From 066a54fbc163e660656c9cb4971b6da520adea19 Mon Sep 17 00:00:00 2001
From: Simon <7248394+Simon-Leung@users.noreply.github.com>
Date: Fri, 29 Mar 2019 09:43:32 +0800
Subject: [PATCH] [bsp][tm4c129x] Update drv_eth.c

Decide whether to close eth hardware checksum by definition.
---
 bsp/tm4c129x/drivers/drv_eth.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/bsp/tm4c129x/drivers/drv_eth.c b/bsp/tm4c129x/drivers/drv_eth.c
index d439fabce9..9545620d8d 100644
--- a/bsp/tm4c129x/drivers/drv_eth.c
+++ b/bsp/tm4c129x/drivers/drv_eth.c
@@ -634,8 +634,13 @@ tivaif_transmit(net_device_t dev, struct pbuf *p)
           pDesc->Desc.ui32CtrlStatus = 0;
       }
 
+#ifdef RT_LWIP_USING_HW_CHECKSUM
       pDesc->Desc.ui32CtrlStatus |= (DES0_TX_CTRL_IP_ALL_CKHSUMS |
                                      DES0_TX_CTRL_CHAINED);
+#else
+      pDesc->Desc.ui32CtrlStatus |= (DES0_TX_CTRL_NO_CHKSUM |
+                                     DES0_TX_CTRL_CHAINED);
+#endif
 
       /* Decrement our descriptor counter, move on to the next buffer in the
        * pbuf chain. */
-- 
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