diff options
| author | Pawel Laszczak <pawell@cadence.com> | 2020-09-15 14:45:43 +0300 |
|---|---|---|
| committer | Felipe Balbi <balbi@kernel.org> | 2020-10-02 09:57:39 +0300 |
| commit | 2eae2dfd581420f94d6041dddc7a88d7ae9ce2ff (patch) | |
| tree | 01230e0fa5c5bdea716d0b7eab188d3395fb292e /drivers/usb/cdns3/core.h | |
| parent | 5261e48f9a705bf65e3d202eb44dc2e270911684 (diff) | |
usb: cdns3: Enable workaround for USB2.0 PHY Rx compliance test PHY lockup
USB2.0 PHY hangs in Rx Compliance test when the incoming packet
amplitude is varied below and above the Squelch Level of
Receiver during the active packet multiple times.
Version 1 of the controller allows PHY to be reset when RX fail condition
is detected to work around the above issue. This feature is
disabled by default and needs to be enabled using a bit from
the newly added PHYRST_CFG register. This patch enables the workaround.
There is no way to know controller version before device controller
is started and the workaround needs to be applied for both host and
device modes, so we rely on a DT property do decide when to
apply the workaround.
Signed-off-by: Pawel Laszczak <pawell@cadence.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Diffstat (limited to 'drivers/usb/cdns3/core.h')
| -rw-r--r-- | drivers/usb/cdns3/core.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/usb/cdns3/core.h b/drivers/usb/cdns3/core.h index 1b1707796db2..8a40d53d5ede 100644 --- a/drivers/usb/cdns3/core.h +++ b/drivers/usb/cdns3/core.h @@ -87,6 +87,7 @@ struct cdns3 { #define CDNS3_CONTROLLER_V0 0 #define CDNS3_CONTROLLER_V1 1 u32 version; + bool phyrst_a_enable; int otg_irq; int dev_irq; |