[PATCH v1 10/10] net: mvpp2: add explicit sgmii-2500 support

[Ramon Fried]

On Tue, Apr 27, 2021 at 4:29 PM Stefan Roese <sr at denx.de> wrote:
>
> From: Marcin Wojtas <mw at semihalf.com>
>
> Until now the mvpp2 driver used an extra 'phy-speed'
> DT property in order to differentiate between the
> SGMII and SGMII @2.5GHz. As there is a dedicated
> PHY_INTERFACE_MODE_SGMII_2500 flag to mark the latter
> start using it and drop the custom flag.
>
> Signed-off-by: Marcin Wojtas <mw at semihalf.com>
> Reviewed-by: Stefan Chulski <stefanc at marvell.com>
> Reviewed-by: Nadav Haklai <nadavh at marvell.com>
> Tested-by: Nadav Haklai <nadavh at marvell.com>
> Signed-off-by: Stefan Roese <sr at denx.de>
> ---
>
>  drivers/net/mvpp2.c | 28 ++++++++++++----------------
>  1 file changed, 12 insertions(+), 16 deletions(-)
>
> diff --git a/drivers/net/mvpp2.c b/drivers/net/mvpp2.c
> index c5bfe41281d6..4c0a7b0a9f5c 100644
> --- a/drivers/net/mvpp2.c
> +++ b/drivers/net/mvpp2.c
> @@ -976,8 +976,6 @@ struct mvpp2_port {
>         unsigned int duplex;
>         unsigned int speed;
>
> -       unsigned int phy_speed;         /* SGMII 1Gbps vs 2.5Gbps */
> -
>         struct mvpp2_bm_pool *pool_long;
>         struct mvpp2_bm_pool *pool_short;
>
> @@ -2875,6 +2873,7 @@ static void mvpp2_port_mii_set(struct mvpp2_port *port)
>
>         switch (port->phy_interface) {
>         case PHY_INTERFACE_MODE_SGMII:
> +       case PHY_INTERFACE_MODE_SGMII_2500:
>                 val |= MVPP2_GMAC_INBAND_AN_MASK;
>                 break;
>         case PHY_INTERFACE_MODE_1000BASEX:
> @@ -2942,6 +2941,7 @@ static void mvpp2_port_loopback_set(struct mvpp2_port *port)
>                 val &= ~MVPP2_GMAC_GMII_LB_EN_MASK;
>
>         if (port->phy_interface == PHY_INTERFACE_MODE_SGMII ||
> +           port->phy_interface == PHY_INTERFACE_MODE_SGMII_2500 ||
>             port->phy_interface == PHY_INTERFACE_MODE_1000BASEX ||
>             port->phy_interface == PHY_INTERFACE_MODE_2500BASEX)
>                 val |= MVPP2_GMAC_PCS_LB_EN_MASK;
> @@ -3239,12 +3239,11 @@ static int gop_gmac_mode_cfg(struct mvpp2_port *port)
>         /* Set TX FIFO thresholds */
>         switch (port->phy_interface) {
>         case PHY_INTERFACE_MODE_SGMII:
> -               if (port->phy_speed == 2500)
> -                       gop_gmac_sgmii2_5_cfg(port);
> -               else
> -                       gop_gmac_sgmii_cfg(port);
> +               gop_gmac_sgmii_cfg(port);
> +               break;
> +       case PHY_INTERFACE_MODE_SGMII_2500:
> +               gop_gmac_sgmii2_5_cfg(port);
>                 break;
> -
>         case PHY_INTERFACE_MODE_1000BASEX:
>                 gop_gmac_1000basex_cfg(port);
>                 break;
> @@ -3425,6 +3424,7 @@ static int gop_port_init(struct mvpp2_port *port)
>                 break;
>
>         case PHY_INTERFACE_MODE_SGMII:
> +       case PHY_INTERFACE_MODE_SGMII_2500:
>         case PHY_INTERFACE_MODE_1000BASEX:
>         case PHY_INTERFACE_MODE_2500BASEX:
>                 /* configure PCS */
> @@ -3484,6 +3484,7 @@ static void gop_port_enable(struct mvpp2_port *port, int enable)
>         case PHY_INTERFACE_MODE_RGMII:
>         case PHY_INTERFACE_MODE_RGMII_ID:
>         case PHY_INTERFACE_MODE_SGMII:
> +       case PHY_INTERFACE_MODE_SGMII_2500:
>         case PHY_INTERFACE_MODE_1000BASEX:
>         case PHY_INTERFACE_MODE_2500BASEX:
>                 if (enable)
> @@ -3520,6 +3521,7 @@ static u32 mvpp2_netc_cfg_create(int gop_id, phy_interface_t phy_type)
>
>         if (gop_id == 2) {
>                 if (phy_type == PHY_INTERFACE_MODE_SGMII ||
> +                   phy_type == PHY_INTERFACE_MODE_SGMII_2500 ||
>                     phy_type == PHY_INTERFACE_MODE_1000BASEX ||
>                     phy_type == PHY_INTERFACE_MODE_2500BASEX)
>                         val |= MV_NETC_GE_MAC2_SGMII;
> @@ -3530,6 +3532,7 @@ static u32 mvpp2_netc_cfg_create(int gop_id, phy_interface_t phy_type)
>
>         if (gop_id == 3) {
>                 if (phy_type == PHY_INTERFACE_MODE_SGMII ||
> +                   phy_type == PHY_INTERFACE_MODE_SGMII_2500 ||
>                     phy_type == PHY_INTERFACE_MODE_1000BASEX ||
>                     phy_type == PHY_INTERFACE_MODE_2500BASEX)
>                         val |= MV_NETC_GE_MAC3_SGMII;
> @@ -4528,6 +4531,7 @@ static void mvpp2_start_dev(struct mvpp2_port *port)
>         case PHY_INTERFACE_MODE_RGMII:
>         case PHY_INTERFACE_MODE_RGMII_ID:
>         case PHY_INTERFACE_MODE_SGMII:
> +       case PHY_INTERFACE_MODE_SGMII_2500:
>         case PHY_INTERFACE_MODE_1000BASEX:
>         case PHY_INTERFACE_MODE_2500BASEX:
>                 mvpp2_gmac_max_rx_size_set(port);
> @@ -4838,15 +4842,6 @@ static int phy_info_parse(struct udevice *dev, struct mvpp2_port *port)
>                              &port->phy_tx_disable_gpio, GPIOD_IS_OUT);
>  #endif
>
> -       /*
> -        * ToDo:
> -        * Not sure if this DT property "phy-speed" will get accepted, so
> -        * this might change later
> -        */
> -       /* Get phy-speed for SGMII 2.5Gbps vs 1Gbps setup */
> -       port->phy_speed = fdtdec_get_int(gd->fdt_blob, port_node,
> -                                        "phy-speed", 1000);
> -
>         port->id = id;
>         if (port->priv->hw_version == MVPP21)
>                 port->first_rxq = port->id * rxq_number;
> @@ -5275,6 +5270,7 @@ static int mvpp2_start(struct udevice *dev)
>         case PHY_INTERFACE_MODE_RGMII:
>         case PHY_INTERFACE_MODE_RGMII_ID:
>         case PHY_INTERFACE_MODE_SGMII:
> +       case PHY_INTERFACE_MODE_SGMII_2500:
>         case PHY_INTERFACE_MODE_1000BASEX:
>         case PHY_INTERFACE_MODE_2500BASEX:
>                 mvpp2_port_power_up(port);
> --
> 2.31.1
>
Reviewed-by: Ramon Fried <rfried.dev at gmail.com>