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59 lines
2.6 KiB
Diff
59 lines
2.6 KiB
Diff
From e36f12a1d319b53d5f52b91671188a74e0a1fb41 Mon Sep 17 00:00:00 2001
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From: Madalin Bucur <madalin.bucur@nxp.com>
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Date: Tue, 23 Apr 2019 16:38:19 +0300
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Subject: [PATCH] sdk_dpaa: SGMII 2500 needs AN disabled
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Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com>
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---
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.../ethernet/freescale/sdk_fman/Peripherals/FM/MAC/memac.c | 14 ++++++++++----
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.../ethernet/freescale/sdk_fman/Peripherals/FM/MAC/memac.h | 1 +
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2 files changed, 11 insertions(+), 4 deletions(-)
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--- a/drivers/net/ethernet/freescale/sdk_fman/Peripherals/FM/MAC/memac.c
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+++ b/drivers/net/ethernet/freescale/sdk_fman/Peripherals/FM/MAC/memac.c
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@@ -84,6 +84,7 @@ static void SetupSgmiiInternalPhy(t_Mema
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{
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uint16_t tmpReg16;
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e_EnetMode enetMode;
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+ bool autoneg_disabled = p_Memac->enetMode == e_ENET_MODE_SGMII_2500;
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/* In case the higher MACs are used (i.e. the MACs that should support 10G),
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speed=10000 is provided for SGMII ports. Temporary modify enet mode
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@@ -92,8 +93,9 @@ static void SetupSgmiiInternalPhy(t_Mema
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/* SGMII mode + AN enable */
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tmpReg16 = PHY_SGMII_IF_MODE_AN | PHY_SGMII_IF_MODE_SGMII;
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- if ((p_Memac->enetMode) == e_ENET_MODE_SGMII_2500)
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- tmpReg16 = PHY_SGMII_CR_PHY_RESET | PHY_SGMII_IF_SPEED_GIGABIT | PHY_SGMII_IF_MODE_SGMII;
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+ /* unless SGMII 2500 where AN needs to be disabled */
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+ if (autoneg_disabled)
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+ tmpReg16 = PHY_SGMII_IF_SPEED_GIGABIT | PHY_SGMII_IF_MODE_SGMII;
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p_Memac->enetMode = MAKE_ENET_MODE(ENET_INTERFACE_FROM_MODE(p_Memac->enetMode), e_ENET_SPEED_1000);
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MEMAC_MII_WritePhyReg(p_Memac, phyAddr, 0x14, tmpReg16);
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@@ -116,8 +118,12 @@ static void SetupSgmiiInternalPhy(t_Mema
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MEMAC_MII_WritePhyReg(p_Memac, phyAddr, 0x13, 0x0007);
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MEMAC_MII_WritePhyReg(p_Memac, phyAddr, 0x12, 0xa120);
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- /* Restart AN */
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- tmpReg16 = PHY_SGMII_CR_DEF_VAL | PHY_SGMII_CR_RESET_AN;
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+ if (!autoneg_disabled)
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+ /* Restart AN */
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+ tmpReg16 = PHY_SGMII_CR_DEF_VAL | PHY_SGMII_CR_RESET_AN;
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+ else
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+ /* Disable AN */
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+ tmpReg16 = PHY_SGMII_CR_DEF_VAL & ~PHY_SGMII_CR_AN_EN;
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MEMAC_MII_WritePhyReg(p_Memac, phyAddr, 0x0, tmpReg16);
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/* Restore original enet mode */
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--- a/drivers/net/ethernet/freescale/sdk_fman/Peripherals/FM/MAC/memac.h
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+++ b/drivers/net/ethernet/freescale/sdk_fman/Peripherals/FM/MAC/memac.h
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@@ -93,6 +93,7 @@ typedef struct
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#define PHY_SGMII_CR_PHY_RESET 0x8000
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#define PHY_SGMII_CR_RESET_AN 0x0200
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#define PHY_SGMII_CR_DEF_VAL 0x1140
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+#define PHY_SGMII_CR_AN_EN 0x1000
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#define PHY_SGMII_DEV_ABILITY_SGMII 0x4001
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#define PHY_SGMII_DEV_ABILITY_1000X 0x01A0
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#define PHY_SGMII_IF_SPEED_GIGABIT 0x0008
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