From 1ba5f5745e480b7d1a5627f396f343e546f6c395 Mon Sep 17 00:00:00 2001
From: Bhaskar Upadhaya <Bhaskar.Upadhaya@nxp.com>
Date: Wed, 29 Nov 2017 12:21:43 +0530
Subject: [PATCH 10/22] staging: fsl_ppfe/eth: Disable autonegotiation for 2.5G
SGMII
PCS initialization sequence for 2.5G SGMII interface governs
auto negotiation to be in disabled mode
Signed-off-by: Bhaskar Upadhaya <Bhaskar.Upadhaya@nxp.com>
[ Srinidhi Rao : Ported this patch to photon linux from
qoriq-components linux 'linux-4.14-nxp'
(https://source.codeaurora.org/external/qoriq/qoriq-components/linux)
]
Signed-off-by: srinidhira0 <srinidhir@vmware.com>
---
drivers/staging/fsl_ppfe/pfe_eth.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/staging/fsl_ppfe/pfe_eth.c b/drivers/staging/fsl_ppfe/pfe_eth.c
index 8d2b1da0cc20..9e8850b28990 100644
--- a/drivers/staging/fsl_ppfe/pfe_eth.c
+++ b/drivers/staging/fsl_ppfe/pfe_eth.c
@@ -1174,6 +1174,7 @@ static void ls1012a_configure_serdes(struct net_device *ndev)
struct pfe_eth_priv_s *priv = pfe->eth.eth_priv[0];
int sgmii_2500 = 0;
struct mii_bus *bus = priv->mii_bus;
+ u16 value = 0;
if (priv->einfo->mii_config == PHY_INTERFACE_MODE_2500SGMII)
sgmii_2500 = 1;
@@ -1191,14 +1192,16 @@ static void ls1012a_configure_serdes(struct net_device *ndev)
pfe_eth_mdio_write(bus, 0, 0x4, 0x4001);
pfe_eth_mdio_write(bus, 0, 0x12, 0xa120);
pfe_eth_mdio_write(bus, 0, 0x13, 0x7);
+ /* Autonegotiation need to be disabled for 2.5G SGMII mode*/
+ value = 0x0140;
+ pfe_eth_mdio_write(bus, 0, 0x0, value);
} else {
pfe_eth_mdio_write(bus, 0, 0x14, 0xb);
pfe_eth_mdio_write(bus, 0, 0x4, 0x1a1);
pfe_eth_mdio_write(bus, 0, 0x12, 0x400);
pfe_eth_mdio_write(bus, 0, 0x13, 0x0);
+ pfe_eth_mdio_write(bus, 0, 0x0, 0x1140);
}
-
- pfe_eth_mdio_write(bus, 0, 0x0, 0x1140);
}
/*
--
2.14.2