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net: zynq_gem: Add support for SGMII interface
Add support of SGMII interface for zynq GEM. Read xlnx,emio property from DT. Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
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@ -57,6 +57,8 @@ DECLARE_GLOBAL_DATA_PTR;
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#define ZYNQ_GEM_NWCFG_SPEED1000 0x000000400 /* 1Gbps operation */
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#define ZYNQ_GEM_NWCFG_SPEED1000 0x000000400 /* 1Gbps operation */
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#define ZYNQ_GEM_NWCFG_FDEN 0x000000002 /* Full Duplex mode */
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#define ZYNQ_GEM_NWCFG_FDEN 0x000000002 /* Full Duplex mode */
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#define ZYNQ_GEM_NWCFG_FSREM 0x000020000 /* FCS removal */
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#define ZYNQ_GEM_NWCFG_FSREM 0x000020000 /* FCS removal */
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#define ZYNQ_GEM_NWCFG_SGMII_ENBL 0x080000000 /* SGMII Enable */
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#define ZYNQ_GEM_NWCFG_PCS_SEL 0x000000800 /* PCS select */
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#ifdef CONFIG_ARM64
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#ifdef CONFIG_ARM64
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#define ZYNQ_GEM_NWCFG_MDCCLKDIV 0x000100000 /* Div pclk by 64, max 160MHz */
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#define ZYNQ_GEM_NWCFG_MDCCLKDIV 0x000100000 /* Div pclk by 64, max 160MHz */
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#else
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#else
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@ -330,10 +332,12 @@ static int zynq_phy_init(struct udevice *dev)
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/* Enable only MDIO bus */
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/* Enable only MDIO bus */
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writel(ZYNQ_GEM_NWCTRL_MDEN_MASK, ®s->nwctrl);
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writel(ZYNQ_GEM_NWCTRL_MDEN_MASK, ®s->nwctrl);
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ret = phy_detection(dev);
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if (priv->interface != PHY_INTERFACE_MODE_SGMII) {
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if (ret) {
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ret = phy_detection(dev);
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printf("GEM PHY init failed\n");
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if (ret) {
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return ret;
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printf("GEM PHY init failed\n");
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return ret;
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}
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}
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}
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priv->phydev = phy_connect(priv->bus, priv->phyaddr, dev,
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priv->phydev = phy_connect(priv->bus, priv->phyaddr, dev,
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@ -351,7 +355,7 @@ static int zynq_phy_init(struct udevice *dev)
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static int zynq_gem_init(struct udevice *dev)
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static int zynq_gem_init(struct udevice *dev)
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{
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{
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u32 i;
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u32 i, nwconfig;
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unsigned long clk_rate = 0;
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unsigned long clk_rate = 0;
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struct zynq_gem_priv *priv = dev_get_priv(dev);
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struct zynq_gem_priv *priv = dev_get_priv(dev);
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struct zynq_gem_regs *regs = priv->iobase;
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struct zynq_gem_regs *regs = priv->iobase;
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@ -426,14 +430,20 @@ static int zynq_gem_init(struct udevice *dev)
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return -1;
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return -1;
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}
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}
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nwconfig = ZYNQ_GEM_NWCFG_INIT;
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if (priv->interface == PHY_INTERFACE_MODE_SGMII)
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nwconfig |= ZYNQ_GEM_NWCFG_SGMII_ENBL |
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ZYNQ_GEM_NWCFG_PCS_SEL;
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switch (priv->phydev->speed) {
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switch (priv->phydev->speed) {
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case SPEED_1000:
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case SPEED_1000:
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writel(ZYNQ_GEM_NWCFG_INIT | ZYNQ_GEM_NWCFG_SPEED1000,
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writel(nwconfig | ZYNQ_GEM_NWCFG_SPEED1000,
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®s->nwcfg);
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®s->nwcfg);
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clk_rate = ZYNQ_GEM_FREQUENCY_1000;
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clk_rate = ZYNQ_GEM_FREQUENCY_1000;
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break;
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break;
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case SPEED_100:
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case SPEED_100:
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writel(ZYNQ_GEM_NWCFG_INIT | ZYNQ_GEM_NWCFG_SPEED100,
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writel(nwconfig | ZYNQ_GEM_NWCFG_SPEED100,
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®s->nwcfg);
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®s->nwcfg);
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clk_rate = ZYNQ_GEM_FREQUENCY_100;
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clk_rate = ZYNQ_GEM_FREQUENCY_100;
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break;
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break;
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@ -663,6 +673,8 @@ static int zynq_gem_ofdata_to_platdata(struct udevice *dev)
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}
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}
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priv->interface = pdata->phy_interface;
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priv->interface = pdata->phy_interface;
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priv->emio = fdtdec_get_bool(gd->fdt_blob, dev->of_offset, "xlnx,emio");
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printf("ZYNQ GEM: %lx, phyaddr %d, interface %s\n", (ulong)priv->iobase,
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printf("ZYNQ GEM: %lx, phyaddr %d, interface %s\n", (ulong)priv->iobase,
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priv->phyaddr, phy_string_for_interface(priv->interface));
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priv->phyaddr, phy_string_for_interface(priv->interface));
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