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Message-Id: <20171227221446.18459-4-antoine.tenart@free-electrons.com> Date: Wed, 27 Dec 2017 23:14:43 +0100 From: Antoine Tenart <antoine.tenart@...e-electrons.com> To: davem@...emloft.net, kishon@...com, andrew@...n.ch, jason@...edaemon.net, sebastian.hesselbarth@...il.com, gregory.clement@...e-electrons.com, linux@...linux.org.uk Cc: Antoine Tenart <antoine.tenart@...e-electrons.com>, mw@...ihalf.com, stefanc@...vell.com, ymarkman@...vell.com, thomas.petazzoni@...e-electrons.com, miquel.raynal@...e-electrons.com, nadavh@...vell.com, netdev@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org Subject: [PATCH net-next 3/6] net: mvpp2: 1000baseX support This patch adds the 1000Base-X PHY mode support in the Marvell PPv2 driver. 1000Base-X is quite close the SGMII and uses nearly the same code path. Signed-off-by: Antoine Tenart <antoine.tenart@...e-electrons.com> --- drivers/net/ethernet/marvell/mvpp2.c | 45 ++++++++++++++++++++++++++++-------- 1 file changed, 35 insertions(+), 10 deletions(-) diff --git a/drivers/net/ethernet/marvell/mvpp2.c b/drivers/net/ethernet/marvell/mvpp2.c index a19760736b71..094db9dd633f 100644 --- a/drivers/net/ethernet/marvell/mvpp2.c +++ b/drivers/net/ethernet/marvell/mvpp2.c @@ -4501,6 +4501,7 @@ static int mvpp22_gop_init(struct mvpp2_port *port) mvpp22_gop_init_rgmii(port); break; case PHY_INTERFACE_MODE_SGMII: + case PHY_INTERFACE_MODE_1000BASEX: mvpp22_gop_init_sgmii(port); break; case PHY_INTERFACE_MODE_10GKR: @@ -4538,7 +4539,8 @@ static void mvpp22_gop_unmask_irq(struct mvpp2_port *port) u32 val; if (phy_interface_mode_is_rgmii(port->phy_interface) || - port->phy_interface == PHY_INTERFACE_MODE_SGMII) { + port->phy_interface == PHY_INTERFACE_MODE_SGMII || + port->phy_interface == PHY_INTERFACE_MODE_1000BASEX) { /* Enable the GMAC link status irq for this port */ val = readl(port->base + MVPP22_GMAC_INT_SUM_MASK); val |= MVPP22_GMAC_INT_SUM_MASK_LINK_STAT; @@ -4568,7 +4570,8 @@ static void mvpp22_gop_mask_irq(struct mvpp2_port *port) } if (phy_interface_mode_is_rgmii(port->phy_interface) || - port->phy_interface == PHY_INTERFACE_MODE_SGMII) { + port->phy_interface == PHY_INTERFACE_MODE_SGMII || + port->phy_interface == PHY_INTERFACE_MODE_1000BASEX) { val = readl(port->base + MVPP22_GMAC_INT_SUM_MASK); val &= ~MVPP22_GMAC_INT_SUM_MASK_LINK_STAT; writel(val, port->base + MVPP22_GMAC_INT_SUM_MASK); @@ -4580,7 +4583,8 @@ static void mvpp22_gop_setup_irq(struct mvpp2_port *port) u32 val; if (phy_interface_mode_is_rgmii(port->phy_interface) || - port->phy_interface == PHY_INTERFACE_MODE_SGMII) { + port->phy_interface == PHY_INTERFACE_MODE_SGMII || + port->phy_interface == PHY_INTERFACE_MODE_1000BASEX) { val = readl(port->base + MVPP22_GMAC_INT_MASK); val |= MVPP22_GMAC_INT_MASK_LINK_STAT; writel(val, port->base + MVPP22_GMAC_INT_MASK); @@ -4605,6 +4609,7 @@ static int mvpp22_comphy_init(struct mvpp2_port *port) switch (port->phy_interface) { case PHY_INTERFACE_MODE_SGMII: + case PHY_INTERFACE_MODE_1000BASEX: mode = PHY_MODE_SGMII; break; case PHY_INTERFACE_MODE_10GKR: @@ -4625,7 +4630,8 @@ static void mvpp2_port_mii_gmac_configure_mode(struct mvpp2_port *port) { u32 val; - if (port->phy_interface == PHY_INTERFACE_MODE_SGMII) { + if (port->phy_interface == PHY_INTERFACE_MODE_SGMII || + port->phy_interface == PHY_INTERFACE_MODE_1000BASEX) { val = readl(port->base + MVPP22_GMAC_CTRL_4_REG); val |= MVPP22_CTRL4_SYNC_BYPASS_DIS | MVPP22_CTRL4_DP_CLK_SEL | MVPP22_CTRL4_QSGMII_BYPASS_ACTIVE; @@ -4640,9 +4646,11 @@ static void mvpp2_port_mii_gmac_configure_mode(struct mvpp2_port *port) writel(val, port->base + MVPP22_GMAC_CTRL_4_REG); } - /* The port is connected to a copper PHY */ val = readl(port->base + MVPP2_GMAC_CTRL_0_REG); - val &= ~MVPP2_GMAC_PORT_TYPE_MASK; + if (port->phy_interface == PHY_INTERFACE_MODE_1000BASEX) + val |= MVPP2_GMAC_PORT_TYPE_MASK; + else + val &= ~MVPP2_GMAC_PORT_TYPE_MASK; writel(val, port->base + MVPP2_GMAC_CTRL_0_REG); val = readl(port->base + MVPP2_GMAC_AUTONEG_CONFIG); @@ -4651,6 +4659,19 @@ static void mvpp2_port_mii_gmac_configure_mode(struct mvpp2_port *port) MVPP2_GMAC_AN_DUPLEX_EN; if (port->phy_interface == PHY_INTERFACE_MODE_SGMII) val |= MVPP2_GMAC_IN_BAND_AUTONEG; + + if (port->phy_interface == PHY_INTERFACE_MODE_1000BASEX) + /* 1000BaseX port cannot negotiate speed nor can it + * negotiate duplex: they are always operating with a + * fixed speed of 1000Mbps in full duplex, so force + * 1000 speed and full duplex here. + */ + val |= MVPP2_GMAC_CONFIG_GMII_SPEED | + MVPP2_GMAC_CONFIG_FULL_DUPLEX; + else + val |= MVPP2_GMAC_AN_SPEED_EN | + MVPP2_GMAC_AN_DUPLEX_EN; + writel(val, port->base + MVPP2_GMAC_AUTONEG_CONFIG); } @@ -4671,7 +4692,8 @@ static void mvpp2_port_mii_gmac_configure(struct mvpp2_port *port) /* Configure the PCS and in-band AN */ val = readl(port->base + MVPP2_GMAC_CTRL_2_REG); - if (port->phy_interface == PHY_INTERFACE_MODE_SGMII) { + if (port->phy_interface == PHY_INTERFACE_MODE_SGMII || + port->phy_interface == PHY_INTERFACE_MODE_1000BASEX) { val |= MVPP2_GMAC_INBAND_AN_MASK | MVPP2_GMAC_PCS_ENABLE_MASK; } else if (phy_interface_mode_is_rgmii(port->phy_interface)) { val &= ~MVPP2_GMAC_PCS_ENABLE_MASK; @@ -4733,7 +4755,8 @@ static void mvpp2_port_mii_set(struct mvpp2_port *port) mvpp22_port_mii_set(port); if (phy_interface_mode_is_rgmii(port->phy_interface) || - port->phy_interface == PHY_INTERFACE_MODE_SGMII) + port->phy_interface == PHY_INTERFACE_MODE_SGMII || + port->phy_interface == PHY_INTERFACE_MODE_1000BASEX) { mvpp2_port_mii_gmac_configure(port); else if (port->phy_interface == PHY_INTERFACE_MODE_10GKR) mvpp2_port_mii_xlg_configure(port); @@ -4810,7 +4833,8 @@ static void mvpp2_port_loopback_set(struct mvpp2_port *port) else val &= ~MVPP2_GMAC_GMII_LB_EN_MASK; - if (port->phy_interface == PHY_INTERFACE_MODE_SGMII) + if (port->phy_interface == PHY_INTERFACE_MODE_SGMII || + port->phy_interface == PHY_INTERFACE_MODE_1000BASEX) val |= MVPP2_GMAC_PCS_LB_EN_MASK; else val &= ~MVPP2_GMAC_PCS_LB_EN_MASK; @@ -6023,7 +6047,8 @@ static irqreturn_t mvpp2_link_status_isr(int irq, void *dev_id) link = true; } } else if (phy_interface_mode_is_rgmii(port->phy_interface) || - port->phy_interface == PHY_INTERFACE_MODE_SGMII) { + port->phy_interface == PHY_INTERFACE_MODE_SGMII || + port->phy_interface == PHY_INTERFACE_MODE_1000BASEX) { val = readl(port->base + MVPP22_GMAC_INT_STAT); if (val & MVPP22_GMAC_INT_STAT_LINK) { event = true; -- 2.14.3
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