Enable access to MDIO before zynq_gem_init is called. It enables read information about phy earlier.
Signed-off-by: Michal Simek michal.simek@xilinx.com ---
Changes in v3: None Changes in v2: None
drivers/net/zynq_gem.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-)
diff --git a/drivers/net/zynq_gem.c b/drivers/net/zynq_gem.c index d5540ec2155c..9ce1221e8d0f 100644 --- a/drivers/net/zynq_gem.c +++ b/drivers/net/zynq_gem.c @@ -314,6 +314,7 @@ static int zynq_phy_init(struct eth_device *dev) { int ret; struct zynq_gem_priv *priv = dev->priv; + struct zynq_gem_regs *regs = (struct zynq_gem_regs *)dev->iobase; const u32 supported = SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full | SUPPORTED_100baseT_Half | @@ -321,6 +322,9 @@ static int zynq_phy_init(struct eth_device *dev) SUPPORTED_1000baseT_Half | SUPPORTED_1000baseT_Full;
+ /* Enable only MDIO bus */ + writel(ZYNQ_GEM_NWCTRL_MDEN_MASK, ®s->nwctrl); + ret = phy_detection(dev); if (ret) { printf("GEM PHY init failed\n"); @@ -343,7 +347,6 @@ static int zynq_phy_init(struct eth_device *dev) static int zynq_gem_init(struct eth_device *dev, bd_t *bis) { u32 i; - int ret; unsigned long clk_rate = 0; struct zynq_gem_regs *regs = (struct zynq_gem_regs *)dev->iobase; struct zynq_gem_priv *priv = dev->priv; @@ -411,10 +414,6 @@ static int zynq_gem_init(struct eth_device *dev, bd_t *bis) priv->init++; }
- ret = zynq_phy_init(dev); - if (ret) - return ret; - phy_startup(priv->phydev);
if (!priv->phydev->link) { @@ -597,6 +596,7 @@ static int zynq_gem_miiphy_write(const char *devname, uchar addr, int zynq_gem_initialize(bd_t *bis, phys_addr_t base_addr, int phy_addr, u32 emio) { + int ret; struct eth_device *dev; struct zynq_gem_priv *priv; void *bd_space; @@ -650,6 +650,10 @@ int zynq_gem_initialize(bd_t *bis, phys_addr_t base_addr, miiphy_register(dev->name, zynq_gem_miiphyread, zynq_gem_miiphy_write); priv->bus = miiphy_get_dev_by_name(dev->name);
+ ret = zynq_phy_init(dev); + if (ret) + return ret; + return 1; }