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authorShengzhou Liu <Shengzhou.Liu@freescale.com>2014-10-23 17:20:57 +0800
committerYork Sun <yorksun@freescale.com>2014-11-19 18:17:12 -0800
commitc35f8693942d8284c635592f263a0fe11abe1d1d (patch)
tree2856c070bf6d583545d52bd79adaf517c83b25a9 /drivers
parent3ce21c87c196d9a0f446e572a30bdb6cdb82d769 (diff)
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net/fm: add 2.5G SGMII support
As auto-negotiation is not supported for 2.5G SGMII, we need to add a new type PHY_INTERFACE_MODE_SGMII_2500 to differentiate SGMII-1G and SGMII-2.5G with different setting for auto-negotiation. Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com> Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/fm/eth.c16
1 files changed, 12 insertions, 4 deletions
diff --git a/drivers/net/fm/eth.c b/drivers/net/fm/eth.c
index 218a5ed..137886c 100644
--- a/drivers/net/fm/eth.c
+++ b/drivers/net/fm/eth.c
@@ -39,9 +39,14 @@ static void dtsec_configure_serdes(struct fm_eth *priv)
u32 value;
struct mii_dev bus;
bus.priv = priv->mac->phyregs;
+ bool sgmii_2500 = (priv->enet_if ==
+ PHY_INTERFACE_MODE_SGMII_2500) ? true : false;
+
+ /* SGMII IF mode + AN enable only for 1G SGMII, not for 2.5G */
+ value = PHY_SGMII_IF_MODE_SGMII;
+ if (!sgmii_2500)
+ value |= PHY_SGMII_IF_MODE_AN;
- /* SGMII IF mode + AN enable */
- value = PHY_SGMII_IF_MODE_AN | PHY_SGMII_IF_MODE_SGMII;
memac_mdio_write(&bus, 0, MDIO_DEVAD_NONE, 0x14, value);
/* Dev ability according to SGMII specification */
@@ -54,7 +59,9 @@ static void dtsec_configure_serdes(struct fm_eth *priv)
memac_mdio_write(&bus, 0, MDIO_DEVAD_NONE, 0x12, 0xd40);
/* Restart AN */
- value = PHY_SGMII_CR_DEF_VAL | PHY_SGMII_CR_RESET_AN;
+ value = PHY_SGMII_CR_DEF_VAL;
+ if (!sgmii_2500)
+ value |= PHY_SGMII_CR_RESET_AN;
memac_mdio_write(&bus, 0, MDIO_DEVAD_NONE, 0, value);
#else
struct dtsec *regs = priv->mac->base;
@@ -83,7 +90,8 @@ static void dtsec_init_phy(struct eth_device *dev)
out_be32(&regs->tbipa, CONFIG_SYS_TBIPA_VALUE);
#endif
- if (fm_eth->enet_if == PHY_INTERFACE_MODE_SGMII)
+ if (fm_eth->enet_if == PHY_INTERFACE_MODE_SGMII ||
+ fm_eth->enet_if == PHY_INTERFACE_MODE_SGMII_2500)
dtsec_configure_serdes(fm_eth);
}