diff options
| -rw-r--r-- | drivers/net/can/rcar/rcar_canfd.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/net/can/rcar/rcar_canfd.c b/drivers/net/can/rcar/rcar_canfd.c index fded4da50103..558291a36043 100644 --- a/drivers/net/can/rcar/rcar_canfd.c +++ b/drivers/net/can/rcar/rcar_canfd.c @@ -503,6 +503,7 @@ struct rcar_canfd_global; struct rcar_canfd_hw_info { + u8 rnc_field_width; u8 max_channels; u8 postdiv; /* hardware features */ @@ -579,18 +580,21 @@ static const struct can_bittiming_const rcar_canfd_bittiming_const = { }; static const struct rcar_canfd_hw_info rcar_gen3_hw_info = { + .rnc_field_width = 8, .max_channels = 2, .postdiv = 2, .shared_global_irqs = 1, }; static const struct rcar_canfd_hw_info rcar_gen4_hw_info = { + .rnc_field_width = 16, .max_channels = 8, .postdiv = 2, .shared_global_irqs = 1, }; static const struct rcar_canfd_hw_info rzg2l_hw_info = { + .rnc_field_width = 8, .max_channels = 2, .postdiv = 1, .multi_channel_irqs = 1, @@ -676,9 +680,10 @@ static void rcar_canfd_tx_failure_cleanup(struct net_device *ndev) static void rcar_canfd_setrnc(struct rcar_canfd_global *gpriv, unsigned int ch, unsigned int num_rules) { - unsigned int shift = reg_gen4(gpriv, 16, 24) - (ch & 1) * reg_gen4(gpriv, 16, 8); + unsigned int rnc_stride = 32 / gpriv->info->rnc_field_width; + unsigned int shift = 32 - (ch % rnc_stride + 1) * gpriv->info->rnc_field_width; + unsigned int w = ch / rnc_stride; u32 rnc = num_rules << shift; - unsigned int w = ch / 2; rcar_canfd_set_bit(gpriv->base, RCANFD_GAFLCFG(w), rnc); } |