1 files changed, 131 insertions, 0 deletions
diff --git a/target/linux/layerscape/patches-5.4/701-net-0055-sdk_fman-DPAA-dTSEC-ports-fail-to-work-when-link-cha.patch b/target/linux/layerscape/patches-5.4/701-net-0055-sdk_fman-DPAA-dTSEC-ports-fail-to-work-when-link-cha.patch
new file mode 100644
index 0000000000..e17c2a7a4d
--- /dev/null
+++ b/target/linux/layerscape/patches-5.4/701-net-0055-sdk_fman-DPAA-dTSEC-ports-fail-to-work-when-link-cha.patch
@@ -0,0 +1,131 @@
+From 2b3d05ed1cb560b3a0b0721435c2fd73a19bd9bc Mon Sep 17 00:00:00 2001
+From: Iordache Florinel-R70177 <florinel.iordache@nxp.com>
+Date: Mon, 29 May 2017 09:25:24 +0300
+Subject: [PATCH] sdk_fman: DPAA-dTSEC ports fail to work when link changes
+
+Signed-off-by: Iordache Florinel-R70177 <florinel.iordache@nxp.com>
+---
+ .../freescale/sdk_fman/Peripherals/FM/MAC/dtsec.c  | 57 ++++++++++++++++++----
+ 1 file changed, 48 insertions(+), 9 deletions(-)
+
+--- a/drivers/net/ethernet/freescale/sdk_fman/Peripherals/FM/MAC/dtsec.c
++++ b/drivers/net/ethernet/freescale/sdk_fman/Peripherals/FM/MAC/dtsec.c
+@@ -386,6 +386,7 @@ static void FreeInitResources(t_Dtsec *p
+ static t_Error GracefulStop(t_Dtsec *p_Dtsec, e_CommMode mode)
+ {
+     struct dtsec_regs *p_MemMap;
++    int pollTimeout = 0;
+ 
+     ASSERT_COND(p_Dtsec);
+ 
+@@ -408,16 +409,32 @@ static t_Error GracefulStop(t_Dtsec *p_D
+     }
+ 
+     if (mode & e_COMM_MODE_TX)
+-#if defined(FM_GTS_ERRATA_DTSEC_A004) || defined(FM_GTS_AFTER_MAC_ABORTED_FRAME_ERRATA_DTSEC_A0012)
+-    if (p_Dtsec->fmMacControllerDriver.fmRevInfo.majorRev == 2)
+-        DBG(INFO, ("GTS not supported due to DTSEC_A004 errata."));
+-#else  /* not defined(FM_GTS_ERRATA_DTSEC_A004) ||... */
+-#ifdef FM_GTS_UNDERRUN_ERRATA_DTSEC_A0014
+-        DBG(INFO, ("GTS not supported due to DTSEC_A0014 errata."));
+-#else  /* FM_GTS_UNDERRUN_ERRATA_DTSEC_A0014 */
++    {
++#if defined(FM_GTS_ERRATA_DTSEC_A004)
++        if (p_Dtsec->fmMacControllerDriver.fmRevInfo.majorRev == 2)
++            DBG(INFO, ("GTS not supported due to DTSEC_A004 errata."));
++#else  /* not defined(FM_GTS_ERRATA_DTSEC_A004) */
++
+         fman_dtsec_stop_tx(p_MemMap);
+-#endif /* FM_GTS_UNDERRUN_ERRATA_DTSEC_A0014 */
+-#endif /* defined(FM_GTS_ERRATA_DTSEC_A004) ||...  */
++
++#if defined(FM_GTS_UNDERRUN_ERRATA_DTSEC_A0014) || defined(FM_GTS_AFTER_MAC_ABORTED_FRAME_ERRATA_DTSEC_A0012)
++        XX_UDelay(10);
++#endif /* FM_GTS_UNDERRUN_ERRATA_DTSEC_A0014 || FM_GTS_AFTER_MAC_ABORTED_FRAME_ERRATA_DTSEC_A0012 */
++#endif /* defined(FM_GTS_ERRATA_DTSEC_A004) */
++    }
++
++    /* Poll GRSC/GTSC bits in IEVENT register until both are set */
