diff options
Diffstat (limited to 'drivers/net/can/ifi_canfd/ifi_canfd.c')
| -rw-r--r-- | drivers/net/can/ifi_canfd/ifi_canfd.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/net/can/ifi_canfd/ifi_canfd.c b/drivers/net/can/ifi_canfd/ifi_canfd.c index 2d1d22eec750..368bb0710d8f 100644 --- a/drivers/net/can/ifi_canfd/ifi_canfd.c +++ b/drivers/net/can/ifi_canfd/ifi_canfd.c @@ -81,6 +81,10 @@ #define IFI_CANFD_TIME_SET_TIMEA_4_12_6_6 BIT(15) #define IFI_CANFD_TDELAY 0x1c +#define IFI_CANFD_TDELAY_DEFAULT 0xb +#define IFI_CANFD_TDELAY_MASK 0x3fff +#define IFI_CANFD_TDELAY_ABS BIT(14) +#define IFI_CANFD_TDELAY_EN BIT(15) #define IFI_CANFD_ERROR 0x20 #define IFI_CANFD_ERROR_TX_OFFSET 0 @@ -641,7 +645,7 @@ static void ifi_canfd_set_bittiming(struct net_device *ndev) struct ifi_canfd_priv *priv = netdev_priv(ndev); const struct can_bittiming *bt = &priv->can.bittiming; const struct can_bittiming *dbt = &priv->can.data_bittiming; - u16 brp, sjw, tseg1, tseg2; + u16 brp, sjw, tseg1, tseg2, tdc; /* Configure bit timing */ brp = bt->brp - 2; @@ -664,6 +668,11 @@ static void ifi_canfd_set_bittiming(struct net_device *ndev) (brp << IFI_CANFD_TIME_PRESCALE_OFF) | (sjw << IFI_CANFD_TIME_SJW_OFF_7_9_8_8), priv->base + IFI_CANFD_FTIME); + + /* Configure transmitter delay */ + tdc = (dbt->brp * (dbt->phase_seg1 + 1)) & IFI_CANFD_TDELAY_MASK; + writel(IFI_CANFD_TDELAY_EN | IFI_CANFD_TDELAY_ABS | tdc, + priv->base + IFI_CANFD_TDELAY); } static void ifi_canfd_set_filter(struct net_device *ndev, const u32 id, |