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com> # pci_ids.h
Link: https://patch.msgid.link/20260331-device_only-v1-1-00378b80365c@cadence.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/pci_ids.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h index 406abf629be2..a931fb201402 100644 --- a/include/linux/pci_ids.h +++ b/include/linux/pci_ids.h @@ -2424,6 +2424,7 @@ #define PCI_DEVICE_ID_CDNS_USBSS 0x0100 #define PCI_DEVICE_ID_CDNS_USB 0x0120 #define PCI_DEVICE_ID_CDNS_USBSSP 0x0200 +#define PCI_DEVICE_ID_CDNS_UDC_USBSSP 0x0400 #define PCI_VENDOR_ID_ARECA 0x17d3 #define PCI_DEVICE_ID_ARECA_1110 0x1110 |