++#if defined(FM_GRS_ERRATA_DTSEC_A002) || defined(FM_GTS_ERRATA_DTSEC_A004) || defined(FM_GTS_AFTER_MAC_ABORTED_FRAME_ERRATA_DTSEC_A0012) || defined(FM_GTS_UNDERRUN_ERRATA_DTSEC_A0014) || defined(FM_GTS_AFTER_DROPPED_FRAME_ERRATA_DTSEC_A004839)
++    XX_UDelay(10);
++#else
++    while (fman_dtsec_get_event(p_MemMap, DTSEC_IMASK_GRSCEN | DTSEC_IMASK_GTSCEN) != (DTSEC_IMASK_GRSCEN | DTSEC_IMASK_GTSCEN))
++    {
++        if (pollTimeout == 100)
++            break;
++        XX_UDelay(1);
++        pollTimeout++;
++    }
++#endif
+ 
+     return E_OK;
+ }
+@@ -632,7 +649,12 @@ static t_Error DtsecSetTxPauseFrames(t_H
+                       " value should be greater than 320."));
+ #endif /* FM_BAD_TX_TS_IN_B_2_B_ERRATA_DTSEC_A003 */
+ 
++    GracefulStop(p_Dtsec, e_COMM_MODE_RX_AND_TX);
++
+     fman_dtsec_set_tx_pause_frames(p_Dtsec->p_MemMap, pauseTime);
++
++    GracefulRestart(p_Dtsec, e_COMM_MODE_RX_AND_TX);
++
+     return E_OK;
+ }
+ 
+@@ -653,8 +675,12 @@ static t_Error DtsecRxIgnoreMacPause(t_H
+     SANITY_CHECK_RETURN_ERROR(p_Dtsec, E_INVALID_STATE);
+     SANITY_CHECK_RETURN_ERROR(!p_Dtsec->p_DtsecDriverParam, E_INVALID_STATE);
+ 
++    GracefulStop(p_Dtsec, e_COMM_MODE_RX_AND_TX);
++
+     fman_dtsec_handle_rx_pause(p_Dtsec->p_MemMap, accept_pause);
+ 
++    GracefulRestart(p_Dtsec, e_COMM_MODE_RX_AND_TX);
++
+     return E_OK;
+ }
+ 
+@@ -787,8 +813,13 @@ static t_Error DtsecModifyMacAddress (t_
+     /* Initialize MAC Station Address registers (1 & 2)    */
+     /* Station address have to be swapped (big endian to little endian */
+     p_Dtsec->addr = ENET_ADDR_TO_UINT64(*p_EnetAddr);
++
++    GracefulStop(p_Dtsec, e_COMM_MODE_RX_AND_TX);
++
+     fman_dtsec_set_mac_address(p_Dtsec->p_MemMap, (uint8_t *)(*p_EnetAddr));
+ 
++    GracefulRestart(p_Dtsec, e_COMM_MODE_RX_AND_TX);
++
+     return E_OK;
+ }
+ 
+@@ -1076,8 +1107,12 @@ static t_Error DtsecSetWakeOnLan(t_Handl
+     SANITY_CHECK_RETURN_ERROR(p_Dtsec, E_INVALID_STATE);
+     SANITY_CHECK_RETURN_ERROR(!p_Dtsec->p_DtsecDriverParam, E_INVALID_STATE);
+ 
++    GracefulStop(p_Dtsec, e_COMM_MODE_RX_AND_TX);
++
+     fman_dtsec_set_wol(p_Dtsec->p_MemMap, en);
+ 
++    GracefulRestart(p_Dtsec, e_COMM_MODE_RX_AND_TX);
++
+     return E_OK;
+ }
+ 
+@@ -1098,11 +1133,15 @@ static t_Error DtsecAdjustLink(t_Handle
+     enet_speed = (enum enet_speed) ENET_SPEED_FROM_MODE(p_Dtsec->enetMode);
+     p_Dtsec->halfDuplex = !fullDuplex;
+ 
++    GracefulStop(p_Dtsec, e_COMM_MODE_RX_AND_TX);
++
+     err = fman_dtsec_adjust_link(p_Dtsec->p_MemMap, enet_interface, enet_speed, fullDuplex);
+ 
+     if (err == -EINVAL)
+         RETURN_ERROR(MAJOR, E_CONFLICT, ("Ethernet interface does not support Half Duplex mode"));
+ 
++    GracefulRestart(p_Dtsec, e_COMM_MODE_RX_AND_TX);
++
+     return (t_Error)err;
+ }
+