diff options
| author | Biju Das <biju.das.jz@bp.renesas.com> | 2021-08-25 10:01:52 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-08-25 13:18:17 +0300 |
| commit | eb4fd127448b173df15b4e92ace016467b2fc441 (patch) | |
| tree | 9373fdd3be318a4bc6ada03e13b897a5b824d6d3 /drivers/net | |
| parent | 80f35a0df0866ad0eb88575bbdeba6c81123c20b (diff) | |
| download | linux-eb4fd127448b173df15b4e92ace016467b2fc441.tar.xz | |
ravb: Factorise ravb_dmac_init function
The DMAC IP on the R-Car AVB module has different initialization
parameters for RCR, TGC, TCCR, RIC0, RIC2, and TIC compared to
DMAC IP on the RZ/G2L Gigabit Ethernet module. Factorise the
ravb_dmac_init function to support the later SoC.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/renesas/ravb.h | 1 | ||||
| -rw-r--r-- | drivers/net/ethernet/renesas/ravb_main.c | 52 |
2 files changed, 32 insertions, 21 deletions
diff --git a/drivers/net/ethernet/renesas/ravb.h b/drivers/net/ethernet/renesas/ravb.h index 9e284238ed83..24a3abd00053 100644 --- a/drivers/net/ethernet/renesas/ravb.h +++ b/drivers/net/ethernet/renesas/ravb.h @@ -986,6 +986,7 @@ struct ravb_hw_info { bool (*receive)(struct net_device *ndev, int *quota, int q); void (*set_rate)(struct net_device *ndev); int (*set_rx_csum_feature)(struct net_device *ndev, netdev_features_t features); + void (*dmac_init)(struct net_device *ndev); const char (*gstrings_stats)[ETH_GSTRING_LEN]; size_t gstrings_size; netdev_features_t net_hw_features; diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c index 1789309c4c03..391e7927ea08 100644 --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c @@ -452,30 +452,10 @@ static void ravb_emac_init(struct net_device *ndev) ravb_write(ndev, ECSIPR_ICDIP | ECSIPR_MPDIP | ECSIPR_LCHNGIP, ECSIPR); } -/* Device init function for Ethernet AVB */ -static int ravb_dmac_init(struct net_device *ndev) +static void ravb_rcar_dmac_init(struct net_device *ndev) { struct ravb_private *priv = netdev_priv(ndev); const struct ravb_hw_info *info = priv->info; - int error; - - /* Set CONFIG mode */ - error = ravb_config(ndev); - if (error) - return error; - - error = ravb_ring_init(ndev, RAVB_BE); - if (error) - return error; - error = ravb_ring_init(ndev, RAVB_NC); - if (error) { - ravb_ring_free(ndev, RAVB_BE); - return error; - } - - /* Descriptor format */ - ravb_ring_format(ndev, RAVB_BE); - ravb_ring_format(ndev, RAVB_NC); /* Set AVB RX */ ravb_write(ndev, @@ -502,6 +482,34 @@ static int ravb_dmac_init(struct net_device *ndev) ravb_write(ndev, RIC2_QFE0 | RIC2_QFE1 | RIC2_RFFE, RIC2); /* Frame transmitted, timestamp FIFO updated */ ravb_write(ndev, TIC_FTE0 | TIC_FTE1 | TIC_TFUE, TIC); +} + +/* Device init function for Ethernet AVB */ +static int ravb_dmac_init(struct net_device *ndev) +{ + struct ravb_private *priv = netdev_priv(ndev); + const struct ravb_hw_info *info = priv->info; + int error; + + /* Set CONFIG mode */ + error = ravb_config(ndev); + if (error) + return error; + + error = ravb_ring_init(ndev, RAVB_BE); + if (error) + return error; + error = ravb_ring_init(ndev, RAVB_NC); + if (error) { + ravb_ring_free(ndev, RAVB_BE); + return error; + } + + /* Descriptor format */ + ravb_ring_format(ndev, RAVB_BE); + ravb_ring_format(ndev, RAVB_NC); + + info->dmac_init(ndev); /* Setting the control will start the AVB-DMAC process. */ ravb_modify(ndev, CCC, CCC_OPC, CCC_OPC_OPERATION); @@ -1990,6 +1998,7 @@ static const struct ravb_hw_info ravb_gen3_hw_info = { .receive = ravb_rcar_rx, .set_rate = ravb_set_rate, .set_rx_csum_feature = ravb_set_features_rx_csum, + .dmac_init = ravb_rcar_dmac_init, .gstrings_stats = ravb_gstrings_stats, .gstrings_size = sizeof(ravb_gstrings_stats), .net_hw_features = NETIF_F_RXCSUM, @@ -2009,6 +2018,7 @@ static const struct ravb_hw_info ravb_gen2_hw_info = { .receive = ravb_rcar_rx, .set_rate = ravb_set_rate, .set_rx_csum_feature = ravb_set_features_rx_csum, + .dmac_init = ravb_rcar_dmac_init, .gstrings_stats = ravb_gstrings_stats, .gstrings_size = sizeof(ravb_gstrings_stats), .net_hw_features = NETIF_F_RXCSUM, |