diff options
| author | Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com> | 2016-02-05 13:22:11 +0530 |
|---|---|---|
| committer | Michal Simek <michal.simek@xilinx.com> | 2016-04-04 20:10:44 +0200 |
| commit | a06c341faadf35c58675ff5af8f6c164d07d4f20 (patch) | |
| tree | bb7ba938ceeb37fb68165d2a2fa2b0bf59e5e12e /drivers/net | |
| parent | ed6fad3e25e945e7042a53e129adde6a27476c90 (diff) | |
| download | talos-obmc-uboot-a06c341faadf35c58675ff5af8f6c164d07d4f20.tar.gz talos-obmc-uboot-a06c341faadf35c58675ff5af8f6c164d07d4f20.zip | |
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>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/zynq_gem.c | 26 |
1 files changed, 19 insertions, 7 deletions
diff --git a/drivers/net/zynq_gem.c b/drivers/net/zynq_gem.c index b3821c31a9..4049e1cb94 100644 --- a/drivers/net/zynq_gem.c +++ b/drivers/net/zynq_gem.c @@ -57,6 +57,8 @@ DECLARE_GLOBAL_DATA_PTR; #define ZYNQ_GEM_NWCFG_SPEED1000 0x000000400 /* 1Gbps operation */ #define ZYNQ_GEM_NWCFG_FDEN 0x000000002 /* Full Duplex mode */ #define ZYNQ_GEM_NWCFG_FSREM 0x000020000 /* FCS removal */ +#define ZYNQ_GEM_NWCFG_SGMII_ENBL 0x080000000 /* SGMII Enable */ +#define ZYNQ_GEM_NWCFG_PCS_SEL 0x000000800 /* PCS select */ #ifdef CONFIG_ARM64 #define ZYNQ_GEM_NWCFG_MDCCLKDIV 0x000100000 /* Div pclk by 64, max 160MHz */ #else @@ -330,10 +332,12 @@ static int zynq_phy_init(struct udevice *dev) /* Enable only MDIO bus */ writel(ZYNQ_GEM_NWCTRL_MDEN_MASK, ®s->nwctrl); - ret = phy_detection(dev); - if (ret) { - printf("GEM PHY init failed\n"); - return ret; + if (priv->interface != PHY_INTERFACE_MODE_SGMII) { + ret = phy_detection(dev); + if (ret) { + printf("GEM PHY init failed\n"); + return ret; + } } priv->phydev = phy_connect(priv->bus, priv->phyaddr, dev, @@ -351,7 +355,7 @@ static int zynq_phy_init(struct udevice *dev) static int zynq_gem_init(struct udevice *dev) { - u32 i; + u32 i, nwconfig; unsigned long clk_rate = 0; struct zynq_gem_priv *priv = dev_get_priv(dev); struct zynq_gem_regs *regs = priv->iobase; @@ -426,14 +430,20 @@ static int zynq_gem_init(struct udevice *dev) return -1; } + nwconfig = ZYNQ_GEM_NWCFG_INIT; + + if (priv->interface == PHY_INTERFACE_MODE_SGMII) + nwconfig |= ZYNQ_GEM_NWCFG_SGMII_ENBL | + ZYNQ_GEM_NWCFG_PCS_SEL; + switch (priv->phydev->speed) { case SPEED_1000: - writel(ZYNQ_GEM_NWCFG_INIT | ZYNQ_GEM_NWCFG_SPEED1000, + writel(nwconfig | ZYNQ_GEM_NWCFG_SPEED1000, ®s->nwcfg); clk_rate = ZYNQ_GEM_FREQUENCY_1000; break; case SPEED_100: - writel(ZYNQ_GEM_NWCFG_INIT | ZYNQ_GEM_NWCFG_SPEED100, + writel(nwconfig | ZYNQ_GEM_NWCFG_SPEED100, ®s->nwcfg); clk_rate = ZYNQ_GEM_FREQUENCY_100; break; @@ -663,6 +673,8 @@ static int zynq_gem_ofdata_to_platdata(struct udevice *dev) } priv->interface = pdata->phy_interface; + priv->emio = fdtdec_get_bool(gd->fdt_blob, dev->of_offset, "xlnx,emio"); + printf("ZYNQ GEM: %lx, phyaddr %d, interface %s\n", (ulong)priv->iobase, priv->phyaddr, phy_string_for_interface(priv->interface)); |
