diff options
| author | Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> | 2015-11-24 13:09:53 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-12-01 10:45:51 -0800 |
| commit | 526a240f6145fa54658a4d56327f3e053ac73c48 (patch) | |
| tree | 306be445ffa1d42c56f3f9a440a5a598eb387bd1 /drivers/usb/host/xhci-rcar.c | |
| parent | 82487b714858d99feff600a096177675481a4935 (diff) | |
usb: host: xhci-plat: add support for the R-Car H3 xHCI controllers
The R-Car H3 has two xHCI controllers. This SoC is compatible with
R-Car Gen2 SoCs, however this SoC doesn't need some specific registers
setting, and need a new firmware.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/xhci-rcar.c')
| -rw-r--r-- | drivers/usb/host/xhci-rcar.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci-rcar.c b/drivers/usb/host/xhci-rcar.c index 010a24fdaa59..623100e9385e 100644 --- a/drivers/usb/host/xhci-rcar.c +++ b/drivers/usb/host/xhci-rcar.c @@ -17,7 +17,14 @@ #include "xhci-plat.h" #include "xhci-rcar.h" +/* +* - The V2 firmware is possible to use on R-Car Gen2. However, the V2 causes +* performance degradation. So, this driver continues to use the V1 if R-Car +* Gen2. +* - The V1 firmware is impossible to use on R-Car Gen3. +*/ MODULE_FIRMWARE(XHCI_RCAR_FIRMWARE_NAME_V1); +MODULE_FIRMWARE(XHCI_RCAR_FIRMWARE_NAME_V2); /*** Register Offset ***/ #define RCAR_USB3_INT_ENA 0x224 /* Interrupt Enable */ |